M29W640FB70N6F - Numonyx - Product.Network

September 2008 Rev 8 1/71

M29W640FT

M29W640FB

64 Mbit (8Mb x8 or 4Mb x16, Page, Boot Block)

3V Supply Flash Memory

Feature summary

■Supply voltage

–V

CC = 2.7V to 3.6V for Program, Erase,

Read

–V

PP =12 V for Fast Program (optional)

■Asynchronous Random/Page Read

– Page Width: 4 Words

– Page Access: 25ns

– Random Access: 60ns, 70ns

■Programming time

–10μs per Byte/Word typical

– 4 Words / 8 Bytes Program

■135 Memory Blocks

– 1 Boot Block and 7 Parameter Blocks,

8 KBytes each (Top or Bottom location)

– 127 Main Blocks, 64 KBytes each

■Program/Erase Controller

– Embedded Byte/Word Program algorithms

■Program/Erase Suspend and Resume

– Read from any Block during Program

Suspend

– Read and Program another Block during

Erase Suspend

■Unlock Bypass Program command

– Faster Production/Batch Programming

■VPP/WP pin for Fast Program and Write Protect

■Temporary Block Unprotection mode

■Common Flash Interface

– 64-bit Security Code

■Extended Memory Block

■Extra block used as security block or to store

additional information

■Low power consumption

– Standby and Automatic Standby

■100,000 Program/Erase cycles per block

■Electronic Signature

– Manufacturer Code: 0020h

■ECOPACK® packages

FBGA

TSOP48 (N)

12 x 20mm

TFBGA48 (ZA)

6x8mm

Table 1. Device Cod e s

Root Part Number Device Code

M29W640FT 22EDh

M29W640FB 22FDh

www.Numonyx.com

Content s M29W 640FT, M29W6 40FB
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Contents
Summary description  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Signal descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1 Address Inputs (A0-A21)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2 Data Inputs/Outputs (DQ0-DQ7)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
3 Data Inputs/Outputs (DQ8-DQ14)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
4 Data Input/Output or Address Input (DQ15A–1)   . . . . . . . . . . . . . . . . . . . .11
5 Chip Enable (E)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
6 Output Enable (G)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
7 Write Enable (W)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
8 VPP/Write Protect (VPP/WP)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
9 Reset/Block Temporary Unprotect (RP)  . . . . . . . . . . . . . . . . . . . . . . . . . .  13
10 Ready/Busy Output (RB)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
11 Byte/Word Organization Select (BYTE)  . . . . . . . . . . . . . . . . . . . . . . . . . .  13
12 VCC Supply Voltage (2.7V to 3.6V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
13 VSS Ground   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
Bus operations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1 Bus Read  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
2 Bus Write  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
3 Output Disable  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
4 Standby   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
5 Automatic Standby  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16
6 Special Bus operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16
6.1 Electronic Signature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.2 Block Protect and Chip Unprotect  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Command interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1 Standard commands   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  18
1.1 Read/Reset command  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1.2 Auto Select command  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1.3 Read CFI Query command  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

M29 W640FT, M29 W640FB Content s
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1.4 Chip Erase command   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
1.5 Block Erase command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1.6 Erase Suspend command  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1.7 Erase Resume command   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
1.8 Program Suspend command  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
1.9 Program Resume command  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
1.10 Program command   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2 Fast Program commands  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
2.1 Double Byte Program command  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.2 Quadruple Byte Program command   . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.3 Octuple Byte Program command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.4 Double Word Program command   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
2.5 Quadruple Word Program command . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.6 Unlock Bypass command   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.7 Unlock Bypass Program command  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
2.8 Unlock Bypass Reset command  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3 Block Protection commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
3.1 Enter Extended Block command  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.2 Exit Extended Block command   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3.3 Block Protect and Chip Unprotect commands  . . . . . . . . . . . . . . . . . . . . 26
Status Register  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
1 Data Polling Bit (DQ7)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
2 Toggle Bit (DQ6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
3 Error Bit (DQ5)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
4 Erase Timer Bit (DQ3)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
5 Alternative Toggle Bit (DQ2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
DC and AC parameters  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Package mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Part numbering  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Appendix A Block addresses  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Content s M29W 640FT, M29W6 40FB

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Ap pe n d ix B C o mm o n F la s h Inter f ace (CFI ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Appendix C Extended Memory Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

C.1 Factory Locked Extended Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

C.2 Customer Lockable Extended Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Appendix D Block protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

D.1 Programmer technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

D.2 In-System technique . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

M29 W640FT, M29W640FB List of tables
 5/71
List of tables
Table 1. Device Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Signal names  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 3. Hardware protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 4. Bus operations, BYTE = VIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 5. Bus operations, BYTE = VIH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 6. Commands, 16-bit mode, BYTE = VIH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 7. Commands, 8-bit mode, BYTE = VIL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Table 8. Program, Erase times and Program, Erase Endurance cycles. . . . . . . . . . . . . . . . . . . . . . 29
Table 9. Status Register Bits  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 10. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 11. Operating and AC measurement conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 12. Device capacitance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Table 13. DC characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Table 14. Read AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 15. Write AC characteristics, Write Enable controlled  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Table 16. Write AC characteristics, Chip Enable controlled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Table 17. Reset/Block Temporary Unprotect AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Table 18. TSOP48 – 48 lead Plastic Thin Small Outline, 12 x 20mm, package mechanical data . . . 44
Table 19. TFBGA48 6x8mm - 6x8 active ball array, 0.8mm pitch, package mechanical data . . . . . . 45
Table 20. Ordering information scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Table 21. Top Boot Block addresses, M29W640FT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Table 22. Bottom Boot Block addresses, M29W640FB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Table 23. Query structure overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Table 24. CFI Query Identification String . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Table 25. CFI Query System Interface Information  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Table 26.  Device Geometry Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Table 27. Primary Algorithm-specific Extended Query table  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Table 28. Security Code Area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Table 29. Extended Block address and data  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Table 30. Programmer technique bus operations, BYTE = VIH or VIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Table 31. Document revision history  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

List o f figu res M29W 640FT, M29 W640FB
6/71   
List of figures
Figure 1. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 2. TSOP connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 3. TFBGA48 connections (top view through package) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 4. Data Polling flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Figure 5. Data Toggle flowchart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Figure 6. AC measurement I/O waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 7. AC measurement Load Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Figure 8. Read Mode AC waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 9. Page Read AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Figure 10. Write AC waveforms, Write Enable controlled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 11. Write AC waveforms, Chip Enable controlled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 12. Reset/Block Temporary Unprotect AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 13. Accelerated Program Timing waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 14. TSOP48 – 48 lead Plastic Thin Small Outline, 12 x 20mm, top view package outline . . . . 44
Figure 15. TFBGA48 6x8mm - 6x8 active ball array, 0.8mm pitch, package outline . . . . . . . . . . . . . . 45
Figure 16. Programmer Equipment Group Protect flowchart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Figure 17. Programmer Equipment Chip Unprotect flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Figure 18. In-System Equipment Group Protect flowchart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Figure 19. In-System Equipment Chip Unprotect flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

M29 W640FT, M29W640FB Sum mary descrip ti o n

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1 Summary description

The M29W640F is a 64 Mbit (8Mb x8 or 4Mb x16) non-volatile memory that can be read,

erased and reprogrammed. These operations can be performed using a single low voltage

(2.7 to 3.6V) supply. On power-up the memory defaults to its Read mode.

The memory is divided into blocks that can be erased independently so it is possible to

preserve valid data while old data is erased. Blocks can be protected in units of 256 KByte

(generally groups of four 64 KByte blocks), to prevent accidental Program or Erase

commands from modifying the memory. Program and Erase commands are written to the

Command Interface of the memory. An on-chip Program/Erase Controller simplifies the

process of programming or erasing the memory by taking care of all of the special

operations that are required to update the memory contents. The end of a program or erase

operation can be detected and any error conditions identified. The command set required to

control the memory is consistent with JEDEC standards.

The device features an asymmetrical blocked architecture. The device has an array of 135

blocks:

■8 Parameters Blocks of 8 KBytes each (or 4 KWords each)

■127 Main Blocks of 64 KBytes each (or 32 KWords each)

M29W640FT has the Parameter Blocks at the top of the memory address space while the

M29W640FB locates the Parameter Blocks starting from the bottom.

The M29W640F has an extra block, the Extended Block, of 128 Words in x16 mode or of

256 Byte in x8 mode that can be accessed using a dedicated command. The Extended

Block can be protected and so is useful for storing security information. However the

protection is not reversible, once protected the protection cannot be undone.

Chip Enable, Output Enable and Write Enable signals control the bus operation of the

memory. They allow simple connection to most microprocessors, often without additional

logic.

The VPP/WP signal is used to enable faster programming of the device, enabling multiple

word/byte programming. If this signal is held at VSS, the boot block, and its adjacent

parameter block, are protected from program and erase operations.

The device supports Asynchronous Random Read and Page Read from all blocks of the

memory array.

The memories are offered in TSOP48 (12x 20mm) and TFBGA48 (6x8mm, 0.8mm pitch)

packages.

In order to meet environmental requirements, Numonyx offers the M29W640FT and the

M29W640FB in ECOPACK® packages. ECOPACK packages are Lead-free. The category

of second Level Interconnect is marked on the package and on the inner box label, in

compliance with JEDEC Standard JESD97. The maximum ratings related to soldering

conditions are also marked on the inner box label. ECOPACK is an Numonyx trademark.

ECOPACK specifications are available at: www.Numonyx.com.

The memory is delivered with all the bits erased (set to 1).

Sum mary des cript ion M29W640FT, M29 W640FB

8/71

Figure 1. Logic diagram

Table 2. Signal nam es

A0-A21 Address Inputs

DQ0-DQ7 Data Inputs/Outputs

DQ8-DQ14 Data Inputs/Outputs

DQ15A–1 (or DQ15) Data Input/Output or Address Input (or Data Input/Output)

EChip Enable

GOutput Enable

WWrite Enable

RP Reset/Block Temporary Unprotect

RB Ready/Busy Output

BYTE Byte/Word Organization Select

VCC Supply voltage

VPP/WP Supply voltage for Fast Program (optional) or Write Protect

VSS Ground

NC Not Connected Internally

AI11250

A0-A21

DQ0-DQ1

VCC

M29W640FT

M29W640FB

VSS

DQ15A–1

BYTE

VPP/WP

M29 W640FT, M29W640FB Sum mary descrip ti o n

9/71

Figure 2. TSOP connections

DQ3

DQ9

DQ2

A6 DQ0

DQ6

A9 DQ13

A17

A10 DQ14

DQ12

DQ10

DQ15A–1

VCC

DQ4

DQ5

DQ7

VPP/WP

A21

M29W640FT

M29W640FB

24 25

DQ8

A20

A19

A18

DQ1

DQ11

A12

A13

A16

A11

BYTE

A15

A14 VSS

VSS

AI11251

Sum mary des cript ion M29W640FT, M29 W640FB

10/71

Figure 3. TFBGA48 connections (top view through package)

654321

VSS

A15

A14

A12

A13

DQ3

DQ11

DQ10

A18

VPP

DQ1

DQ9

DQ8

DQ0

A17

DQ2

DQ6

DQ13

DQ14

A10

DQ4

VCC

DQ12

DQ5

A19

A21

A11

DQ7

VSS

A5 A20

A16

BYTE

DQ15

A–1

AI11554

M29 W640FT, M29 W640F B Sig n al descript ions

11/71

2 Signal descriptions

See Figure 1: Logic diagr am, and Tabl e 2: Si gnal names , for a brief overview of the signals

connected to this device.

2.1 Address Inputs (A0-A21)

The Address Inputs select the cells in the memory array to access during Bus Read

operations. During Bus Write operations they control the commands sent to the Command

Interface of the Program/Erase Controller.

2.2 Data Inputs/Outputs (DQ0-DQ7)

The Data I/O outputs the data stored at the selected address during a Bus Read operation.

During Bus Write operations they represent the commands sent to the Command Interface

of the Program/Erase Controller.

2.3 Data Inputs/Outputs (DQ8-DQ14)

The Data I/O outputs the data stored at the selected address during a Bus Read operation

when BYTE is High, VIH. When BYTE is Low, VIL, these pins are not used and are high

impedance. During Bus Write operations the Command Register does not use these bits.

When reading the Status Register these bits should be ignored.

2.4 Data Input/Output or Address Input (DQ15A–1)

When BYTE is High, VIH, this pin behaves as a Data Input/Output pin (as DQ8-DQ14).

When BYTE is Low, VIL, this pin behaves as an address pin; DQ15A–1 Low will select the

LSB of the addressed Word, DQ15A–1 High will select the MSB. Throughout the text

consider references to the Data Input/Output to include this pin when BYTE is High and

references to the Address Inputs to include this pin when BYTE is Low except when stated

explicitly otherwise.

2.5 Chip Enable (E)

The Chip Enable, E, activates the memory, allowing Bus Read and Bus Write operations to

be performed. When Chip Enable is High, VIH, all other pins are ignored.

2.6 Output Enable (G)

The Output Enable, G, controls the Bus Read operation of the memory.

Signal descriptions M29W640FT, M29W640FB

12/71

2.7 Write Enable (W)

The Write Enable, W, controls the Bus Write operation of the memory’s Command Interface.

2.8 VPP/Write Protect (VPP/WP)

The VPP/Write Protect pin provides two functions. The VPP function allows the memory to

use an external high voltage power supply to reduce the time required for Unlock Bypass

Program operations. The Write Protect function provides a hardware method of protecting

the two outermost boot blocks. The VPP/Write Protect pin must not be left floating or

unconnected.

When VPP/Write Protect is Low, VIL, the memory protects the two outermost boot blocks;

Program and Erase operations in this block are ignored while VPP/Write Protect is Low,

even when RP is at VID.

When VPP/Write Protect is High, VIH, the memory reverts to the previous protection status

of the two outermost boot blocks. Program and Erase operations can now modify the data in

the two outermost boot blocks unless the block is protected using Block Protection.

Applying VPPH to the VPP/WP pin will temporarily unprotect any block previously protected

(including the two outermost parameter blocks) using a High Voltage Block Protection

technique (In-System or Programmer technique). See Table 3: Hardware protection for

details.

When VPP/Write Protect is raised to VPP the memory automatically enters the Unlock

Bypass mode. When VPP/Write Protect returns to VIH or VIL normal operation resumes.

During Unlock Bypass Program operations the memory draws IPP from the pin to supply the

programming circuits. See the description of the Unlock Bypass command in the Command

Interface section. The transitions from VIH to VPP and from VPP to VIH must be slower than

tVHVPP

, see Fi gure 13: A ccel erated Program T i m i ng wavef o rms.

Never raise VPP/Write Protect to VPP from any mode except Read mode, otherwise the

memory may be left in an indeterminate state.

A 0.1μF capacitor should be connected between the VPP/Write Protect pin and the VSS

Ground pin to decouple the current surges from the power supply. The PCB track widths

must be sufficient to carry the currents required during Unlock Bypass Program, IPP

Table 3. Hardware protec ti on

VPP/WP RP Function

VIL

VIH 2 outermost parameter blocks protected from Program/Erase operations

VID All blocks temporarily unprotected except the 2 outermost blocks

VIH or VID VID All blocks temporarily unprotected

VPPH VIH or VID All blocks temporarily unprotected

M29 W640FT, M29 W640F B Sig n al descript ions

13/71

2.9 Reset/Block Temporary Unprotect (RP)

The Reset/Block Temporary Unprotect pin can be used to apply a Hardware Reset to the

memory or to temporarily unprotect all Blocks that have been protected.

Note that if VPP/WP is at VIL, then the two outermost boot blocks will remain protected even

if RP is at VID.

A Hardware Reset is achieved by holding Reset/Block Temporary Unprotect Low, VIL, for at

least tPLPX. After Reset/Block Temporary Unprotect goes High, VIH, the memory will be

ready for Bus Read and Bus Write operations after tPHEL or tRHEL, whichever occurs last.

See the Ready/Busy Output section, Tab l e 17: R eset/Bl ock Temporary Unprotect AC

characteristics and Figure 12: Reset/Block Temporary Unprotect AC waveforms, for more

details.

Holding RP at VID will temporarily unprotect the protected Blocks in the memory. Program

and Erase operations on all blocks will be possible. The transition from VIH to VID must be

slower than tPHPHH.

2.10 Ready/Busy Output (RB)

The Ready/Busy pin is an open-drain output that can be used to identify when the device is

performing a Program or Erase operation. During Program or Erase operations Ready/Busy

is Low, VOL. Ready/Busy is high-impedance during Read mode, Auto Select mode and

Erase Suspend mode.

After a Hardware Reset, Bus Read and Bus Write operations cannot begin until Ready/Busy

becomes high-impedance. See Table 17: Re set/B l ock Temporary Unpr otect AC

characteristics and Figure 12: Reset/Block Temporary Unprotect AC waveforms, for more

details.

The use of an open-drain output allows the Ready/Busy pins from several memories to be

connected to a single pull-up resistor. A Low will then indicate that one, or more, of the

memories is busy.

2.11 Byte/Word Organization Select (BYTE)

The Byte/Word Organization Select pin is used to switch between the x8 and x16 Bus

modes of the memory. When Byte/Word Organization Select is Low, VIL, the memory is in

x8 mode, when it is High, VIH, the memory is in x16 mode.

Signal descriptions M29W640FT, M29W640FB

14/71

2.12 VCC Supply Volt age (2.7V to 3.6V)

VCC provides the power supply for all operations (Read, Program and Erase).

The Command Interface is disabled when the VCC Supply voltage is less than the Lockout

Voltage, VLKO. This prevents Bus Write operations from accidentally damaging the data

during power up, power down and power surges. If the Program/Erase Controller is

programming or erasing during this time then the operation aborts and the memory contents

being altered will be invalid.

A 0.1μF capacitor should be connected between the VCC Supply voltage pin and the VSS

Ground pin to decouple the current surges from the power supply. The PCB track widths

must be sufficient to carry the currents required during Program and Erase operations, ICC3.

2.13 VSS Ground

VSS is the reference for all voltage measurements. The device features two VSS pins which

must be both connected to the system ground.

M29 W640FT, M29 W640FB Bus o p erat ions

15/71

3 Bus operations

There are five standard bus operations that control the device. These are Bus Read, Bus

Write, Output Disable, Standby and Automatic Standby. See Table 4: Bus operations, BYTE

= VIL and Table 5: Bus operations, BYTE = VIH, for a summary. Typically glitches of less

than 5ns on Chip Enable or Write Enable are ignored by the memory and do not affect bus

operations.

3.1 Bus Read

Bus Read operations read from the memory cells, or specific registers in the Command

Interface. A valid Bus Read operation involves setting the desired address on the Address

Inputs, applying a Low signal, VIL, to Chip Enable and Output Enable and keeping Write

Enable High, VIH. The Data Inputs/Outputs will output the value, see Fi gure 8: Read Mode

AC wavefor ms , and Table 14: Read A C characteristi cs, for details of when the output

becomes valid.

3.2 Bus Write

Bus Write operations write to the Command Interface. To speed up the read operation the

memory array can be read in Page mode where data is internally read and stored in a page

buffer. The Page has a size of 4 Words and is addressed by the address inputs A0-A1.

A valid Bus Write operation begins by setting the desired address on the Address Inputs.

The Address Inputs are latched by the Command Interface on the falling edge of Chip

Enable or Write Enable, whichever occurs last. The Data Inputs/Outputs are latched by the

Command Interface on the rising edge of Chip Enable or Write Enable, whichever occurs

first. Output Enable must remain High, VIH, during the whole Bus Write operation. See

Fi gu re 10: Writ e AC w avefor m s, Wr i t e En able controll ed, Figure 11: Write AC waveforms,

Chip Enable controlled , and Table 15: Write AC cha racter i s tics , Write Enab l e cont rolle d and

Table 16: Write AC characteristics, Chip Enable controlled, for details of the timing

requirements.

3.3 Output Disable

The Data Inputs/Outputs are in the high impedance state when Output Enable is High, VIH.

3.4 Standby

When Chip Enable is High, VIH, the memory enters Standby mode and the Data

Inputs/Outputs pins are placed in the high-impedance state. To reduce the Supply Current to

the Standby Supply Current, ICC2, Chip Enable should be held within VCC ± 0.2V. For the

Standby current level see Table 13: DC characteristics.

During program or erase operations the memory will continue to use the Program/Erase

Supply Current, ICC3, for Program or Erase operations until the operation completes.

Bus operations M29W640FT, M29W6 40FB

16/71

3.5 Automatic Standby

If CMOS levels (VCC ± 0.2V) are used to drive the bus and the bus is inactive for 300ns or

more the memory enters Automatic Standby where the internal Supply Current is reduced to

the Standby Supply Current, ICC2. The Data Inputs/Outputs will still output data if a Bus

Read operation is in progress.

3.6 Special Bus operations

Additional bus operations can be performed to read the Electronic Signature and also to

apply and remove Block Protection. These bus operations are intended for use by

programming equipment and are not usually used in applications. They require VID to be

applied to some pins.

3.6.1 Electronic Signature

The memory has two codes, the manufacturer code and the device code, that can be read

to identify the memory. These codes can be read by applying the signals listed in Table 4:

Bu s opera tions, BYTE = VIL and Table 5: Bus operations, BYTE = VIH.

3.6.2 Block Protect and Chip Unprotect

Groups of blocks can be protected against accidental Program or Erase. The Protection

Groups are shown in Appendi x A : Block addresses Table 21 and Table 22. The whole chip

can be unprotected to allow the data inside the blocks to be changed.

The VPP/Write Protect pin can be used to protect the two outermost boot blocks. When

VPP/Write Protect is at VIL the two outermost boot blocks are protected and remain

protected regardless of the Block Protection Status or the Reset/Block Temporary

Unprotect pin status.

Block Protect and Chip Unprotect operations are described in Appendix D: B l ock protect i on.

M29 W640FT, M29 W640FB Bus o p erat ions

17/71

Table 4. Bus operations, BYTE = VIL (1)

Operation E G W Address Inputs

DQ15A–1, A0-A21

Dat a Inputs/Outputs

DQ14-DQ8 DQ7-DQ0

Bus Read VIL VIL VIH Cell address Hi-Z Data Output

Bus Write VIL VIH VIL Command address Hi-Z Data Input

Output Disable X VIH VIH X Hi-Z Hi-Z

Standby VIH X X X Hi-Z Hi-Z

Read Manufacturer Code VIL VIL VIH

A0-A3 = VIL, A6 = VIL,

A9 = VID, Others VIL or VIH

Hi-Z 20h

Read Device Code VIL VIL VIH

A0 = VIH, A1-A3= VIL,

A6 = VIL, A9 = VID,

Others VIL or VIH

Hi-Z EDh (M29W640FT)

FDh (M29W640FB)

Read Extended Memory

Block Verify Code VIL VIL VIH

A0 -A1 = VIH, A2-A3= VIL,

A6 = VIL, A9 = VID,

Others VIL or VIH

Hi-Z 80h (Factory Locked)

00h (Customer Lockable)

Read Block Protection

Status VIL VIL VIH

A0,A2,A3, A6= VIL,

A1= VIH, A9 = VID,

A12-A21 = Block address,

Others VIL or VIH

Hi-Z 01h (protected)

00h (unprotected)

1. X = VIL or VIH.

Table 5. Bus operations, BYTE = VIH(1)

Operation E G W Address Inputs

A0-A21 Data Input s/Out puts

DQ15A–1, DQ14-DQ0

Bus Read VIL VIL VIH Cell address Data Output

Bus Write VIL VIH VIL Command address Data Input

Output Disable X VIH VIH X Hi-Z

Standby VIH X X X Hi-Z

Read Manufacturer Code VIL VIL VIH

A0-A3 = VIL, A6 = VIL,

A9 = VID, Others VIL or VIH

0020h

Read Device Code VIL VIL VIH

A0 = VIH, A1-A3= VIL, A6 = VIL,

A9 = VID, Others VIL or VIH

22EDh (M29W640FT)

22FDh (M29W640FB)

Read Extended Memory

Block Verify Code VIL VIL VIH

A0 -A1 = VIH, A2-A3= VIL,

A6 = VIL, A9 = VID,

Others VIL or VIH

80h (Factory Locked)

00h (Customer Lockable)

Read Block Protection

Status VIL VIL VIH

A0,A2,A3, A6= VIL, A1 = VIH, A9 = VID,

A12-A21 = Block address,

Others VIL or VIH

0001h (protected)

0000h (unprotected)

1. X = VIL or VIH.

Command interface M29W640FT, M29W640FB

18/71

4 Command interface

All Bus Write operations to the memory are interpreted by the Command Interface.

Commands consist of one or more sequential Bus Write operations. Failure to observe a

valid sequence of Bus Write operations will result in the memory returning to Read mode.

The long command sequences are imposed to maximize data security.

The address used for the commands changes depending on whether the memory is in 16-

bit or 8-bit mode. See either Table 6, or Table 7, depending on the configuration that is being

used, for a summary of the commands.

4.1 Standard commands

4.1.1 Read/Reset command

The Read/Reset command returns the memory to its Read mode. It also resets the errors in

the Status Register. Either one or three Bus Write operations can be used to issue the

Read/Reset command.

The Read/Reset command can be issued, between Bus Write cycles before the start of a

program or erase operation, to return the device to read mode. If the Read/Reset command

is issued during the timeout of a Block Erase operation then the memory will take up to 10μs

to abort. During the abort period no valid data can be read from the memory. The

Read/Reset command will not abort an Erase operation when issued while in Erase

Suspend.

4.1.2 Auto Select command

The Auto Select command is used to read the Manufacturer Code, the Device Code, the

Block Protection Status and the Extended Memory Block Verify Code. Three consecutive

Bus Write operations are required to issue the Auto Select command. Once the Auto Select

command is issued the memory remains in Auto Select mode until a Read/Reset command

is issued. Read CFI Query and Read/Reset commands are accepted in Auto Select mode,

all other commands are ignored.

In Auto Select mode, the Manufacturer Code and the Device Code can be read by using a

Bus Read operation with addresses and control signals set as shown in Table 4: Bus

operati ons, BYT E = VIL and Table 5: Bus operations, BYTE = VIH, except for A9 that is

‘Don’t Care’.

The Block Protection Status of each block can be read using a Bus Read operation with

addresses and control signals set as shown in Table 4: Bus operations, BYTE = VIL and

Table 5: Bus operations , BYTE = VIH, except for A9 that is ‘Don’t Care’. If the addressed

block is protected then 01h is output on Data Inputs/Outputs DQ0-DQ7, otherwise 00h is

output (in 8-bit mode).

The protection status of the Extended Memory block, or Extended Memory Block Verify

code, can be read using a Bus Read operation with addresses and control signals set as

shown in Table 4: Bus operations, BYTE = VIL and Table 5: Bus operations, BYTE = VIH,

except for A9 that is ‘Don’t Care’. If the Extended Block is "Factory Locked" then 80h is

output on Data Input/Outputs DQ0-DQ7, otherwise 00h is output (8-bit mode).

M29 W640FT, M29 W640F B Comm and interface

19/71

4.1.3 Read CFI Query comma nd

The Read CFI Query Command is used to read data from the Common Flash Interface

(CFI) Memory Area. This command is valid when the device is in the Read Array mode, or

when the device is in Autoselected mode.

One Bus Write cycle is required to issue the Read CFI Query Command. Once the

command is issued subsequent Bus Read operations read from the Common Flash

Interface Memory Area.

The Read/Reset command must be issued to return the device to the previous mode (the

Read Array mode or Autoselected mode). A second Read/Reset command would be

needed if the device is to be put in the Read Array mode from Autoselected mode.

See Appe ndi x B: Com mon Fl ash In te rf ace ( CF I), Tables 23, 24, 25, 26, 27 and 28 for details

on the information contained in the Common Flash Interface (CFI) memory area.

4.1.4 Chip Erase command

The Chip Erase command can be used to erase the entire chip. Six Bus Write operations

are required to issue the Chip Erase Command and start the Program/Erase Controller.

If any blocks are protected then these are ignored and all the other blocks are erased. If all

of the blocks are protected the Chip Erase operation appears to start but will terminate

within about 100μs, leaving the data unchanged. No error condition is given when protected

blocks are ignored.

During the erase operation the memory will ignore all commands, including the Erase

Suspend command. It is not possible to issue any command to abort the operation. Typical

chip erase times are given in Tab le 8: Pr ogram, E rase ti m es and Pr ogram, Erase

Endurance cycles. All Bus Read operations during the Chip Erase operation will output the

Status Register on the Data Inputs/Outputs. See the section on the Status Register for more

details.

After the Chip Erase operation has completed the memory will return to the Read Mode,

unless an error has occurred. When an error occurs the memory will continue to output the

Status Register. A Read/Reset command must be issued to reset the error condition and

return to Read Mode.

The Chip Erase Command sets all of the bits in unprotected blocks of the memory to ’1’. All

previous data is lost.

Command interface M29W640FT, M29W640FB

20/71

4.1.5 Block Erase command

The Block Erase command can be used to erase a list of one or more blocks. Six Bus Write

operations are required to select the first block in the list. Each additional block in the list can

be selected by repeating the sixth Bus Write operation using the address of the additional

block. The Block Erase operation starts the Program/Erase Controller about 50μs after the

last Bus Write operation. Once the Program/Erase Controller starts it is not possible to

select any more blocks. Each additional block must therefore be selected within 50μs of the

last block. The 50μs timer restarts when an additional block is selected. The Status Register

can be read after the sixth Bus Write operation. See the Status Register section for details

on how to identify if the Program/Erase Controller has started the Block Erase operation.

If any selected blocks are protected then these are ignored and all the other selected blocks

are erased. If all of the selected blocks are protected the Block Erase operation appears to

start but will terminate within about 100μs, leaving the data unchanged. No error condition is

given when protected blocks are ignored.

During the Block Erase operation the memory will ignore all commands except the Erase

Suspend command. Typical block erase times are given in Ta ble 8 : Pro gr am, Erase tim es

and P rogr am , Eras e Enduranc e cycles. All Bus Read operations during the Block Erase

operation will output the Status Register on the Data Inputs/Outputs. See the section on the

Status Register for more details.

After the Block Erase operation has completed the memory will return to the Read Mode,

unless an error has occurred. When an error occurs the memory will continue to output the

Status Register. A Read/Reset command must be issued to reset the error condition and

return to Read mode.

The Block Erase Command sets all of the bits in the unprotected selected blocks to ’1’. All

previous data in the selected blocks is lost.

4.1.6 Erase Suspend command

The Erase Suspend Command may be used to temporarily suspend a Block Erase

operation and return the memory to Read mode. The command requires one Bus Write

operation.

The Program/Erase Controller will suspend within the Erase Suspend Latency time of the

Erase Suspend Command being issued. Once the Program/Erase Controller has stopped

the memory will be set to Read mode and the Erase will be suspended. If the Erase

Suspend command is issued during the period when the memory is waiting for an additional

block (before the Program/Erase Controller starts) then the Erase is suspended immediately

and will start immediately when the Erase Resume Command is issued. It is not possible to

select any further blocks to erase after the Erase Resume.

During Erase Suspend it is possible to Read and Program cells in blocks that are not being

erased; both Read and Program operations behave as normal on these blocks. If any

attempt is made to program in a protected block or in the suspended block then the Program

command is ignored and the data remains unchanged. The Status Register is not read and

no error condition is given. Reading from blocks that are being erased will output the Status

It is also possible to issue the Auto Select, Read CFI Query and Unlock Bypass commands

during an Erase Suspend. The Read/Reset command must be issued to return the device to

Read Array mode before the Resume command will be accepted.

M29 W640FT, M29 W640F B Comm and interface

21/71

4.1.7 Erase Resume command

The Erase Resume command must be used to restart the Program/Erase Controller after an

Erase Suspend. The device must be in Read Array mode before the Resume command will

be accepted. An erase can be suspended and resumed more than once.

4.1.8 Program Suspend command

The Program Suspend command allows the system to interrupt a program operation so that

data can be read from any block. When the Program Suspend command is issued during a

program operation, the device suspends the program operation within the Program

Suspend Latency time (see Tab l e 8: Prog ram, Er ase time s an d P rogram , E r ase Enduranc e

cycles for value) and updates the Status Register bits.

After the program operation has been suspended, the system can read array data from any

address. However, data read from Program-Suspended addresses is not valid.

The Program Suspend command may also be issued during a program operation while an

erase is suspended. In this case, data may be read from any addresses not in Erase

Suspend or Program Suspend. If a read is needed from the Extended Block area (One-time

Program area), the user must use the proper command sequences to enter and exit this

region.

The system may also issue the Auto Select command sequence when the device is in the

Program Suspend mode. The system can read as many Auto Select codes as required.

When the device exits the Auto Select mode, the device reverts to the Program Suspend

mode, and is ready for another valid operation. See Auto Select command sequence for

more information.

4.1.9 Program Resume command

After the Program Resume command is issued, the device reverts to programming. The

controller can determine the status of the program operation using the DQ7 or DQ6 status

bits, just as in the standard program operation. See Write Operation Status for more

information.

The system must write the Program Resume command, to exit the Program Suspend mode

and to continue the programming operation.

Further issuing of the Resume command is ignored. Another Program Suspend command

can be written after the device has resumed programming.

Command interface M29W640FT, M29W640FB

22/71

4.1.10 Program command

The Program command can be used to program a value to one address in the memory

array at a time. The command requires four Bus Write operations, the final write operation

latches the address and data, and starts the Program/Erase Controller.

Programming can be suspended and then resumed by issuing a Program Suspend

command and a Program Resume command, respectively (see Section 4.1.8: Program

Suspend command and Section 4.1.9: Progra m Resume command).

If the address falls in a protected block then the Program command is ignored, the data

remains unchanged. The Status Register is never read and no error condition is given.

During the program operation the memory will ignore all commands. It is not possible to

issue any command to abort or pause the operation. Typical program times are given in

Table 8: Program, E rase ti m es and Program, Erase En duran ce cycles. Bus Read

operations during the program operation will output the Status Register on the Data

Inputs/Outputs. See the section on the Status Register for more details.

After the program operation has completed the memory will return to the Read mode, unless

an error has occurred. When an error occurs the memory will continue to output the Status

Read mode.

Note that the Program command cannot change a bit set at ’0’ back to ’1’. One of the Erase

Commands must be used to set all the bits in a block or in the whole memory from ’0’ to ’1’.

M29 W640FT, M29 W640F B Comm and interface

23/71

4.2 Fast Program commands

There are four Fast Program commands available to improve the programming throughput,

by writing several adjacent words or bytes in parallel. The Double, Quadruple and Octuple

Byte Program commands are available for x8 operations, while the Double Quadruple Word

Program command are available for x16 operations.

Fast Program commands can be suspended and then resumed by issuing a Program

Suspend command and a Program Resume command, respectively (see Section 4.1.8:

Pr ogram S uspe nd c omma nd and Section 4.1.9: Program Resume command).

To perform some of the Fast Program commands, VPPH must be applied to VPP/WP pin.

Care must be taken because applying a VPPH to the VPP/WP pin will temporarily unprotect

any protected block.

4.2.1 Double Byte Program command

The Double Byte Program command is used to write a page of two adjacent Bytes in

parallel. The two bytes must differ only in DQ15A-1. Three bus write cycles are necessary to

issue the Double Byte Program command.

1. The first bus cycle sets up the Double Byte Program Command.

2. The second bus cycle latches the Address and the Data of the first byte to be written.

3. The third bus cycle latches the Address and the Data of the second byte to be written.

4.2.2 Quadruple Byte Program command(1)

The Quadruple Byte Program command is used to write a page of four adjacent Bytes in

parallel. The four bytes must differ only for addresses A0, DQ15A-1. Five bus write cycles

are necessary to issue the Quadruple Byte Program command.

1. The first bus cycle sets up the Quadruple Byte Program Command.

2. The second bus cycle latches the Address and the Data of the first byte to be written.

3. The third bus cycle latches the Address and the Data of the second byte to be written.

4. The fourth bus cycle latches the Address and the Data of the third byte to be written.

5. The fifth bus cycle latches the Address and the Data of the fourth byte to be written and

starts the Program/Erase Controller.

1. For devices with process technology code “H” in the marking, the Quadruple Byte Program command can be performed

without applying VPPH on the VPP/WP pin. For other devices, applying VPPH on the VPP/WP pin is mandatory.

Command interface M29W640FT, M29W640FB

24/71

4.2.3 Octuple Byte Program command

This is used to write eight adjacent Bytes, in x8 mode, simultaneously. The addresses of the

eight Bytes must differ only in A1, A0 and DQ15A-1.

Nine bus write cycles are necessary to issue the command:

1. The first bus cycle sets up the command.

2. The second bus cycle latches the Address and the Data of the first Byte to be written.

3. The third bus cycle latches the Address and the Data of the second Byte to be written.

4. The fourth bus cycle latches the Address and the Data of the third Byte to be written.

5. The fifth bus cycle latches the Address and the Data of the fourth Byte to be written.

6. The sixth bus cycle latches the Address and the Data of the fifth Byte to be written.

7. The seventh bus cycle latches the Address and the Data of the sixth Byte to be written.

8. The eighth bus cycle latches the Address and the Data of the seventh Byte to be

written.

9. The ninth bus cycle latches the Address and the Data of the eighth Byte to be written

and starts the Program/Erase Controller.

To perform the Quadruple Byte Program command, it is necessary to apply VPPH to the

VPP/WP pin.

4.2.4 Double Word Program command (2)

The Double Word Program command is used to write a page of two adjacent Words in

parallel. The two Words must differ only for the address A0.

Three bus write cycles are necessary to issue the Double Word Program command.

■The first bus cycle sets up the Quadruple Word Program Command.

■The second bus cycle latches the Address and the Data of the first Word to be written.

■The third bus cycle latches the Address and the Data of the second Word to be written

and starts the Program/Erase Controller.

After the program operation has completed the memory will return to the Read mode, unless

an error has occurred. When an error occurs Bus Read operations will continue to output

the Status Register. A Read/Reset command must be issued to reset the error condition and

return to Read mode.

Note that the Fast Program commands cannot change a bit set at ’0’ back to ’1’. One of the

Erase Commands must be used to set all the bits in a block or in the whole memory from ’0’

to ’1’.

Typical Program times are given in Ta bl e 8: P rogr am , Eras e times and Pro gram, Eras e

Endurance cycles.

2. For devices with process technology code “H” in the marking, the Double Word Program command can be performed

without applying VPPH on the VPP/WP pin. For other devices, applying VPPH on the VPP/WP pin is mandatory.

M29 W640FT, M29 W640F B Comm and interface

25/71

4.2.5 Quadru ple Word Program command

This is used to write a page of four adjacent Words (or 8 adjacent Bytes), in x16 mode,

simultaneously. The addresses of the four Words must differ only in A1 and A0.

Five bus write cycles are necessary to issue the command:

■The first bus cycle sets up the command.

■The second bus cycle latches the Address and the Data of the first Word to be written.

■The third bus cycle latches the Address and the Data of the second Word to be written.

■The fourth bus cycle latches the Address and the Data of the third Word to be written.

■The fifth bus cycle latches the Address and the Data of the fourth Word to be written

and starts the Program/Erase Controller.

To perform the Quadruple Byte Program command, it is necessary to apply VPPH to the

VPP/WP pin.

4.2.6 Unlock Bypass command

The Unlock Bypass command is used in conjunction with the Unlock Bypass Program

command to program the memory faster than with the standard program commands. When

the cycle time to the device is long, considerable time saving can be made by using these

commands. Three Bus Write operations are required to issue the Unlock Bypass command.

Once the Unlock Bypass command has been issued the memory will only accept the Unlock

Bypass Program command and the Unlock Bypass Reset command. The memory can be

read as if in Read mode.

When VPP is applied to the VPP/Write Protect pin the memory automatically enters the

Unlock Bypass mode and the Unlock Bypass Program command can be issued

immediately.

4.2.7 Unlock Bypass Program command

The Unlock Bypass command is used in conjunction with the Unlock Bypass Program

command to program the memory. When the cycle time to the device is long, considerable

time saving can be made by using these commands. Three Bus Write operations are

required to issue the Unlock Bypass command.

Once the Unlock Bypass command has been issued the memory will only accept the Unlock

Bypass Program command and the Unlock Bypass Reset command. The memory can be

read as if in Read mode.

The memory offers accelerated program operations through the VPP/Write Protect pin.

When the system asserts VPP on the VPP/Write Protect pin, the memory automatically

enters the Unlock Bypass mode. The system may then write the two-cycle Unlock Bypass

program command sequence. The memory uses the higher voltage on the VPP/Write

Protect pin, to accelerate the Unlock Bypass Program operation.

Never raise VPP/Write Protect to VPP from any mode except Read mode, otherwise the

memory may be left in an indeterminate state.

Command interface M29W640FT, M29W640FB

26/71

4.2.8 Unlock Bypass Reset command

The Unlock Bypass Reset command can be used to return to Read/Reset mode from

Unlock Bypass Mode. Two Bus Write operations are required to issue the Unlock Bypass

Reset command. Read/Reset command does not exit from Unlock Bypass Mode.

4.3 Block Protection commands

4.3.1 Enter Extended Block command

The device has an extra 256 Byte block (Extended Block) that can only be accessed using

the Enter Extended Block command. Three Bus write cycles are required to issue the

Extended Block command. Once the command has been issued the device enters

Extended Block mode where all Bus Read or Write operations to the Boot Block addresses

access the Extended Block. The Extended Block (with the same address as the Boot

Blocks) cannot be erased, and can be treated as one-time programmable (OTP) memory. In

Extended Block mode the Boot Blocks are not accessible.

To exit from the Extended Block mode the Exit Extended Block command must be issued.

The Extended Block can be protected, however once protected the protection cannot be

undone.

4.3.2 Exit Extended Block command

The Exit Extended Block command is used to exit from the Extended Block mode and return

the device to Read mode. Four Bus Write operations are required to issue the command.

4.3.3 Block Protect and Chip Unprotect commands

Groups of blocks can be protected against accidental Program or Erase. The Protection

Groups are shown in Appendi x A : Block addresses , Table 21: Top Boot Block addresses,

M29W640FT and Table 22: B ottom B oot Block addresses, M29W6 40FB. The whole chip

can be unprotected to allow the data inside the blocks to be changed.

Block Protect and Chip Unprotect operations are described in Appendix D: B l ock protect i on.

M29 W640FT, M29 W640F B Comm and interface

27/71

Ta ble 6. Commands, 16-bit mode , BYTE = VIH(1)

Command

Length

Bus Write operations

1st 2nd 3rd 4th 5th 6th

Addr Data Addr Data Addr Data Addr Data Addr Data Addr Data

Read/Reset 1X F0

3 555 AA 2AA 55 X F0

Auto Select 3 555 AA 2AA 55 555 90

Program 4 555 AA 2AA 55 555 A0 PA PD

Double Word Program 3 555 50 PA0 PD0 PA1 PD1

Quadruple Word

Program 5 555 56 PA0 PD0 PA1 PD1 PA2 PD2 PA3 PD3

Unlock Bypass 3 555 AA 2AA 55 555 20

Unlock Bypass

Program 2X A0PAPD

Unlock Bypass Reset 2 X 90 X 00

Chip Erase 6 555 AA 2AA 55 555 80 555 AA 2AA 55 555 10

Block Erase 6+ 555 AA 2AA 55 555 80 555 AA 2AA 55 BA 30

Program/Erase

Suspend 1X B0

Program/Erase

Resume 1X 30

Read CFI Query 1 55 98

Enter Extended Block 3 555 AA 2AA 55 555 88

Exit Extended Block 4 555 AA 2AA 55 555 90 X 00

1. X Don’t Care, PA Program Address, PD Program Data, BA Any address in the Block. All values in the table are in

hexadecimal. The Command interface only uses A–1, A0-A10 and DQ0-DQ7 to verify the commands; A11-A20, DQ8-

DQ14 and DQ15 are Don’t Care. DQ15A–1 is A–1 when BYTE is VIL or DQ15 when BYTE is VIH.

Command interface M29W640FT, M29W640FB

28/71

Ta ble 7. Commands, 8-bit mode, BYTE = VIL

Command

Length

Bus Write operations(1)

1st 2nd 3rd 4th 5th 6th 7th 8th 9th

Add Data Add Data Add Data Add Data Add Data Add Data Add Data Add Data Add Data

Read/Reset 1XF0

3 AAA AA 555 55 X F0

Auto Select 3 AAA AA 555 55 AAA 90

Program 4 AAA AA 555 55 AAA A0 PA PD

Double Byte

Program 3 AAA 50 PA0 PD0 PA1 PD1

Quadruple

Byte Program 5 AAA 56 PA0 PD0 PA1 PD1 PA2 PD2 PA3 PD3

Octuple Byte

Program 9 AAA 8B PA0 PD0 PA1 PD1 PA2 PD2 PA3 PD3 PA4 PD4 PA5 PD5 PA6 PD6 PA7 PD7

Unlock Bypass 3 AAA AA 555 55 AAA 20

Unlock Bypass

Program 2 X A0 PA PD

Unlock Bypass

Reset 2X 90X00

Chip Erase 6 AAA AA 555 55 AAA 80 AAA AA 555 55 AAA 10

Block Erase 6+ AAA AA 555 55 AAA 80 AAA AA 555 55 BA 30

Program/Erase

Suspend 1XB0

Program/Erase

Resume 1X30

Read CFI

Query 1AA98

Enter

Extended

Block

3 AAA AA 555 55 AAA 88

Exit Extended

Block 4 AAA AA 555 55 AAA 90 X 00

1. X Don’t Care, PA Program Address, PD Program Data, BA Any address in the Block. All values in the table are in

hexadecimal. The Command Interface only uses A–1, A0-A10 and DQ0-DQ7 to verify the commands; A11-A20, DQ8-

DQ14 and DQ15 are Don’t Care. DQ15A–1 is A–1 when BYTE is VIL or DQ15 when BYTE is VIH.

M29 W640FT, M29 W640F B Comm and interface

29/71

Ta ble 8. Program, Erase times and Progra m , Erase Endurance cycles

Parameter Min Typ(1)(2) Max(2) Unit

Chip Erase 80 400(3) s

Block Erase (64 KBytes) 0.8 6(4) s

Erase Suspend Latency time 50(4) μs

Program (Byte or Word) 10 200(3) μs

Double Byte 10 200(3) μs

Double Word /Quadruple Byte Program 10 200(3) μs

Quadruple Word / Octuple Byte Program 10 200(3) μs

Chip Program (Byte by Byte) 80 400(3) s

Chip Program (Word by Word) 40 200(3) s

Chip Program (Double Word/Quadruple Byte Program) 20 100(3) s

Chip Program (Quadruple Word/Octuple Byte Program) 10 50(3) s

Program Suspend Latency time 4 μs

Program/Erase Cycles (per Block) 100,000 cycles

Data Retention 20 years

1. Typical values measured at room temperature and nominal voltages.

2. Sampled, but not 100% tested.

3. Maximum value measured at worst case conditions for both temperature and VCC after 100,00 program/erase cycles.

4. Maximum value measured at worst case conditions for both temperature and VCC.

Stat u s Register M29W 640FT, M29 W640FB

30/71

5 Status Register

Bus Read operations from any address always read the Status Register during Program

and Erase operations. It is also read during Erase Suspend when an address within a block

being erased is accessed.

The bits in the Status Register are summarized in Table 9: Stat us Regi ster Bits.

5.1 Data Polling Bit (DQ7)

The Data Polling Bit can be used to identify whether the Program/Erase Controller has

successfully completed its operation or if it has responded to an Erase Suspend. The Data

Polling Bit is output on DQ7 when the Status Register is read.

During Program operations the Data Polling Bit outputs the complement of the bit being

programmed to DQ7. After successful completion of the Program operation the memory

returns to Read mode and Bus Read operations from the address just programmed output

DQ7, not its complement.

During Erase operations the Data Polling Bit outputs ’0’, the complement of the erased state

of DQ7. After successful completion of the Erase operation the memory returns to Read

Mode.

In Erase Suspend mode the Data Polling Bit will output a ’1’ during a Bus Read operation

within a block being erased. The Data Polling Bit will change from a ’0’ to a ’1’ when the

Program/Erase Controller has suspended the Erase operation.

Figure 4: Data Po l l i ng flow chart, gives an example of how to use the Data Polling Bit. A

Valid Address is the address being programmed or an address within the block being

erased.

5.2 Toggle Bit (DQ6)

The Toggle Bit can be used to identify whether the Program/Erase Controller has

successfully completed its operation or if it has responded to an Erase Suspend. The Toggle

Bit is output on DQ6 when the Status Register is read.

During Program and Erase operations the Toggle Bit changes from ’0’ to ’1’ to ’0’, etc., with

successive Bus Read operations at any address. After successful completion of the

operation the memory returns to Read mode.

During Erase Suspend mode the Toggle Bit will output when addressing a cell within a block

being erased. The Toggle Bit will stop toggling when the Program/Erase Controller has

suspended the Erase operation.

Figure 5: Data Toggle flowchart, gives an example of how to use the Data Toggle Bit.

M29 W640FT, M29W6 40FB Stat u s Regi ster

31/71

5.3 Error Bit (DQ5)

The Error Bit can be used to identify errors detected by the Program/Erase Controller. The

Error Bit is set to ’1’ when a Program, Block Erase or Chip Erase operation fails to write the

correct data to the memory. If the Error Bit is set a Read/Reset command must be issued

before other commands are issued. The Error bit is output on DQ5 when the Status Register

is read.

Note that the Program command cannot change a bit set to ’0’ back to ’1’ and attempting to

do so will set DQ5 to ‘1’. A Bus Read operation to that address will show the bit is still ‘0’.

One of the Erase commands must be used to set all the bits in a block or in the whole

memory from ’0’ to ’1’.

5.4 Erase Timer Bit (DQ3)

The Erase Timer Bit can be used to identify the start of Program/Erase Controller operation

during a Block Erase command. Once the Program/Erase Controller starts erasing the

Erase Timer Bit is set to ’1’. Before the Program/Erase Controller starts the Erase Timer Bit

is set to ’0’ and additional blocks to be erased may be written to the Command Interface.

The Erase Timer Bit is output on DQ3 when the Status Register is read.

5.5 Alternative Toggle Bit (DQ2)

The Alternative Toggle Bit can be used to monitor the Program/Erase controller during

Erase operations. The Alternative Toggle Bit is output on DQ2 when the Status Register is

read.

During Chip Erase and Block Erase operations the Toggle Bit changes from ’0’ to ’1’ to ’0’,

etc., with successive Bus Read operations from addresses within the blocks being erased.

A protected block is treated the same as a block not being erased. Once the operation

completes the memory returns to Read mode.

During Erase Suspend the Alternative Toggle Bit changes from ’0’ to ’1’ to ’0’, etc. with

successive Bus Read operations from addresses within the blocks being erased. Bus Read

operations to addresses within blocks not being erased will output the memory cell data as if

in Read mode.

After an Erase operation that causes the Error Bit to be set the Alternative Toggle Bit can be

used to identify which block or blocks have caused the error. The Alternative Toggle Bit

changes from ’0’ to ’1’ to ’0’, etc. with successive Bus Read Operations from addresses

within blocks that have not erased correctly. The Alternative Toggle Bit does not change if

the addressed block has erased correctly.

Stat u s Register M29W 640FT, M29 W640FB

32/71

Figure 4. Data Polling flowchart

Tabl e 9. Status Register Bi ts(1)

1. Unspecified data bits should be ignored.

Operation Address DQ7 DQ6 DQ5 DQ3 DQ2 RB

Program Any address DQ7 Toggle 0 – – 0

Program During Erase

Suspend Any address DQ7 Toggle 0 – – 0

Program Error Any address DQ7 Toggle 1 – – Hi-Z

Chip Erase Any address 0 Toggle 0 1 Toggle 0

Block Erase before

timeout

Erasing Block 0 Toggle 0 0 Toggle 0

Non-Erasing Block 0 Toggle 0 0 No Toggle 0

Block Erase

Erasing Block 0 Toggle 0 1 Toggle 0

Non-Erasing Block 0 Toggle 0 1 No Toggle 0

Erase Suspend

Erasing Block 1 No Toggle 0 – Toggle Hi-Z

Non-Erasing Block Data read as normal Hi-Z

Erase Error

Good Block address 0 Toggle 1 1 No Toggle Hi-Z

Faulty Block address 0 Toggle 1 1 Toggle Hi-Z

READ DQ5 & DQ7

at VALID ADDRESS

START

READ DQ7

at VALID ADDRESS

FAIL PASS

AI90194

DQ7

DATA YES

YES

DQ5

= 1

DQ7

DATA YES

M29 W640FT, M29W6 40FB Stat u s Regi ster

33/71

Figure 5. Data To ggle flowch art

READ DQ6

START

READ DQ6

TWICE

FAIL PASS

AI90195B

DQ6

TOGGLE NO

YES

DQ5

= 1

YES

DQ6

TOGGLE

READ

DQ5 & DQ6

Max im um rating M29W 640FT, M29 W640FB

34/71

6 Maximum rating

Stressing the device above the rating listed in the Absolute Maximum Ratings table may

cause permanent damage to the device. Exposure to Absolute Maximum Rating conditions

for extended periods may affect device reliability. These are stress ratings only and

operation of the device at these or any other conditions above those indicated in the

Operating sections of this specification is not implied. Refer also to the Numonyx SURE

Program and other relevant quality documents.

Table 10. Absolute maximu m ratings

Symbol Parameter Min Max Unit

TBIAS Temperature under bias –50 125 °C

TSTG Storage temperature –65 150 °C

VIO Input or Output voltage(1)(2)

1. Minimum voltage may undershoot to –2V during transition and for less than 20ns during transitions.

2. Maximum voltage may overshoot to VCC +2V during transition and for less than 20ns during transitions.

–0.6 VCC +0.6 V

VCC Supply voltage –0.6 4 V

VID Identification voltage –0.6 13.5 V

VPP(3)

3. VPP must not remain at 12V for more than a total of 80hrs.

Program voltage –0.6 13.5 V

M29 W640FT, M29W640FB DC and AC parameters

35/71

7 DC and AC parameters

This section summarizes the operating and measurement conditions, and the DC and AC

characteristics of the device. The parameters in the DC and AC Characteristic tables that

follow are derived from tests performed under the Measurement Conditions summarized in

the relevant tables. Designers should check that the operating conditions in their circuit

match the measurement conditions when relying on the quoted parameters.

Fig u re 6. AC meas u reme nt I/ O waveform

Figure 7. AC measurem ent Load Circuit

Table 11. Operating and AC measurement conditions

Parameter M29W640FT, M29W640FB Unit

Min Max

VCC Supply voltage 2.7 3.6 V

Ambient Operating Temperature –40 85 °C

Load capacitance (CL)30pF

Input Rise and Fall times 10 ns

Input Pulse voltages 0 to VCC V

Input and Output Timing Ref. voltages VCC/2 V

AI05557

VCC

VCC/2

AI05558

CL includes JIG capacitance

DEVICE

UNDER

TEST

25kΩ

VCC

25kΩ

VCC

0.1µF

VPP

0.1µF

DC and AC parameters M29W640FT, M29W640FB

36/71

1. Sampled only, not 100% tested.

Table 12. Device capacitance

Symbol Parameter Test condition Min Max Unit

CIN Input capacitance VIN = 0V 6 pF

COUT Output capacitance VOUT = 0V 12 pF

Table 13. DC ch aracter istics

Symbol Parameter Test condition Min Max Unit

ILI Input Leakage Current 0V ≤ VIN ≤ VCC ±1 μA

ILO Output Leakage Current 0V ≤ VOUT ≤ VCC ±1 μA

ICC1 Supply Current (Read) E = VIL, G = VIH,

f = 6MHz 10 mA

ICC2 Supply Current (Standby) E = VCC ±0.2V,

RP = VCC ±0.2V 100 μA

ICC3

Supply Current

(Program/Erase)

Program/Erase

Controller active

VPP/WP =

VIL or VIH

20 mA

VPP/WP = VPP 20 mA

VIL Input Low voltage –0.5 0.8 V

VIH Input High voltage 0.7VCC VCC +0.3 V

VPP

Voltage for VPP/WP

Program Acceleration VCC = 2.7V ±10% 11.5 12.5 V

IPP

Current for VPP/WP

Program Acceleration VCC = 2.7V ±10% 15 mA

VOL Output Low voltage IOL = 1.8mA 0.45 V

VOH Output High voltage IOH = –100μAV

CC –0.4 V

VID Identification voltage 11.5 12.5 V

VLKO(1)

1. Sampled only, not 100% tested.

Program/Erase Lockout

Supply voltage 1.8 2.3 V

M29 W640FT, M29W640FB DC and AC parameters

37/71

Figure 8. Read Mode AC wav ef orm s

Fig ur e 9. Pa ge Read AC waveforms

AI05559

tAVAV

tAVQV tAXQX

tELQX tEHQZ

tGLQV

tGLQX tGHQX

VALID

A0-A20/

A–1

DQ0-DQ7/

DQ8-DQ15

tELQV tEHQX

tGHQZ

VALID

tBHQV

tELBL/tELBH tBLQZ

BYTE

AI11553

A2-A21

A0-A1 VALID

DQ0-DQ15

VALID VALID VALID

VALID ADDRESS

VALID DATA

VALID

DATA VALID DATA VALID DATA

tAVQV1tGLQV

tAVQV

tELQV tEHQX

tEHQZ

tGHQX

tGHQZ

DC and AC parameters M29W640FT, M29W640FB

38/71

Table 14. Re ad AC cha racte ristics

Symbol Alt Parameter Test condition

M29W640FT,

M29W640FB Unit

60 70

tAVAV tRC Address Valid to Next Address Valid E = VIL,

G = VIL

Min 60 70 ns

tAVQV tACC Address Valid to Output Valid E = VIL,

G = VIL

Max 60 70 ns

tAVQV1 tPAGE Address Valid to Output Valid (Page) E = VIL,

G = VIL

Max 25 25 ns

tELQX(1)

1. Sampled only, not 100% tested.

tLZ Chip Enable Low to Output Transition G = VIL Min 0 0 ns

tELQV tCE Chip Enable Low to Output Valid G = VIL Max 60 70 ns

tGLQX(1) tOLZ

Output Enable Low to Output

Transition E = VIL Min 0 0 ns

tGLQV tOE Output Enable Low to Output Valid E = VIL Max 25 25 ns

tEHQZ(1) tHZ Chip Enable High to Output Hi-Z G = VIL Max 25 25 ns

tGHQZ(1) tDF Output Enable High to Output Hi-Z E = VIL Max 25 25 ns

tEHQX

tGHQX

tAXQX

tOH

Chip Enable, Output Enable or

Address Transition to Output Transition Min 0 0 ns

tELBL

tELBH

tELFL

tELFH

Chip Enable to BYTE Low or High Max 5 5 ns

tBLQZ tFLQZ BYTE Low to Output Hi-Z Max 25 25 ns

tBHQV tFHQV BYTE High to Output Valid Max 30 30 ns

M29 W640FT, M29W640FB DC and AC parameters

39/71

Figu re 10. Write AC waveforms, Write En able co n trolled

AI05560

A0-A20/

A–1

DQ0-DQ7/

DQ8-DQ15

VALID

VCC

tVCHEL

tWHEH

tWHWL

tELWL

tAVWL

tWHGL

tWLAX

tWHDX

tAVAV

tDVWH

tWLWHtGHWL

tWHRL

DC and AC parameters M29W640FT, M29W640FB

40/71

Table 15. Write AC char acteri s tics, Writ e En ab l e co n tr o l led

Symbol Alt Parameter

M29W640FT,

M29W640FB Unit

60 70

tAVAV tWC Address Valid to Next Address Valid Min 60 70 ns

tELWL tCS Chip Enable Low to Write Enable Low Min 0 0 ns

tWLWH tWP Write Enable Low to Write Enable High Min 45 45 ns

tDVWH tDS Input Valid to Write Enable High Min 45 45 ns

tWHDX tDH Write Enable High to Input Transition Min 0 0 ns

tWHEH tCH Write Enable High to Chip Enable High Min 0 0 ns

tWHWL tWPH Write Enable High to Write Enable Low Min 30 30 ns

tAVWL tAS Address Valid to Write Enable Low Min 0 0 ns

tWLAX tAH Write Enable Low to Address Transition Min 45 45 ns

tGHWL Output Enable High to Write Enable Low Min 0 0 ns

tWHGL tOEH Write Enable High to Output Enable Low Min 0 0 ns

tWHRL(1) tBUSY Program/Erase Valid to RB Low Max 30 30 ns

tVCHEL tVCS VCC High to Chip Enable Low Min 50 50 μs

1. Sampled only, not 100% tested.

M29 W640FT, M29W640FB DC and AC parameters

41/71

Figure 11. Write AC wave forms, Chip Enable cont rolle d

AI0556

A0-A20/

A–1

DQ0-DQ7/

DQ8-DQ15

VALID

VCC

tVCHWL

tEHWH

tEHEL

tWLEL

tAVEL

tEHGL

tELAX

tEHDX

tAVAV

tDVEH

tELEHtGHEL

tEHRL

DC and AC parameters M29W640FT, M29W640FB

42/71

Fig ur e 12. Reset/Blo ck Tempo rary Unpro tect AC wave fo rm s

Table 16. Write AC characteristics, Chip Enable controlled

Symbol Alt Parameter M29W640FT, M29W64 0FB Unit

60 70

tAVAV tWC Address Valid to Next Address Valid Min 60 70 ns

tWLEL tWS Write Enable Low to Chip Enable Low Min 0 0 ns

tELEH tCP Chip Enable Low to Chip Enable High Min 45 45 ns

tDVEH tDS Input Valid to Chip Enable High Min 45 45 ns

tEHDX tDH Chip Enable High to Input Transition Min 0 0 ns

tEHWH tWH Chip Enable High to Write Enable High Min 0 0 ns

tEHEL tCPH Chip Enable High to Chip Enable Low Min 30 30 ns

tAVEL tAS Address Valid to Chip Enable Low Min 0 0 ns

tELAX tAH Chip Enable Low to Address Transition Min 45 45 ns

tGHEL Output Enable High Chip Enable Low Min 0 0 ns

tEHGL tOEH Chip Enable High to Output Enable Low Min 0 0 ns

tEHRL(1) tBUSY Program/Erase Valid to RB Low Max 30 30 ns

tVCHWL tVCS VCC High to Write Enable Low Min 50 50 μs

1. Sampled only, not 100% tested.

AI02931B

RP tPLPX

tPHWL, tPHEL, tPHGL

tPLYH

tPHPHH

E, G

tRHWL, tRHEL, tRHGL

M29 W640FT, M29W640FB DC and AC parameters

43/71

Figu re 13. Accelerate d Program Timin g wave forms

AI05563

VPP/WP

VPP

VIL or VIH tVHVPP tVHVPP

Table 17. Reset/Block Tem p o rary Unpro tect AC characteristics

Symbol Alt Parameter M29W640FT,

M29W640FB Unit

tPHWL(1)

tPHEL

tPHGL(1)

tRH

RP High to Write Enable Low, Chip Enable Low,

Output Enable Low Min 50 ns

tRHWL(1)

tRHEL(1)

tRHGL(1)

tRB

RB High to Write Enable Low, Chip Enable Low,

Output Enable Low Min 0 ns

tPLPX tRP RP Pulse Width Min 500 ns

tPLYH tREADY RP Low to Read mode Max 50 μs

tPHPHH(1) tVIDR RP Rise Time to VID Min 500 ns

tVHVPP(1) VPP Rise and Fall Time Min 250 ns

1. Sampled only, not 100% tested.

Package mechanical M29W640FT, M29W640FB

44/71

8 Package mechanical

Fig ur e 14. TSOP48 – 48 lead Plastic Th i n Smal l Outline, 12 x 20m m, top view

package outline

1. Drawing is not to scale.

Table 18. TSOP48 – 48 lead Plastic Th in Small Out li n e, 12 x 20mm, packa g e

mechani cal data

Symbol millimeters inches

Typ Min Max Typ Min Max

A 1.200 0.0472

A1 0.100 0.050 0.150 0.0039 0.0020 0.0059

A2 1.000 0.950 1.050 0.0394 0.0374 0.0413

B 0.220 0.170 0.270 0.0087 0.0067 0.0106

C 0.100 0.210 0.0039 0.0083

CP 0.100 0.0039

D1 12.000 11.900 12.100 0.4724 0.4685 0.4764

E 20.000 19.800 20.200 0.7874 0.7795 0.7953

E1 18.400 18.300 18.500 0.7244 0.7205 0.7283

e 0.500 – – 0.0197 – –

L 0.600 0.500 0.700 0.0236 0.0197 0.0276

L1 0.800 0.0315

α3° 0° 5° 3° 0° 5°

TSOP-G

DIE

LA1 α

M29 W640FT, M29 W640FB Package mecha n i cal

45/71

Figu r e 15. TF BGA48 6x8m m - 6x8 act ive ball array, 0.8mm p i tch , package outl ine

1. Drawing is not to scale.

Table 19. TF BGA48 6x8mm - 6x8 active ball array, 0.8mm p i tch , package

mechani cal data

Symbol millimeters inches

Typ Min Max Typ Min Max

A 1.200 0.0472

A1 0.260 0.0102

A2 0.900 0.0354

b 0.350 0.450 0.0138 0.0177

D 6.000 5.900 6.100 0.2362 0.2323 0.2402

D1 4.000 – – 0.1575 – –

ddd 0.100 0.0039

E 8.000 7.900 8.100 0.3150 0.3110 0.3189

E1 5.600 – – 0.2205 – –

e 0.800 – – 0.0315 – –

FD 1.000 – – 0.0394 – –

FE 1.200 – – 0.0472 – –

SD 0.400 – – 0.0157 – –

SE 0.400 – – 0.0157 – –

E1E

BGA-Z32

ddd

FE SD

BALL "A1"

Part numbering M29W640FT, M29W640FB

46/71

9 Part numbering

Note: This product is also available with the Extended Block factory locked. For further details and

ordering inf ormat i on con tac t y our nearest Numonyx sales off i ce.

Devices are shipped from the factory with the memory content bits erased to 1. For a list of

available options (Speed, Package, etc.) or for further information on any aspect of this

device, please contact your nearest Numonyx Sales Office.

Table 20. Ordering inform at io n scheme

Example: M29W640FB 70 N 6 F

Device Type

M29

Operating Voltage

W = VCC = 2.7 to 3.6V

Device Function

640F = 64 Mbit (x8 / x16), Boot Block

Array Matrix

T = Top Boot

B = Bottom Boot

Speed

60 = 60ns

70 = 70ns

Package

N = TSOP48: 12 x 20 mm

ZA = TFBGA48: 6x8mm, 0.80 mm pitch

Temperature Range

6 = −40 to 85 °C

Option

E = ECOPACK Package, Standard Packing

F = ECOPACK Package, Tape & Reel Packing

M29 W640FT, M29 W640FB Bl o ck addr esse s

47/71

Appendix A Block addresses

Ta ble 21. Top Boot Block addre sses, M29W64 0FT

Block KByt es/KWords P rotection Block Group (x8) (x16)

0 64/32

Protection Group

000000h–00FFFFh(1) 000000h–007FFFh(1)

1 64/32 010000h–01FFFFh 008000h–00FFFFh

2 64/32 020000h–02FFFFh 010000h–017FFFh

3 64/32 030000h–03FFFFh 018000h–01FFFFh

4 64/32

Protection Group

040000h–04FFFFh 020000h–027FFFh

5 64/32 050000h–05FFFFh 028000h–02FFFFh

6 64/32 060000h–06FFFFh 030000h–037FFFh

7 64/32 070000h–07FFFFh 038000h–03FFFFh

8 64/32

Protection Group

080000h–08FFFFh 040000h–047FFFh

9 64/32 090000h–09FFFFh 048000h–04FFFFh

10 64/32 0A0000h–0AFFFFh 050000h–057FFFh

11 64/32 0B0000h–0BFFFFh 058000h–05FFFFh

12 64/32

Protection Group

0C0000h–0CFFFFh 060000h–067FFFh

13 64/32 0D0000h–0DFFFFh 068000h–06FFFFh

14 64/32 0E0000h–0EFFFFh 070000h–077FFFh

15 64/32 0F0000h–0FFFFFh 078000h–07FFFFh

16 64/32

Protection Group

100000h–10FFFFh 080000h–087FFFh

17 64/32 110000h–11FFFFh 088000h–08FFFFh

18 64/32 120000h–12FFFFh 090000h–097FFFh

19 64/32 130000h–13FFFFh 098000h–09FFFFh

20 64/32

Protection Group

140000h–14FFFFh 0A0000h–0A7FFFh

21 64/32 150000h–15FFFFh 0A8000h–0AFFFFh

22 64/32 160000h–16FFFFh 0B0000h–0B7FFFh

23 64/32 170000h–17FFFFh 0B8000h–0BFFFFh

24 64/32

Protection Group

180000h–18FFFFh 0C0000h–0C7FFFh

25 64/32 190000h–19FFFFh 0C8000h–0CFFFFh

26 64/32 1A0000h–1AFFFFh 0D0000h–0D7FFFh

27 64/32 1B0000h–1BFFFFh 0D8000h–0DFFFFh

28 64/32

Protection Group

1C0000h–1CFFFFh 0E0000h–0E7FFFh

29 64/32 1D0000h–1DFFFFh 0E8000h–0EFFFFh

30 64/32 1E0000h–1EFFFFh 0F0000h–0F7FFFh

31 64/32 1F0000h–1FFFFFh 0F8000h–0FFFFFh

Block addr ess es M 29W64 0F T , M 29W640FB

48/71

32 64/32

Protection Group

200000h–20FFFFh 100000h–107FFFh

33 64/32 210000h–21FFFFh 108000h–10FFFFh

34 64/32 220000h–22FFFFh 110000h–117FFFh

35 64/32 230000h–23FFFFh 118000h–11FFFFh

36 64/32

Protection Group

240000h–24FFFFh 120000h–127FFFh

37 64/32 250000h–25FFFFh 128000h–12FFFFh

38 64/32 260000h–26FFFFh 130000h–137FFFh

39 64/32 270000h–27FFFFh 138000h–13FFFFh

40 64/32

Protection Group

280000h–28FFFFh 140000h–147FFFh

41 64/32 290000h–29FFFFh 148000h–14FFFFh

42 64/32 2A0000h–2AFFFFh 150000h–157FFFh

43 64/32 2B0000h–2BFFFFh 158000h–15FFFFh

44 64/32

Protection Group

2C0000h–2CFFFFh 160000h–167FFFh

45 64/32 2D0000h–2DFFFFh 168000h–16FFFFh

46 64/32 2E0000h–2EFFFFh 170000h–177FFFh

47 64/32 2F0000h–2FFFFFh 178000h–17FFFFh

48 64/32

Protection Group

300000h–30FFFFh 180000h–187FFFh

49 64/32 310000h–31FFFFh 188000h–18FFFFh

50 64/32 320000h–32FFFFh 190000h–197FFFh

51 64/32 330000h–33FFFFh 198000h–19FFFFh

52 64/32

Protection Group

340000h–34FFFFh 1A0000h–1A7FFFh

53 64/32 350000h–35FFFFh 1A8000h–1AFFFFh

54 64/32 360000h–36FFFFh 1B0000h–1B7FFFh

55 64/32 370000h–37FFFFh 1B8000h–1BFFFFh

56 64/32

Protection Group

380000h–38FFFFh 1C0000h–1C7FFFh

57 64/32 390000h–39FFFFh 1C8000h–1CFFFFh

58 64/32 3A0000h–3AFFFFh 1D0000h–1D7FFFh

59 64/32 3B0000h–3BFFFFh 1D8000h–1DFFFFh

60 64/32

Protection Group

3C0000h–3CFFFFh 1E0000h–1E7FFFh

61 64/32 3D0000h–3DFFFFh 1E8000h–1EFFFFh

62 64/32 3E0000h–3EFFFFh 1F0000h–1F7FFFh

63 64/32 3F0000h–3FFFFFh 1F8000h–1FFFFFh

Ta ble 21. Top Boot Block addre sses, M29W64 0FT ( cont inued)

Block KByt es/KWords P rotection Block Group (x8) (x16)

M29 W640FT, M29 W640FB Bl o ck addr esse s

49/71

64 64/32

Protection Group

400000h–40FFFFh 200000h–207FFFh

65 64/32 410000h–41FFFFh 208000h–20FFFFh

66 64/32 420000h–42FFFFh 210000h–217FFFh

67 64/32 430000h–43FFFFh 218000h–21FFFFh

68 64/32

Protection Group

440000h–44FFFFh 220000h–227FFFh

69 64/32 450000h–45FFFFh 228000h–22FFFFh

70 64/32 460000h–46FFFFh 230000h–237FFFh

71 64/32 470000h–47FFFFh 238000h–23FFFFh

72 64/32

Protection Group

480000h–48FFFFh 240000h–247FFFh

73 64/32 490000h–49FFFFh 248000h–24FFFFh

74 64/32 4A0000h–4AFFFFh 250000h–257FFFh

75 64/32 4B0000h–4BFFFFh 258000h–25FFFFh

76 64/32

Protection Group

4C0000h–4CFFFFh 260000h–267FFFh

77 64/32 4D0000h–4DFFFFh 268000h–26FFFFh

78 64/32 4E0000h–4EFFFFh 270000h–277FFFh

79 64/32 4F0000h–4FFFFFh 278000h–27FFFFh

80 64/32

Protection Group

500000h–50FFFFh 280000h–287FFFh

81 64/32 510000h–51FFFFh 288000h–28FFFFh

82 64/32 520000h–52FFFFh 290000h–297FFFh

83 64/32 530000h–53FFFFh 298000h–29FFFFh

84 64/32

Protection Group

540000h–54FFFFh 2A0000h–2A7FFFh

85 64/32 550000h–55FFFFh 2A8000h–2AFFFFh

86 64/32 560000h–56FFFFh 2B0000h–2B7FFFh

87 64/32 570000h–57FFFFh 2B8000h–2BFFFFh

88 64/32

Protection Group

580000h–58FFFFh 2C0000h–2C7FFFh

89 64/32 590000h–59FFFFh 2C8000h–2CFFFFh

90 64/32 5A0000h–5AFFFFh 2D0000h–2D7FFFh

91 64/32 5B0000h–5BFFFFh 2D8000h–2DFFFFh

92 64/32

Protection Group

5C0000h–5CFFFFh 2E0000h–2E7FFFh

93 64/32 5D0000h–5DFFFFh 2E8000h–2EFFFFh

94 64/32 5E0000h–5EFFFFh 2F0000h–2F7FFFh

95 64/32 5F0000h–5FFFFFh 2F8000h–2FFFFFh

Ta ble 21. Top Boot Block addre sses, M29W64 0FT ( cont inued)

Block KByt es/KWords P rotection Block Group (x8) (x16)

Block addr ess es M 29W64 0F T , M 29W640FB

50/71

96 64/32

Protection Group

600000h–60FFFFh 300000h–307FFFh

97 64/32 610000h–61FFFFh 308000h–30FFFFh

98 64/32 620000h–62FFFFh 310000h–317FFFh

99 64/32 630000h–63FFFFh 318000h–31FFFFh

100 64/32

Protection Group

640000h–64FFFFh 320000h–327FFFh

101 64/32 650000h–65FFFFh 328000h–32FFFFh

102 64/32 660000h–66FFFFh 330000h–337FFFh

103 64/32 670000h–67FFFFh 338000h–33FFFFh

104 64/32

Protection Group

680000h–68FFFFh 340000h–347FFFh

105 64/32 690000h–69FFFFh 348000h–34FFFFh

106 64/32 6A0000h–6AFFFFh 350000h–357FFFh

107 64/32 6B0000h–6BFFFFh 358000h–35FFFFh

108 64/32

Protection Group

6C0000h–6CFFFFh 360000h–367FFFh

109 64/32 6D0000h–6DFFFFh 368000h–36FFFFh

110 64/32 6E0000h–6EFFFFh 370000h–377FFFh

111 64/32 6F0000h–6FFFFFh 378000h–37FFFFh

112 64/32

Protection Group

700000h–70FFFFh 380000h–387FFFh

113 64/32 710000h–71FFFFh 388000h–38FFFFh

114 64/32 720000h–72FFFFh 390000h–397FFFh

115 64/32 730000h–73FFFFh 398000h–39FFFFh

116 64/32

Protection Group

740000h–74FFFFh 3A0000h–3A7FFFh

117 64/32 750000h–75FFFFh 3A8000h–3AFFFFh

118 64/32 760000h–76FFFFh 3B0000h–3B7FFFh

119 64/32 770000h–77FFFFh 3B8000h–3BFFFFh

120 64/32

Protection Group

780000h–78FFFFh 3C0000h–3C7FFFh

121 64/32 790000h–79FFFFh 3C8000h–3CFFFFh

122 64/32 7A0000h–7AFFFFh 3D0000h–3D7FFFh

123 64/32 7B0000h–7BFFFFh 3D8000h–3DFFFFh

Ta ble 21. Top Boot Block addre sses, M29W64 0FT ( cont inued)

Block KByt es/KWords P rotection Block Group (x8) (x16)

M29 W640FT, M29 W640FB Bl o ck addr esse s

51/71

124 64/32

Protection Group

7C0000h–7CFFFFh 3E0000h–3E7FFFh

125 64/32 7D0000h–7DFFFFh 3E8000h–3EFFFFh

126 64/32 7E0000h–7EFFFFh 3F0000h–3F7FFFh

127 8/4 7F0000h–7F1FFFh 3F8000h–3F8FFFh

128 8/4 7F2000h–7F3FFFh 3F9000h–3F9FFFh

129 8/4 7F4000h–7F5FFFh 3FA000h–3FAFFFh

130 8/4 7F6000h–7F7FFFh 3FB000h–3FBFFFh

131 8/4 7F8000h–7F9FFFh 3FC000h–3FCFFFh

132 8/4 7FA000h–7FBFFFh 3FD000h–3FDFFFh

133 8/4 7FC000h–7FDFFFh 3FE000h–3FEFFFh

134 8/4 7FE000h–7FFFFFh 3FF000h–3FFFFFh

1. Used as the Extended Block addresses in Extended Block mode.

Ta ble 21. Top Boot Block addre sses, M29W64 0FT ( cont inued)

Block KByt es/KWords P rotection Block Group (x8) (x16)

Block addr ess es M 29W64 0F T , M 29W640FB

52/71

Table 22. Bottom Boot Block addresses, M29W640FB

Blo ck KBytes/KWords Protection Bloc k Gr oup (x8) (x16)

08/4

Protection Group

000000h-001FFFh(1) 000000h–000FFFh(1)

1 8/4 002000h-003FFFh 001000h–001FFFh

2 8/4 004000h-005FFFh 002000h–002FFFh

3 8/4 006000h-007FFFh 003000h–003FFFh

4 8/4 008000h-009FFFh 004000h–004FFFh

5 8/4 00A000h-00BFFFh 005000h–005FFFh

6 8/4 00C000h-00DFFFh 006000h–006FFFh

7 8/4 00E000h-00FFFFh 007000h–007FFFh

8 64/32 010000h-01FFFFh 008000h–00FFFFh

9 64/32 020000h-02FFFFh 010000h–017FFFh

10 64/32 030000h-03FFFFh 018000h–01FFFFh

11 64/32

Protection Group

040000h-04FFFFh 020000h–027FFFh

12 64/32 050000h-05FFFFh 028000h–02FFFFh

13 64/32 060000h-06FFFFh 030000h–037FFFh

14 64/32 070000h-07FFFFh 038000h–03FFFFh

15 64/32

Protection Group

080000h-08FFFFh 040000h–047FFFh

16 64/32 090000h-09FFFFh 048000h–04FFFFh

17 64/32 0A0000h-0AFFFFh 050000h–057FFFh

18 64/32 0B0000h-0BFFFFh 058000h–05FFFFh

19 64/32

Protection Group

0C0000h-0CFFFFh 060000h–067FFFh

20 64/32 0D0000h-0DFFFFh 068000h–06FFFFh

21 64/32 0E0000h-0EFFFFh 070000h–077FFFh

22 64/32 0F0000h-0FFFFFh 078000h–07FFFFh

23 64/32

Protection Group

100000h-10FFFFh 080000h–087FFFh

24 64/32 110000h-11FFFFh 088000h–08FFFFh

25 64/32 120000h-12FFFFh 090000h–097FFFh

26 64/32 130000h-13FFFFh 098000h–09FFFFh

27 64/32

Protection Group

140000h-14FFFFh 0A0000h–0A7FFFh

28 64/32 150000h-15FFFFh 0A8000h–0AFFFFh

29 64/32 160000h-16FFFFh 0B0000h–0B7FFFh

30 64/32 170000h-17FFFFh 0B8000h–0BFFFFh

31 64/32

Protection Group

180000h-18FFFFh 0C0000h–0C7FFFh

32 64/32 190000h-19FFFFh 0C8000h–0CFFFFh

33 64/32 1A0000h-1AFFFFh 0D0000h–0D7FFFh

34 64/32 1B0000h-1BFFFFh 0D8000h–0DFFFFh

M29 W640FT, M29 W640FB Bl o ck addr esse s

53/71

35 64/32

Protection Group

1C0000h-1CFFFFh 0E0000h–0E7FFFh

36 64/32 1D0000h-1DFFFFh 0E8000h–0EFFFFh

37 64/32 1E0000h-1EFFFFh 0F0000h–0F7FFFh

38 64/32 1F0000h-1FFFFFh 0F8000h–0FFFFFh

39 64/32

Protection Group

200000h-20FFFFh 100000h–107FFFh

40 64/32 210000h-21FFFFh 108000h–10FFFFh

41 64/32 220000h-22FFFFh 110000h–117FFFh

42 64/32 230000h-23FFFFh 118000h–11FFFFh

43 64/32

Protection Group

240000h-24FFFFh 120000h–127FFFh

44 64/32 250000h-25FFFFh 128000h–12FFFFh

45 64/32 260000h-26FFFFh 130000h–137FFFh

46 64/32 270000h-27FFFFh 138000h–13FFFFh

47 64/32

Protection Group

280000h-28FFFFh 140000h–147FFFh

48 64/32 290000h-29FFFFh 148000h–14FFFFh

49 64/32 2A0000h-2AFFFFh 150000h–157FFFh

50 64/32 2B0000h-2BFFFFh 158000h–15FFFFh

51 64/32

Protection Group

2C0000h-2CFFFFh 160000h–167FFFh

52 64/32 2D0000h-2DFFFFh 168000h–16FFFFh

53 64/32 2E0000h-2EFFFFh 170000h–177FFFh

54 64/32 2F0000h-2FFFFFh 178000h–17FFFFh

55 64/32

Protection Group

300000h-30FFFFh 180000h–187FFFh

56 64/32 310000h-31FFFFh 188000h–18FFFFh

57 64/32 320000h-32FFFFh 190000h–197FFFh

58 64/32 330000h-33FFFFh 198000h–19FFFFh

59 64/32

Protection Group

340000h-34FFFFh 1A0000h–1A7FFFh

60 64/32 350000h-35FFFFh 1A8000h–1AFFFFh

61 64/32 360000h-36FFFFh 1B0000h–1B7FFFh

62 64/32 370000h-37FFFFh 1B8000h–1BFFFFh

63 64/32

Protection Group

380000h-38FFFFh 1C0000h–1C7FFFh

64 64/32 390000h-39FFFFh 1C8000h–1CFFFFh

65 64/32 3A0000h-3AFFFFh 1D0000h–1D7FFFh

66 64/32 3B0000h-3BFFFFh 1D8000h–1DFFFFh

Table 22. Bottom Boot Block addresses, M29W640FB (continued)

Blo ck KBytes/KWords Protection Bloc k Gr oup (x8) (x16)

Block addr ess es M 29W64 0F T , M 29W640FB

54/71

67 64/32

Protection Group

3C0000h-3CFFFFh 1E0000h–1E7FFFh

68 64/32 3D0000h-3DFFFFh 1E8000h–1EFFFFh

69 64/32 3E0000h-3EFFFFh 1F0000h–1F7FFFh

70 64/32 3F0000h-3FFFFFh 1F8000h–1FFFFFh

71 64/32

Protection Group

400000h-40FFFFh 200000h–207FFFh

72 64/32 410000h-41FFFFh 208000h–20FFFFh

73 64/32 420000h-42FFFFh 210000h–217FFFh

74 64/32 430000h-43FFFFh 218000h–21FFFFh

75 64/32

Protection Group

440000h-44FFFFh 220000h–227FFFh

76 64/32 450000h-45FFFFh 228000h–22FFFFh

77 64/32 460000h-46FFFFh 230000h–237FFFh

78 64/32 470000h-47FFFFh 238000h–23FFFFh

79 64/32

Protection Group

480000h-48FFFFh 240000h–247FFFh

80 64/32 490000h-49FFFFh 248000h–24FFFFh

81 64/32 4A0000h-4AFFFFh 250000h–257FFFh

82 64/32 4B0000h-4BFFFFh 258000h–25FFFFh

83 64/32

Protection Group

4C0000h-4CFFFFh 260000h–267FFFh

84 64/32 4D0000h-4DFFFFh 268000h–26FFFFh

85 64/32 4E0000h-4EFFFFh 270000h–277FFFh

86 64/32 4F0000h-4FFFFFh 278000h–27FFFFh

87 64/32

Protection Group

500000h-50FFFFh 280000h–287FFFh

88 64/32 510000h-51FFFFh 288000h–28FFFFh

89 64/32 520000h-52FFFFh 290000h–297FFFh

90 64/32 530000h-53FFFFh 298000h–29FFFFh

91 64/32

Protection Group

540000h-54FFFFh 2A0000h–2A7FFFh

92 64/32 550000h-55FFFFh 2A8000h–2AFFFFh

93 64/32 560000h-56FFFFh 2B0000h–2B7FFFh

94 64/32 570000h-57FFFFh 2B8000h–2BFFFFh

95 64/32

Protection Group

580000h-58FFFFh 2C0000h–2C7FFFh

96 64/32 590000h-59FFFFh 2C8000h–2CFFFFh

97 64/32 5A0000h-5AFFFFh 2D0000h–2D7FFFh

98 64/32 5B0000h-5BFFFFh 2D8000h–2DFFFFh

Table 22. Bottom Boot Block addresses, M29W640FB (continued)

Blo ck KBytes/KWords Protection Bloc k Gr oup (x8) (x16)

M29 W640FT, M29 W640FB Bl o ck addr esse s

55/71

99 64/32

Protection Group

5C0000h-5CFFFFh 2E0000h–2E7FFFh

100 64/32 5D0000h-5DFFFFh 2E8000h–2EFFFFh

101 64/32 5E0000h-5EFFFFh 2F0000h–2F7FFFh

102 64/32 5F0000h-5FFFFFh 2F8000h–2FFFFFh

103 64/32

Protection Group

600000h-60FFFFh 300000h–307FFFh

104 64/32 610000h-61FFFFh 308000h–30FFFFh

105 64/32 620000h-62FFFFh 310000h–317FFFh

106 64/32 630000h-63FFFFh 318000h–31FFFFh

107 64/32

Protection Group

640000h-64FFFFh 320000h–327FFFh

108 64/32 650000h-65FFFFh 328000h–32FFFFh

109 64/32 660000h-66FFFFh 330000h–337FFFh

110 64/32 670000h-67FFFFh 338000h–33FFFFh

111 64/32

Protection Group

680000h-68FFFFh 340000h–347FFFh

112 64/32 690000h-69FFFFh 348000h–34FFFFh

113 64/32 6A0000h-6AFFFFh 350000h–357FFFh

114 64/32 6B0000h-6BFFFFh 358000h–35FFFFh

115 64/32

Protection Group

6C0000h-6CFFFFh 360000h–367FFFh

116 64/32 6D0000h-6DFFFFh 368000h–36FFFFh

117 64/32 6E0000h-6EFFFFh 370000h–377FFFh

118 64/32 6F0000h-6FFFFFh 378000h–37FFFFh

119 64/32

Protection Group

700000h-70FFFFh 380000h–387FFFh

120 64/32 710000h-71FFFFh 388000h–38FFFFh

121 64/32 720000h-72FFFFh 390000h–397FFFh

122 64/32 730000h-73FFFFh 398000h–39FFFFh

123 64/32

Protection Group

740000h-74FFFFh 3A0000h–3A7FFFh

124 64/32 750000h-75FFFFh 3A8000h–3AFFFFh

125 64/32 760000h-76FFFFh 3B0000h–3B7FFFh

126 64/32 770000h-77FFFFh 3B8000h–3BFFFFh

127 64/32

Protection Group

780000h-78FFFFh 3C0000h–3C7FFFh

128 64/32 790000h-79FFFFh 3C8000h–3CFFFFh

129 64/32 7A0000h-7AFFFFh 3D0000h–3D7FFFh

130 64/32 7B0000h-7BFFFFh 3D8000h–3DFFFFh

Table 22. Bottom Boot Block addresses, M29W640FB (continued)

Blo ck KBytes/KWords Protection Bloc k Gr oup (x8) (x16)

Block addr ess es M 29W64 0F T , M 29W640FB

56/71

131 64/32

Protection Group

7C0000h-7CFFFFh 3E0000h–3E7FFFh

132 64/32 7D0000h-7DFFFFh 3E8000h–3EFFFFh

133 64/32 7E0000h-7EFFFFh 3F0000h–3F7FFFh

134 64/32 7F0000h-7FFFFFh 3F8000h–3FFFFFh

1. Used as the Extended Block addresses in Extended Block mode.

Table 22. Bottom Boot Block addresses, M29W640FB (continued)

Blo ck KBytes/KWords Protection Bloc k Gr oup (x8) (x16)

M29 W640FT, M29 W640FB Common Flash Interface (C F I )

57/71

Appendix B Common Flash Interface (CFI)

The Common Flash Interface is a JEDEC approved, standardized data structure that can be

read from the Flash memory device. It allows a system software to query the device to

determine various electrical and timing parameters, density information and functions

supported by the memory. The system can interface easily with the device, enabling the

software to upgrade itself when necessary.

When the CFI Query Command is issued the device enters CFI Query mode and the data

structure is read from the memory. Tables 23, 24, 25, 26, 27, and 28, show the addresses

used to retrieve the data.

The CFI data structure also contains a security area where a 64 bit unique security number

is written (see Table 28: Security Code Area). This area can be accessed only in Read

mode by the final user. It is impossible to change the security number after it has been

written by ST.

Table 23. Query stru cture overview (1)

1. Query data are always presented on the lowest order data outputs.

Address Sub-section name Description

x16 x8

10h 20h CFI Query Identification String Command set ID and algorithm data offset

1Bh 36h System Interface Information Device timing & voltage information

27h 4Eh Device Geometry Definition Flash device layout

40h 80h Primary Algorithm-specific Extended

Query table

Additional information specific to the

Primary Algorithm (optional)

61h C2h Security Code Area 64 bit unique device number

Common Flash Interface (CFI) M29W640FT, M29W640FB

58/71

Table 24. CFI Query I den tifi cation Strin g(1)

1. Query data are always presented on the lowest order data outputs (DQ7-DQ0) only. DQ8-DQ15 are ‘0’.

Address Data Description Value

x16 x8

10h 20h 0051h “Q”

11h 22h 0052h Query Unique ASCII String "QRY" "R"

12h 24h 0059h "Y"

13h 26h 0002h Primary Algorithm Command Set and Control Interface ID code

16 bit ID code defining a specific algorithm

AMD

Compatible

14h 28h 0000h

15h 2Ah 0040h Address for Primary Algorithm extended Query table (see

Table 27)P = 40h

16h 2Ch 0000h

17h 2Eh 0000h Alternate Vendor Command Set and Control Interface ID Code

second vendor - specified algorithm supported NA

18h 30h 0000h

19h 32h 0000h

Address for Alternate Algorithm extended Query table NA

1Ah 34h 0000h

Table 25. CFI Qu ery S ystem I n terfa ce Information

Address Data Description Value

x16 x8

1Bh 36h 0027h

VCC Logic Supply Minimum Program/Erase voltage

bit 7 to 4BCD value in volts

bit 3 to 0BCD value in 100 mV

2.7V

1Ch 38h 0036h

VCC Logic Supply Maximum Program/Erase voltage

bit 7 to 4BCD value in volts

bit 3 to 0BCD value in 100 mV

3.6V

1Dh 3Ah 00B5h

VPP [Programming] Supply Minimum Program/Erase voltage

bit 7 to 4HEX value in volts

bit 3 to 0BCD value in 100 mV

11.5V

1Eh 3Ch 00C5h

VPP [Programming] Supply Maximum Program/Erase voltage

bit 7 to 4HEX value in volts

bit 3 to 0BCD value in 100 mV

12.5V

1Fh 3Eh 0004h Typical timeout per single byte/word program = 2n μs16μs

20h 40h 0000h Typical timeout for minimum size write buffer program = 2n μsNA

21h 42h 000Ah Typical timeout per individual Block Erase = 2n ms 1s

22h 44h 0000h Typical timeout for full Chip Erase = 2n ms NA

23h 46h 0004h Maximum timeout for byte/word program = 2n times typical 256μs

24h 48h 0000h Maximum timeout for write buffer program = 2n times typical NA

25h 4Ah 0003h Maximum timeout per individual Block Erase = 2n times typical 8s

26h 4Ch 0000h Maximum timeout for Chip Erase = 2n times typical NA

M29 W640FT, M29 W640FB Common Flash Interface (C F I )

59/71

Table 26. Device Geom etry Defini ti o n(1)

1. For Bottom Boot devices, Erase Block Region 1 is located from address 000000h to 007FFFh and Erase

Block Region 2 from address 008000h to 3FFFFFh.

For Top Boot devices, Erase Block Region 1 is located from address 000000h to 3F7FFFh and Erase

Block Region 2 from address 3F8000h to 3FFFFFh.

Address Data Description Value

x16 x8

27h 4Eh 0017h Device Size = 2n in number of bytes 8 MByte

28h

29h

50h

52h

0002h

0000h Flash Device Interface Code description x8, x16

Async.

2Ah

2Bh

54h

56h

0004h

0000h Maximum number of bytes in multi-byte program or page = 2n 16 Bytes

2Ch 58h 0002h Number of Erase Block Regions. It specifies the number of

regions containing contiguous Erase Blocks of the same size. 2

2Dh

2Eh

5Ah

5Ch

0007h

0000h

Region 1 Information

Number of Erase Blocks of identical size = 0007h+1 8

2Fh

30h

5Eh

60h

0020h

0000h

Region 1 Information

Block size in Region 1 = 0020h * 256 byte 8Kbyte

31h

32h

62h

64h

007Eh

0000h

Region 2 Information

Number of Erase Blocks of identical size= 007Eh+1 127

33h

34h

66h

68h

0000h

0001h

Region 2 Information

Block size in Region 2 = 0100h * 256 byte 64Kbyte

35h

36h

37h

38h

6Ah

6Ch

6Eh

70h

0000h

Region 3 Information

Number of Erase Blocks of identical size=007Fh+1

Region 3 Information

Block size in Region 3 = 0000h * 256 byte

39h

3Ah

3Bh

3Ch

72h

74h

76h

78h

0000h

Region 4 Information

Number of Erase Blocks of Identical size=007Fh+1

Region 4 Information

Block size in Region 4 = 0000h * 256 byte

Common Flash Interface (CFI) M29W640FT, M29W640FB

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Table 27. Pri mary Algorith m -speci fic Extended Qu ery table

Address Data Description Value

x16 x8

40h 80h 0050h

Primary Algorithm extended Query table unique ASCII string

“PRI”

"P"

41h 82h 0052h "R"

42h 84h 0049h "I"

43h 86h 0031h Major version number, ASCII “1”

44h 88h 0033h Minor version number, ASCII "3"

45h 8Ah 0000h

Address Sensitive Unlock (bits 1 to 0)

00h = required, 01h = not required

Silicon Revision Number (bits 7 to 2)

Yes

46h 8Ch 0002h Erase Suspend

00h = not supported, 01h = Read only, 02 = Read and Write 2

47h 8Eh 0004h Block Protection

00h = not supported, x = number of blocks per protection group 4

48h 90h 0001h Temporary Block Unprotect

00h = not supported, 01h = supported Yes

49h 92h 0004h Block Protect /Unprotect

04 = M29W640F 04

4Ah 94h 0000h Simultaneous Operations, 00h = not supported No

4Bh 96h 0000h Burst Mode: 00h = not supported, 01h = supported No

4Ch 98h 0001h Page Mode: 00h = not supported, 01h = 4 page word, 02h = 8

page word Yes

4Dh 9Ah 00B5h

VPP Supply Minimum Program/Erase voltage

bit 7 to 4 HEX value in volts

bit 3 to 0 BCD value in 100 mV

11.5V

4Eh 9Ch 00C5h

VPP Supply Maximum Program/Erase voltage

bit 7 to 4 HEX value in volts

bit 3 to 0 BCD value in 100 mV

12.5V

4Fh 9Eh 0002h

0003h

Top/Bottom Boot Block Flag

02h = Bottom Boot device

03h = Top Boot device

–

50h A0h 0001h

Program Suspend

00h = Not Supported

01h = Supported

Suppor

ted

M29 W640FT, M29 W640FB Common Flash Interface (C F I )

61/71

Table 28. S ecurit y Code Area

Address Data Description

x16 x8

61h C3h, C2h XXXX

64 bit: unique device number

62h C5h, C4h XXXX

63h C7h, C6h XXXX

64h C9h, C8h XXXX

Exte n d ed Me mory Blo ck M29W 640FT, M29W640F B
62/71   
Appendix C  Extended Memory Block
The M29W640F has an extra block, the Extended Block, that can be accessed using a 
dedicated command.
This Extended Block is 128 Words in x16 mode and 256 Bytes in x8 mode. It is used as a 
security block to provide a permanent security identification number) or to store additional 
information. 
The Extended Block is either Factory Locked or Customer Lockable, its status is indicated 
by bit DQ7. This bit is permanently set to either ‘1’ or ‘0’ at the factory and cannot be 
changed. When set to ‘1’, it indicates that the device is factory locked and the Extended 
Block is protected. When set to ‘0’, it indicates that the device is customer lockable and the 
Extended Block is unprotected. Bit DQ7 being permanently locked to either ‘1’ or ‘0’ is 
another security feature which ensures that a customer lockable device cannot be used 
instead of a factory locked one.
Bit DQ7 is the most significant bit in the Extended Block Verify Code and a specific 
procedure must be followed to read it. See “Extended Memory Block Verify Code” in Table 4: 
Bu s opera tions, BYTE  =  VIL and Table 5: Bus operations, BYTE = VIH, for details of how to 
read bit DQ7.
The Extended Block can only be accessed when the device is in Extended Block mode. For 
details of how the Extended Block mode is entered and exited, refer to the Section 4.3.1: 
Enter Extended Block command and Section 4.3.2: Exit Extended Block command, and to 
Table 6 and Table 7: Commands, 8-b it mode, BYTE = VIL.
C.1  Factory Locked Extended Block
In devices where the Extended Block is factory locked, the Security Identification Number is 
written to the Extended Block address space (see Table 29: Exten ded Bl ock address and 
data) in the factory. The DQ7 bit is set to ‘1’ and the Extended Block cannot be unprotected.
C.2  Customer Lockable Extended Block
A device where the Extended Block is customer lockable is delivered with the DQ7 bit set to 
‘0’ and the Extended Block unprotected. It is up to the customer to program and protect the 
Extended Block but care must be taken because the protection of the Extended Block is not 
reversible.
There are two ways of protecting the Extended Block:
■Issue the Enter Extended Block command to place the device in Extended Block mode, 
then use the In-System Technique with RP either at VIH or at VID (refer to Append i x D, 
Sectio n D.2: In-Syste m tec hni que  and to the corresponding flowcharts, Figure 18 and 
Figure 19, for a detailed explanation of the technique).
■Issue the Enter Extended Block command to place the device in Extended Block mode, 
then use the Programmer Technique (refer to Appendix D, Section D.1: Programmer 
technique and to the corresponding flowcharts, Figure 16 and Figure 17, for a detailed 
explanation of the technique).
Once the Extended Block is programmed and protected, the Exit Extended Block command 
must be issued to exit the Extended Block mode and return the device to Read mode.

M29 W640FT, M29W640FB Extended M emo ry Bloc k

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Table 29. Extended Block address and dat a

Address Data

x8 x16 Factory Locked Cus tomer Lockable

000000h-00007Fh 000000h-00003Fh Security Identification Number Determined by

customer

000080h-0000FFh 000040h-00007Fh Unavailable

Block protection M29W640FT, M29W640FB

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Appendix D Block protection

Block protection can be used to prevent any operation from modifying the data stored in the

memory. The blocks are protected in groups, refer to Appendix A: Block addresses,

Table 21 and Table 22 for details of the Protection Groups. Once protected, Program and

Erase operations within the protected group fail to change the data.

There are three techniques that can be used to control Block Protection, these are the

Programmer technique, the In-System technique and Temporary Unprotection. Temporary

Unprotection is controlled by the Reset/Block Temporary Unprotection pin, RP; this is

described in the Signal Descriptions section.

D.1 Programmer technique

The Programmer technique uses high (VID) voltage levels on some of the bus pins. These

cannot be achieved using a standard microprocessor bus, therefore the technique is

recommended only for use in Programming Equipment.

To protect a group of blocks follow the flowchart in Figu re 16: Progr am mer Equi pment

Group Protect flowchart. To unprotect the whole chip it is necessary to protect all of the

groups first, then all groups can be unprotected at the same time. To unprotect the chip

follow Figure 17: Program m er Equi pment Ch i p Unprot ect f l owchar t. Table 30: Programmer

tec hnique bus opera tions , BY TE = VIH or VIL, gives a summary of each operation.

The timing on these flowcharts is critical. Care should be taken to ensure that, where a

pause is specified, it is followed as closely as possible. Do not abort the procedure before

reaching the end. Chip Unprotect can take several seconds and a user message should be

provided to show that the operation is progressing.

D.2 In-System technique

The In-System technique requires a high voltage level on the Reset/Blocks Temporary

Unprotect pin, RP(1). This can be achieved without violating the maximum ratings of the

components on the microprocessor bus, therefore this technique is suitable for use after the

memory has been fitted to the system.

To protect a group of blocks follow the flowchart in Figu re 18: In-System Eq ui pment Group

Protect flowchart. To unprotect the whole chip it is necessary to protect all of the groups first,

then all the groups can be unprotected at the same time. To unprotect the chip follow

Figur e 19: In-Sy st em Equipment Chip Unpro tect f l owch art.

The timing on these flowcharts is critical. Care should be taken to ensure that, where a

pause is specified, it is followed as closely as possible. Do not allow the microprocessor to

service interrupts that will upset the timing and do not abort the procedure before reaching

the end. Chip Unprotect can take several seconds and a user message should be provided

to show that the operation is progressing.

Note: RP can be ei ther at VIH or at VID when using the In-System Technique to protect the

Ex te nded Bl ock.

M29 W640FT, M29W640FB Block p ro tec tion

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Ta ble 30. Programmer technique bus operations, BYTE = VIH or VIL

Operation E G W Address Inputs

A0-A21 Data Input s/Outputs

DQ15A–1, DQ14-DQ0

Block (Group)

Protect(1) VIL VID VIL Pulse A9 = VID, A12-A21 = Block address

Others = X X

Chip Unprotect VID VID VIL Pulse A9 = VID, A12 = VIH, A15 = VIH

Others = X X

Block (Group)

Protection Verify VIL VIL VIH

A0, A2, A3 = VIL, A1 = VIH, A6 = VIL,

A9 = VID, A12-A21 = Block address

Others = X

Pass = XX01h

Retry = XX00h

Block (Group)

Unprotection Verify VIL VIL VIH

A0, A2, A3 = VIL, A1 = VIH, A6 = VIH,

A9 = VID, A12-A21 = Block address

Others = X

Retry = XX01h

Pass = XX00h

1. Block Protection Groups are shown in Appendix A, Tables 21 and 22.

Block protection M29W640FT, M29W640FB

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Figure 16. Programmer Equipment Group Protect flowchart

1. Block Protection Groups are shown in Appendix A, Tables 21 and 22.

ADDRESS = GROUP ADDRESS

AI11555

G, A9 = VID,

E = VIL

n = 0

Wait 4µs

Wait 100µs

W = VIL

W = VIH

E, G = VIH,

A0, A2, A3 = VIL, A1 =VIH,

A6 =VIL, A9 = VID, Others = X

A9 = VIH

E, G = VIH

++n

= 25

START

FAIL

PASS

YES

DATA

01hYES

W = VIH

E = VIL

Wait 4µs

G = VIL

Wait 60ns

Read DATA

Verify Protect Set-upEnd

A9 = VIH

E, G = VIH

M29 W640FT, M29W640FB Block p ro tec tion

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Figure 17. Programmer Equipme nt Ch ip Unprotect flowchart

1. Block Protection Groups are shown in Appendix A, Tables 21 and 22.

PROTECT ALL GROUPS

AI11556b

A6, A12, A15 = VIH(1)

E, G, A9 = VID

DATA

W = VIH

E, G = VIH

ADDRESS = CURRENT GROUP ADDRESS

A0, A2, A3 = VIL, A1 =VIH,

A6 =VIH, A9 = VID, Others = X

Wait 10ms

00h

INCREMENT

CURRENT GROUP

n = 0

CURRENT GROUP = 0

Wait 4µs

W = VIL

++n

= 1000

START

YES

YESNO

NO LAST

GROUP

YES

E = VIL

Wait 4µs

G = VIL

Wait 60ns

Read DATA

FAIL PASS

Verify Unprotect Set-upEnd

A9 = VIH

E, G = VIH A9 = VIH

E, G = VIH

Block protection M29W640FT, M29W640FB

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Figure 18. In-Sys tem Equipm ent Group Protect flowcha rt

1. Block Protection Groups are shown in Appendix A, Tables 21 and 22.

2. RP can be either at VIH or at VID when using the In-System Technique to protect the Extended Block.

AI11563

WRITE 60h

ADDRESS = GROUP ADDRESS

A0, A2, A3, A6 = VIL, A1 = VIH

n = 0

Wait 100µs

WRITE 40h

ADDRESS = GROUP ADDRESS

A0, A2, A3, A6 = VIL, A1 = VIH

RP = VIH ++n

= 25

START

FAIL

PASS

YES

DATA

01hYES

RP = VIH

Wait 4µs

Verify Protect Set-upEnd

READ DATA

ADDRESS = GROUP ADDRESS

A0, A2, A3, A6 = VIL, A1 = VIH

RP = VID

ISSUE READ/RESET

COMMAND

ISSUE READ/RESET

COMMAND

WRITE 60h

ADDRESS = GROUP ADDRESS

A0, A2, A3, A6 = VIL, A1 = VIH

M29 W640FT, M29W640FB Block p ro tec tion

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Figure 19. In-Sys tem Equipm ent Chip Unpr otect flow char t

1. Block Protection Groups are shown in Appendix A, Tables 21 and 22.

AI11564

WRITE 60h

ANY ADDRESS WITH

A0, A2, A3 = VIL, A1, A6 = VIH

n = 0

CURRENT GROUP = 0

Wait 10ms

WRITE 40h

ADDRESS = CURRENT GROUP ADDRESS

A0, A2, A3 = VIL, A1, A6 = VIH

RP = VIH

++n

= 1000

START

FAIL PASS

YES

DATA

00h

YESNO

RP = VIH

Wait 4µs

READ DATA

ADDRESS = CURRENT GROUP ADDRESS

A0, A2, A3 = VIL, A1, A6 = VIH

RP = VID

ISSUE READ/RESET

COMMAND

ISSUE READ/RESET

COMMAND

PROTECT ALL GROUPS

INCREMENT

CURRENT GROUP

LAST

GROUP

YES

WRITE 60h

ANY ADDRESS WITH

A0, A2, A3, A6 = VIL, A1 = VIH

Verify Unprotect Set-upEnd

Revision  h isto ry M29W 640FT, M29W6 40FB
70/71   
Revision history
         
Table 31. Document revision history
Date Revision Changes
01-Mar-2005 0.1 First Issue.
17-May-2005 0.2 Asynchronous Page mode added.
70ns speed class added.
07-Oct-2005 1.0
Device codes modified.
TFBGA63 replaced by TFBGA48 6x8 package. ECOPACK text updated
Page size changed to 4 Word. 
90ns speed class removed.
Quadruple Word/Octuple Byte Program command added.
Table 4: Bus operations, BYTE = VIL and Table 5: Bus operations, BYTE 
= VIH: A0-A21 addresses for reading the Device Code, the Manufacturer 
Code, the Extended Memory Block Verify Code, and the Block Protection 
Status, have been updated. 
Appendix D: Block protection: Table 30: Programmer technique bus 
operations, BYTE = VIH or VIL: A0-A21 addresses updated for Block 
Protection/Unprotection Verify using the Programmer technique.
02-Dec-2005 2
Datasheet status changed to “Full Datasheet”. 
60ns speed class added.
Program Suspend and Resume added.
Section 2.8: VPP/Write Protect (VPP/WP) and Section 4.2: Fast Progra m 
commands. Sectio n 4: Command interfac e restructured.
Table 29: Extended Bl ock address and data updated.
15-Dec-2005 3
Double Byte Program commands added in Sectio n 4: Command 
interface. 
Table 4: Bus operations, BYTE = VIL and Table 5: Bus operations, BYTE 
= VIH.: A6 changed from VIH to VIL for Read Block Protection Status 
operation. 
10-Mar-2006 4
DQ7 changed to DQ7 for Program, Program During Erase Suspend and 
Program Error in Table 9: Status Register Bits.
A6 = VIL corrected to A6 = VIH during the Verify phase in Figure 17: 
Programmer Equipment Chip Unprotect flowchart.
Address ranges modified for x8 and x16 modes in Table 29: Ex tended 
Block address and data.
23-Aug-2006 5
Amended mistake in second title (M29W640FT changed to 
M29W640FB); removed the 4th cycle from the double byte program of 
Table 7: Command s,  8-bit mode, BYTE = VIL
25-Oct-2006 6 Ta ble 9: Status  R e gister Bi ts updated.
10-Dec-2007 7 Applied Numonyx branding.
28-Aug-2008 8 Added clarifications regarding VPPH when performing Fast Program 
commands.

M29 W640FT, M29 W640FB

71/71

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