SST29LE020-200-4I-EHE - Silicon Storage Technology

S71062-09-EOL 8/05

The SST logo and SuperFlash are registered trademarks of Silicon Storage Technology, Inc.

SSF is a trademark of Silicon Storage Technology, Inc.

These specifications are subject to cha nge without notice.

EOL Product Data Sheet

2 Mbit (256K x8) Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

FEATURES:

• Single Voltage Read and Write Operations

– 4.5-5.5V for SST29EE020

– 3.0-3.6V for SST29LE020

– 2.7-3.6V for SST29VE020

• Superior Reliability

– Endurance: 100,000 Cycles (typical)

– Greater than 100 years Data Retention

• Low Power Consumption

– Active Current: 20 mA (typical) for 5V and

10 mA (typical) for 3.0/2.7V

– Standby Current: 10 µA (typical)

• Fast Page-Write Operation

– 128 Bytes per Page, 2048 Pages

– Page-Write Cycle: 5 ms (typical)

– Complete Memory Rewrite: 10 sec (typical)

– Effective Byte-Write Cycle Time : 39 µs (typica l )

• Fast Read Access Time

– 4.5-5.5V operation: 120 ns

– 3.0-3.6V operation: 200 ns

– 2.7-3.6V operation: 200 ns

• Latched Address and Data

• Automatic Write Timing

– Internal VPP Generation

• End of Write Detection

– Toggle Bit

– Data# Polling

• Har dware and Software Data Protection

• Product Identification can be accessed via

Software Operation

• TTL I/O Compatibility

• JEDEC Standard

– Flash EEPROM Pinouts and command sets

• Packages Available

– 32-lead PLCC

– 32-lead TSOP (8mm x 20mm)

– 32-pin PDIP

PRODUCT DESCRIPTION

The SST29EE/LE/VE020 are 256K x8 CMOS Page-Write

EEPROM manufactured with SST’s proprietary, high per-

formance CMOS SuperFlash technology. The split-gate

cell design and thick oxide tunneling injector attain better

reliability and manufacturability compared with alternate

approaches. The SST29EE/LE/VE020 write with a single

power supply. Internal Erase/Program is transparent to the

user. The SST29EE/LE/VE020 conform to JEDEC stan-

dard pinouts f or b yte-wide memories.

F eaturing high perf ormance P age-Write, the SST29EE/L E/

VE020 provide a typical Byte-Write time of 39 µsec. The

entire memory, i.e., 256 KByte, can be written page-by-

page in as little as 10 seconds, when using interface fea-

tures such as Toggle Bit or Data# Polling to indicate the

completion of a Write cycle. To protect against inadver tent

write, the SST29EE/LE/VE0 20 hav e on-chip hardw are and

Software Data Protection schemes. Designed, manufac-

tured, and tested for a wide spectrum of applications, the

SST29EE/LE/VE020 are offered with a guaranteed Page-

Write endurance of 10,000 cycles . Data retention is rated at

greater t han 100 y ears .

The SST29EE/LE/VE020 are suited for applications

that require convenient and economical updating of

program, configuration, or data memory. For all sys-

tem applications, the SST29EE/LE/ VE020 sig nificant ly

improve performance and reliability, while lowering

power consumption. The SST29EE/LE/VE020

improve flexibility while lowering the cost for program,

data, and configuration storage applications.

To meet high density, surface mount requirements, the

SST29EE/LE/VE020 are offered in 32-lead PLCC and

32-lead TSOP packages. A 600-mil, 32-pin PDIP pack-

age is also av ailab le . See Figures 1, 2, and 3 f or pinouts.

Device Operation

The SST Page-Write EEPROM offers in-circuit electrical

write capability. The SST29EE/LE/VE020 does not require

separate Erase and Program operations. The internally

timed Write cycle executes both erase and program trans-

parently to the user. The SST29EE/LE/VE020 have indus-

try standard optional Software Data Protection, which SST

recommends always to be enabled. The SST29EE/LE/

VE020 are compatible with industry standard EEPROM

pinouts and functionality.

SST29EE / LE / VE0202Mb (x 8) Page-Write, Small-S ector flash memories

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

Read

The Read operations of the SST29EE/LE/VE020 are con-

trolled b y CE# and OE#, both ha ve to be lo w f or the system

to obtain data from the outputs. CE# is used for device

selection. When CE# is high, the chip is deselected and

only standb y power is consu med. OE# is the output control

and is used to gate data from the output pins. The data bus

is in high impedance state when either CE# or OE# is high.

Refer to the Read cycle timing diagram for further details

(Figure 4).

Write

The Page-Write to th e SST29EE/LE/VE020 sh ould al w ays

use the JEDEC Standard Software Data Protection (SDP)

three-byte command sequence. The SST29EE/LE/VE020

contain the optional JEDEC approved Software Data Pro-

tection scheme. SST recommends that SDP always be

enabled, thus, the description of the Write operations will

be given using the SDP enabled format. The three-byte

SDP Enable and SDP Write commands are identical;

therefore, any time a SDP Write command is issued,

Software Data Pr otection is automatically assured. The

first time the three -byt e SDP command is giv en, the de vice

becomes SDP enab led. Subsequent issuance of the same

command b ypa sses the da ta pro tection for the page being

written. At the end of the desired Page-Write, the entire

device remains protected. For additional descriptions,

please see the application notes The Proper Use of

JEDEC Standard Soft ware Data Prot ect ion and Protecting

Against Unintentional Writes When Using Single Power

Supply Flash Memories .

The Write operation consists of three steps. Step 1 is the

three-byte load sequence for Software Data Protection.

Step 2 is the byte-load cycle to a page buffer of the

SST29EE/LE/VE020. Steps 1 and 2 use the same timing

for both operations. Step 3 is an internally controlled Write

cycle for writing the data loaded in the page buffer into the

memory arra y f or non v ola tile stor age . During both the SDP

three-byte load sequence and the byte-load cycle, the

addresses are latched by the falling edge of either CE# or

WE#, whiche v er occurs last . The data is latched b y the ris-

ing edge of either CE# or WE#, whiche v er occurs first . The

inter nal Write cy cle is initiated by the TBLCO timer after the

rising edge of WE# or CE#, whichever occurs first. The

Write cycle, once initiated, will continue to completion, typi-

cally within 5 ms. See Figures 5 and 6 for WE# and CE#

controlled Page-Write cycle timing diagrams and Figures

15 and 17 f or flowcharts.

The Write operation has three functional cycles: the Soft-

ware Data Protection load sequence, the page-load cycle,

and the internal Write cycle. The Software Data Protection

consists of a specific three-byte load sequence that allows

writing to the selected page and will leave the SST29EE/

LE/VE020 protected at the end of the Page-Write. The

page-load cycle consists of loading 1 to 128 Bytes of data

into the page b uff er . The inte rnal Write cycle consists of the

TBLCO time-out and the write timer operation. During the

Write operation, the only valid reads are Data# Polling and

Toggle Bit.

The Page-Write operation allows the loading of up to 128

bytes of data into the page buffer of the SST29EE/LE/

VE020 before the initiation of the inter nal Wr ite cycle. Dur-

ing the internal Write cycle, all the data in the page b uff er is

written simultaneously into the memory array. Hence, the

P age-Write f ea ture of SST29EE/LE/VE020 allo w the entir e

memory to be written in as little as 10 seconds. During the

internal Write cycle, the host is free to perform additional

tasks, such as to fetch data from other locations in the sys-

tem to set up the write to the ne xt page. In each P age-Write

operatio n, all the bytes that are loaded into the page buffer

must have the same page address, i.e. A7 through A16. Any

byte not loaded with user data will be written to FFH.

See Figures 5 and 6 for the Page-Write cycle timing dia-

grams. If after the completion of the three-byte SDP load

sequence or the initial b yte-load cycle, the host loads a sec-

ond byte into the page buffer within a byte-load cycle time

(TBLC) of 100 µs, the SST29EE/LE/VE020 will stay in the

page-load cycle . Additional bytes are then loaded consecu-

tively. The page-load cycle will be terminated if no addi-

tional byte is loaded into the page buffer within 200 µs

(TBLCO) from the last byte-load cycle, i.e., no subsequent

WE# or CE# high-to-lo w tr ansition af ter the la st rising edge

of WE# or CE#. Data in the page b uff er can be changed by

a subsequent byte-load cycle. The page-load period can

continue indefinitely, as long as the host continues to load

the device within the byte-load cycle time of 100 µs. The

page to be loaded is determined by the page address of

the last b yte loaded.

Software Chip-Erase

The SST29EE/LE/VE020 provide a Chip-Erase operation,

which allows the user to simultaneously clear the entire

memory arra y to the “1” state. This is useful when the entire

de vice must be quickly er ased.

The Software Chip-Erase operation is initiated by using a

specific six-byte load sequence. After the load sequence,

the de vice enters into an internally timed cycle similar to the

Write cycle. During the Erase operation , the only v alid read

is Toggle Bit. See Table 4 for the load sequence, Figure 10

f or timing diagram , and Figure 19 for the flowchart.

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

Write Operation Status Detection

The SST29EE/LE/VE020 provide two software means to

detect the completion of a Write cycle, in order to optimize

the system Write cycle time. The software detection

includes two status bits: Data# Polling (DQ7) and Toggle Bit

(DQ6). The end of write detection mode is enab led after the

rising WE# or CE# whichever occurs first, which initiates

the internal Write cycle.

The actual completion of the nonvolatile write is asynchro-

nous with the system; therefore, either a Data# Polling or

Toggle Bit read may be simultaneous with the completion

of the Write cycle. If this occurs, the system may possibly

get an erroneous result, i. e., valid data may appear to con-

flict with either DQ7 or DQ6. In order to prevent spurious

rejection, if an err oneous result occurs , the softw are routine

should include a loop to read the accessed location an

additional two (2) times. If both reads are valid, then the

device has completed the Write cycle, otherwise the rejec-

tion is v alid.

Data# Polling (DQ7)

When the SST29EE/LE/VE020 are in the internal Write

cycle, any attempt to read DQ7 of the last byte loaded dur-

ing the byte-load cycle will receive the complement of the

true data. Once the Write cycle is completed, DQ7 will

show true data. Note tha t e ven though DQ7 may have valid

data immediately following the completion of an internal

Write operation, the remaining data outputs may still be

invalid: valid data on the entire data bus will appear in sub-

sequent successive Read cycles after an interval of 1 µs.

See Figure 7 for Data# Polling timing diagram and Figure

16 f or a flowchart.

Toggle Bit (DQ6)

During the internal Write cycle, an y consecutive attempts to

read DQ6 will produce alternating ‘0’s and ‘1’s, i.e., toggling

between 0 and 1. When the Write cycle is completed, the

toggling will stop. The device is then ready for the next

operation. See Figure 8 for Toggle Bit timing diagram and

Figure 16 for a flowchar t. The initial read of the Toggle Bit

will typically be a “1”.

Data Protection

The SST29EE/LE/VE020 provide both hardware and soft-

ware features to protect nonvolatile data from inadvertent

writes.

Hardware Data Protection

Noise/Glitch Protection: A WE# or CE# pulse of less than 5

ns will not initiate a Write cycle.

VDD Power Up/Down Detection: The Write operation is

inhibited when VDD is less than 2.5V.

Write Inhibit Mode: Forcing OE# low, CE# high, or WE#

high will inhibit the Wr ite operation. This prevents inadvert-

ent writes during power-up or po wer-do wn.

Software Data Protection (SDP)

The SST29EE/LE/VE020 provide the JEDEC approved

optional Software Data Protection scheme for all data alter-

ation operations, i.e., Write and Chip-Erase. With this

scheme, any Write operation requires the inclusion of a

series of three-byte load operations to precede the data

loading operat ion. The three-b yte load se quence is used t o

initiate the Write cycle, providing optimal protection from

inadvertent Write operations, e.g., during the system

power-up or power-down. The SST29EE/LE/VE020 are

shipped with the Software Dat a Protection disab led.

The software protection scheme can be enabled by apply-

ing a three-byte sequence to the device, during a page-

load cycle (Figures 5 and 6). The device will then be auto-

matically set into the data protect mode. Any subsequent

Write operation will require the preceding three-byte

sequence. See Table 4 for the specific software command

codes and Figures 5 and 6 for the timing diagrams. To set

the device into t he unprot ected mode, a six-b y te sequ ence

is required. See Table 4 f or the specific codes and Figur e 9

for the timing diagram. If a Write is attempted while SDP is

enabled the device will be in a non-accessible state for

~300 µs. SST recommends Software Data Protection

alwa ys be enabled . See Figure 17 f or flowch arts.

The SST29EE/LE/VE020 Software Data Protection is a

global command, protecting all pages in the entire memory

array once enabled (or disabled). Therefore using SDP for

a single Page-Write will enable SDP for the entire array.

Single pages by themselves cannot be SDP enabled or

disabled.

Single power supply reprogrammable nonvolatile memo-

ries may be unintentionally altered. SST strongly recom-

mends that Software Data Protection (SDP) always be

enabled . The SST29EE/LE/VE020 should be prog rammed

using the SDP command sequence . SST recommends the

SDP Disable Command Sequence not be issued to the

de vice prior to writing.

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

Please refer to the following Application Notes for more

inf ormation on using SDP:

•Protecting Against Unintentional Writes When

Using Single Power Supply Flash Memories

•The Proper Use of JEDEC St andard Software

Data Protection

Product Identification

The Product Identification mode identifies the device

as the SST29EE/LE/VE020 and manufacturer as SST.

This mode is accessed via software. For details, see

Table 4, Figure 11 for the software ID entry and read

timing diagram, and Figure 18 for the ID entry com-

mand sequence flowchart.

Product Identification Mode Exit

In order to return to the standard Read mode , the Softw are

Product Identification mode must be exited. Exiting is

accomplished by issuing the Software ID Exit (reset) opera-

tion, which returns the device to the Read operation. The

Reset operation ma y also be used to reset the device to the

Read mode after an inadvertent transient condition that

apparently causes the device to behave abnormally, e.g.,

not read correctly. See Table 4 for software command

codes, Figure 12 for timing wavefor m, and Figure 18 for a

flowchart.

TABLE 1: PRODUCT IDENTIFICATION

Address Data

Manufacturer’s ID 0000H BFH

Device ID

SST29EE020 0001H 10H

SST29LE020 0001H 12H

SST29VE020 0001H 12H

T1.3 1062

Y-Decoder and Page Latches

I/O Buffers and Data Latches

307 ILL B1

Address Buffer & Latches

X-Decoder

DQ7 - DQ0

17 - A0

WE#

OE#

CE#

SuperFlash

Memory

Control Logic

FUNCTIONAL BLOCK DIAGRAM

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

FIGURE 1: PIN ASSIGNMENTS FOR 32-LEAD PLCC

FIGURE 2: PIN ASSIGNMENTS FOR 32-LEAD TSOP

FIGURE 3: PIN ASSIGNMENTS FOR 32-PIN PDIP

4 3 2 1 32 31 30

A12

A15

A16

A17

32-lead PLCC

Top View

307 ILL F02.3

14 15 16 17 18 19 20

DQ1

DQ2

VSS

DQ3

DQ4

DQ5

DQ6

A11

A13

A14

A17

VDD

A16

A15

A12

OE#

A10

CE#

DQ7

DQ6

DQ5

DQ4

DQ3

VSS

DQ2

DQ1

DQ0

307 ILL F01

Standard Pinout

Top View

Die Up

32-pin

PDIP

Top View

307 ILL F19.0

A16

A15

A12

A17

A14

A13

A11

A10

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

TABLE 2: PIN DESCRIPTION

Symbol Pin Name Functions

A17-A7Row Address Inputs To provide memory addresses. Row addresses define a page for a Write cycle.

A6-A0Column Address Inputs Column Addresses are toggled to load page data

DQ7-DQ0Data Input/output To output data during Read cycles and receive input data during Write cycles.

Data is inter nally latched during a Write cycle.

The outputs are in tri-state when OE# or CE# is high.

CE# Chip Enable To activate the device when CE# is low.

OE# Output Enable To gate the data output buffers.

WE# Write Enable To control the Write operations.

VDD Power Supply To provide: 5.0V supply (4.5-5.5V) for SST29EE020

3.0V supply (3.0-3.6V) for SST29LE020

2.7V supply (2.7-3.6V) for SST29VE020

VSS Ground

NC No Connection Unconnected pins.

T2.2 1062

TABLE 3: OPERATION MODES SELECTION

Mode CE# OE# WE# DQ Address

Read VIL VIL VIH DOUT AIN

Page-Write VIL VIH VIL DIN AIN

Standby VIH X1

1. X can be VIL or VIH, but no other value

X High Z X

Write Inhibit X VIL X High Z/ DOUT X

XXV

IH High Z/ DOUT X

Software Chip-Erase VIL VIH VIL DIN AIN, See Table 4

Product Identification

Software Mode VIL VIH VIL Manufacturer’s ID (BFH)

Device ID2

2. Device ID = 10H for SST29EE020 and 12H for SST29LE/VE020

See Table 4

SDP Enable Mode VIL VIH VIL See Table 4

SDP Disable Mode VIL VIH VIL See Table 4

T3.3 1062

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

Note: This product supports both the JEDEC standard three-byte command code sequence and SST’s original six-byte command code

sequence. For new designs, SST recommends that the three-byte command code sequence be used.

TABLE 4: SOFTWARE COMMAND SEQUENCE

Command

Sequence 1st Bus

Write Cycle 2nd Bus

Write Cycle 3rd Bus

Write Cyc le 4th Bus

Write Cyc le 5th Bus

Write Cycle 6th Bus

Write Cycle

Addr1Data Addr1Data Addr1Data Addr1Data Addr1Data Addr1Data

Software

Data Protect Enable

& Page-Write

5555H AAH 2AAAH 55H 5555H A0H Addr2Data

Software Chip-Erase 35555H AAH 2AAAH 55H 5555H 80H 5555H AAH 2AAAH 55H 5555H 10H

Software ID Entry4,5 5555H AAH 2AAAH 55H 5555H 90H

Software ID Exit 5555H AAH 2AAAH 55H 5555H F0 H

Alternate

Software ID Entry65555H AAH 2AAAH 55H 5555H 80H 5555H AAH 2AAAH 55H 5555H 60H

T4.2 1062

1. Address format A14-A0 (Hex), Address A15 can be VIL or VIH, but no other value.

2. Page-Write consists of loading up to 128 Bytes (A6-A0)

3. The software Chip-Erase function is not supported by the industrial temperature part.

Please contact SST if you require this function for an industrial temperature part.

4. The device does not remain in Software Product ID Mode if powered down.

5. With A14-A1 = 0; SST Manufacturer’s ID = BFH, is read with A0 = 0,

SST29EE020 Device ID = 10H, is read with A0 = 1

SST29LE/VE020 Device ID = 12H, is read with A0 = 1

6. Alternate six-byte Software Product ID Command Code

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

Absolute Maximum Stress Ratings (Applied conditions greater than those listed under “Absolute Maximum

Stress Ratings” may cause permanent damage to the device. This is a stress rating only and functional operation

of the device at these conditions or conditions greater than those defined in the operational sections of this data

sheet is not implied. Exposure to absolute maximum stress rating conditions may affect device reliability.)

Temperature Under Bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55°C to +125°C

Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65°C to +150°C

D. C. Voltage on Any Pin to Ground Potential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-0.5V to VDD+0.5V

Transient Voltage (<20 ns) on Any Pin to Ground Potential . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-2.0V to VDD+2.0V

Voltage on A9 Pin to Ground Potential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to 14.0V

Package Power Dissipation Capability (Ta = 25°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0W

Through Hole Lead Soldering Temperature (10 Seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C

Surf ace Mount Lead Soldering Temperature (3 Seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240°C

Output Short Circuit Current1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA

1. Outputs shorted for no more than one second. No more than one output shorted at a time.

OPERATING RANGE FOR SST29EE020

Range Ambient Temp VDD

Commercial 0°C to +70°C 4.5-5.5V

Industrial -40°C to +85°C 4.5-5.5V

OPERATING RANGE FOR SST29LE020

Range Ambient Temp VDD

Commercial 0°C to +70°C 3.0-3.6V

Industrial -40°C to +85°C 3.0-3.6V

OPERATING RANGE FOR SST29VE020

Range Ambient Temp VDD

Commercial 0°C to +70°C 2.7-3.6V

Industrial -40°C to +85°C 2.7-3.6V

AC CONDITIONS OF TEST

Input Rise/Fall Time . . . . . . . . . . . . . . 10 ns

Output Load . . . . . . . . . . . . . . . . . . . . . 1 TTL Gate and CL = 100 pF

See Figures 13 and 14

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

TABLE 5: DC OPERATING CHARACTERISTICS VDD = 4.5-5.5V FOR SST29EE020

Symbol Parameter

Limits

Test ConditionsMin Max Units

IDD Power Supply Current Address input=VILT/VIHT, at f=1/TRC Min,

VDD=VDD Max

Read 30 mA CE#=OE#=VIL, WE#=VIH, all I/Os open

Program and Erase 50 mA CE#=WE#=VIL, OE#=VIH, VDD=VDD Max

ISB1 Standby VDD Current

(TTL input) 3 mA CE#=OE#=WE#=VIH, VDD=VDD Max

ISB2 Standby VDD Current

(CMOS input) 50 µA CE#=OE#=WE#=VDD-0.3V, VDD=VDD Max

ILI Input Leakage Current 1 µA VIN=GND to VDD, VDD=VDD Max

ILO Output Leakage Current 10 µA VOUT=GND to VDD, VDD=VDD Max

VIL Input Low Voltage 0.8 V VDD=VDD Min

VIH Input High Voltage 2.0 V VDD=VDD Max

VOL Output Lo w Voltage 0.4 V IOL=2.1 mA, VDD=VDD Min

VOH Output High Voltage 2.4 V IOH=-400 µA, VDD=VDD Min

T5.3 1062

TABLE 6: DC OPERATING CHARACTERISTICS VDD = 3.0-3.6V FOR SST29LE020 AND 2.7-3.6V FOR SST29VE020

Symbol Parameter

Limits

Test ConditionsMin Max Units

IDD Power Supply Current Address input=VILT/VIHT, at f=1/TRC Min,

VDD=VDD Max

Read 12 mA CE#=OE#=VIL, WE#=VIH, all I/Os open

Program and Erase 15 mA CE#=WE#=VIL, OE#=VIH, VDD=VDD Max

ISB1 Standby VDD Current

(TTL input) 1 mA CE#=OE#=WE#=VIH, VDD=VDD Max

ISB2 Standby VDD Current

(CMOS input) 15 µA CE#=OE#=WE#=VDD-0.3V, VDD=VDD Max

ILI Input Leakage Current 1 µA VIN=GND to VDD, VDD=VDD Max

ILO Output Leakage Current 10 µA VOUT=GND to VDD, VDD=VDD Max

VIL Input Low Voltage 0.8 V VDD=VDD Min

VIH Input High Voltage 2.0 V VDD=VDD Max

VOL Output Lo w Voltage 0.4 V IOL=100 µA, VDD=VDD Min

VOH Output High Voltage 2.4 V IOH=-100 µA, VDD=VDD Min

T6.3 1062

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

TABLE 7: RECOMMENDED SYSTEM POWER-UP TIMINGS

Symbol Parameter Minimum Units

TPU-READ1Power-up to Read Operation 100 µs

TPU-WRITE1Power-up to Write Operation 5 ms

T7.1 1062

1. This parameter is measured only for initial qualification and after a design or process change t hat could affect this parameter.

TABLE 8: CAPACITANCE (Ta = 25°C, f=1 Mhz, other pins open)

Parameter Description Test Condition Maximum

CI/O1

1. This parameter is measured only for initial qualification and after a design or process change t hat could affect this parameter.

I/O Pin Capacitance VI/O = 0V 12 pF

CIN1Input Capacitance VIN = 0V 6 pF

T8.0 1062

TABLE 9: RELIABILITY CHARACTERISTICS

Symbol Parameter Minimum Specification Units Test Method

NEND1

1. This parameter is measured only for initial qualification and after a design or process change t hat could affect this parameter.

Endurance 10,000 Cycles JEDEC Standard A117

TDR1Data Retention 100 Years JEDEC Standard A103

ILTH1Latch Up 100 mA JEDEC Standard 78

T9.5 1062

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

AC CHARACTERISTICS

TABLE 10: READ CYCLE TIMING PARAMETERS FOR SST 29EE020

Symbol Parameter

SST29EE020-120

UnitsMin Max

TRC Read Cycle Time 120 ns

TCE Chip Enable Access Time 120 ns

TAA Address Access Time 120 ns

TOE Output Enable Access Time 50 ns

TCLZ1

1. This parameter is measured only for initial qualification and after a design or process change t hat could affect this parameter.

CE# Low to Active Output 0 ns

TOLZ1OE# Low to Active Output 0 ns

TCHZ1CE# High to High-Z Output 30 ns

TOHZ1OE# High to High-Z Output 30 ns

TOH1Output Hold from Address Change 0 ns

T10.5 1062

TABLE 11: READ CYCLE TIMING PARAMETERS FOR SST 29LE0 20

Symbol Parameter

SST29LE020-200

UnitsMin Max

TRC Read Cycle Time 200 ns

TCE Chip Enable Access Time 200 ns

TAA Address Access Time 200 ns

TOE Output Enable Access Time 100 ns

TCLZ1

1. This parameter is measured only for initial qualification and after a design or process change t hat could affect this parameter.

CE# Low to Active Output 0 ns

TOLZ1OE# Low to Active Output 0 ns

TCHZ1CE# High to High-Z Output 50 ns

TOHZ1OE# High to High-Z Output 50 ns

TOH1Output Hold from Address Change 0 ns

T11.2 1062

TABLE 12: READ CYCLE TIMING PARAMETERS FOR SST 29VE020

Symbol Parameter

SST29VE020-200

UnitsMin Max

TRC Read Cycle Time 200 ns

TCE Chip Enable Access Time 200 ns

TAA Address Access Time 200 ns

TOE Output Enable Access Time 100 ns

TCLZ1

1. This parameter is measured only for initial qualification and after a design or process change t hat could affect this parameter.

CE# Low to Active Output 0 ns

TOLZ1OE# Low to Active Output 0 ns

TCHZ1CE# High to High-Z Output 50 ns

TOHZ1OE# High to High-Z Output 50 ns

TOH1Output Hold from Address Change 0 ns

T12.2 1062

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

TABLE 13: PAGE-WRITE CYCLE TIMING PARAMETERS

Symbol Parameter

SST29EE020 SST29LE/VE020

UnitsMin Max Min Max

TWC Write Cycle (Erase and Program) 10 10 ms

TAS Address Setup Time 0 0 ns

TAH Address Hold Time 50 70 ns

TCS WE# and CE# Setup Time 0 0 ns

TCH WE# and CE# Hold Time 0 0 ns

TOES OE# High Setup Time 0 0 ns

TOEH OE# High Hold Time 0 0 ns

TCP CE# Pulse Width 70 120 ns

TWP WE# Pulse Width 70 120 ns

TDS Data Setup Time 35 50 ns

TDH1Data Hold Time 0 0 ns

TBLC1Byte Load Cycle Time 0.05 100 0.05 100 µs

TBLCO1Byte Load Cycle Time 200 200 µs

TIDA1Software ID Access and Exit Time 10 10 µs

TSCE Software Chip-Er ase 20 20 ms

T13.5 1062

1. This parameter is measured only for initial qualification and after a design or process change t hat could affect this parameter.

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

FIGURE 4: READ CYCLE TIMING DIAGRAM

FIGURE 5: WE# CONTROLLED PAGE-WRITE CYCLE TIMING DIAGRAM

307 ILL F03

CE#

DDRESS A17-0

OE#

WE#

DQ 7-0

VIH

TCLZ TOH

D ATA VALID

TOLZ

TOE

HIGH-Z HIGH-Z

TCE

TCHZ

TOHZ

TRC TAA

307 ILL F04

CE#

OE#

WE#

DDRESS A17-0

DQ 7-0

SW0

AA 55 A0

D ATA VALID

SW1 SW2

BYTE 0 BYTE 1 BYTE 127

TDS

TDH

TBLC TBLCO

TWC

TWP

TOEH

TOES

TCH

TCS

TAH

TAS

5555

Three-Byte Sequence for

Enabling SDP

2AAA 5555

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

FIGURE 6: CE# CONTROLLED PAGE-WRITE CYCLE TIMING DIAGRAM

FIGURE 7: DATA# POLLING TIMING DIAGRAM

307 ILL F05

CE#

OE#

WE#

DDRESS A17-0

DQ 7-0

SW0

AA 55 A0

D ATA VALID

SW1 SW2

BYTE 0 BYTE 1 BYTE 127

TDS

TDH

TBLC TBLCO

TWC

TCP

TOEH

TOES

TCH

TCS

TAH

TAS

5555

Three-Byte Sequence for

Enabling SDP

2AAA 5555

307 ILL F06

CE#

OE#

WE#

TWC + TBLCO

TOE

TOEH

TCE

TOES

D# D

DDRESS A17-0

DQ 7D

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

FIGURE 8: TOGGLE BIT TIMING DIAGRAM

FIGURE 9: SOFTWARE DATA PROTECT DISABLE TIMING DIAGRAM

307 ILL F07.1

CE#

OE#

WE#

TWC + TBLCO

TWO READ CYCLES

WITH SAME OUTPUTS

TOEH TOE TOES

TCE

DDRESS A17-0

DQ6

307 ILL F08.

CE#

OE#

WE#

DDRESS A14-0

DQ 7-0

SW0 SW1 SW2 SW3 SW4 SW5

TBLCO

TBLC

TWC

TWP

55555555

55AA 55 20AA80

Six-Byte Sequence for Disabling

Software Data Protection

2AAA2AAA 55555555

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

FIGURE 10: SOFTWARE CHIP-ERASE TIMING DIAGRAM

FIGURE 11: SOFTWARE ID ENTRY AND READ

307 ILL F09.

CE#

OE#

WE#

DDRESS A14-0

DQ 7-0

SW0 SW1 SW2 SW3 SW4 SW5

TBLCO

TBLC

TSCE

TWP

55555555

55AA 55 10AA80

Six-Byte Code for Software Chip-Erase

2AAA2AAA 55555555

307 ILL F10

CE#

OE#

WE#

DDRESS A14-0

DQ 7-0

SW0 SW1 SW2 DEVICE ID = 10H for SST29EE020

= 12H for SST29LE020/29VE020

TIDA

TAA

TBLC

TWP

5555

55AA BF

DEVICE ID

Three-Byte Sequence

for Software ID Entry

00002AAA 00015555

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

FIGURE 12: SOFTWARE ID EXIT AND RESET

307 ILL F11

CE#

OE#

WE#

DDRESS A14-0

DQ 7-0

SW0 SW1 SW2

TIDA

TBLC

TWP

5555

55AA F0

Three-Byte Sequence

for Software ID Exit and Reset

2AAA5555

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

FIGURE 13: AC INPUT/OUTPUT REFERENCE WAVEFORMS

FIGURE 14: A TEST LOAD EXAMPLE

307 ILL F12

REFERENCE POINTS OUTPUTINPUT

VHT

VLT

VHT

VLT

IHT

VILT

AC test inputs are driven at VIHT (2.4 V) for a logic “1” and VILT (0.4 V) for a logic “0”. Measurement reference points for

inputs and outputs are VHT (2.0 V) and VLT (0.8 V). Input rise and fall times (10% ↔ 90%) ar e <10 ns.

Note: VHT - VHIGH Test

VLT - VLOW Test

VIHT - VINPUT HIGH Test

VILT - VINPUT LOW Test

307 ILL F13

T O TESTER

O DUT

CLRL LOW

RL HIG

VDD

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

FIGURE 15: WRITE ALGORITHM

307 ILL F14

Load Byte

Data

Yes

Byte

Address =

128?

Write

Completed

Increment

Byte Address

By 1

W ait TBLCO

Wait for end of

Write (TWC,

Data# Polling bit

or Toggle bit

operation)

Set Byte

Address = 0

Set Page

Address

Software Data

Protect Write

Command

Start

See Figure 17

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

FIGURE 16: WAIT OPTIONS

307 ILL F15.1

Read a byte

from page

Yes

Does DQ6

match?

Write

Completed

Read same

byte

Page-Write

Initiated

Toggle Bit

W ait TWC

Write

Completed

Page-Write

Initiated

Internal Timer

Read DQ7

(Data for last

byte loaded)

Is DQ7 =

true data?

Write

Completed

Page-Write

Initiated

Data# Polling

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

FIGURE 17: SOFTWARE DATA PROTECTION FLOWCHARTS

307 ILL F16

Write data: AAH

Address: 5555H

oftware Data Protect Enable

Command Sequence

Write data: 55H

Address: 2AAAH

Write data: A0H

Address: 5555H

Wait TWC

Wait TBLCO

SDP Enabled

Load 0 to

128 Bytes of

page data

Optional Page Load

Operation

Write data: AAH

Address: 5555H

Software Data Protect

Disable Command Sequence

Write data: 55H

Address: 2AAAH

Write data: 80H

Address: 5555H

Write data: AAH

Address: 5555H

Wait TWC

Wait TBLCO

SDP Disabled

Write data: 55H

Address: 2AAAH

Write data: 20H

Address: 5555H

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

FIGURE 18: SOFTWARE PRODUCT COMMAND FLOWCHARTS

307 ILL F17

Write data: AAH

Address: 5555H

oftware Product ID Entry

Command Sequence

Write data: 55H

Address: 2AAAH

Pause 10 µs

Write data: 90H

Address: 5555H

Read Software ID

Write data: AAH

Address: 5555H

Software Product ID Exit &

Reset Command Sequence

Write data: 55H

Address: 2AAAH

Pause 10 µs

Write data: F0H

Address: 5555H

Return to normal

operation

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

FIGURE 19: SOFTWARE CHIP-ERASE COMMAND CODES

307 ILL F18

Write data: AAH

Address: 5555H

oftware Chip-Erase

ommand Sequence

Write data: 55H

Address: 2AAAH

Write data: AAH

Address: 5555H

Write data: 55H

Address: 2AAAH

Write data: 10H

Address: 5555H

W ait TSCE

Chip-Erase

to FFH

Write data: 80H

Address: 5555H

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

PRODUCT ORDERING INFORMATION

Environmental Attribute

E = non-Pb

Package Modifier

H = 32 leads or pins

Pa ckage Type

E = TSOP (type 1, die up, 8mm x 20mm)

N = PLCC

P = PDIP

Temperature Range

C = Commercial = 0°C to +70°C

I = Industria l = -40 °C to +85°C

Minimum Endurance

4 = 10,000 cycles

Read Access Speed

200 = 200 ns

120 = 120 ns

Device Density

020 = 2 Mbit

Function

E = Page-Write

Voltage

E = 4.5-5.5V

L = 3.0-3.6V

V = 2.7-3.6V

Product Series

29 = Page-Write Flash

SST 29 xE 020 - 120 - 4C - NH E

XX XX XXXX - XXX -XX- XXX X

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

Valid combinations for SST29EE020

SST29EE020-120-4C-NH SST29EE020-120-4C-EH SST29EE020-120-4C-PH

SST29EE020-120-4C-NHE SST29EE020-120-4C-EHE

SST29EE020-120-4I-NH SST29EE020-120-4I-EH

SST29EE020-120-4I-NHE SST29EE020-120-4I-EHE

Valid combinations for SST29LE020

SST29LE020-200-4C-NH SST29LE020-200-4C-EH

SST29LE020-200-4C-NHE SST29LE020-200-4C-EHE

SST29LE020-200-4I-NH SST29LE020-200-4I-EH

SST29LE020-200-4I-NHE SST29LE020-200-4I-EHE

Valid combinations for SST29VE020

SST29VE020-200-4C-NH SST29VE020-200-4C-EH

SST29VE020-200-4C-NHE SST29VE020-200-4C-EHE

SST29VE020-200-4I-NH SST29VE020-200-4I-EH

SST29VE020-200-4I-NHE SST29VE020-200-4I-EHE

Note: Valid combination s are those products in mass production or will be in mass production. Consult your SST sales

representative to confirm availability of valid combinations and to determine availability of new combinations.

Note: The software Chip-Erase function is not supported by the industrial temperatur e part.

Please contact SST if this function is required in an industrial temperature part.

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

PACKAGING DIAGRAMS

32-LEAD PLASTIC LEAD CHIP CARRIER (PLCC)

SST PACKAGE CODE: NH

.040

.030

.021

.013 .530

.490

.095

.075

.140

.125

.032

.026

.032

.026

.029

.023

.453

.447

.553

.547

.595

.585

.495

.485 .112

.106

.042

.048

.042

.015 Min.

T OP VIEW SIDE VIEW BO TT OM VIEW

1232

.400

BSC

32-plcc-NH-

ote: 1. Complies with JEDEC publication 95 MS-016 AE dimensions, although some dimensions may be more stringent.

2. All linear dimensions are in inches (max/min).

3. Dimensions do not include mold flash. Maximum allowable mold flash is .008 inches.

4. Coplanarity: 4 mils.

.050

BSC

.050

BSC

Optional

Pin #1

dentifier .020 R.

MAX. R.

x 30˚

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

32-LEAD THIN SMALL OUTLINE PACKAGE (TSOP) 8MM X 20MM

SST PACKAGE CODE: EH

0.15

0.05

20.20

19.80

18.50

18.30

0.70

0.50

8.10

7.90 0.27

0.17

1.05

0.95

32-tsop-EH-7

ote: 1.Complies with JEDEC publication 95 MO-142 BD dimensions,

although some dimensions may be more stringent.

2.All linear dimensions are in millimeters (max/min).

3.Coplanarity: 0.1 mm

4.Maximum allowable mold flash is 0.15 mm at the package ends, and 0.25mm between leads.

Pin # 1 Identifier

0.50

BSC

1mm

1.20

max.

DETAIL

0.70

0.50

0˚-

5˚

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EOL Product Data Sheet

2 Mbit Page-Write EEPROM

SST29EE020 / SST29LE020 / SST29VE020

32-PIN PLASTIC DUAL IN-LINE PINS (PDIP)

SST PACKAGE CODE: PH

TABLE 14: REVISION HISTORY

Number Description Date

06 •2002 Data Book May 2002

07 •WH package is no longer offered

•Removed 15 0 ns Read Access Time for SST29EE020

•Removed 25 0 ns Read Access Time for SST29LE020 and SST29VE020

•Clarified IDD Write to be Program and Er ase in Tables 5 and 6 on page 9

Mar 2003

08 •2004 Data Book

•Added non-Pb MPNs and removed footnote (See page 25) Nov 2003

09 •End-of-Life product data sheet for all parts in S71062

•Recommended replacement part for SST29VE/LE020 is SST29VF020 (S71160)

•Recommended replacement part for SST29EE020 is SST29SF020 (S71160)

Aug 2005

32-pdip-PH-3

Pin #1 Identifier

Base

Plane

eating

Plane

Note: 1. Complies with JEDEC publication 95 MO-015 AP dimensions, although some dimensions may be more stringent.

2. All linear dimensions are in inches (max/min).

3. Dimensions do not include mold flash. Maximum allowable mold flash is .010 inches.

.200

.170

7˚

4 PLCS.

.600 BSC

.100 BSC .150

.120

.022

.016

.065

.045

.080

.070

.050

.015

.075

.065 1.655

1.645

.012

.008

5˚

.625

.600

.550

.530

Silicon Storage Technology, Inc. • 1171 Sonora Court • Sunnyvale, CA 94086 • Telephone 408-735-91 10 • Fax 408-735-9036

www.SuperFlash.com or www.sst.com

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