Data Sheet
©2010 Greenliant Systems, Ltd. S71160-15-00005/10
www.greenliant.com
2 Mbit / 4 Mbit (x8) Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
FEATURES:
Organized as 256K x8 / 512K x8
Single Voltage Read and Write Operations
4.5-5.5V for GLS29SF020/040
2.7-3.6V for GLS29VF020/040
Superior Reliability
Endurance: 100,000 Cycles (typical)
Greater than 100 years Data Retention
Low Power Consumption:
Active Current: 10 mA (typical)
Standby Current:
30 µA (typical) for GLS29SF020/040
1 µA (typical) for GLS29VF020/040
Sector-Erase Capability
Uniform 128 Byte sectors
Fast Read Access Time:
55 ns for GLS29SF020/040
70 ns for GLS29VF020/040
Latched Address and Data
Fast Erase and Byte-Program:
Sector-Erase Time: 18 ms (typical)
Chip-Erase Time: 70 ms (typical)
Byte-Program Time: 14 µs (typical)
Chip Rewrite Time:
4 seconds (typical) for GLS29SF/VF020
8 seconds (typical) for GLS29SF/VF040
Automatic Write Timing
Internal VPP Generation
End-of-Write Detection
Toggle Bit
Data# Polling
TTL I/O Compatibility for GLS29SF020/040
CMOS I/O Compatibility for GLS29VF020/040
JEDEC Standard
Flash EEPROM Pinouts and command sets
Packages Available
32-lead PLCC
32-lead TSOP (8mm x 14mm)
All non-Pb (lead-free) devices are RoHS compliant
PRODUCT DESCRIPTION
The GLS29SF020/040 and GLS29VF020/040 are 256K
x8 / 512K x8 CMOS Small-Sector Flash (SSF) manufac-
tured with high-performance SuperFlash technology. The
split-gate cell design and thick-oxide tunneling injector
attain better reliability and manufacturability compared with
alternate approaches. The GLS29SF020/040 devices
write (Program or Erase) with a 4.5-5.5V power supply.
The GLS29VF020/040 devices write (Program or Erase)
with a 2.7-3.6V power supply. These devices conform to
JEDEC standard pin assignments for x8 memories.
Featuring high performance Byte-Program, the
GLS29SF020/040 and GLS29VF020/040 devices pro-
vide a maximum Byte-Program time of 20 µsec. To protect
against inadvertent write, they have on-chip hardware and
Software Data Protection schemes. Designed, manufac-
tured, and tested for a wide spectrum of applications, these
devices are offered with a guaranteed endurance of at
least 10,000 cycles. Data retention is rated at greater than
100 years.
The GLS29SF020/040 and GLS29VF020/040 devices
are suited for applications that require convenient and eco-
nomical updating of program, configuration, or data mem-
ory. For all system applications, they significantly improve
performance and reliability, while lowering power consump-
tion. They inherently use less energy during Erase and
Program than alternative flash technologies. The total
energy consumed is a function of the applied voltage, cur-
rent, and time of application. Since for any given voltage
range, the SuperFlash technology uses less current to pro-
gram and has a shorter erase time, the total energy con-
sumed during any Erase or Program operation is less than
alternative flash technologies. They also improve flexibility
while lowering the cost for program, data, and configuration
storage applications.
The SuperFlash technology provides fixed Erase and Pro-
gram times independent of the number of Erase/Program
cycles that have occurred. Therefore, the system software
or hardware does not have to be modified or de-rated as is
necessary with alternative flash technologies, whose Erase
and Program times increase with accumulated Erase/Pro-
gram cycles.
GLS29SF/VF020 / 0402Mb / 4Mb (x8)
Byte-Program, Small-Sector flash memories
2
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
To meet high density, surface mount requirements, the
GLS29SF020/040 and GLS29VF020/040 devices are
offered in 32-lead PLCC and 32-lead TSOP packages. The
pin assignments are shown in Figures 2 and 3.
Device Operation
Commands are used to initiate the memory operation func-
tions of the device. Commands are written to the device
using standard microprocessor write sequences. A com-
mand is written by asserting WE# low while keeping CE#
low. The address bus is latched on the falling edge of WE#
or CE#, whichever occurs last. The data bus is latched on
the rising edge of WE# or CE#, whichever occurs first.
Read
The Read operation of the GLS29SF020/040 and
GLS29VF020/040 devices are controlled by CE# and
OE#, both have to be low for the system to obtain data
from the outputs. CE# is used for device selection. When
CE# is high, the chip is deselected and only standby power
is consumed. OE# is the output control and is used to gate
data from the output pins. The data bus is in high imped-
ance state when either CE# or OE# is high. Refer to the
Read cycle timing diagram in Figure 4 for further details.
Byte-Program Operation
The GLS29SF020/040 and GLS29VF020/040 devices
are programmed on a byte-by-byte basis. Before program-
ming, the sector where the byte exists must be fully erased.
The Program operation is accomplished in three steps.
The first step is the three-byte load sequence for Software
Data Protection. The second step is to load byte address
and byte data. During the Byte-Program operation, the
addresses are latched on the falling edge of either CE# or
WE#, whichever occurs last. The data is latched on the ris-
ing edge of either CE# or WE#, whichever occurs first. The
third step is the internal Program operation which is initi-
ated after the rising edge of the fourth WE# or CE#, which-
ever occurs first. The Program operation, once initiated, will
be completed, within 20 µs. See Figures 5 and 6 for WE#
and CE# controlled Program operation timing diagrams
and Figure 16 for flowcharts. During the Program opera-
tion, the only valid reads are Data# Polling and Toggle Bit.
During the internal Program operation, the host is free to
perform additional tasks. Any commands written during the
internal Program operation will be ignored.
Sector-Erase Operation
The Sector-Erase operation allows the system to erase the
device on a sector-by-sector basis. The GLS29SF020/
040 and GLS29VF020/040 offer Sector-Erase mode. The
sector architecture is based on uniform sector size of 128
Bytes. The Sector-Erase operation is initiated by executing
a six-byte command sequence with Sector-Erase com-
mand (20H) and sector address (SA) in the last bus cycle.
The sector address is latched on the falling edge of the
sixth WE# pulse, while the command (20H) is latched on
the rising edge of the sixth WE# pulse. The internal Erase
operation begins after the sixth WE# pulse. The End-of-
Erase operation can be determined using either Data#
Polling or Toggle Bit methods. For timing waveforms, see
Figure 9. Any commands issued during the Sector-Erase
operation are ignored.
Chip-Erase Operation
The GLS29SF020/040 and GLS29VF020/040 devices
provide a Chip-Erase operation, which allows the user to
erase the entire memory array to the “1s” state. This is use-
ful when the entire device must be quickly erased.
The Chip-Erase operation is initiated by executing a six-
byte Software Data Protection command sequence with
Chip-Erase command (10H) with address 555H in the last
byte sequence. The internal Erase operation begins with
the rising edge of the sixth WE# or CE#, whichever occurs
first. During the internal Erase operation, the only valid read
is Toggle Bit or Data# Polling. See Table 4 for the com-
mand sequence, Figure 10 for the timing diagram, and Fig-
ure 19 for the flowchart. Any commands written during the
Chip-Erase operation will be ignored.
Write Operation Status Detection
The GLS29SF020/040 and GLS29VF020/040 devices
provide two software means to detect the completion of a
Write (Program or Erase) 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 enabled after
the rising edge of WE# which initiates the internal Pro-
gram or Erase operation.
The actual completion of the nonvolatile write is asyn-
chronous with the system; therefore, either a Data# Poll-
ing 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 conflict with either DQ7 or DQ6. In order to pre-
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
3
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
vent spurious rejection, if an erroneous result occurs, the
software 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 rejection is valid.
Data# Polling (DQ7)
When the GLS29SF020/040 and GLS29VF020/040
devices are in the internal Program operation, any
attempt to read DQ7 will produce the complement of the
true data. Once the Program operation is completed,
DQ7 will produce true data. Note that even though DQ7
may have valid data immediately following the comple-
tion of an internal Write operation, the remaining data
outputs may still be invalid: valid data on the entire data
bus will appear in subsequent successive Read cycles
after an interval of 1 µs. During internal Erase operation,
any attempt to read DQ7 will produce a ‘0’. Once the
internal Erase operation is completed, DQ7 will produce
a ‘1’. The Data# Polling is valid after the rising edge of
fourth WE# (or CE#) pulse for Program operation. For
Sector- or Chip-Erase, the Data# Polling is valid after the
rising edge of sixth WE# (or CE#) pulse. See Figure 7 for
Data# Polling timing diagram and Figure 17 for a flow-
chart.
Toggle Bit (DQ6)
During the internal Program or Erase operation, any con-
secutive attempts to read DQ6 will produce alternating ‘0’s
and ‘1’s, i.e., toggling between 0 and 1. When the internal
Program or Erase operation is completed, the toggling will
stop. The device is then ready for the next operation. The
Toggle Bit is valid after the rising edge of fourth WE# (or
CE#) pulse for Program operation. For Sector or Chip-
Erase, the Toggle Bit is valid after the rising edge of sixth
WE# (or CE#) pulse. See Figure 8 for Toggle Bit timing dia-
gram and Figure 17 for a flowchart.
Data Protection
The GLS29SF020/040 and GLS29VF020/040 devices
provide both hardware and software 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 for GLS29SF020/
040. The Write operation is inhibited when VDD is less than
1.5V. for GLS29VF020/040.
Write Inhibit Mode: Forcing OE# low, CE# high, or WE#
high will inhibit the Write operation. This prevents inadver-
tent writes during power-up or power-down.
Software Data Protection (SDP)
The GLS29SF020/040 and GLS29VF020/040 provide
the JEDEC approved Software Data Protection scheme for
all data alteration operations, i.e., Program and Erase. Any
Program operation requires the inclusion of a series of
three- byte sequence. The three-byte load sequence is
used to initiate the Program operation, providing optimal
protection from inadvertent Write operations, e.g., during
the system power-up or power-down. Any Erase operation
requires the inclusion of a six-byte load sequence. These
devices are shipped with the Software Data Protection per-
manently enabled. The specific software command codes
are shown in Table 4. During SDP command sequence,
invalid commands will abort the device to read mode,
within TRC.
Product Identification
The Product Identification mode identifies the devices as
GLS29SF020, GLS29SF040 and GLS29VF020,
GLS29VF040 and manufacturer as Greenliant. This mode
may be accessed by software operations. Users may use
the Software Product Identification operation to identify the
part (i.e., using the device ID) when using multiple manu-
facturers in the same socket. For details, see Table 4 for
4
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
software operation, Figure 11 for the Software ID Entry and
Read timing diagram, and Figure 18 for the Software ID
Entry command sequence flowchart.
Product Identification Mode Exit/Reset
In order to return to the standard Read mode, the Software
Product Identification mode must be exited. Exit is accom-
plished by issuing the Software ID Exit command
sequence, which returns the device to the Read operation.
Please note that the Software ID Exit command is ignored
during an internal Program or Erase operation. See Table 4
for software command codes, Figure 12 for timing wave-
form, and Figure 18 for a flowchart.
FIGURE 1: Functional Block Diagram
TABLE 1: Product Identification
Address Data
Manufacturer’s ID 0000H BFH
Device ID
GLS29SF020 0001H 24H
GLS29VF020 0001H 25H
GLS29SF040 0001H 13H
GLS29VF040 0001H 14H
T1.3 1160
Y-Decoder
I/O Buffers and Data Latches
1160 B1.0
Address Buffers & Latches
X-Decoder
DQ7 - DQ0
Memory
Address
OE#
CE#
WE#
SuperFlash
Memory
Control Logic
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
5
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
FIGURE 2: Pin Assignments for 32-lead PLCC
FIGURE 3: Pin Assignments for 32-lead TSOP (8mm x 14mm)
5
6
7
8
9
10
11
12
13
29
28
27
26
25
24
23
22
21
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
A14
A13
A8
A9
A11
OE#
A10
CE#
DQ7
A14
A13
A8
A9
A11
OE#
A10
CE#
DQ7
4 3 2 1 32 31 30
A12
A15
A16
NC
VDD
WE#
A17
A12
A15
A16
A18
VDD
WE#
A17
32-lead PLCC
To p V i e w
1160 32-plcc NH P1.2
14 15 16 17 18 19 20
DQ1
DQ2
VSS
DQ3
DQ4
DQ5
DQ6
DQ1
DQ2
VSS
DQ3
DQ4
DQ5
DQ6
GLS29SF/VF020GLS29SF/VF040 GLS29SF/VF020 GLS29SF/VF040
GLS29SF/VF020GLS29SF/VF040 GLS29SF/VF020 GLS29SF/VF040
A11
A9
A8
A13
A14
A17
WE#
VDD
NC
A16
A15
A12
A7
A6
A5
A4
A11
A9
A8
A13
A14
A17
WE#
VDD
A18
A16
A15
A12
A7
A6
A5
A4
GLS29SF/VF020GLS29SF/VF040 GLS29SF/VF020 GLS29SF/VF04
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
OE#
A10
CE#
DQ7
DQ6
DQ5
DQ4
DQ3
VSS
DQ2
DQ1
DQ0
A0
A1
A2
A3
OE#
A10
CE#
DQ7
DQ6
DQ5
DQ4
DQ3
VSS
DQ2
DQ1
DQ0
A0
A1
A2
A3
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
1160 32-tsop WH P2.2
Standard Pinout
Top View
Die Up
6
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
TABLE 2: Pin Description
Symbol Pin Name Functions
AMS1-A0
1. AMS = Most significant address
AMS = A17 for GLS29SF/VF020 and A18 for GLS29SF/VF040
Address Inputs To provide memory addresses. During Sector-Erase AMS-A8 address lines will select the
sector.
DQ7-DQ0Data Input/output To output data during Read cycles and receive input data during Write cycles.
Data is internally 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 power supply voltage: 4.5-5.5V for GLS29SF020/040
2.7-3.6V for GLS29VF020/040
VSS Ground
NC No Connection Pin not connected internally
T2.5 1160
TABLE 3: Operation Modes Selection
Mode CE# OE# WE# DQ Address
Read VIL VIL VIH DOUT AIN
Program VIL VIH VIL DIN AIN
Erase VIL VIH VIL X1
1. X can be VIL or VIH, but no other value.
Sector address,
XXH for Chip-Erase
Standby VIH X X High Z X
Write Inhibit X VIL X High Z/ DOUT X
XXV
IH High Z/ DOUT X
Product Identification
Software Mode VIL VIL VIH See Table 4
T3.4 1160
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
7
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
TABLE 4: Software Command Sequence
Command
Sequence
1st Bus
Write Cycle
2nd Bus
Write Cycle
3rd Bus
Write Cycle
4th Bus
Write Cycle
5th Bus
Write Cycle
6th Bus
Write Cycle
Addr1Data Addr1Data Addr1Data Addr1Data Addr1Data Addr1Data
Byte-Program 555H AAH 2AAH 55H 555H A0H BA2Data
Sector-Erase 555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H SAX320H
Chip-Erase 555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H 555H 10H
Software ID Entry4,5 555H AAH 2AAH 55H 555H 90H
Software ID Exit6XXH F0H
Software ID Exit6555H AAH 2AAH 55H 555H F0H
T4.7 1160
1. Address format A14-A0 (Hex),
Addresses A15-AMS can be VIL or VIH, but no other value, for the Command sequence for GLS29SF/VF020/040.
AMS = Most significant address
AMS = A17 for GLS29SF/VF020 and A18 for GLS29SF/VF040.
2. BA = Program Byte address
3. SAX for Sector-Erase; uses AMS-A7 address lines for GLS29SF/VF020/040
4. The device does not remain in Software Product ID mode if powered down.
5. With AMS-A1 = 0; Greenliant Manufacturer’s ID = BFH, is read with A0 = 0,
GLS29SF020 Device ID = 24H, is read with A0 = 1
GLS29VF020 Device ID = 25H, is read with A0 = 1
GLS29SF040 Device ID = 13H, is read with A0 = 1
GLS29VF040 Device ID = 14H, is read with A0 = 1
6. Both Software ID Exit operations are equivalent
8
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
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 13.2V
Package Power Dissipation Capability (TA = 25°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0W
Through Hole Lead Soldering Temperature (10 Seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C
Surface Mount Solder Reflow Temperature1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C for 10 seconds
Output Short Circuit Current2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
1. Excluding certain with-Pb 32-PLCC units, all packages are 260°C capable in both non-Pb and with-Pb solder versions.
Certain with-Pb 32-PLCC package types are capable of 240°C for 10 seconds; please consult the factory for the latest information.
2. Outputs shorted for no more than one second. No more than one output shorted at a time.
Operating Range for GLS29SF020/040
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 GLS29VF020/040
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 . . . . . . . . . . . . . . 5 ns
Output Load . . . . . . . . . . . . . . . . . . . . . CL = 30 pF for 55 ns
Output Load . . . . . . . . . . . . . . . . . . . . . CL = 100 pF for 70 ns
See Figures 13, 14, and 15
TABLE 5: DC Operating Characteristics VDD = 4.5-5.5V for GLS29SF020/040
Symbol Parameter
Limits
Test ConditionsMin Max Units
IDD Power Supply Current Address input=VIL/VIH, at f=1/TRC Min
VDD=VDD Max
Read 25 mA CE#=OE#=VIL, WE#=VIH, all I/Os open
Write 30 mA CE#=WE#=VIL, OE#=VIH
ISB1 Standby VDD Current (TTL input) 3 mA CE#=VIH, VDD=VDD Max
ISB2 Standby VDD Current (CMOS input) 100 µA CE#=VIHC, 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
VIHC Input High Voltage (CMOS) VDD-0.3 V VDD=VDD Max
VOL Output Low Voltage 0.4 V IOL=2.1 µA, VDD=VDD Min
VOH Output High Voltage 2.4 V IOH=-400 µA, VDD=VDD Min
T5.7 1160
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
9
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
10
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
TABLE 6: DC Operating Characteristics VDD = 2.7-3.6V for GLS29VF020/040
Symbol Parameter
Limits
Test ConditionsMin Max Units
IDD Power Supply Current Address input=VIL/VIH, at f=1/TRC Min
VDD=VDD Max
Read 25 mA CE#=OE#=VIL, WE#=VIH, all I/Os open
Write 30 mA CE#=WE#=VIL, OE#=VIH
ISB Standby VDD Current 30 µA CE#=VIHC, 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 0.7VDD VV
DD=VDD Max
VIHC Input High Voltage (CMOS) VDD-0.3 V VDD=VDD Max
VOL Output Low Voltage 0.2 V IOL=100 µA, VDD=VDD Min
VOH Output High Voltage VDD-0.2 V IOH=-100 µA, VDD=VDD Min
T6.9 1160
TABLE 7: Recommended System Power-up Timings
Symbol Parameter Minimum Units
TPU-READ1Power-up to Read Operation 100 µs
TPU-WRITE1Power-up to Program/Erase Operation 100 µs
T7.1 1160
1. This parameter is measured only for initial qualification and after a design or process change that could affect this parameter.
TABLE 8: Capacitance (TA = 25°C, f=1 Mhz, other pins open)
Parameter Description Test Condition Maximum
CI/O1I/O Pin Capacitance VI/O = 0V 12 pF
CIN1Input Capacitance VIN = 0V 6 pF
T8.1 1160
1. This parameter is measured only for initial qualification and after a design or process change that could affect this parameter.
TABLE 9: Reliability Characteristics
Symbol Parameter Minimum Specification Units Test Method
NEND1Endurance 10,000 Cycles JEDEC Standard A117
TDR1Data Retention 100 Years JEDEC Standard A103
ILTH1Latch Up 100 + IDD mA JEDEC Standard 78
T9.2 1160
1. This parameter is measured only for initial qualification and after a design or process change that could affect this parameter.
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
11
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
AC CHARACTERISTICS
TABLE 10: Read Cycle Timing Parameters
VDD = 4.5-5.5V for GLS29SF020/040 and 2.7-3.6V for GLS29VF020/040
Symbol Parameter
GLS29SF020/040-55 GLS29VF020/040-70
UnitsMin Max Min Max
TRC Read Cycle Time 55 70 ns
TCE Chip Enable Access Time 55 70 ns
TAA Address Access Time 55 70 ns
TOE Output Enable Access Time 30 35 ns
TCLZ1
1. This parameter is measured only for initial qualification and after a design or process change that could affect this parameter.
CE# Low to Active Output 0 0 ns
TOLZ1OE# Low to Active Output 0 0 ns
TCHZ1CE# High to High-Z Output 20 25 ns
TOHZ1OE# High to High-Z Output 20 25 ns
TOH1Output Hold from Address Change 00ns
T10.10 1160
TABLE 11: Program/Erase Cycle Timing Parameters
VDD = 4.5-5.5V for GLS29SF020/040 and 2.7-3.6V for GLS29VF020/040
Symbol Parameter Min Max Units
TBP Byte-Program Time 20 µs
TAS Address Setup Time 0 ns
TAH Address Hold Time 30 ns
TCS WE# and CE# Setup Time 0 ns
TCH WE# and CE# Hold Time 0 ns
TOES OE# High Setup Time 0 ns
TOEH OE# High Hold Time 10 ns
TCP CE# Pulse Width 40 ns
TWP WE# Pulse Width 40 ns
TWPH1
1. This parameter is measured only for initial qualification and after a design or process change that could affect this parameter.
WE# Pulse Width High 30 ns
TCPH1CE# Pulse Width High 30 ns
TDS Data Setup Time 40 ns
TDH1Data Hold Time 0 ns
TIDA1Software ID Access and Exit Time 150 ns
TSE Sector-Erase 25 ms
TSCE Chip-Erase 100 ms
T11.9 1160
12
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
FIGURE 4: Read Cycle Timing Diagram
FIGURE 5: WE# Controlled Program Cycle Timing Diagram
1160 F03.1
ADDRESS AMS-0
DQ7-0
WE#
OE#
CE#
TCE
TRC TAA
TOE
TOLZ
VIH
HIGH-Z
TCLZ TOH TCHZ
HIGH-Z
D ATA V ALIDD ATA V ALID
TOHZ
Note: AMS = Most significant address
AMS = A17 for GLS29SF/VF020 and A18 for GLS29SF/VF040
1160 F04.1
ADDRESS AMS-0
DQ7-0
TDH
TWPH TDS
TWP
TAH
TAS
TCH
TCS
CE#
SW0 SW1 SW2
555 2AA 555 ADDR
AA 55 A0 DATA
BYTE
(ADDR/DATA)
OE#
WE#
TBP
INTERNAL PROGRAM OPERATION STARTS
Note: AMS = Most significant address
AMS = A17 for GLS29SF/VF020 and A18 for GLS29SF/VF040
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
13
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
FIGURE 6: CE# Controlled Program Cycle Timing Diagram
FIGURE 7: Data# Polling Timing Diagram
1160 F05.1
ADDRESS AMS-0
DQ7-0
TDH
TCPH TDS
TCP
TAH
TAS
TCH
TCS
WE#
SW0 SW1 SW2
555 2AA 555 ADDR
AA 55 A0 DATA
INTERNAL PROGRAM OPERATION STARTS
BYTE
(ADDR/DATA)
OE#
CE#
TBP
Note: AMS = Most significant address
AMS = A17 for GLS29SF/VF020 and A18 for GLS29SF/VF040
1160 F06.1
ADDRESS AMS-0
DQ7DD# D# D
WE#
OE#
CE#
TOEH
TOE
TCE
TOES
14
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
FIGURE 8: Toggle Bit Timing Diagram
FIGURE 9: WE# Controlled Sector-Erase Timing Diagram
1160 F07.1
ADDRESS AMS-0
DQ6
WE#
OE#
CE#
TOE
TOEH
TCE
TOES
TWO READ CYCLES
WITH SAME OUTPUTS
Note: AMS = Most significant address
AMS = A17 for GLS29SF/VF020 and A18 for GLS29SF/VF040
Note: This device also supports CE# controlled Sector-Erase operation The WE# and CE# signals are interchangeable as
long as minimum timings are met. (See Table 11)
AMS = Most significant address
AMS = A17 for GLS29SF/VF020 and A18 for GLS29SF/VF040
SAX = Sector Address.
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
15
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
FIGURE 10: WE# Controlled Chip-Erase Timing Diagram
FIGURE 11: Software ID Entry and Read
1160 F09.1
ADDRESS AMS-0
DQ7-0
WE#
SW0 SW1 SW2 SW3 SW4 SW5
555 2AA 2AA555 555
55 1055AA 80 AA
555
OE#
CE#
SIX-BYTE CODE FOR CHIP-ERASE
TSCE
TWP
Note: This device also supports CE# controlled Chip-Erase operation The WE# and CE# signals are interchangeable as
long as minimum timings are met. (See Table 11)
AMS = Most significant address
AMS = A17 for GLS29SF/VF020 and A18 for GLS29SF/VF040
1160 F10.1
ADDRESS A14-0
DQ7-0
WE#
SW1SW0 SW2
Device ID
555 2AA 555 0000 0001
OE#
CE#
Three-Byte Sequence for
Software ID Entry
TWP
TWPH TAA
BF55AA 90
TIDA
Note: Device ID = 24H for GLS29SF020, 13H for GLS29SF040
25H for GLS29VF020, 14H for GLS29VF040
16
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
FIGURE 12: Software ID Exit and Reset
1160 F11.1
ADDRESS A14-0
DQ7-0
TIDA
TWP
TWHP
WE#
SW0 SW1 SW2
555 2AA 555
Three-Byte Sequence for
Sofware ID Exit and Reset
OE#
CE#
AA 55 F0
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
17
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
FIGURE 13: AC Input/Output Reference Waveforms for GLS29SF020/040
FIGURE 14: AC Input/Output Reference Waveforms for GLS29VF020/040
1160 F12.0
REFERENCE POINTS OUTPUTINPUT VIT
VIHT
VILT
VOT
AC test inputs are driven at VIHT (3.0V) for a logic “1” and VILT (0V) for a logic “0”. Measurement reference points for
inputs and outputs are VIT (1.5 VDD) and VOT (1.5 VDD). Input rise and fall times (10% 90%) are <10 ns.
Note: VIT - VINPUT Te s t
VOT - VOUTPUT Test
VIHT - VINPUT HIGH Test
VILT - VINPUT LOW Test
1160 F12.0
REFERENCE POINTS OUTPUTINPUT VIT
VIHT
VILT
VOT
AC test inputs are driven at VIHT (0.9 VDD) for a logic “1” and VILT (0.1 VDD) for a logic “0”. Measurement reference points
for inputs and outputs are VIT (0.5 VDD) and VOT (0.5 VDD). Input rise and fall times (10% 90%) are <5 ns.
Note: VIT - VINPUT Te st
VOT - VOUTPUT Test
VIHT - VINPUT HIGH Test
VILT - VINPUT LOW Test
18
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
FIGURE 15: Test Load Examples
1160 F14a.0
GLS29SF040
TO TESTER
TO DUT
CLRL LOW
RL HIGH
VDD
1160 F14b.0
TO TESTER
T
O DUT
CL
GLS29VF040
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
19
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
FIGURE 16: Byte-Program Algorithm
1160 F15.0
Start
Load data: AAH
Address: 555H
Load data: 55H
Address: 2AAH
Load data: A0H
Address: 555H
Load Byte
Address/Byte
Data
Wait for end of
Program (TBP,
Data# Polling
bit, or Toggle bit
operation)
Program
Completed
20
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
FIGURE 17: Wait Options
1160 F16.0
W ait TBP,
TSCE, or TSE
Byte-
Program/Erase
Initiated
Internal Timer Toggle Bit
Yes
Yes
No
No
Program/Erase
Completed
Does DQ6
match?
Read same
byte
Data# Polling
Program/Erase
Completed
Program/Erase
Completed
Read byte
Is DQ7 =
true data?
Read DQ7
Byte-
Program/Erase
Initiated
Byte-
Program/Erase
Initiated
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
21
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
FIGURE 18: Software ID Command Flowcharts
1160 F17.0
Load data: AAH
Address: 555H
Software ID Entry
Command Sequence
Load data: 55H
Address: 2AAH
Load data: 90H
Address: 555H
W ait TIDA
Read Software ID
Load data: AAH
Address: 555H
Software ID Exit &
Reset Command Sequence
Load data: 55H
Address: 2AAH
Load data: F0H
Address: 555H
Load data: F0H
Address: XXH
Return to normal
operation
W ait TIDA
W ait TIDA
Return to normal
operation
22
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
FIGURE 19: Erase Command Sequence
1160 F18.0
Load data: AAH
Address: 555H
Chip-Erase
C
ommand Sequence
Load data: 55H
Address: 2AAH
Load data: 80H
Address: 555H
Load data: 55H
Address: 2AAH
Load data: 10H
Address: 555H
Load data: AAH
Address: 555H
W ait TSCE
Chip erased
to FFH
Load data: AAH
Address: 555H
Sector-Erase
Command Sequence
Load data: 55H
Address: 2AAH
Load data: 80H
Address: 555H
Load data: 55H
Address: 2AAH
Load data: 20H
Address: SAX
Load data: AAH
Address: 555H
W ait TSE
Sector erased
to FFH
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
23
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
PRODUCT ORDERING INFORMATION
Device Speed Suffix1 Suffix2
GLS29xFxxx - XXX -XX-XXX
Environmental Attribute
E1 = non-Pb
Package Modifier
H = 32 leads
Package Type
N = PLCC
W = TSOP (type 1, die up, 8mm x 14mm)
Temperature Range
C = Commercial = 0°C to +70°C
I = Industrial = -40°C to +85°C
Minimum Endurance
4 = 10,000 cycles
Read Access Speed
55 = 55 ns
70 = 70 ns
Device Density
040 = 4 Mbit
020 = 2 Mbit
Function
F = Chip- or Sector-Erase
Byte-Program
Voltage
S = 4.5-5.5V
V = 2.7-3.6V
1. Environmental suffix “E” denotes non-Pb solder.
Greenliant non-Pb solder devices are “RoHS Compliant”.
24
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
Valid combinations for GLS29SF020
GLS29SF020-55-4C-NHE GLS29SF020-55-4C-WHE
GLS29SF020-55-4I-NHE GLS29SF020-55-4I-WHE
Valid combinations for GLS29VF020
GLS29VF020-70-4C-NHE GLS29VF020-70-4C-WHE
GLS29VF020-70-4I-NHE GLS29VF020-70-4I-WHE
Valid combinations for GLS29SF040
GLS29SF040-55-4C-NH GLS29SF040-55-4C-WH
GLS29SF040-55-4C-NHE GLS29SF040-55-4C-WHE
GLS29SF040-55-4I-NH GLS29SF040-55-4I-WH
GLS29SF040-55-4I-NHE GLS29SF040-55-4I-WHE
Valid combinations for GLS29VF040
GLS29VF040-70-4C-NH GLS29VF040-70-4C-WH
GLS29VF040-70-4C-NHE GLS29VF040-70-4C-WHE
GLS29VF040-70-4I-NH GLS29VF040-70-4I-WH
GLS29VF040-70-4I-NHE GLS29VF040-70-4I-WHE
Note: Valid combinations are those products in mass production or will be in mass production. Consult your Greenliant sales
representative to confirm availability of valid combinations and to determine availability of new combinations.
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
25
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
PACKAGING DIAGRAMS
FIGURE 20: 32-lead Plastic Lead Chip Carrier (PLCC)
Greenliant 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
.048
.042
.015 Min.
T OP VIEW SIDE VIEW BO TT OM VIEW
1232
.400
BSC
32-plcc-NH
-3
N
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
I
dentifier .020 R.
MAX. R.
x 30°
© 2010 Greenliant Systems, Ltd. All rights reserved.
Greenliant, the Greenliant logo and NANDrive are trademarks of Greenliant Systems, Ltd.
SSF is a trademark and SuperFlash is a registered trademark of Silicon Storage Technology, Inc., a wholly owned subsidiary of
Microchip Technology Inc.
26
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
FIGURE 21: 32-lead Thin Small Outline Package (TSOP) 8mm x 14mm
Greenliant Package Code: WH
32-tsop-WH
-7
N
ote: 1. Complies with JEDEC publication 95 MO-142 BA 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 0.25 mm between leads.
1.20
max.
1mm
Pin # 1 Identifier
12.50
12.30
14.20
13.80
0.70
0.50
8.10
7.90 0.27
0.17
0.50
BSC
1.05
0.95
0.15
0.05
0.70
0.50
0°- 5°
DETAIL
Data Sheet
2 Mbit / 4 Mbit Small-Sector Flash
GLS29SF020 / GLS29SF040
GLS29VF020 / GLS29VF040
27
©2010 Greenliant Systems, Ltd. S71160-15-000 05/10
TABLE 12: Revision History
Number Description Date
05 2002 Data Book May 2002
06 Removed 512 Kbit, 1 Mbit, and 2 Mbit parts
Commercial temperature and 70 ns parts removed
PH package is no longer offered
Part number changes - see page 24 for additional information
Changes to Tables 5 and 6 on page 8 and page 10:
Clarified Test Conditions for Power Supply Current and Read parameters
Clarified IDD Write to be Program and Erase
Corrected IDD Program and Erase from 20 mA to 30 mA
Corrected IDD Read from 20 mA to 25 mA
Clarified measurement reference points VIT and VOT to be 1.5V instead of 1.5VDD
Corrected the VOL test condition IOL to be 2.1 mA instead of 2.1 µA in Table 5 on page 8
Mar 2003
07 Corrected the Test Conditions for the Read Parameter in Table 5 on page 8 Apr 2003
08 Added Commercial temperatures for all packages (See page 24 for details) Aug 2003
09 2004 Data Book
Changed status to “Data Sheet”
Dec 2003
10 Added 70 ns technical data and MPNs for SST29VF040 only Feb 2004
11 Added RoHS compliance information on page 1 and in the
“Product Ordering Information” on page 23
Reinstated 512 Kbit, 1 Mbit, and 2 Mbit devices and MPNs (excluding the PDIP pack-
age)
Removed 55 ns technical data and MPNs for SST29VF040
Added non-Pb MPNs for all devices
Clarified the solder temperature profile under “Absolute Maximum Stress Ratings” on
page 8
Mar 2005
12 Removed all entries related to SST29SF/VF512 and SST29SF/VF010
Removed leaded parts for 020 products.
Nov 2005
13 Changed IDD Read from 20mA to 25mA, and Changed IDD Write from 20mA to 30mA in
Table 5 on page 8 and Table 6 on page 10
Oct 2006
14 Changed ISB from 15 to 30 µA in Table 6 on page 10. Oct 2008
15 Transferred from SST to Greenliant May 2010
© 2010 Greenliant Systems, Ltd. All rights reserved.
Greenliant, the Greenliant logo and NANDrive are trademarks of Greenliant Systems, Ltd.
All trademarks and registered trademarks are the property of their respective owners.
These specifications are subject to change without notice.
SSF is a trademark and SuperFlash is a registered trademark of Silicon Storage Technology, Inc., a wholly owned subsidiary of
Microchip Technology Inc.