512 Kbit / 1 Mbit / 2 Mbit / 4 Mbit High Speed Multi-Purpose Flash
SST39LH512 / SST39LH010 / SST39LH020 / SST39LH040
Advance Information
FEATURES:
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Organized as 64K x8/ 128K x8/ 256K x8/ 512K x8
Single 3.0-3.6V Read and Write Operations
Superior Reliability
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Fast Sector Erase and Byte Program:
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– Sector Erase Time: 18 ms typical
– Chip Erase Time: 70 ms typical
– Byte Program time: 14 µs typical
– Chip Rewrite Time:
– Endurance: 100,000 Cycles (typical)
– Greater than 100 years Data Retention
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1 second typical for SST39LH512
2 seconds typical for SST39LH010
4 seconds typical for SST39LH020
8 seconds typical for SST39LH040
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Low Power Consumption:
– Active Current: 10 mA (typical)
– Standby Current: 10 µA (typical)
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Automatic Write Timing
– Internal Vpp Generation
End of Write Detection
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Sector Erase Capability
– Uniform 4 KByte sectors
Fast Read Access Time:
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– Toggle Bit
– Data# Polling
– 45 and 55 ns for SST39LH512 / SST39LH010
– 55 ns for SST39LH512 / SST39LH010 /
SST39LH020 / SST39LH040
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CMOS I/O Compatibility
JEDEC Standard
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Latched Address and Data
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– Flash EEPROM Pinouts and command sets
Packages Available
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– 32-Pin PLCC
– 32-Pin TSOP (8mm x 14mm)
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PRODUCT DESCRIPTION
nologies. The total energy consumed is a function of the
applied voltage, current, and time of application. Since
for any given voltage range, the SuperFlash technology
uses less current to program and has a shorter erase
time, the total energy consumed during any Erase or
Program operation is less than alternative flash tech-
nologies. The SST39LHxxx device also improves flex-
ibility while lowering the cost for program, data, and
configuration storage applications.
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The SST39LHxxx is a CMOS Multi-Purpose Flash
(MPF)manufacturedwithSST’sproprietary,highperfor-
mance CMOS SuperFlash technology. The split-gate
celldesignandthickoxidetunnelinginjectorattainbetter
reliabilityandmanufacturabilitycomparedwithalternate
approaches. The SST39LHxxx device writes (Program
or Erase) with a 3.0-3.6V power supply. The
SST39LHxxx device conforms to JEDEC standard
pinouts for x8 memories.
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The SuperFlash technology provides fixed Erase and
Program times, independent of the number of Erase/
Program cycles that have occurred. Therefore the sys-
tem software or hardware does not have to be modified
or de-rated as is necessary with alternative flash tech-
nologies, whose erase and program times increase with
accumulated Erase/Program cycles.
Featuring high performance byte program, the
SST39LHxxxdeviceprovidesamaximumbyte-program
time of 20 µsec. The device uses Toggle Bit or Data#
Polling to detect the completion of Program or Erase
operations. To protect against inadvertent write, the
SST39LHxxxdevicehason-chiphardwareandsoftware
dataprotectionschemes. Designed, manufactured, and
tested for a wide spectrum of applications, the
SST39LHxxxdeviceisofferedwithaguaranteedendur-
ance of 10,000 cycles. Data retention is rated at greater
than 100 years.
To meet high density, surface mount requirements, the
SST39LHxxx device is offered in 32-pin TSOP and 32-
pin PLCC packages. See Figures 1 and 2 for pinouts.
Device Operation
Commands are used to initiate the memory operation
functions of the device. Commands are issued to the
deviceusingstandardmicroprocessorwritesequences.
A command is loaded 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.
The SST39LHxxx device is suited for applications that
requireconvenientandeconomicalupdatingofprogram,
configuration, or data memory. For all system applica-
tions, the SST39LHxxx device significantly improves
performance and reliability, while lowering power con-
sumption.TheSST39LHxxxinherentlyuseslessenergy
during erase and program than alternative flash tech-
© 1999 Silicon Storage Technology, Inc.The SST logo and SuperFlash are registered trademarks of Silicon Storage Technology, Inc. MPF is a trademark of Silicon Storage Technology, Inc.
351-04 5/99 These specifications are subject to change without notice.
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