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SST25LF020A Datasheet, PDF (1/26 Pages) Silicon Storage Technology, Inc – 2 Mbit / 4 Mbit SPI Serial Flash | |||
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2 Mbit / 4 Mbit SPI Serial Flash
SST25LF020A / SST25LF040A
SST25LF020A / 040A2Mb / 4Mb Serial Peripheral Interface (SPI) flash memory
FEATURES:
Data Sheet
⢠Single 3.0-3.6V Read and Write Operations
⢠Serial Interface Architecture
â SPI Compatible: Mode 0 and Mode 3
⢠33 MHz Max Clock Frequency
⢠Superior Reliability
â Endurance: 100,000 Cycles (typical)
â Greater than 100 years Data Retention
⢠Low Power Consumption:
â Active Read Current: 7 mA (typical)
â Standby Current: 8 µA (typical)
⢠Flexible Erase Capability
â Uniform 4 KByte sectors
â Uniform 32 KByte overlay blocks
⢠Fast Erase and Byte-Program:
â Chip-Erase Time: 70 ms (typical)
â Sector- or Block-Erase Time: 18 ms (typical)
â Byte-Program Time: 14 µs (typical)
⢠Auto Address Increment (AAI) Programming
â Decrease total chip programming time over
Byte-Program operations
⢠End-of-Write Detection
â Software Status
⢠Hold Pin (HOLD#)
â Suspends a serial sequence to the memory
without deselecting the device
⢠Write Protection (WP#)
â Enables/Disables the Lock-Down function of the
status register
⢠Software Write Protection
â Write protection through Block-Protection bits in
status register
⢠Temperature Range
â Commercial: 0°C to +70°C
â Industrial: -40°C to +85°C
â Extended: -20°C to +85°C
⢠Packages Available
â 8-lead SOIC 150 mil body width
for SST25LF020A
â 8-lead SOIC 200 mil body width
for SST25LF040A
â 8-contact WSON (5mm x 6mm)
⢠All non-Pb (lead-free) devices are RoHS compliant
PRODUCT DESCRIPTION
SSTâs serial flash family features a four-wire, SPI-com-
patible interface that allows for a low pin-count package
occupying less board space and ultimately lowering total
system costs. SST25LF020A/040A SPI serial flash
memories are manufactured with SSTâs proprietary, high
performance CMOS SuperFlash technology. The split-
gate cell design and thick-oxide tunneling injector attain
better reliability and manufacturability compared with
alternate approaches.
The SST25LF020A/040A devices significantly improve
performance, while lowering power consumption. The
total energy consumed is a function of the applied volt-
age, current, and time of application. Since for any given
voltage range, the SuperFlash technology uses less cur-
rent to program and has a shorter erase time, the total
energy consumed during any Erase or Program operation
is less than alternative flash memory technologies. The
SST25LF020A/040A devices operate with a single 3.0-
3.6V power supply.
The SST25LF020A devices are offered in an 8-lead SOIC
150 mil body width (SA) package. The SST25LF040A
devices are offered in an 8-lead SOIC 200 mil body width
(S2A) package. All densities are offered in the 8-contact
WSON package. See Figure 1 for the pin assignments.
©2006 Silicon Storage Technology, Inc.
S71242-05-000
1/06
1
The SST logo and SuperFlash are registered Trademarks of Silicon Storage Technology, Inc.
These specifications are subject to change without notice.
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