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SST49LF002A Datasheet, PDF (1/36 Pages) Silicon Storage Technology, Inc – 2 Mbit / 3 Mbit / 4 Mbit / 8 Mbit Firmware Hub | |||
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2 Mbit / 3 Mbit / 4 Mbit / 8 Mbit Firmware Hub
SST49LF002A / SST49LF003A / SST49LF004A / SST49LF008A
SST49LF002A / 003A / 004A / 008A2 Mb / 3 Mb / 4 Mb / 8 Mb Firmware Hub for Intel 8xx Chipsets
FEATURES:
Advance Information
⢠Firmware Hub for Intel 8xx Chipsets
⢠2 Mbit, 3 Mbit, 4 Mbit, or 8 Mbit SuperFlash
memory array for code/data storage
â SST49LF002A: 256K x8 (2 Mbit)
â SST49LF003A: 384K x8 (3 Mbit)
â SST49LF004A: 512K x8 (4 Mbit)
â SST49LF008A: 1024K x8 (8 Mbit)
⢠Flexible Erase Capability
â Uniform 4 KByte Sectors
â Uniform 16 KByte overlay blocks for
SST49LF002A
â Uniform 64 KByte overlay blocks for
SST49LF003A/004A/008A
â Top Boot Block protection
- 16 KByte for SST49LF002A
- 64 KByte for SST49LF003A/004A/008A
â Chip-Erase for PP Mode Only
⢠Single 3.0-3.6V Read and Write Operations
⢠Superior Reliability
â Endurance:100,000 Cycles (typical)
â Greater than 100 years Data Retention
⢠Low Power Consumption
â Active Read Current: 6 mA (typical)
â Standby Current: 10 µA (typical)
⢠Fast Sector-Erase/Byte-Program Operation
â Sector-Erase Time: 18 ms (typical)
â Block-Erase Time: 18 ms (typical)
â Chip-Erase Time: 70 ms (typical)
â Byte-Program Time: 14 µs (typical)
â Chip Rewrite Time:
SST49LF002A: 4 seconds (typical)
SST49LF003A: 6 seconds (typical)
SST49LF004A: 8 seconds (typical)
SST49LF008A: 15 seconds (typical)
â Single-pulse Program or Erase
â Internal timing generation
⢠Two Operational Modes
â Firmware Hub Interface (FWH) Mode for
in-system operation
â Parallel Programming (PP) Mode for fast
production programming
⢠Firmware Hub Hardware Interface Mode
â 5-signal communication interface supporting
byte Read and Write
â 33 MHz clock frequency operation
â WP# and TBL# pins provide hardware write
protect for entire chip and/or top Boot Block
â Block Locking Register for all blocks
â Standard SDP Command Set
â Data# Polling and Toggle Bit for End-of-Write
detection
â 5 GPI pins for system design flexibility
â 4 ID pins for multi-chip selection
⢠Parallel Programming (PP) Mode
â 11-pin multiplexed address and
8-pin data I/O interface
â Supports fast In-System or PROM programming
for manufacturing
⢠CMOS and PCI I/O Compatibility
⢠Packages Available
â 32-lead PLCC
â 32-lead TSOP (8mm x 14mm)
PRODUCT DESCRIPTION
The SST49LF00xA flash memory devices are designed
to be read-compatible with the Intel 82802 Firmware Hub
(FWH) device for PC-BIOS application. It provides pro-
tection for the storage and update of code and data in
addition to adding system design flexibility through five
general purpose inputs. Two interface modes are sup-
ported by the SST49LF00xA: Firmware Hub (FWH)
Interface Mode for In-System programming and Parallel
Programming (PP) Mode for fast factory programming of
PC-BIOS applications.
The SST49LF00xA flash memory devices are manufac-
tured with SSTâs proprietary, high performance Super-
Flash Technology. The split-gate cell design and thick
oxide tunneling injector attain better reliability and manu-
facturability compared with alternate approaches. The
SST49LF00xA devices significantly improve performance
and reliability, while lowering power consumption. The
SST49LF00xA devices write (Program or Erase) with a
single 3.0-3.6V power supply. It uses less energy during
Erase and Program than alternative flash memory tech-
nologies. The total energy consumed is a function of the
applied voltage, current and time of application. Since for
©2001 Silicon Storage Technology, Inc.
S71161-06-000 9/01
504
1
The SST logo and SuperFlash are registered trademarks of Silicon Storage Technology, Inc.
MPF is a trademark of Silicon Storage Technology, Inc. Intel is a registered trademark of Intel Corporation.
These specifications are subject to change without notice.
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