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SST49LF004

Silicon Storage Technology
Part Number SST49LF004
Manufacturer Silicon Storage Technology
Description 4 Megabit Firmware Hub
Published Feb 20, 2016
Detailed Description 4 Megabit Firmware Hub SST49LF004 Advance Information FEATURES: • Firmware Hub for Intel® 810, 810E, 820, 840 Chipsets...
Datasheet PDF File SST49LF004 PDF File

SST49LF004
SST49LF004


Overview
4 Megabit Firmware Hub SST49LF004 Advance Information FEATURES: • Firmware Hub for Intel® 810, 810E, 820, 840 Chipsets • 4Mbits SuperFlash memory array for code/data storage – SST49LF004: 512K x8 (4 Mbit) • Flexible Erase Capability – Uniform 4 KByte sectors – Uniform 64 KByte overlay blocks – 32 KByte Top boot block protection – Chip-Erase • Single 3.
0-3.
6V Read and Write Operations • Superior Reliability – Endurance:100,000 Cycles (typical) – Greater than 100 years Data Retention • Low Power Consumption – Active Current: 10 mA (typical) • Fast Sector-Erase/Byte-Program Operation – Sector-Erase Time: 18ms (typical) – Block-Erase Time: 18ms (typical) – Chip-Erase Time: 70ms (typical) – Byte-Program Time: 14µs (typical) – Chip Rewrite Time: SST49LF004: 8 seconds (typical) – Single-pulse Program or Erase – Internal timing generation • Two Operational Modes – Firmware Hub Interface (FWH) Mode for in-system operation – Parallel Programming (PP) Mode for fast production programming • Firmware Hub Hardware Interface Mode – 5-signal communication interface supporting byte Read and Write – 33 MHz clock frequency operation – WP# and TBL# pins provide hardware write protect for entire chip and/or top boot block – Standard SDP Command Set – Data# Polling and Toggle Bit for End-of-Write detection – 5 GPI pins for system design flexibility – 4 ID pins for multi-chip selection • Parallel Programming (PP) Mode – 11 pin multiplexed address and 8 pin data I/O interface – Supports fast In-System or PROM programming for manufacturing • CMOS I/O Compatibility • Packages Available – 32-Pin PLCC – 32-Pin TSOP (8mm x 14mm) PRODUCT DESCRIPTION The SST49LF004 flash memory device is designed to be read-compatible to the Intel 82802 Firmware Hub (FWH) device for PC-BIOS application.
It provides protection 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 supported by the SST49LF004: Firm...


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