Silicon Storage Technology SST49LF004
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. The SST49LF004 flash memory device is manufactured with SST’s proprietary, high performance SuperFlash Technology.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 communicatio...