SST39WF400B

A Microchip Technology Company 4 Mbit (x16) Multi-Purpose Flash SST39WF400B Data Sheet The SST39WF400B is a 256K x16 CMOS Multi-Purpose Flash (MPF) manufactured with proprietary, high-performance CMOS SuperFlash technology. The splitgate cell design and thick-oxide tunneling injector attain better reliability and manufacturability compared to alternate approaches. The SST39WF400B writes (Program or Erase) with a 1.65-1.95V power supply. This device conforms to JEDEC standard pin assignments for x16 memories. Features Organized as 256K x16 Single Voltage Read and Write Operations – 1.65-1.95V Superior Reliability – Endurance: 100,000 Cycles (typical) – Greater than 100 years Data Retention Low Power Consumption (typical values at 5 MHz) – Active Current: 5 mA (typical) – Standby Current: 5 µA (typical) Sector-Erase Capability – Uniform 2 KWord sectors Block-Erase Capability – Uniform 32 KWord blocks Fast Read Access Time – 70 ns Latche...