PRODUCT DESCRIPTION
The SST27SF256/512/010/020 are a 32K x8 / 64K x8 / 128K x8 / 256K x8 CMOS, Many-Time Programmable (MTP) low cost flash, manufactured with SST’s proprietary, high performance SuperFlash technology. The split-gate cell design and thick oxide tunneling injector attain better reliability and manufacturability compared with alternate approaches. These MTP devices can be electrically erased and programmed at least 1000 times using an external programmer with a 12 volt power supply. They have to be erased prior to programming. These devices conform to JEDEC standard pinouts for byte-wide memories.

FEATURES:
• Organized as 32K x8 / 64K x8 / 128K x8 / 256K x8
• 4.5-5.5V Read Operation
• Superior Reliability
    – Endurance: At least 1000 Cycles
    – Greater than 100 years Data Retention
• Low Power Consumption
    – Active Current: 20 mA (typical)
    – Standby Current: 10 µA (typical)
• Fast Read Access Time
    – 70 ns
    – 90 ns
• Fast Byte-Program Operation
    – Byte-Program Time: 20 µs (typical)
    – Chip Program Time:
        0.7 seconds (typical) for SST27SF256
        1.4 seconds (typical) for SST27SF512
        2.8 seconds (typical) for SST27SF010
        5.6 seconds (typical) for SST27SF020
• Electrical Erase Using Programmer
    – Does not require UV source
    – Chip-Erase Time: 100 ms (typical)
• TTL I/O Compatibility
• JEDEC Standard Byte-wide EPROM Pinouts
• Packages Available
    – 32-pin PLCC
    – 32-pin TSOP (8mm x 14mm)
    – 28-pin PDIP for SST27SF256/512
    - 32-pin PDIP for SST27SF010/020