DESCRIPTION

The X28HC64 is an 8K x 8 E2PROM, fabricated with Xicor’s proprietary, high performance, floating gate CMOS technology. Like all Xicor programmable nonvolatile memories the X28HC64 is a 5V only device. The X28HC64 features the JEDEC approved pinout for byte wide memories, compatible with industry standard RAMs.

FEATURES

• 55ns Access Time

• Simple Byte and Page Write

  —Single 5V Supply

    —No External High Voltages or VPP Control Circuits

  —Self-Timed

    —No Erase Before Write

    —No Complex Programming Algorithms

    —No Overerase Problem

• Low Power CMOS

  —40 mA Active Current Max.

  —200 µA Standby Current Max.

• Fast Write Cycle Times

  —64 Byte Page Write Operation

  —Byte or Page Write Cycle: 2ms Typical

  —Complete Memory Rewrite: 0.25 sec. Typical

  —Effective Byte Write Cycle Time: 32µs Typical

• Software Data Protection

• End of Write Detection

  —DATA Polling

  —Toggle Bit

• High Reliability

  —Endurance: 100,000 Cycles

  —Data Retention: 100 Years

• JEDEC Approved Byte-Wide Pinout