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