DESCRIPTION

The X28HC256 is a second generation high performance CMOS 32K x 8 E2PROM. It is fabricated with Xicor’s proprietary, textured poly floating gate technology, providing a highly reliable 5 Volt only nonvolatile memory.

FEATURES

• Access Time: 70ns

• 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:

—Active: 60mA

—Standby: 500µA

• Software Data Protection

—Protects Data Against System Level Inadvertent Writes

• High Speed Page Write Capability

• Highly Reliable Direct Write™ Cell

—Endurance: 100,000 Write Cycles

—Data Retention: 100 Years

• Early End of Write Detection

—DATA Polling

—Toggle Bit Polling