X28HC256E-90

5V, Byte Alterable E2PROM

DESCRIPTION

The X28HC256 is a second generation high performance CMOS 32K x 8 E2PROM. It is fabricated with ’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