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X28C64
64K
X28C64
8K x 8 Bit
5 Volt, Byte Alterable E2PROM
FEATURES
• 150ns 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
—60mA Active Current Max. —200µA Standby Current Max.
• Fast Write Cycle Times
—64 Byte Page Write Operation —Byte or Page Write Cycle: 5ms Typical —Complete Memory Rewrite: 0.625 sec. Typical —Effective Byte Write Cycle Time: 78µs 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
PIN CONFIGURATION
DESCRIPTION
The X28C64 is an 8K x 8 E2PROM, fabricated with Xicor’s proprietary, high performance, floating gate CMOS technology. Like all Xicor programmable nonvolatile memories the X28C64 is a 5V only d.