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