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X28C64 Datasheet PDF - Xicor -> Intersil

Part NumberX28C64 Xicor
Xicor -> Intersil Xicor
Description5 Volt, Byte Alterable E2PROM
X28C64 Datasheet PDF : X28C64 pdf   
X28C64FM-25 image

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 device. The X28C64 features the JEDEC approved pinout for byte wide memories, compatible with industry standard RAMs.
The X28C64 supports a 64-byte page write operation, effectively providing a 78µs/byte write cycle and enabling the entire memory to be typically written in 0.625 seconds. The X28C64 also features DATA and Toggle Bit Polling, a system software support scheme used to indicate the early completion of a write cycle. In addition, the X28C64 includes a user-optional software data protection mode that further enhances Xicor’s hard ware write protect capability.
Xicor E2PROMs are designed and tested for applications requiring extended endurance. Inherent data retention is greater than 100 years.

• 150ns Access Time
• Simple Byte and Page Write
   —Single 5V Supply
   —No External High Voltages or VPP Control Circuits
   —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

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