DESCRIPTION

The X28HC64 is an 8K x 8 EEPROM, fabricated with Intersil’s proprietary, high performance, floating gate CMOS technology. Like all Intersil programmable nonvolatile memories, the X28HC64 is a 5V only device. It features the JEDEC approved pinto for byte-wide memories, compatible with industry standard RAMs.

FEATURES

? 70ns 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

—40mA active current max.

—200μA 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: 1 million cycles

—Data retention: 100 years

? JEDEC approved byte-wide pin out