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