Description
The AT28C64 is a low-power, high-performance 8,192 words by 8-bit nonvolatile electrically erasable and programmable read only memory with popular, easy-to-use features. The device is manufactured with Atmel’s reliable nonvolatile technology.

Features
• Fast Read Access Time – 120 ns
• Fast Byte Write – 200 µs or 1 ms
• Self-timed Byte Write Cycle
   – Internal Address and Data Latches
   – Internal Control Timer
   – Automatic Clear Before Write
• Direct Microprocessor Control
   – READY/BUSY Open Drain Output
   – DATA Polling
• Low Power
   – 30 mA Active Current
   – 100 µA CMOS Standby Current
• High Reliability
   – Endurance: 104 or 105 Cycles
   – Data Retention: 10 Years
• 5V ± 10% Supply
• CMOS and TTL Compatible Inputs and Outputs
• JEDEC Approved Byte-wide Pinout
• Commercial and Industrial Temperature Ranges