描述 Description

The AT28HC64B is a high-performance electrically erasable and programmable read only memory (EEPROM). Its 64K of memory is organized as 8,192 words by 8 bits. Manufactured with Atmel’s advanced nonvolatile CMOS technology, the device offers access times to 55 ns with power dissipation of just 220 mW. When the device is deselected, the CMOS standby current is less than 100μA.

特性 Features

? Fast Read Access Time - 55 ns

? Automatic Page Write Operation

Internal Address and Data Latches for 64-Bytes

? Fast Write Cycle Times

Page Write Cycle Time: 10 ms Maximum

1 to 64-Byte Page Write Operation

? Low Power Dissipation

40 mA Active Current

100μA CMOS Standby Current

? Hardware and Software Data Protection

? DATA Polling and Toggle Bit for End of Write Detection

? High Reliability CMOS Technology

Endurance: 100,000 Cycles

Data Retention: 10 Years

? Single 5V ±10 Supply

? CMOS and TTL Compatible Inputs and Outputs

? JEDEC Approved Byte-Wide Pinout

? Commercial and Industrial Temperature Ranges