AT28C64X-20PC Datasheet PDF - ATMEL

●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.

●The AT28C64 is accessed like a Static RAM for the read or write cycles without the need for external components.

●During a byte write, the address and data are latched in ternally, freeing the microprocessor address and data bus for other operations. Following the initiation of a write cycle, the device will go to a busy state and automatically clear and write the latched data using an internal control timer.

●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