AT28C64/X
64K (8K x 8)
CMOS
E
2
PROM
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: 10
4
or 10
5
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
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 technol-
ogy.
(continued)
PDIP, SOIC
Top View
Pin Name Function
A0 - A12 Addresses
CE Chip Enable
OE Output Enable
WE Write Enable
I/O0 - I/O7 Data Inputs/Outputs
RDY/BUSY Ready/Busy Output
NC No Connect
DC Don’t Connect
Pin Configurations
TSOP
Top View
LCC, PLCC
Top View
Note: PLCC package pins 1 and
17 are DON’T CONNECT. 0001G
AT28C64/X
2-193