AT28C64 Datasheet, PDF (1/11 Pages) ATMEL Corporation – 64K 8K x 8 CMOS E2PROM

AT28C64/X
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}
64K (8K x 8)
CMOS
E²PROM
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)
Pin Configurations
Pin Name
A0 - A12
CE
OE
WE
I/O0 - I/O7
RDY/BUSY
NC
DC
Function
Addresses
Chip Enable
Output Enable
Write Enable
Data Inputs/Outputs
Ready/Busy Output
No Connect
Don’t Connect
PDIP, SOIC
Top View
LCC, PLCC
Top View
TSOP
Top View
AT28C64/X
Note: PLCC package pins 1 and
17 are DON’T CONNECT.
0001G
2-193