AT28C256-20TI ATMEL Corporation, AT28C256-20TI Datasheet
AT28C256-20TI
Manufacturer Part Number
AT28C256-20TI
Description
Manufacturer
ATMEL Corporation
Specifications of AT28C256-20TI
Date_code
03+
Packing_info
TSOP
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Pin Configurations
Features
Description
The AT28C256 is a high-performance Electrically Erasable and Programmable Read
Only Memory. Its 256K of memory is organized as 32,768 words by 8 bits. Manufac-
tured with Atmel’s advanced nonvolatile CMOS technology, the device offers access
times to 150 ns with power dissipation of just 440 mW. When the device is deselected,
the CMOS standby current is less than 200 A.
Pin Name
A0 - A14
CE
OE
WE
I/O0 - I/O7
NC
DC
Fast Read Access Time - 150 ns
Automatic Page Write Operation
Fast Write Cycle Times
Low Power Dissipation
Hardware and Software Data Protection
DATA Polling for End of Write Detection
High Reliability CMOS Technology
Single 5V
CMOS and TTL Compatible Inputs and Outputs
JEDEC Approved Byte-Wide Pinout
Full Military, Commercial, and Industrial Temperature Ranges
Internal Address and Data Latches for 64-Bytes
Internal Control Timer
Page Write Cycle Time: 3 ms or 10 ms Maximum
1 to 64-Byte Page Write Operation
50 mA Active Current
200 A CMOS Standby Current
Endurance: 10
Data Retention: 10 Years
Top View
PGA
10% Supply
Function
Addresses
Chip Enable
Output Enable
Write Enable
Data Inputs/Outputs
No Connect
Don’t Connect
4
or 10
5
Cycles
Note: PLCC package pins 1 and
17 are DON’T CONNECT.
LCC, PLCC
Top View
Top View
TSOP
FLATPACK, SOIC
CERDIP, PDIP,
Top View
(continued)
AT28C256
AT28C256
256K (32K x 8)
Paged
CMOS
E
2
PROM
2-217
0006F
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