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AT27C256R-70TI fiches techniques PDF

ATMEL Corporation - 256K 32K x 8 OTP CMOS EPROM

Numéro de référence AT27C256R-70TI
Description 256K 32K x 8 OTP CMOS EPROM
Fabricant ATMEL Corporation 
Logo ATMEL Corporation 





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AT27C256R-70TI fiche technique
AT27C256R
Features
Fast Read Access Time - 45 ns
•• Low Power CMOS Operation
100 µA max. Standby
20 mA max. Active at 5 MHz
JEDEC Standard Packages
28-Lead 600-mil PDIP
32-Lead PLCC
28-Lead TSOP and SOIC
5V ± 10% Supply
High Reliability CMOS Technology
2,000V ESD Protection
200 mA Latchup Immunity
RapidProgramming Algorithm - 100 µs/byte (typical)
CMOS and TTL Compatible Inputs and Outputs
Integrated Product Identification Code
•• Commercial and Industrial Temperature Ranges
Description
The AT27C256R is a low-power, high performance 262,144 bit one-time programma-
ble read only memory (OTP EPROM) organized 32K by 8 bits. It requires only one
5V power supply in normal read mode operation. Any byte can be accessed in less
than 45 ns, eliminating the need for speed reducing WAIT states on high performance
microprocessor systems.
Atmel’s scaled CMOS technology provides low active power consumption, and fast
programming. Power consumption is typically only 8 mA in Active Mode and less
than 10 µA in Standby.
(continued)
256K (32K x 8)
OTP
CMOS
EPROM
Pin Configurations
Pin Name Function
A0 - A14 Addresses
O0 - O7 Outputs
CE Chip Enable
OE Output Enable
NC No Connect
PDIP, SOIC Top View
AT27C256R
PLCC Top View
TSOP Top View
Type 1
Note: PLCC Package Pins 1 and
17 are DON’T CONNECT.
0014G
3-125

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