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IDT71256SA Datasheet(PDF) 1 Page - Integrated Device Technology

Part No. IDT71256SA
Description  CMOS STATIC RAM 256K (32K x 8-BIT)
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Maker  IDT [Integrated Device Technology]
Homepage  http://www.idt.com
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 1 page
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SEPTEMBER 2004
DSC-2948/08
1
©2004 Integrated Device Technology, Inc.
Features
32K x 8 advanced high-speed CMOS static RAM
Commercial (0° to 70°C) and Industrial (-40° to 85°C)
temperature options
Equal access and cycle times
– Commercial and Industrial: 12/15/20/25ns
One Chip Select plus one Output Enable pin
Bidirectional data inputs and outputs directly
TTL-compatible
Low power consumption via chip deselect
Commercial product available in 28-pin 300- and 600-mil
Plastic DIP, 300 mil Plastic SOJ and TSOP packages
Industrial product available in 28-pin 300 mil Plastic SOJ
and TSOP packages
Description
The IDT71256SA is a 262,144-bit high-speed Static RAM organized
as 32K x 8. It is fabricated using IDT’s high-perfomance, high-reliability
CMOS technology. This state-of-the-art technology, combined with
innovativecircuitdesigntechniques,providesacost-effectivesolutionfor
high-speed memory needs.
The IDT71256SA has an output enable pin which operates as fast as
6ns,withaddress accesstimesasfastas12ns. Allbidirectionalinputsand
outputs of the IDT71256SA are TTL-compatible and operation is from a
single 5V supply. Fully static asynchronous circuitry is used, requiring no
clocks or refresh for operation.
The IDT71256SA is packaged in 28-pin 300- and 600-mil Plastic DIP,
28-pin 300 mil Plastic SOJ and TSOP.
Functional Block Diagram
CMOS Static RAM
256K (32K x 8-Bit)
IDT71256SA
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
I/O0- I/O7
CS
WE
OE
8
8
CONTROL
LOGIC
I/O CONTROL
262,144-BIT
MEMORY
ARRAY
ADDRESS
DECODER
2948 drw 01
,




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