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71256S70DB

Description
SRAM 256K(32KX8) SRAM
Categorystorage   
File Size86KB,10 Pages
ManufacturerIDT (Integrated Device Technology, Inc.)
Websitehttp://www.idt.com/
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71256S70DB Overview

SRAM 256K(32KX8) SRAM

71256S70DB Parametric

Parameter NameAttribute value
Product AttributeAttribute Value
ManufacturerIDT (Integrated Device Technology, Inc.)
Product CategorySRAM
Shipping RestrictionsThis product may require additional documentation to export from the United States.
RoHSN
Memory Size256 kbit
Organization32 k x 8
Access Time70 ns
Interface TypeParallel
Supply Voltage - Max5.5 V
Supply Voltage - Min4.5 V
Minimum Operating Temperature- 55 C
Maximum Operating Temperature+ 125 C
Mounting StyleThrough Hole
Package / CaseCDIP-28
PackagingTube
Height1.65 mm
Length37.2 mm
Memory TypeSDR
TypeAsynchronous
Width15.24 mm
Factory Pack Quantity13
CMOS Static RAM
256K (32K x 8-Bit)
Features
IDT71256S
IDT71256L
High-speed address/chip select time
– Military: 25/35/45/55/70/85/100ns (max.)
– Commercial/Industrial: 20/25/35ns (max.) low power only
Low-power operation
Battery Backup operation – 2V data retention
Produced with advanced high-performance CMOS
technology
Input and output directly TTL-compatible
Available in standard 28-pin (300 or 600 mil) ceramic DIP,
28-pin (300 mil) SOJ
Military product compliant to MIL-STD-883, Class B
Description
Address access times as fast as 20ns are available with power
consumption of only 350mW (typ.). The circuit also offers a reduced power
standby mode. When
CS
goes HIGH, the circuit will automatically go to and
remain in, a low-power standby mode as long as
CS
remains HIGH. This
capability provides significant system level power and cooling savings.
The low-power (L) version also offers a battery backup data retention
capability where the circuit typically consumes only 5μW when operating
off a 2V battery.
The IDT71256 is packaged in a 28-pin (300 or 600 mil) ceramic DIP,
a 28-pin 300 mil SOJ providing high board level packing densities.
The IDT71256 military RAM is manufactured in compliance with the
latest revision of MIL-STD-883, Class B, making it ideally suited to military
temperature applications demanding the highest level of performance and
reliability.
The IDT 71256 is a 262,144-bit high-speed static RAM organized as
32K x 8. It is fabricated using high-performance, high-reliability CMOS
technology.
Functional Block Diagram
A
0
ADDRESS
DECODER
A
14
262,144 BIT
MEMORY ARRAY
V
CC
GND
I/O
0
INPUT
DATA
CIRCUIT
I/O
7
I/O CONTROL
CS
OE
WE
,
CONTROL
CIRCUIT
2946 drw 01
SEPTEMBER 2013
1
©2013 Integrated Device Technology, Inc.
DSC-2946/13
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