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CMOS Static RAM
64K (8K x 8-Bit)
IDT7164S
IDT7164L
High-speed address/chip select access time
Features
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– Military: 20/25/35/45/55/70/85/100ns (max.)
– Industrial: 20/25ns (max.)
– Commercial: 20/25ns (max.)
Description
The IDT7164 is a 65,536 bit high-speed static RAM organized as 8K
x 8. It is fabricated using high-performance, high-reliability CMOS tech-
nology.
Address access times as fast as 20ns are available and the circuit offers
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Low power consumption
Battery backup operation – 2V data retention voltage
(L Version only)
Produced with advanced CMOS high-performance
technology
Inputs and outputs directly TTL-compatible
Three-state outputs
Available in 28-pin DIP, CERDIP and SOJ
Military product compliant to MIL-STD-883, Class B
a reduced power standby mode. When CS 1 goes HIGH or CS 2 goes
LOW, the circuit will automatically go to, and remain in, a low-power stand-
by mode. The low-power (L) version also offers a battery backup data
retention capability at power supply levels as low as 2V.
All inputs and outputs of the IDT7164 are TTL-compatible and
operation is from a single 5V supply, simplifying system designs. Fully
static asynchronous circuitry is used, requiring no clocks or refreshing
for operation.
The IDT7164 is packaged in a 28-pin 300 mil DIP and SOJ and a 28-
pin 600 mil CERDIP.
Military grade product is manufactured in compliance with MIL-STD-
883, Class B, making it ideally suited to military temperature applications
demanding the highest level of performance and reliability.
Functional Block Diagram
A 0
V CC
A 12
ADDRESS
DECODER
0
65,536 BIT
MEMORY ARRAY
7
GND
I/O 0
I/O CONTROL
I/O 7
CS 1
CS 2
OE
WE
CONTROL
LOGIC
1
2967 drw 01
OCTOBER 2013
?2013 Integrated Device Technology, Inc.
DSC-2967/16
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