IDT7164S
IDT7164L
CMOS Static RAM
64K (8K x 8-Bit)
Features
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Description
High-speed address/chip select access time
– Military: 20/25/35/45/55/70/85/100ns (max.)
– Industrial: 25/35ns (max.)
– Commercial: 15/20/25/35ns (max.)
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
The IDT7164 is a 65,536 bit high-speed static RAM organized as 8K
x 8. It is fabricated using IDT’s high-performance, high-reliability CMOS
technology.
Address access times as fast as 15ns are available and the circuit
offers a reduced power standby mode. When CS1 goes HIGH or CS2
goes LOW, the circuit will automatically go to, and remain in, a lowpower 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 28pin 600 mil CERDIP.
Military grade product 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.
Functional Block Diagram
A0
VCC
GND
65,536 BIT
MEMORY ARRAY
ADDRESS
DECODER
A
12
7
0
I/O 0
I/O CONTROL
I/O7
CS1
CS2
OE
CONTROL
LOGIC
2967 drw 01
WE
DECEMBER 2001
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©2000 Integrated Device Technology, Inc.
DSC-2967/11
