IDT7164S/LS
IDT7164L/LL
CMOS Static RAM
64K (8K x 8-Bit)
Features
Description
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High-speed address/chip select access time
TheIDT7164isa65,536bithigh-speedstaticRAMorganizedas8K
x8.ItisfabricatedusingIDT’shigh-performance,high-reliabilityCMOS
technology.
– 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
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 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.
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Available in 28-pin DIP, CERDIP and SOJ
Military product compliant to MIL-STD-883, Class B
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TheIDT7164ispackagedina28-pin300milDIPandSOJ anda28-
pin600milCERDIP.
Militarygradeproductismanufacturedincompliancewiththelatest
revision of MIL-STD-883, Class B, making it ideally suited to military
temperature applications demandingthe highestlevelofperformance
and reliability.
Functional Block Diagram
A0
VCC
GND
65,536 BIT
MEMORY ARRAY
ADDRESS
DECODER
A
12
7
0
I/O
0
7
I/O CONTROL
I/O
CS1
CS2
OE
CONTROL
LOGIC
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©2007 IntegratedDeviceTechnology,Inc.