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CMOS Static RAM
64K (8K x 8-Bit)
IDT7164S
IDT7164L
Features
Description
High-speed address/chip select access time
TheIDT7164isa65,536bithigh-speedstaticRAMorganizedas8K
x8.Itisfabricatedusinghigh-performance,high-reliabilityCMOStech-
nology.
– Military:20/25/35/45/55/70/85/100ns(max.)
– Industrial:20/25ns(max.)
– Commercial: 20/25ns (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
Addressaccesstimesasfastas20nsareavailableandthecircuitoffers
a reduced power standby mode. When CS1 goes HIGH or CS2 goes
LOW,thecircuitwillautomaticallygoto,andremainin,alow-powerstand-
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.
Available in 28-pin DIP, CERDIP and SOJ
Military product compliant to MIL-STD-883, Class B
Green parts available, see ordering information
TheIDT7164ispackagedina28-pin300milCERDIP,a28-pin600
mil CERDIP, 300mil Plastic DIP and 300mil SOJ
Militarygradeproductismanufacturedincompliancewith MIL-STD-
883,ClassB,makingitideallysuitedtomilitarytemperatureapplications
demandingthehighestlevelofperformanceandreliability.
Functional Block Diagram
A
0
VCC
GND
65,536 BIT
MEMORY ARRAY
ADDRESS
DECODER
A
12
7
0
I/O
0
I/O CONTROL
7
I/O
CS
CS
OE
WE
1
2
CONTROL
LOGIC
2967 drw 01
DECEMBER 2016
1
©2016 Integrated Device Technology, Inc.
DSC-2967/17