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Integrated Device Technology Electronic Components Datasheet

IDT7164S Datasheet

CMOS STATIC RAM

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CMOS Static RAM
64K (8K x 8-Bit)
IDT7164S
IDT7164L
Features
High-speed address/chip select access time
– 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
Available in 28-pin DIP, CERDIP and SOJ
Military product compliant to MIL-STD-883, Class B
Green parts available, see ordering information
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
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.
The IDT7164 is packaged in a 28-pin 300 mil CERDIP, a 28-pin 600
mil CERDIP, 300mil Plastic DIP and 300mil SOJ
Militarygradeproductismanufacturedincompliancewith 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
ADDRESS
DECODER
A12
I/O 0
65,536 BIT
MEMORY ARRAY
0
I/O CONTROL
VCC
GND
7
I/O7
CS1
CS2
OE
WE
CONTROL
LOGIC
©2016 Integrated Device Technology, Inc.
1
2967 drw 01
DECEMBER 2016
DSC-2967/17


Integrated Device Technology Electronic Components Datasheet

IDT7164S Datasheet

CMOS STATIC RAM

No Preview Available !

IDT7164S/L
CMOS Static RAM 64K (8K x 8-Bit)
Pin Configurations
NC
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
GND
1 28
2 27
3 26
4 25
5 CD28 24
6 SD28 23
7 PJG28 22
8 PTG28 21
9 20
10 19
11 18
12 17
13 16
14 15
VCC
WE
CS2
A8
A9
A11
OE
A10
CS1
I/O7
I/O6
I/O5
I/O4
I/O3
DIP/SOJ
Top View
2967 drw 02
Military, Commercial, and Industrial Temperature Ranges
Absolute Maximum Ratings(1)
Symbol
Rating
Com'l.
Mil.
Unit
VTERM(2)
Terminal Voltage
with Respect
to GND
-0.5 to +7.0 -0.5 to +7.0 V
TA Operating
Temperature
0 to +70 -55 to +125 oC
TBIAS
Temperature
Under Bias
-55 to +125 -65 to +135 oC
TSTG Storage Temperature -55 to +125 -65 to +150 oC
PT Power Dissipation
1.0
1.0 W
IOUT DC Output Current
50
50 mA
NOTES:
2967 tbl 02
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may
cause permanent damage to the device. This is a stress rating only and functional
operation of the device at these or any other conditions above those indicated in the
operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect reliability.
2. VTERM must not exceed VCC + 0.5V.
Pin Descriptions
Name
A0 - A12
I/O0 - I/O7
CS1
CS2
WE
OE
GND
VCC
Description
Address
Data Input/Output
Chip Select
Chip Select
Write Enable
Output Enable
Ground
Power
2967 tbl 01
Recommended DC Operating
Conditions
Symbol
Parameter
Min. Typ. Max. Unit
VCC Supply Voltage
4.5 5.0 5.5 V
GND Ground
00
0V
VIH Input HIGH Voltage
2.2 ____ VCC + 0.5 V
VIL Input LOW Voltage
-0.5(1)
____
0.8
V
NOTE:
1. VIL (min.) = –1.5V for pulse width less than 10ns, once per cycle.
2967 tbl 05
Truth Table(1,2,3)
WE CS1 CS2 OE
I/O
Function
X H X X High-Z Deselected - Standby (ISB)
X X L X High-Z Deselected - Standby (ISB)
X VHC VHC or X High-Z Deselected - Standby (ISB1)
VLC
X X VLC X High-Z Deselected - Standby (ISB1)
H L H H High-Z
Output Disabled
H L H L DATAOUT
Read Data
L L H X DATAIN
Write Data
NOTES:
1. CS2 will power-down CS1, but CS1 will not power-down CS2.
2. H = VIH, L = VIL, X = don't care.
3. VLC = 0.2V, VHC = VCC - 0.2V
2967 tbl 03
Recommended Operating
Temperature and Supply Voltage
Grade
Temperature
GND
Vcc
Military
-55OC to +125OC
0V
5V ± 10%
Industrial
-40OC to +85OC
0V
5V ± 10%
Commercial
0OC to +70OC
0V
5V ± 10%
2967 tbl 04
2


Part Number IDT7164S
Description CMOS STATIC RAM
Maker Integrated Device Technology
Total Page 10 Pages
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