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Integrated Device Technology Electronic Components Datasheet

IDT7188S Datasheet

CMOS STATIC RAM 64K 16K x 4-BIT

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Integrated Device Technology, Inc.
CMOS STATIC RAM
64K (16K x 4-BIT)
IDT7188S
IDT7188L
FEATURES:
• High-speed (equal access and cycle times)
— Military: 25/35/45/55/70/85ns (max.)
• Low power consumption
• Battery backup operation — 2V data retention (L version
only)
• Available in high-density industry standard 22-pin, 300
mil ceramic DIP
• Produced with advanced CMOS technology
• Inputs/outputs TTL-compatible
• Military product compliant to MIL-STD-883, Class B
DESCRIPTION:
The IDT7188 is a 65,536-bit high-speed static RAM
organized as 16K x 4. It is fabricated using IDT’s high-
performance, high-reliability technology — CMOS. This state-
of-the-art technology, combined with innovative circuit design
techniques, provides a cost effective approach for memory
intensive applications.
Access times as fast as 25ns are available. The IDT7188
offers a reduced power standby mode, ISB1, which is activated
when CS goes HIGH. This capability significantly decreases
power while enhancing system reliability. The low-power
version (L) version also offers a battery backup data retention
capability where the circuit typically consumes only 30µW
operating from a 2V battery.
All inputs and outputs are TTL-compatible and operate
from a single 5V supply. The IDT7188 is packaged in 22-pin,
300 mil ceramic DIP providing excellent board-level packing
densities.
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
DECODER
65,536-BIT
MEMORY ARRAY
VCC
GND
A13
I/O0
I/O1
I/O2
I/O3
INPUT
DATA
CONTROL
COLUMN I/O
CS
WE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY TEMPERATURE RANGE
©1996 Integrated Device Technology, Inc.
For latest information contact IDT's web site at www.idt.com or fax-on-demand at 408-492-8391.
6.3
2989 drw 01
AUGUST 1996
DSC-2989/7
1


Integrated Device Technology Electronic Components Datasheet

IDT7188S Datasheet

CMOS STATIC RAM 64K 16K x 4-BIT

No Preview Available !

IDT7188S/L
CMOS STATIC RAM 64K (16K x 4-BIT)
PIN CONFIGURATIONS
A0
A1
A2
A3
A4
A5
A6
A7
A8
CS
GND
1 22
2 21
3 20
4 19
5 18
6 D22-1 17
7 16
8 15
9 14
10 13
11 12
VCC
A13
A12
A11
A10
A9
I/O 3
I/O 2
I/O 1
I/O 0
WE
2989 drw 02
DIP
TOP VIEW
PIN DESCRIPTIONS
Name
Description
A0–A13
Address Inputs
CS Chip Select
WE Write Enable
I/O0-3
Data Input/Output
VCC Power
GND
Ground
MILITARY TEMPERATURE RANGE
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Rating
Com’l.
Mil. Unit
VTERM
Terminal Voltage –0.5 to +7.0 –0.5 to +7.0
with Respect
to GND
V
TA Operating
0 to +70 –55 to +125 °C
Temperature
TBIAS
Temperature
Under Bias
–55 to +125 –65 to +135 °C
TSTG
Storage
Temperature
–55 to +125 –65 to +150 °C
PT Power Dissipation 1.0
1.0 W
IOUT
DC Output
Current
50 50 mA
NOTE:
2989 tbl 03
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.
CAPACITANCE (TA = +25°C, f = 1.0MHz, VCC = 0v))
Symbol
Parameter(1)
Conditions Max. Unit
CIN Input Capacitance
VIN = 0V
6 pF
CI/O I/O Capacitance
VOUT = 0V
6 pF
NOTE:
2989 tbl 04
1. This parameter is determined by device characterization, but is not
production tested.
RECOMMENDED DC OPERATING
CONDITIONS
Symbol
Parameter
Min. Typ. Max. Unit
VCC Supply Voltage
4.5 5.0 5.5 V
GND
Supply Voltage
0 0 0V
2989 tbl 01
VIH
Input High Voltage
2.2 — 6.0 V
VIL
Input Low Voltage –0.5(1)
0.8 V
NOTE:
2989 tbl 05
1. VIL (min.) = –3.0V for pulse width less than 20ns,once per cycle.
TRUTH TABLE(1)
Mode
CS
WE
Standby
HX
Read
LH
Write
LL
NOTE:
1. H = VIH, L = VIL, X = don't care.
I/O
High Z
DOUT
DIN
Power
Standby
Active
Active
2989 tbl 02
RECOMMENDED OPERATING
TEMPERATURE AND SUPPLY VOLTAGE
Grade
Temperature
GND
VCC
Military
–55°C to +125°C
0V 5V ± 10%
Commercial
0°C to +70°C
0V 5V ± 10%
2989 tbl 06
6.3 2


Part Number IDT7188S
Description CMOS STATIC RAM 64K 16K x 4-BIT
Maker Integrated Device Technology
Total Page 7 Pages
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