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Integrated Device Technology - CMOS STATIC RAM 64K (16K x 4-BIT) with Output Control

Numéro de référence IDT6198S25LB
Description CMOS STATIC RAM 64K (16K x 4-BIT) with Output Control
Fabricant Integrated Device Technology 
Logo Integrated Device Technology 





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IDT6198S25LB fiche technique
®
Integrated Device Technology, Inc.
CMOS STATIC RAM
64K (16K x 4-BIT)
with Output Control
IDT6198S
IDT6198L
FEATURES:
• High-speed (equal access and cycle times)
— Military: 20/25/35/45/55/70/85ns (max.)
— Commercial: 15/20/25/35ns (max.)
• Output Enable (OE) pin available for added system flexibility
• Low-power consumption
• JEDEC compatible pinout
• Battery back-up operation—2V data retention (L version
only)
• 24-pin CERDIP, high-density 28-pin leadless chip carrier,
and 24-pin SOJ
• Produced with advanced CMOS technology
• Bidirectional data inputs and outputs
• Military product compliant to MIL-STD-883, Class B
DESCRIPTION:
The IDT6198 is a 65,536-bit high-speed static RAM orga-
nized as 16K x 4. It is fabricated using IDT’s high-perfor-
mance, high-reliability technology—CMOS. This state-of-the-
art technology, combined with innovative circuit design tech-
niques, provides a cost-effective approach for memory inten-
sive applications. Timing parameters have been specified to
meet the speed demands of the IDT79R3000 RISC proces-
sors.
Access times as fast as 15ns are available. The IDT6198
offers a reduced power standby mode, ISB1, which is activated
when CS goes HIGH. This capability significantly decreases
system, while enhancing system reliability. The low-power
version (L) also offers a battery backup data retention capa-
bility where the circuit typically consumes only 30µW when
operating from a 2V battery.
All inputs and outputs are TTL-compatible and operate
from a single 5V supply.
The IDT6198 is packaged in either a 24-pin 300 mil CERDIP,
28-pin leadless chip carrier or 24-pin J-bend small outline IC.
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
DECODER
65,536-BIT
MEMORY ARRAY
A13
I/O0
I/O1
I/O2
I/O3
INPUT
DATA
CONTROL
COLUMN I/O
CS
WE
OE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1994 Integrated Device Technology, Inc.
6.3
2987 drw 01
MAY 1994
DSC-1010/4
1

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