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Integrated Device Technology - CMOS StaticRAM 16K (4K x 4-BIT) CACHE-TAG RAM

Numéro de référence IDT6178S15D
Description CMOS StaticRAM 16K (4K x 4-BIT) CACHE-TAG RAM
Fabricant Integrated Device Technology 
Logo Integrated Device Technology 





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IDT6178S15D fiche technique
IDT6178S
CMOS StaticRAM 16K (4K x 4-BIT) CACHE-TAG RAM
CMOS StaticRAM
16K (4K x 4-BIT)
Integrated Device Technology, Inc.
CACHE-TAG RAM
MILITARY AND COMMERCIAL TEMPERATURE RANGE
IDT6178S
FEATURES:
• High-speed Address to MATCH Valid time
– Military: 12/15/20/25ns
– Commercial: 10/12/15/20/25ns (max.)
• High-speed Address Access time
– Military: 12/15/20/25ns
– Commercial: 10/12/15/20/25ns (max.)
• Low-power consumption
– IDT6178S
Active: 300mW (typ.)
• Produced with advanced CMOS high-performance
technology
• Input and output TTL-compatible
• Standard 22-pin Plastic or Ceramic DIP, 24-pin SOJ
• Military product 100% compliant to MIL-STD-883,
Class B
FUNCTIONAL BLOCK DIAGRAM
A0
ADDRESS
DECODE
A11
DESCRIPTION:
The IDT6178 is a high-speed cache address comparator
sub-system consisting of a 16,384-bit StaticRAM organized
as 4K x 4. Cycle Time and Address to MATCH Valid are equal.
The IDT6178 features an onboard 4-bit comparator that
compares RAM contents and current input data. The result is
an active HIGH on the MATCH pin. The MATCH pins of
several IDT6178s can be handed together to provide enabling
or acknowledging signals to the data cache or processor.
The IDT6178 is fabricated using IDT’s high-performance,
high-reliability CMOS technology. Address to MATCH and
Data to MATCH times are as fast as 10ns.
All inputs and outputs of the IDT6178 are TTL-compatible
and the device operates from a single 5V supply.
The IDT6178 is packaged in either a 22-pin, 300-mil Plastic
or Ceramic DIP package or 24-pin SOJ. Military grade product
is manufactured in compliance with latest revision of MIL-
STD-883, Class B, making it ideally suited to military tempera-
ture applications demanding the highest level of performance
and reliability.
16,384-BIT
MEMORY
ARRAY
VCC
GND
I/O0 – I/O3
WE
OE
CLR
4
4
CONTROL
CONTROL I/O
CLEAR
MEMORY
ARRAY
4 COMPARATOR
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
©1994 Integrated Device Technology, Inc.
1111..11
4
MATCH
2953 drw 01
MAY 1994
DSC-1059/2
11

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