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IDT7134SA45L48I Datasheet(PDF) 1 Page - Integrated Device Technology

Part # IDT7134SA45L48I
Description  HIGH-SPEED 4K x 8 DUAL-PORT STATIC SRAM
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

IDT7134SA45L48I Datasheet(HTML) 1 Page - Integrated Device Technology

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1
JUNE 1999
DSC-2720/9
IDT7134SA/LA
HIGH-SPEED
4K x 8 DUAL-PORT
STATIC SRAM
Features
x
x
x
x
x
High-speed access
– Military: 25/35/45/55/70ns (max.)
– Industrial: 55ns (max.)
– Commercial: 20/25/35/45/55/70ns (max.)
x
x
x
x
x
Low-power operation
– IDT7134SA
Active: 700mW (typ.)
Standby: 5mW (typ.)
– IDT7134LA
Active: 700mW (typ.)
Standby: 1mW (typ.)
x
x
x
x
x
Fully asynchronous operation from either port
x
x
x
x
x
Battery backup operation—2V data retention
x
x
x
x
x
TTL-compatible; single 5V (±10%) power supply
x
x
x
x
x
Available in 48-pin DIP, LCC, Flatpack and 52-pin PLCC
x
x
x
x
x
Military product compliant to MIL-PRF-38535 QML
x
x
x
x
x
Industrial temperature range (–40°C to +85°C) is available for
selected speeds
Functional Block Diagram
COLUMN
I/O
COLUMN
I/O
MEMORY
ARRAY
LEFT SIDE
ADDRESS
DECODE
LOGIC
RIGHT SIDE
ADDRESS
DECODE
LOGIC
R/
WL
OEL
A0L-A11L
I/O0L-I/O7L
2720 drw 01
CEL
A0R-A11R
I/O0R-I/O7R
OER
CER
R/
WR
Description
The IDT7134 is a high-speed 4K x 8 Dual-Port Static RAM
designedtobeusedinsystemswhereon-chiphardwareportarbitration
is not needed. This part lends itself to those systems which cannot
tolerate wait states or are designed to be able to externally arbitrate or
withstand contention when both sides simultaneously access the
same Dual-Port RAM location.
TheIDT7134providestwoindependentportswithseparatecontrol,
address, and I/O pins that permit independent, asynchronous access
forreadsorwritestoanylocationinmemory.Itistheuser’sresponsibility
to ensure data integrity when simultaneously accessing the same
memory location from both ports. An automatic power down feature,
controlled by CE, permits the on-chip circuitry of each port to enter a
very low standby power mode.
FabricatedusingIDT’sCMOShigh-performancetechnology,these
Dual-Port typically operate on only 700mW of power. Low-power (LA)
versions offer battery backup data retention capability, with each port
typically consuming 200µW from a 2V battery.
The IDT7134 is packaged on either a sidebraze or plastic 48-pin
DIP, 48-pin LCC, 52-pin PLCC and 48-pin Flatpack. Military grade
product is manufactured in compliance with the latest revision of MIL-
PRF-38535 QML, making it ideally suited to military temperature
applicationsdemandingthehighestlevelofperformanceandreliability.


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