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IDT7134LA70C

Description
4K X 8 DUAL-PORT SRAM, 55 ns, PDIP48
Categorystorage   
File Size149KB,11 Pages
ManufacturerIDT (Integrated Device Technology, Inc.)
Websitehttp://www.idt.com/
Download Datasheet Parametric View All

IDT7134LA70C Overview

4K X 8 DUAL-PORT SRAM, 55 ns, PDIP48

IDT7134LA70C Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals48
Maximum operating temperature85 Cel
Minimum operating temperature-40 Cel
Maximum supply/operating voltage5.5 V
Minimum supply/operating voltage4.5 V
Rated supply voltage5 V
maximum access time55 ns
Processing package descriptionPlastic, DIP-48
stateACTIVE
CraftsmanshipCMOS
packaging shapeRectangle
Package SizeIN-line
Terminal formTHROUGH-hole
Terminal spacing2.54 mm
terminal coatingtin lead
Terminal locationpair
Packaging MaterialsPlastic/Epoxy
Temperature levelINDUSTRIAL
memory width8
organize4K × 8
storage density32768 deg
operating modeASYNCHRONOUS
Number of digits4096 words
Number of digits4K
Memory IC typedual-port static random access memory
serial parallelparallel
HIGH-SPEED
4K x 8 DUAL-PORT
STATIC SRAM
Features
High-speed access
– Military: 25/35/45/55/70ns (max.)
– Industrial: 55ns (max.)
– Commercial: 20/25/35/45/55/70ns (max.)
Low-power operation
– IDT7134SA
Active: 700mW (typ.)
Standby: 5mW (typ.)
– IDT7134LA
Active: 700mW (typ.)
Standby: 1mW (typ.)
Fully asynchronous operation from either port
Battery backup operation—2V data retention
TTL-compatible; single 5V (±10%) power supply
Available in 48-pin DIP, LCC, Flatpack and 52-pin PLCC
Military product compliant to MIL-PRF-38535 QML
Industrial temperature range (–40°C to +85°C) is available for
selected speeds
IDT7134SA/LA
Description
x
x
x
x
x
x
x
x
The IDT7134 is a high-speed 4K x 8 Dual-Port Static RAM
designed to be used in systems where on-chip hardware port arbitration
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.
The IDT7134 provides two independent ports with separate control,
address, and I/O pins that permit independent, asynchronous access
for reads or writes to any location in memory. It is the user’s responsibility
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.
Fabricated using IDT’s CMOS high-performance technology, 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
applications demanding the highest level of performance and reliability.
Functional Block Diagram
R/W
L
CE
L
R/W
R
CE
R
OE
L
I/O
0L
- I/O
7L
COLUMN
I/O
COLUMN
I/O
OE
R
I/O
0R
- I/O
7R
A
0L
- A
11L
LEFT SIDE
ADDRESS
DECODE
LOGIC
MEMORY
ARRAY
RIGHT SIDE
ADDRESS
DECODE
LOGIC
A
0R
- A
11R
2720 drw 01
JUNE 1999
1
DSC-2720/9
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