IDT71256SA25TP IDT, Integrated Device Technology Inc, IDT71256SA25TP Datasheet

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IDT71256SA25TP

Manufacturer Part Number
IDT71256SA25TP
Description
IC SRAM 256KBIT 25NS 28DIP
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet

Specifications of IDT71256SA25TP

Format - Memory
RAM
Memory Type
SRAM
Memory Size
256K (32K x 8)
Speed
25ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
28-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
71256SA25TP

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Features
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Functional Block Diagram
©2007 Integrated Device Technology, Inc.
32K x 8 advanced high-speed CMOS static RAM
Commercial (0° to 70°C) and Industrial (-40° to 85°C)
temperature options
Equal access and cycle times
– Commercial and Industrial: 12/15/20/25ns
One Chip Select plus one Output Enable pin
Bidirectional data inputs and outputs directly
Low power consumption via chip deselect
Commercial product available in 28-pin 300- and 600-mil
Plastic DIP, 300 mil Plastic SOJ and TSOP packages
Industrial product available in 28-pin 300 mil Plastic SOJ
and TSOP packages
TTL-compatible
I/O
A
A
A
A
A
0 -
A
A
A
A
A
A
A
A
A
A
10
11
12
13
14
0
1
2
3
4
5
6
7
8
9
I/O
WE
OE
CS
7
8
DECODER
ADDRESS
CONTROL
LOGIC
CMOS Static RAM
256K (32K x 8-Bit)
8
1
Description
as 32K x 8. It is fabricated using IDT’s high-perfomance, high-reliability
CMOS technology. This state-of-the-art technology, combined with
innovative circuit design techniques, provides a cost-effective solution for
high-speed memory needs.
6ns, with address access times as fast as 12ns. All bidirectional inputs and
outputs of the IDT71256SA are TTL-compatible and operation is from a
single 5V supply. Fully static asynchronous circuitry is used, requiring no
clocks or refresh for operation.
28-pin 300 mil Plastic SOJ and TSOP.
The IDT71256SA is a 262,144-bit high-speed Static RAM organized
The IDT71256SA has an output enable pin which operates as fast as
The IDT71256SA is packaged in 28-pin 300- and 600-mil Plastic DIP,
I/O CONTROL
262,144-BIT
MEMORY
ARRAY
2948 drw 01
IDT71256SA/TTSA
OCTOBER 2008
,
DSC-2948/09

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IDT71256SA25TP Summary of contents

Page 1

... It is fabricated using IDT’s high-perfomance, high-reliability CMOS technology. This state-of-the-art technology, combined with innovative circuit design techniques, provides a cost-effective solution for high-speed memory needs. The IDT71256SA has an output enable pin which operates as fast as 6ns, with address access times as fast as 12ns. All bidirectional inputs and outputs of the IDT71256SA are TTL-compatible and operation is from a single 5V supply ...

Page 2

IDT71256SA CMOS Static RAM 256K (32K x 8-Bit) Pin Configurations SO28 P28-2 ...

Page 3

IDT71256SA CMOS Static RAM 256K (32K x 8-Bit) DC Electrical Characteristics (V = 5.0V ± 10%) CC Symbol Parameter |I | Input Leakage Current Output Leakage Current LO V Output Low Voltage OL V Output High Voltage ...

Page 4

IDT71256SA CMOS Static RAM 256K (32K x 8-Bit) AC Electrical Characteristics Symbol Parameter Read Cycle t Read Cycle Time RC t Address Access Time AA t Chip Select Access Time ACS (1) Chip Select to Output in Low-Z t CLZ ...

Page 5

IDT71256SA CMOS Static RAM 256K (32K x 8-Bit) Timing Waveform of Read Cycle No. 1 ADDRESS OE CS DATA OUT SUPPLY CC CURRENT I SB Timing Waveform of Read Cycle No. 2 ADDRESS DATA PREVIOUS DATA OUT ...

Page 6

IDT71256SA CMOS Static RAM 256K (32K x 8-Bit) Timing Waveform of Write Cycle No. 1 (WE Controlled Timing) ADDRESS DATA (3) OUT DATA IN Timing Waveform of Write Cycle No. 2 (CS Controlled Timing) ADDRESS CS ...

Page 7

IDT71256SA CMOS Static RAM 256K (32K x 8-Bit) Ordering Information — Commercial 71256 Device Power Speed Type Ordering Information — Industrial 71256 Device Power Speed Package Type X XXX X Package Process/ Temperature Range ...

Page 8

IDT71256SA CMOS Static RAM 256K (32K x 8-Bit) Datasheet Document History 1/7/00 Pp Pg. 6 Pg. 8 08/09/00 02/01/01 09/30/04 Pg. 7 02/20/07 Pg. 7 10/13/08 Pg. 7 CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San ...

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