IDT71256L35YI8

IDT71256L35YI8 Datasheet


IDT71256S IDT71256L

Part Datasheet
IDT71256L35YI8 IDT71256L35YI8 IDT71256L35YI8 (pdf)
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IDT71256L35Y8 IDT71256L35Y8 IDT71256L35Y8
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PDF Datasheet Preview
CMOS Static RAM 256K 32K x 8-Bit

IDT71256S IDT71256L

High-speed address/chip select time Military 25/35/45/55/70/85/100ns max. Industrial 25/35ns max. Commercial 20/25/35ns max. low power only

Low-power operation Battery Backup operation 2V data retention Produced with advanced high-performance CMOS
technology Input and output directly TTL-compatible Available in standard 28-pin 300 or 600 mil ceramic DIP,
28-pin 600 mil plastic DIP, 28-pin 300 mil SOJ and 32-pin LCC Military product compliant to MIL-STD-883, Class B

Functional Block Diagram

The IDT 71256 is a 262,144-bit high-speed static RAM organized as 32K x It is fabricated using IDT's high-performance, high-reliability CMOS technology.

Address access times as fast as 20ns are available with power consumption of only 350mW typ. . The circuit also offers a reduced power standby mode. When CS goes HIGH, the circuit will automatically go to and remain in, a low-power standby mode as long as CS remains HIGH. In the full standby mode, the low-power device consumes less than 15µW, typically. This capability provides significant system level power and cooling savings. The low-power L version also offers a battery backup data retention capability where the circuit typically consumes only 5µW when operating off a 2V battery.

The IDT71256 is packaged in a 28-pin 300 or 600 mil ceramic DIP, a 28-pin 300 mil SOJ, a 28-pin 600 mil plastic DIP, and a 32-pin LCC providing high board level packing densities.

ADDRESS DECODER
262,144 BIT MEMORY ARRAY

I/O0

INPUT

I/O CONTROL

DATA

CIRCUIT

I/O7

CONTROL

CIRCUIT
2946 drw 01
2000 Integrated Device Technology, Inc.

FEBRUARY 2001

DSC-2946/9

IDT71256S/L CMOS Static RAM 256K 32K x 8-Bit

Pin Configurations

A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O0 I/O1 I/O2 GND
6 D28-3 23 7 P28-1 22
8 D28-1 21 9 SO28-5 20

VCC WE

A13 A8

A9 A11 OE A10 CS I/O7 I/O6 I/O5 I/O4 I/O3
2946 drw 02

DIP/SOJ Top View

A7 A12 A1 A14 NC V VCC A WE A13

INDEX

A6 A5 A4 A3 A2 A1 A0 NC I/O0
4 3 2 32 31 30

L32-1
14 15 16 17 18 19 20

A8 A9 A11 NC OE A10 CS I/O7 I/O8
Ordering Information Commercial & Industrial

IDT 71256

Device Type

X Power

XX Speed

XXX Package

Process/ Temperature

Range

Blank Commercial 0°C to +70°C

Industrial -40°C to +85°C
300 mil SOJ SO28-5
600 mil Plastic DIP P28-1
300 mil SOJ Only, Commercial Only Speed in nanoseconds

Low Power Only
2946 drw 13
Ordering Information Military

IDT 71256

Device Type

X Power

XXX Speed

XXX Package

Process/ Temperature

Range

Military to +125°C

Compliant to MIL-STD-883, Class B

TD 300 mil CERDIP D28-3
600 mil CERDIP D28-1

L32 Leadless Chip Carrier 32-pin L32-1

Speed in nanoseconds

Standard Power

Low Power
2946 drw 12

IDT71256S/L CMOS Static RAM 256K 32K x 8-Bit

Datasheet Document History

Military, Commercial, and Industrial Temperature Ranges
11/4/99
08/09/00 02/01/01

Pp. 9 Pg. 1 Pg. 2 Pg. 3

Pg. 5

Pg. 6

Pg. 8 Pg. 9 Pg. 10
CORPORATE HEADQUARTERS 6024 Silver Creek Valley Road San Jose, CA 95138
for SALES 800-345-7015 or 408-284-8200 fax 408-284-2775

The IDT logo is a registered trademark of Integrated Device Technology, Inc.
for Tech Support 800-345-7015
More datasheets: ILD2035E6327HTSA1 | HOA2004-001 | IDT71256L35Y8 | IDT71256L35YI | IDT71256L35Y | IDT71256L25YI8 | IDT71256L25YI | IDT71256L25Y | IDT71256L20Y8 | IDT71256L20Y


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Datasheet ID: IDT71256L35YI8 636634