IDT71256S100DB IDT, Integrated Device Technology Inc, IDT71256S100DB Datasheet

IDT71256S100DB

Manufacturer Part Number

IDT71256S100DB

Description

Manufacturer

IDT, Integrated Device Technology Inc

Datasheet

1.IDT71256S100DB.pdf (10 pages)

Specifications of IDT71256S100DB

Density

256Kb

Access Time (max)

100ns

Sync/async

Asynchronous

Architecture

Not Required

Clock Freq (max)

Not RequiredMHz

Operating Supply Voltage (typ)

Address Bus

15b

Package Type

CDIP

Operating Temp Range

-55C to 125C

Number Of Ports

Supply Current

135mA

Operating Supply Voltage (min)

4.5V

Operating Supply Voltage (max)

5.5V

Operating Temperature Classification

Military

Mounting

Through Hole

Pin Count

Word Size

Number Of Words

32K

Lead Free Status / RoHS Status

Not Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

BOSTOCK HK LIMITED

Part Number:

IDT71256S100DB

Manufacturer:

INTERSIL

Quantity:

780

Company:

BOSTOCK HK LIMITED

Part Number:

IDT71256S100DB

Manufacturer:

IDT

Quantity:

624

Company:

Meier Automation Equipment Co., Limited

Part Number:

IDT71256S100DB

Manufacturer:

IDT

Quantity:

20 000

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Features

Functional Block Diagram

I/O

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

CONTROL

CIRCUIT

DECODER

ADDRESS

CIRCUIT

INPUT

DATA

CMOS Static RAM

256K (32K x 8-Bit)

Description

32K x 8. It is fabricated using IDT's high-performance, high-reliability

CMOS technology.

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 15 W,

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 5 W

when operating off a 2V battery.

a 28-pin 300 mil SOJ, a 28-pin (600 mil) plastic DIP, and a 32-pin LCC

providing high board level packing densities.

latest revision of MIL-STD-883, Class B, making it ideally suited to military

temperature applications demanding the highest level of performance and

reliability.

The IDT 71256 is a 262,144-bit high-speed static RAM organized as

Address access times as fast as 20ns are available with power

The IDT71256 is packaged in a 28-pin (300 or 600 mil) ceramic DIP,

The IDT71256 military RAM is manufactured in compliance with the

MEMORY ARRAY

I/O CONTROL

262,144 BIT

NOVEMBER 2008

GND

IDT71256S

IDT71256L

2946 drw 01

DSC-2946/11

Related parts for IDT71256S100DB

IDT71256S100DB Summary of contents

Page 1

Features 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 ...

Page 2

IDT71256S/L CMOS Static RAM 256K (32K x 8-Bit) Pin Configurations D28 P28 D28 SO28 ...

Page 3

IDT71256S/L CMOS Static RAM 256K (32K x 8-Bit) Recommended Operating Temperature and Supply Voltage Grade Temperature O O Military - +125 Industrial - + Commercial +70 C ...

Page 4

IDT71256S/L CMOS Static RAM 256K (32K x 8-Bit) AC Test Conditions Input Pulse Levels Input Rise/Fall Times Input Timing Reference Levels Output Reference Levels AC Test Load 5V DATA OUT 255 Figure 1. AC Test Load DC Electrical Characteristics Symbol ...

Page 5

IDT71256S/L CMOS Static RAM 256K (32K x 8-Bit) Low V Data Retention Waveform CDR CS AC Electrical Characteristics Symbol Parameter Read Cycle t Read Cycle Time RC t Address Access Time AA t Chip Select Access ...

Page 6

IDT71256S/L 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 (2) Chip Select to Output in Low-Z t CLZ ...

Page 7

IDT71256S/L CMOS Static RAM 256K (32K x 8-Bit) Timing Waveform of Read Cycle No. 1 ADDRESS OE CS DATA OUT Timing Waveform of Read Cycle No. 2 ADDRESS DATA OUT Timing Waveform of Read Cycle No DATA OUT ...

Page 8

IDT71256S/L CMOS Static RAM 256K (32K x 8-Bit) Timing Waveform of Write Cycle No. 1 (WE Controlled Timing) ADDRESS DATA OUT DATA IN Timing Waveform of Write Cycle No. 2 (CS Controlled Timing) ADDRESS CS ...

Page 9

IDT71256S/L CMOS Static RAM 256K (32K x 8-Bit) Ordering Information — Commercial & Industrial Ordering Information — Military Military, Commercial, and Industrial Temperature Ranges 6.42 9 ...

Page 10

IDT71256S/L CMOS Static RAM 256K (32K x 8-Bit) Datasheet Document History 11/4/99 Updated to new format Pp. 1–5, 9 Added Industrial Temperature Range offerings Pg. 1 Removed 30, 120, and 150ns military and 45ns commercial speed grade offerings. Pg. 2 ...

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