CY7C172A-45DMB Cypress Semiconductor Corporation., CY7C172A-45DMB Datasheet

CY7C172A-45DMB

Manufacturer Part Number

CY7C172A-45DMB

Description

Manufacturer

Cypress Semiconductor Corporation.

Datasheet

1.CY7C172A-20DMB.pdf (9 pages)

Specifications of CY7C172A-45DMB

Date_code

00+

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

CY7C172A-45DMB

Manufacturer:

Quantity:

1 562

Current page: 1 of 9
Download datasheet (166Kb)

Features

Selection Guide

Cypress Semiconductor Corporation

Maximum Access Time (ns)

Maximum Operating

Current (mA)

• Automatic power-down when deselected

• CMOS for optimum speed/power

• High speed

• Transparent write (7C171A)

• Low active power

• Low standby power

• TTL-compatible inputs and outputs

• Capable of withstanding greater than 2001V electrostat-

ic discharge

— t

— 375 mW

— 93 mW

Logic Block Diagram

= 15 ns

INPUT BUFFER

DECODER

128 x 128

COLUMN

ARRAY

Commercial

Military

POWER

DOWN

•

3901 North First Street

7C171A-15

7C172A-15

115

7C172A

7C171A

Functional Description

The CY7C171A and CY7C172A are high-performance CMOS

static RAMs organized as 4096 by 4 bits with separate I/O.

Easy memory expansion is provided by an active LOW chip

enable (CE) and three-state drivers. They have an automatic

power-down feature, reducing the power consumption by 77%

when deselected.

Writing to the device is accomplished when the chip enable

(CE) and write enable (WE) inputs are both LOW. Data on the

four input/output pins (I

location specified on the address pins (A

Reading the device is accomplished by taking chip enable

(CE) LOW, while write enable (WE) remains HIGH. Under

these conditions the contents of the memory location specified

on the address pins will appear on the four data output pins.

The output pins remain in a high-impedance state when write

enable (WE) is LOW (7C172A only), or chip enable is HIGH.

A die coat is used to insure alpha immunity.

7C171A-20

7C172A-20

C171A–1

•

San Jose

7C171A-25

7C172A-25

Pin Configurations

November 1988 - Revised April 1995

through I

GND

•

4K x 4 Static RAM

with Separate I/O

CA 95134

Top View

DIP/SOJ

7C171A-35

7C172A-35

7C171A

7C172A

) is written into the memory

CY7C171A

CY7C172A

through A

•

408-943-2600

7C171A-45

7C172A-45

C171A–2

Related parts for CY7C172A-45DMB

Related keywords

CY7C172A-45DMB datasheet
CY7C172A-45DMB data sheet
CY7C172A-45DMB pdf datasheet
CY7C172A-45DMB component
CY7C172A-45DMB part
CY7C172A-45DMB distributor
CY7C172A-45DMB RoHS
CY7C172A-45DMB datasheet download