IN74HC640ADW datasheet, PDF - EEWORLD Datasheet

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IN74HC640ADW: DescriptionBus Driver/Transceiver; Categorylogic logic; File Size108KB，5 Pages; ManufacturerINTEGRAL; Websitehttp://www.integral.by/english.phtml

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IN74HC640ADW Overview

Bus Driver/Transceiver

IN74HC640ADW Parametric

Parameter Name	Attribute value
Maker	INTEGRAL
package instruction	,
Reach Compliance Code	unknown
Base Number Matches	1

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TECHNICAL DATA

IN74HC640A

Octal 3-State Inverting

Bus Transceiver

High-Performance Silicon-Gate CMOS

The IN74HC640A is identical in pinout to the LS/ALS640. The

device inputs are compatible with standard CMOS outputs; with pullup

resistors, they are compatible with LS/ALSTTL outputs.

The IN74HC640A is a 3-state transceiver that is used for 2-way

asynchronous communication between data buses. The device has an

active-low Output Enable pin, which is used to place the I/O ports into

high-impedance states. The Direction control determines whether data

flows from A to B or from B to A.

•

Outputs Directly Interface to CMOS, NMOS, and TTL

•

Operating Voltage Range: 2.0 to 6.0 V

•

Low Input Current: 1.0

µA

•

High Noise Immunity Characteristic of CMOS Devices

ORDERING INFORMATION

IN74HC640AN Plastic

IN74HC640ADW SOIC

= -55° to 125° C for all packages

PIN ASSIGNMENT

LOGIC DIAGRAM

FUNCTION TABLE

Control Inputs

PIN 20=V

PIN 10 = GND

Output

Enable

Direction

Operation

Data Transmitted

from Bus B to

Bus A (inverted)

Data Transmitted

from Bus A to

Bus B (inverted)

Buses Isolated

(High Impedance

State)

X = don’t care

451

IN74HC640ADW Related Products

	IN74HC640ADW	IN74HC640AN
Description	Bus Driver/Transceiver	Bus Driver/Transceiver
Maker	INTEGRAL	INTEGRAL
Reach Compliance Code	unknown	unknown
Base Number Matches	1	1

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