IN74HC251N datasheet, PDF - EEWORLD Datasheet

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IN74HC251N: Description8-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS; Categorylogic logic; File Size147KB，5 Pages; ManufacturerINTEGRAL; Websitehttp://www.integral.by/english.phtml

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IN74HC251N Overview

8-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS

IN74HC251N Parametric

Parameter Name	Attribute value
Maker	INTEGRAL
package instruction	,
Reach Compliance Code	unknow

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IN74HC251A

8-I

NPUT

ATA

ELECTOR

ULTIPLEXER

WITH

3-S

TATE

UTPUTS

High-Performance Silicon-Gate CMOS

The IN74HC251 is identical in pinout to the LS/ALS251. The

device inputs are compatible with standard CMOS outputs; with

pullup resistors, they are compatible with LS/ALSTTL outputs.

The device selects one of the eight binary Data Inputs, as

determined by the Address Inputs. The Output Enable pin must

be at a low level for the selected data to appear at the outputs. If

Output Enable is high, the Y and the Y outputs are in the high-

impedance state. This 3-State feature allows the IN74HC251 to

be used in bus-oriented systems.

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

IN74HC251N Plastic

IN74HC251D SOIC

= -55° to 125° C for all

packages

PIN ASSIGNMENT

LOGIC DIAGRAM

FUNCTION TABLE

Inputs

Outputs

PIN 16 =V

PIN 8 = GND

D0,D1...D7=the level of the

respective D input

Z = high-impedance state

X = don’t care

IN74HC251N Related Products

	IN74HC251N	IN74HC251A
Description	8-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS	8-INPUT DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS

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