HEF4519B 查看數據表（PDF） - Philips Electronics

零件编号

产品描述 (功能)

生产厂家

HEF4519B

Quadruple 2-input multiplexer

Philips Electronics 

Philips Semiconductors

Quadruple 2-input multiplexer

Product specification

HEF4519B

MSI

DESCRIPTION

The HEF4519B provides four multiplexing circuits with

common select inputs (SA, SB); each circuit contains two

inputs (An, Bn) and one output (On). It may be used to

select four bits of information from one of two sources.

The ‘A’ inputs are selected when SA is HIGH, the ‘B’ inputs

when SB is HIGH. When SA and SB are HIGH, the output

(On) is the logical EXCLUSIVE-NOR of the An and

Bn inputs (On = An Bn).

When SA and SB are LOW, the output (On) is LOW,

independent of the multiplexer inputs (An and Bn).

The HEF4519B cannot be used to multiplex analogue

signals. The outputs utilize standard buffers for best

performance.

Fig.1 Functional diagram.

Fig.2 Pinning diagram.

PINNING

SA, SB

A0 to A3

Bo to B3

O0 to O3

selects inputs (active HIGH)

multiplexer inputs

multiplexer inputs

multiplexer outputs

FAMILY DATA, IDD LIMITS category MSI

See Family Specifications

HEF4519BP(N): 16-lead DIL; plastic (SOT38-1)

HEF4519BD(F): 16-lead DIL; ceramic (cerdip)

(SOT74)

HEF4519BT(D): 16-lead SO; plastic (SOT109-1)

( ): Package Designator North America

January 1995

2

Share Link: