Philips HEF4512BU, HEF4512BT, HEF4512BPB, HEF4512BP, HEF4512BDB Datasheet

DATA SH EET

Product specification
File under Integrated Circuits, IC04

January 1995

INTEGRATED CIRCUITS

HEF4512B
MSI

8-input multiplexer with 3-state
output

For a complete data sheet, please also download:

•The IC04 LOCMOS HE4000B Logic
Family Specifications HEF, HEC

•The IC04 LOCMOS HE4000B Logic
Package Outlines/Information HEF, HEC

January 1995 2

Philips Semiconductors Product specification

8-input multiplexer with 3-state output

HEF4512B

MSI

DESCRIPTION

The HEF4512B is an 8-input multiplexer with 8 binary
inputs (I0to I7), an enable input (E) and an output enable
input (EO). One of eight binary inputs is selected by select
inputs S0, S1and S2, and is routed to the output O. A HIGH
on EO causes O to assume a high impedance OFF-state,
regardless of other input conditions. This allows the output

to interface directly with bus oriented systems (3-state).
When the active LOW enable (

E) is HIGH, it forces the
output LOW provided EO is LOW. By proper manipulation
of the inputs, the device can provide any logic functions of
four variables. It cannot be used to multiplex analogue
signals.

Fig.1 Functional diagram.

HEF4512BP(N): 16-lead DIL; plastic

(SOT38-1)

HEF4512BD(F): 16-lead DIL; ceramic (cerdip)

(SOT74)

HEF4512BT(D): 16-lead SO; plastic

(SOT109-1)

( ): Package Designator North America

Fig.2 Pinning diagram.

PINNING

FAMILY DATA, I

DD

LIMITS category MSI

See Family Specifications

S

0,S1

, S

2

select inputs
EO output enable (active LOW)
E enable (active LOW)
I

0

to I

7

multiplexer inputs
O multiplexer output

January 1995 3

Philips Semiconductors Product specification

8-input multiplexer with 3-state output

HEF4512B

MSI

This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in

_white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in

white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ...

Fig.3 Logic diagram.