September 1983

Revised February 1999

MM74HC151

8-Channel Digital Multiplexer

General Description

The MM74HC151 high speed Digital multiplexer utilizes

advanced silicon-gate CMOS technology. Along with the

high noise immunity and low power dissipation of standard

CMOS integrated circuits, it possesses the ability to drive

10 LS-TTL loads. The MM74HC151 selects one of the 8

data sources, depending on the address presented on the

A, B, and C inputs. It features both true (Y) and comple-

ment (W) outputs. The STROBE input must be at a low

logic level to enable this multiplexer. A high logic level at

the STROBE forces the W output HIGH and the Y output

LOW.

The 74HC logic family is functionally as well as pin-out

compatible with the standard 74LS logic family. All inputs

are protected from damage due to static discharge by inter-

nal diode clamps to VCC and ground.

Features

s Typical propagation delay data select to output Y: 26 ns

s Wide operating supply voltage range: 2–6V

s Low input current: 1

µA maximum

s Low quiescent supply current: 80

µA maximum (74HC)

s High output drive current: 4 mA minimum

Ordering Code:

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Connection Diagram

Pin Assignments for DIP, SOIC, SOP and TSSOP

Top View

Truth Table

H

= HIGH Level, L = LOW Level, X = Don't Care

D0, D1...D7

= the level of the respective D input

Order Number

Package Number

Package Description

MM74HC151M

M16A

16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow

MM74HC151SJ

M16D

16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide

MM74HC151MTC

MTC16

16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

MM74HC151N

N16E

16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide

Inputs

Outputs

Select

Strobe

CBA

S

Y

W

XX

X

H

L

H

LL

L

L

D0

D0

LL

H

L

D1

D1

LH

L

L

D2

D2

LH

H

L

D3

D3

HL

L

L

D4

D4

HL

H

L

D5

D5

HH

L

L

D6

D6

HHH

L

D7

D7