© 2000 Fairchild Semiconductor Corporation

DS006392

www.fairchildsemi.com

August 1986

Revised March 2000

DM74LS151

1-of-8 Line Data Selector/Multiplexer

General Description

This data selector/multiplexer contains full on-chip decod-

ing to select the desired data source. The DM74LS151

selects one-of-eight data sources. The DM74LS151 has a

strobe input which must be at a low logic level to enable

these devices. A high level at the strobe forces the W out-

put HIGH, and the Y output LOW.

The DM74LS151 features complementary W and Y out-

puts.

Features

s Select one-of-eight data lines

s Performs parallel-to-serial conversion

s Permits multiplexing from N lines to one line

s Also for use as Boolean function generator

s Typical average propagation delay time data input to

W output 12.5 ns

s Typical power dissipation 30 mW

Ordering Code:

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

Connection Diagram

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

DM74LS151M

M16A

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

DM74LS151SJ

M16D

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

DM74LS151N

N16E

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

Inputs

Outputs

Select

Strobe

YW

CBA

S

XXX

H

L

H

LLLL

D0

D0

L

L

H

L

D1

D1

L

H

L

L

D2

D2

L

H

H

L

D3

D3

H

L

L

L

D4

D4

HL

HL

D5

D5

H

H

L

L

D6

D6

HHH

L

D7

D7