© 2000 Fairchild Semiconductor Corporation DS006392 www.fairchildsemi.com
August 1986
Revised March 2000
DM74LS151
1-
of-
8
Li
ne
Data
Sele
ctor
/Mult
i
p
lexer
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
a73 Select one-of-eight data lines
a73 Performs parallel-to-serial conversion
a73 Permits multiplexing from N lines to one line
a73 Also for use as Boolean function generator
a73 Typical average propagation delay time data input to
W output 12.5 ns
a73 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
CBAS
XXXHLH
LLLLD0D0
L L H L D1 D1
L H L L D2 D2
L H H L D3 D3
H L L L D4 D4
HLHLD5D5
H H L L D6 D6
HHHLD7D7