
TL/F/6546
5
June 1989
54150/DM54150/DM74150,
54151A/DM54151A/DM74151A
Data Selectors/Multiplexers
General Description
These data selectors/multiplexers contain full on-chip de-
coding to select the desired data source. The 150 selects
one-of-sixteen data sources; the 151A selects one-of-eight
data sources. The 150 and 151A have a strobe input which
must be at a low logic level to enable these devices. A high
level at the strobe forces the W output high and the Y output
(as applicable) low.
The 151A features complementary W and Y outputs, where-
as the 150 has an inverted (W) output only.
The 151A incorporates address buffers which have sym-
metrical propagation delay times through the complementa-
ry paths. This reduces the possibility of transients occurring
at the output(s) due to changes made at the select inputs,
even when the 151A outputs are enabled (i.e., strobe low).
Features
Y
150 selects one-of-sixteen data lines
Y
151A selects one-of-eight data lines
Y
Performs parallel-to-serial conversion
Y
Permits multiplexing from N lines to one line
Y
Also for use as Boolean function generator
Y
Typical average propagation delay time, data input to W
output
150
11 ns
151A
9 ns
Y
Typical power dissipation
150
200 mW
151A
135 mW
Y
Alternate Military/Aerospace device (54150, 54151A) is
available. Contact a National Semiconductor Sales Of-
fice/Distributor for specifications.
Connection Diagrams
Dual-In-Line Package
TL/F/6546–1
Order Number 54150DQMB, 54150FMQB,
DM54150J or DM74150N
See NS Package Number J24A, N24A or W24C
Dual-In-Line Package
TL/F/6546–2
Order Number 54151ADMQB, 54151AFMQB,
DM54151AJ, DM54151AW or DM74151AN
See NS Package Number J16A, N16E or W16A
C
1995 National Semiconductor Corporation
RRD-B30M105/Printed in U. S. A.