dm74ls158 National Semiconductor Corporation, dm74ls158 Datasheet

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dm74ls158

Manufacturer Part Number
dm74ls158
Description
Quad 2-line To 1-line Data Selectors/multiplexers
Manufacturer
National Semiconductor Corporation
Datasheet

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Part Number:
dm74ls158M
Manufacturer:
SILICONIX
Quantity:
52
C 1995 National Semiconductor Corporation
54LS157 DM54LS157 DM74LS157
54LS158 DM54LS158 DM74LS158
Quad 2-Line to 1-Line Data Selectors Multiplexers
General Description
These data selectors multiplexers contain inverters and
drivers to supply full on-chip data selection to the four out-
put gates A separate strobe input is provided A 4-bit word
is selected from one of two sources and is routed to the four
outputs The LS157 presents true data whereas the LS158
presents inverted data to minimize propagation delay time
Applications
Y
Y
Y
Y
Connection Diagrams
Function Table
Expand any data input point
Multiplex dual data buses
Generate four functions of two variables (one variable
is common)
Source programmable counters
Order Number 54LS157DMQB 54LS157FMQB
54LS157LMQB DM54LS157J DM54LS157W
See NS Package Number E20A J16A
DM74LS157M or DM74LS157N
Dual-In-Line Package
M16A N16E or W16A
TL F 6396
H
e
Strobe
High Level L
H
L
L
L
L
Select
Inputs
e
X
H
H
L
L
TL F 6396 – 1
Low Level X
A
H
X
L
X
X
e
Don’t Care
Features
Y
Y
Y
Y
B
X
X
X
H
L
Buffered inputs and outputs
Typical Propagation Time
LS157 9 ns
LS158 7 ns
Typical Power Dissipation
LS157 49 mW
LS158 24 mW
Alternate
54LS158) is available Contact a National Semiconduc-
tor Sales Office Distributor for specifications
Order Number 54LS158DMQB 54LS158FMQB
54LS158LMQB DM54LS158J DM54LS158W
LS157
See NS Package Number E20A J16A
H
H
L
L
L
Output Y
DM74LS158M or DM74LS158N
Military Aerospace
Dual-In-Line Package
M16A N16E or W16A
LS158
H
H
H
L
L
device
RRD-B30M105 Printed in U S A
June 1989
(54LS157
TL F 6396 – 2

Related parts for dm74ls158

dm74ls158 Summary of contents

Page 1

... Military Aerospace Y 54LS158) is available Contact a National Semiconduc- tor Sales Office Distributor for specifications Dual-In-Line Package TL F 6396 – 1 Order Number 54LS158DMQB 54LS158FMQB 54LS158LMQB DM54LS158J DM54LS158W DM74LS158M or DM74LS158N See NS Package Number E20A J16A M16A N16E or W16A Inputs Output Y Select A B LS157 ...

Page 2

Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Supply Voltage Input Voltage Operating Free Air Temperature Range DM54LS and 54LS DM74LS Storage ...

Page 3

... DM74 20 b Max (Note Units e L Min Max DM74LS158 Units Nom Max Typ Max Units (Note ...

Page 4

Switching Characteristics and (See Section 1 for Test Waveforms and Output Load Symbol Parameter t Propagation Delay Time PLH Low to High Level Output t Propagation Delay Time PHL ...

Page 5

5 ...

Page 6

Physical Dimensions inches (millimeters) Ceramic Leadless Chip Carrier Package (E) Order Number 54LS157LMQB or 54LS158LMQB 16-Lead Ceramic Dual-In-Line Package (J) Order Number 54LS157DMQB 54LS158DMQB DM54LS157J or DM54LS158J NS Package Number E20A NS Package Number J16A 6 ...

Page 7

... Physical Dimensions inches (millimeters) (Continued) 16-Lead Small Outline Molded Package (M) Order Number DM74LS157M or DM74LS158M 16-Lead Molded Dual-In-Line Package (N) Order Number DM74LS157N or DM74LS158N NS Package Number M16A NS Package Number N16E 7 ...

Page 8

Physical Dimensions inches (millimeters) (Continued) 16-Lead Ceramic Flat Package (W) Order Number 54LS157FMQB 54LS158FMQB DM54LS157W or DM54LS158W LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN ...

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