TL F 6425
54LS352DM74LS352
Dual
4-Line
to
1-Line
Data
SelectorsMultiplexers
June 1989
54LS352 DM74LS352 Dual 4-Line to
1-Line Data Selectors Multiplexers
General Description
Each of these data selectors multiplexers contains invert-
ers and drivers to supply fully complementary on-chip bi-
nary decoding data selection to the AND-OR-invert gates
Separate strobe inputs are provided for each of the two
four-line sections
Features
Y
Inverting version of DM54 74LS153
Y
Permits multiplexing from N lines to 1 line
Y
Performs parallel-to-serial conversion
Y
Strobe (enable) line provided for cascading (N lines to
n lines)
Y
High fan-out low-impedance totem-pole outputs
Y
Typical average propagation delay times
From data 15 ns
From strobe 19 ns
From select 22 ns
Y
Typical power dissipation 31 mW
Connection Diagram
Dual-In-Line Package
TL F 6425 1
Order Number 54LS352DMQB 54LS352FMQB
DM74LS352M or DM74LS352N
See NS Package Number J16A M16A N16E or W16A
Function Table
Select
Data Inputs
Strobe
Output
Inputs
B
A
C0
C1
C2
C3
G
Y
X
X
X
X
X
X
H
H
L
L
L
X
X
X
L
H
L
L
H
X
X
X
L
L
L
H
X
L
X
X
L
H
L
H
X
H
X
X
L
L
H
L
X
X
L
X
L
H
H
L
X
X
H
X
L
L
H
H
X
X
X
L
L
H
H
H
X
X
X
H
L
L
Select inputs A and B are common to both sections
H
e
High Level L
e
Low Level X
e
Don't Care
C1995 National Semiconductor Corporation
RRD-B30M105 Printed in U S A
Absolute Maximum Ratings
(Note)
If Military Aerospace specified devices are required
please contact the National Semiconductor Sales
Office Distributors for availability and specifications
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
54LS
b
55 C to
a
125 C
DM74LS
0 C to
a
70 C
Storage Temperature Range
b
65 C to
a
150 C
Note
The ``Absolute Maximum Ratings'' are those values
beyond which the safety of the device cannot be guaran-
teed The device should not be operated at these limits The
parametric values defined in the ``Electrical Characteristics''
table are not guaranteed at the absolute maximum ratings
The ``Recommended Operating Conditions'' table will define
the conditions for actual device operation
Recommended Operating Conditions
Symbol
Parameter
54LS352
DM74LS352
Units
Min
Nom
Max
Min
Nom
Max
V
CC
Supply Voltage
4 5
5
5 5
4 75
5
5 25
V
V
IH
High Level Input Voltage
2
2
V
V
IL
Low Level Input Voltage
0 7
0 8
V
I
OH
High Level Output Current
b
0 4
b
0 4
mA
I
OL
Low Level Output Current
12
8
mA
T
A
Free Air Operating Temperature
b
55
125
0
70
C
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 1)
V
I
Input Clamp Voltage
V
CC
e
Min I
I
e b
18 mA
b
1 5
V
V
OH
High Level Output
V
CC
e
Min I
OH
e
Max
54LS
2 5
V
Voltage
V
IL
e
Max V
IH
e
Min
DM74
2 7
3 4
V
OL
Low Level Output
V
CC
e
Min I
OL
e
Max
54LS
0 4
Voltage
V
IL
e
Max V
IH
e
Min
DM74
0 35
0 5
V
I
OL
e
4 mA
DM74
0 25
0 4
V
CC
e
Min
I
I
Input Current
Max
V
CC
e
Max V
I
e
10V
54LS
0 1
mA
Input Voltage
V
CC
e
Max V
I
e
7V
DM74
I
IH
High Level Input Current
V
CC
e
Max V
I
e
2 7V
20
m
A
I
IL
Low Level Input Current
V
CC
e
Max V
I
e
0 4V
b
0 4
mA
I
OS
Short Circuit
V
CC
e
Max
54LS
b
20
b
100
mA
Output Current
(Note 2)
DM74
b
20
b
100
I
CC
Supply Current
V
CC
e
Max (Note 3)
6 2
10
mA
Note 1
All typicals are at V
CC
e
5V T
A
e
25 C
Note 2
Not more than one output should be shorted at a time and the duration should not exceed one second
Note 3
I
CC
is measured with all outputs open and all other inputs at ground
2
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