DM74LS157E National Semiconductor, DM74LS157E Datasheet - Page 3

• Manufacturer Part Number: DM74LS157E
• Description: Quad 2-Line to 1-Line Data Selectors/Multiplexers
• Manufacturer: National Semiconductor

’LS157 Switching Characteristics
at V
Recommended Operating Conditions
’LS158 Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
V
V
V
I
I
I
I
I
Note 1 All typicals are at V
Note 2 Not more than one output should be shorted at a time and the duration should not exceed one second
Note 3 I
Symbol
V
V
V
I
I
T
I
IH
IL
OS
CC
OH
OL
Symbol
t
t
t
t
t
t
I
OH
OL
PLH
PHL
PLH
PHL
PLH
PHL
CC
IH
IL
A
CC
CC
e
is measured with 4 5V applied to all inputs and all outputs open
5V and T
Input Clamp Voltage
High Level Output
Voltage
Low Level Output
Voltage
Input Current
Input Voltage
High Level Input
Current
Low Level Input
Current
Short Circuit
Output Current
Supply Current
Supply Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Output Current
Low Level Output Current
Free Air Operating Temperature
Propagation Delay Time
Low to High Level Output
Propagation Delay Time
High to Low Level Output
Propagation Delay Time
Low to High Level Output
Propagation Delay Time
High to Low Level Output
Propagation Delay Time
Low to High Level Output
Propagation Delay Time
High to Low Level Output
Parameter
A
CC
e
Parameter
e
25 C (See Section 1 for Test Waveforms and Output Load)
Parameter
5V T
Max
A
e
25 C
V
V
V
V
V
I
V
V
V
V
V
V
V
(Note 2)
V
OL
CC
CC
IL
CC
IL
CC
I
CC
I
CC
I
CC
CC
e
e
e
e
e
e
e
e
e
e
e
e
e
e
7V
2 7V
0 4V
Max V
Max V
4 mA V
Min I
Min I
Min I
Max
Max
Max
Max
Max (Note 3)
From (Input)
To (Output)
b
Strobe
Strobe
Min
Conditions
Select
Select
I
OH
OL
4 5
IH
IH
Data
Data
2
e b
CC
to Y
to Y
to Y
to Y
to Y
to Y
55
e
e
e
e
e
Min
Min
Max
18 mA
Max
DM54LS158
Min
3
Nom
5
DM54
DM74
DM74
S or G
A or B
S or G
A or B
S or G
A or B
DM54
DM74
DM54
DM74
Min
C
L
b
Max
125
5 5
0 7
e
4
0 4
15 pF
Max
b
b
Min
14
14
20
21
23
27
2 5
2 7
20
20
R
4 75
Min
L
2
0
e
2 k
DM74LS158
(Note 1)
Min
0 25
0 35
0 25
Typ
3 4
3 4
4 8
Nom
C
L
5
e
50 pF
Max
18
23
24
30
28
32
b
b
b
b
b
b
Max
5 25
Max
0 8
0 4
0 5
0 4
0 2
0 1
70
40
20
8
0 8
100
100
0 4
8
1 5
0 4
Units
Units
Units
ns
ns
ns
ns
ns
ns
mA
mA
mA
mA
mA
mA
V
V
V
V
V
V
C
A