Absolute Maximum Ratings (Note)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales
Office/Distributors for availability and specifications.
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.
Supply Voltage
Input Voltage
7V
7V
Operating Free Air Temperature Range
DM54LS and 54LS
DM74LS
b
b
a
a
55 C to 125 C
§
§
0 C to 70 C
§
§
a
65 C to 150 C
Storage Temperature Range
§
§
Recommended Operating Conditions
DM54LS10
DM74LS10
Symbol
Parameter
Units
Min
4.5
2
Nom
Max
Min
4.75
2
Nom
Max
V
V
V
Supply Voltage
5
5.5
5
5.25
V
V
CC
High Level Input Voltage
Low Level Input Voltage
High Level Output Current
Low Level Output Current
Free Air Operating Temperature
IH
0.7
0.8
V
IL
b
b
0.4
I
I
0.4
mA
mA
OH
OL
4
8
b
T
A
55
125
0
70
C
§
Electrical Characteristics over recommended operating free air temperature range (unless otherwise noted)
Typ
Symbol
Parameter
Conditions
Min
Max
Units
(Note 1)
e
e
e b
e
b
1.5
V
V
Input Clamp Voltage
V
Min, I
Min, I
18 mA
Max,
V
V
I
CC
I
High Level Output
Voltage
V
V
DM54
DM74
DM54
DM74
DM74
2.5
2.7
3.4
3.4
OH
CC
OH
e
Max
IL
e
e
Max,
V
OL
Low Level Output
Voltage
V
V
Min, I
0.25
0.35
0.25
0.4
CC
OL
e
Min
IH
0.5
0.4
V
e
e
I
4 mA, V
CC
Min
OL
@
Input Current Max
e
e
I
V
Max, V
7V
I
CC
I
0.1
20
mA
Input Voltage
e
e
e
e
e
I
I
I
High Level Input Current
Low Level Input Current
V
CC
V
CC
V
CC
Max, V
Max, V
Max
2.7V
0.4V
mA
IH
IL
I
b
0.36
mA
I
b
b
b
Short Circuit
DM54
DM74
20
20
100
100
OS
mA
Output Current
(Note 2)
b
e
e
I
I
Supply Current with
Outputs High
V
Max
Max
CCH
CCL
CC
CC
0.6
1.8
1.2
3.3
mA
mA
Supply Current with
Outputs Low
V
e
e
25 C (See Section 1 for Test Waveforms and Output Load)
Switching Characteristics at V
5V and T
§
CC
A
e
R
L
2 kX
e
e
50 pF
Symbol
Parameter
C
L
15 pF
C
L
Units
Min
Max
Min
Max
t
t
Propagation Delay Time
Low to High Level Output
PLH
PHL
3
10
4
15
ns
ns
Propagation Delay Time
High to Low Level Output
3
10
4
15
e
e
25 C.
Note 1: All typicals are at V
5V, T
§
Note 2: Not more than one output should be shorted at a time, and the duration should not exceed one second.
CC
A
2