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
Input Voltage
7V
5 5V
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
Operating Free Air Temperature Range
b
55 C to
a
125 C
DM54 and 54
DM74
0 C to
a
70 C
Storage Temperature Range
b
65 C to
a
150 C
Recommended Operating Conditions
Symbol
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
Parameter
Min
Supply Voltage
High Level Input Voltage
Low Level Input Voltage
High Level Output Current
Low Level Output Current
Free Air Operating Temperature
b
55
DM5402
Nom
5
Max
55
Min
4 75
2
08
b
0 4
DM7402
Nom
5
Max
5 25
Units
V
V
08
b
0 4
45
2
V
mA
mA
C
16
125
0
16
70
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
V
I
V
OH
V
OL
I
I
I
IH
I
IL
I
OS
Parameter
Input Clamp Voltage
High Level Output
Voltage
Low Level Output
Voltage
Input Current
Input Voltage
Max
Conditions
V
CC
e
Min I
I
e b
12 mA
V
CC
e
Min I
OH
e
Max
V
IL
e
Max
V
CC
e
Min I
OL
e
Max
V
IH
e
Min
V
CC
e
Max V
I
e
5 5V
V
CC
e
Max V
I
e
2 4V
V
CC
e
Max V
I
e
0 4V
V
CC
e
Max
(Note 2)
V
CC
e
Max
V
CC
e
Max
DM54
DM74
b
20
b
18
Min
Typ
(Note 1)
Max
b
1 5
Units
V
V
24
34
02
04
1
40
b
1 6
b
55
b
55
V
mA
mA
mA
mA
High Level Input Current
Low Level Input Current
Short Circuit
Output Current
Supply Current with
Outputs High
Supply Current with
Outputs Low
I
CCH
I
CCL
2
6
4
11
mA
mA
Switching Characteristics
at V
CC
e
5V and T
A
e
25 C (See Section 1 for Test Waveforms and Output Load)
Symbol
t
PLH
t
PHL
Parameter
Propagation Delay Time
Low to High Level Output
Propagation Delay Time
High to Low Level Output
Conditions
C
L
e
15 pF
R
L
e
400X
Min
Max
22
15
Units
ns
ns
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
2
NSC [ NATIONAL SEMICONDUCTOR ]
