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
5.5V
Operating Free Air Temperature Range
DM54 and 54
DM74
b
b
a
55 C to 125 C
§
0 C to 70 C
§
a
§
§
a
65 C to 150 C
Storage Temperature Range
§
§
Recommended Operating Conditions
DM5437
DM7437
Nom
5
Symbol
Parameter
Units
Min
4.5
2
Nom
Max
Min
4.75
2
Max
V
V
V
Supply Voltage
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
0.8
0.8
V
IL
b
b
I
I
1.2
48
125
1.2
mA
mA
OH
OL
48
b
T
A
55
0
70
C
§
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Typ
(Note 1)
Symbol
Parameter
Conditions
Min
Max
Units
e
e
e b
e
b
1.5
V
V
Input Clamp Voltage
V
Min, I
Min, I
12 mA
Max
V
V
I
CC
I
High Level Output
Voltage
V
V
OH
CC
OH
2.4
3.3
0.2
e
Max
IL
e
e
e
V
OL
Low Level Output
Voltage
V
CC
V
IH
Min, I
Min
Max
5.5V
OL
0.4
V
@
Input Current Max
Input Voltage
e
e
I
I
V
CC
Max, V
I
1
mA
e
e
e
e
e
I
I
I
High Level Input Current
Low Level Input Current
V
V
V
Max, V
Max, V
Max
2.4V
0.4V
40
mA
IH
CC
CC
CC
I
b
1.6
mA
IL
I
b
b
b
Short Circuit
Output Current
DM54
DM74
20
18
70
70
OS
mA
(Note 2)
b
e
e
I
I
Supply Current with
Outputs High
V
Max
Max
CCH
CC
CC
9
15.5
54
mA
mA
Supply Current with
Outputs Low
V
CCL
34
e
e
Switching Characteristics at V
5V and T
25 C (See Section 1 for Test Waveforms and Output Load)
§
CC
A
Symbol
Parameter
Conditions
Min
Max
Units
e
e
t
Propagation Delay Time
Low to High Level Output
C
R
45 pF
133X
PLH
PHL
L
22
ns
L
t
Propagation Delay Time
High to Low Level Output
15
ns
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.
CC
A
2
NSC [ National Semiconductor ]
