7442 View Datasheet(PDF) - Fairchild Semiconductor
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7442 Datasheet PDF : 6 Pages
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Absolute Maximum Ratings (Note 1)
Supply Voltage
Input Voltage
Operating Free Air Temperature Range
7V
5.5V
DM54 and 54
DM74
Storage Temperature Range
−55˚C to +125˚C
0˚C to +70˚C
−65˚C to +150˚C
Recommended Operating Conditions
Symbol
Parameter
DM5442A
DM7442A
Units
Min
Nom
Max
Min
Nom
Max
VCC
Supply Voltage
4.5
5
5.5
4.75
5
5.25
V
VIH
High Level Input Voltage
2
2
V
VIL
Low Level Input Voltage
0.8
0.8
V
IOH
High Level Output Current
−0.8
−0.8
mA
IOL
Low Level Output Current
16
16
mA
TA
Free Air Operating Temperature
−55
125
0
70
˚C
Note 1: The “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. 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.
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
VI
Input Clamp Voltage
VCC = Min, II = −12 mA
VOH
High Level Output
VCC = Min, IOH = Max
2.4
Voltage
VIL = Max, VIH = Min
VOL
Low Level Output
VCC = Min, IOL = Max
Voltage
VIH = Min, VIL = Max
II
Input Current @ Max
VCC = Max, VI = 5.5V
Input Voltage
IIH
High Level Input Current
VCC = Max, VI = 2.4V
IIL
Low Level Input Current
VCC = Max, VI = 0.4V
IOS
Short Circuit
VCC = Max
DM54
−20
Output Current
(Note 3)
DM74
−18
ICC
Supply Current
VCC = Max
DM54
(Note 4)
DM74
Note 2: All typicals are at VCC = 5V, TA = 25˚C.
Note 3: Not more than one output should be shorted at a time.
Note 4: ICC is measured with all outputs open and all inputs grounded.
Typ
(Note 2)
3.4
0.2
28
28
Max
−1.5
0.4
1
40
−1.6
−55
−55
41
56
Units
V
V
V
mA
µA
mA
mA
mA
3
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