74VHC138N View Datasheet(PDF) - Fairchild Semiconductor
Part Name
Description
View to exact match
74VHC138N Datasheet PDF : 7 Pages
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AC Electrical Characteristics
Symbol
Parameter
VCC
TA = 25°C
TA = −40°C to +85°C
Units
(V)
Min
Typ
Max
Min
Max
Conditions
tPLH
Propagation Delay
tPHL
An to On
tPLH
Propagation Delay
tPHL
E3 to On
tPLH
Propagation Delay
tPHL
E1 or E2 to On
CIN
Input Capacitance
CPD
Power Dissipation
Capacitance
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
3.3 ± 0.3
5.0 ± 0.5
8.2
11.4
1.0
13.5
ns CL = 15 pF
10.0
15.8
1.0
18.0
CL = 50 pF
5.7
8.1
1.0
9.5
ns CL = 15 pF
7.2
10.1
1.0
11.5
CL = 50 pF
8.1
12.8
1.0
15.0
ns CL = 15 pF
10.6
16.3
1.0
18.5
CL = 50 pF
5.6
8.1
1.0
9.5
ns CL = 15 pF
7.1
10.1
1.0
11.5
CL = 50 pF
8.2
11.4
1.0
13.5
ns CL = 15 pF
10.7
14.9
1.0
17.0
CL = 50 pF
5.8
8.1
1.0
9.5
ns CL = 15 pF
7.3
10.1
1.0
11.5
CL = 50 pF
4
10
10
pF VCC = Open
34
pF (Note 3)
Note 3: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average
operating current can be obtained by the equation: ICC (opr.) = CPD * VCC * fIN + ICC.
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