74VHCT74AN データシートの表示（PDF） - Fairchild Semiconductor
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74VHCT74AN Datasheet PDF : 6 Pages
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AC Electrical Characteristics
Symbol
Parameter
VCC
TA = 25°C
TA = −40°C to +85°C
(V)
(Note 6)
Min
Typ
Max
Min
Max
Units
Conditions
fMAX
tPLH
tPHL
Maximum Clock
Frequency
Propagation Delay Time
(CK-Q, Q)
5.0
100
160
5.0
80
140
80
MHz CL = 15 pF
65
CL = 50 pF
5.0
5.8
7.8
1.0
9.0
ns CL = 15 pF
5.0
6.3
8.8
1.0
10.0
CL = 50 pF
tPLH
Propagation Delay time
5.0
tPHL
(CLR, PR -Q, Q)
5.0
7.6
10.4
1.0
12.0
ns CL = 15 pF
8.1
11.4
1.0
13.0
CL = 50 pF
CIN
Input Capacitance
4
10
10
pF VCC = Open
CPD
Power Dissipation Capacitance
24
pF (Note 7)
Note 6: VCC is 5.0 ± 0.5V
Note 7: CPD is defined as the value of 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/2 (per flip-flop).
AC Operating Requirements
Symbol
Parameter
tW(L)
tW(H)
tW(L)
tS
tH
tREM
Minimum Pulse Width (CK)
Minimum Pulse Width
(CLR, PR)
Minimum Setup Time
Minimum Hold Time
Minimum Removal Time
(CLR, PR)
VCC
(V)
5.0 ± 0.5
5.0 ± 0.5
5.0 ± 0.5
5.0 ± 0.5
5.0 ± 0.5
TA = 25°C
TA = −40°C to +85°C
Typ
Guaranteed Minimum
5.0
5.0
Units
ns
5.0
5.0
ns
5.0
5.0
ns
0
0
ns
3.5
3.5
ns
3
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