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74VHCT374A Datasheet(PDF) 4 Page - Fairchild Semiconductor

Part No. 74VHCT374A
Description  Octal D-Type Flip-Flop with 3-STATE Outputs
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

74VHCT374A Datasheet(HTML) 4 Page - Fairchild Semiconductor

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4
AC Electrical Characteristics
Note 8: Parameter guaranteed by design. tOSLH = |tPLH max − tPLH min|; tOSHL = |tPHL max − tPHL min|
Note 9: 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/8 (per F/F). The total CPD when n pcs. of the octal D Flip-Flop operates
can be calculated by the equation: CPD(total) = 20 + 12m.
AC Operating Requirements
Symbol
Parameter
VCC
(V)
TA = 25°CTA = −40°C to +85°C
Units
Conditions
Min
Typ
Max
Min
Max
tPLH
Propagation Delay Time
5.0
± 0.5
4.1
9.4
1.0
10.5
ns
CL = 15 pF
tPHL
5.6
10.4
1.0
11.5
CL = 50 pF
tPZL
3-STATE Output Enable Time
5.0
± 0.5
6.5
10.2
1.0
11.5
ns
RL = 1 kΩ CL = 15 pF
tPZH
7.3
11.2
1.0
12.5
CL = 50 pF
tPLZ
3-STATE Output Disable Time
5.0
± 0.5
7.0
11.2
1.0
12.0
ns
RL = 1 kΩ CL = 50 pF
tPHZ
tOSLH
Output to Output Skew
5.0
± 0.5
1.0
1.0
(Note 8)
tOSHL
fMAX
Maximum Clock Frequency
5.0
± 0.5
90
140
80
MHz
CL = 15 pF
85
130
75
CL = 50 pF
CIN
Input
410
10
pF
VCC = Open
Capacitance
COUT
Output Capacitance
9
pF
VCC = 5.0V
CPD
Power Dissipation Capacitance
25
pF
(Note 9)
Symbol
Parameter
VCC
(V)
TA = 25°CTA = −40°C to +85°C
Units
Min
Typ
Max
Min
Max
tW(H)
Minimum Pulse
5.0
± 0.5
6.5
8.5
ns
tW(L)
Width (CP)
tS
Minimum Set-up Time
5.0
± 0.5
2.5
2.5
ns
tH
Minimum Hold Time
5.0
± 0.5
2.5
2.5


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