74VHC374 View Datasheet(PDF) - STMicroelectronics
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74VHC374 Datasheet PDF : 14 Pages
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74VHC374
Table 7: AC Electrical Characteristics (Input tr = tf = 3ns)
Test Condition
Value
Symbol
Parameter
VCC CL
(V) (pF)
tPLH
tPHL
tPZL
tPZH
tPLZ
tPHZ
tw
ts
th
fMAX
tOSLH
tOSHL
Propagation Delay 3.3(*) 15
Time
CK to Q
3.3(*) 50
5.0(**) 15
5.0(**) 50
Output Enable
Time
3.3(*) 15
3.3(*) 50
5.0(**) 15
5.0(**) 50
Output Disable
Time
3.3(*) 15
3.3(*) 50
Clock Pulse Width 3.3(*)
HIGH or LOW
5.0(**)
Setup Time D to CK 3.3(*)
HIGH or LOW
5.0(**)
Hold Time D to CK 3.3(*)
HIGH or LOW
5.0(**)
Maximum Clock
Frequency
3.3(*)
5.0(**)
Output to Output 3.3(*) 50
Skew time (note 1) 5.0(**) 50
RL = 1KΩ
RL = 1KΩ
RL = 1KΩ
RL = 1KΩ
RL = 1KΩ
RL = 1KΩ
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
8.1 12.7 1.0 15.0 1.0 15.0
10.6 16.2 1.0 18.5 1.0 18.5
ns
5.4 8.1 1.0 9.5 1.0 9.5
6.9 10.1 1.0 11.5 1.0 11.5
7.1 11.0 1.0 13.0 1.0 13.0
9.6 14.5 1.0 16.5 1.0 16.5
ns
5.1 7.6 1.0 9.0 1.0 9.0
6.6 9.6 1.0 11.0 1.0 11.0
10.2 14.0 1.0 16.0 1.0 16.0
ns
6.1 8.8 1.0 10.0 1.0 10.0
5.0
5.5
5.5
ns
5.0
5.0
5.0
4.5
4.5
4.5
ns
3.0
3.0
3.0
2.0
2.0
2.0
ns
2.0
2.0
2.0
60 250
60
60
MHz
100 270
100
100
1.5
1.5
1.5
ns
1.0
1.0
1.0
(*) Voltage range is 3.3V ± 0.3V
(**) Voltage range is 5.0V ± 0.5V
Note 1: Parameter guaranteed by design. tsoLH = |tpLHm - tpLHn|, tsoHL = |tpHLm - tpHLn|
Table 8: Capacitive Characteristics
Test Condition
Value
Symbol
Parameter
TA = 25°C
-40 to 85°C -55 to 125°C Unit
CIN
COUT
CPD
Input Capacitance
Output
Capacitance
Power Dissipation
Capacitance
(note 1)
Min. Typ. Max. Min. Max. Min. Max.
7 10
10
10 pF
9
pF
32
pF
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC/8 (per
Flip-Flop)
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