74VHC174TTR View Datasheet(PDF) - STMicroelectronics
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74VHC174TTR Datasheet PDF : 14 Pages
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74VHC174
Table 7: AC Electrical Characteristics (Input tr = tf = 3ns)
Test Condition
Symbol
Parameter
VCC CL
(V) (pF)
tPLH
tPHL
tPHL
tW
tW
ts
th
tREM
fMAX
Propagation Delay 3.3(*) 15
Time
CLOCK to Q
3.3(*) 50
5.0(**) 15
5.0(**) 50
Propagation Delay 3.3(*) 15
Time
CLEAR to Q
3.3(*) 50
5.0(**) 15
5.0(**) 50
CLEAR Pulse
Width LOW
3.3(*)
5.0(**)
CLEAR Pulse
Width HIGH or
LOW
3.3(*)
5.0(**)
Setup Time D to
CLOCK, HIGH or
LOW
3.3(*)
5.0(**)
Hold Time D to
CLOCK, HIGH or
LOW
3.3(*)
5.0(**)
Recovery Time
3.3(*)
CLEAR to CLOCK 5.0(**)
Maximum Clock
Frequency
3.3(*) 15
3.3(*) 50
5.0(**) 15
5.0(**) 50
(*) Voltage range is 3.3V ± 0.3V
(**) Voltage range is 5.0V ± 0.5V
Table 8: Capacitive Characteristics
Value
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
5.8 11.0 1.0 13.0 1.0 13.0
7.5 14.5 1.0 16.5 1.0 16.5
ns
4.1 7.2 1.0 8.5 1.0 8.5
5.5 9.2 1.0 10.5 1.0 10.5
7.4 11.4 1.0 13.5 1.0 13.5
9.9 14.9 1.0 17.0 1.0 17.0
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
5.0
5.0
5.0
ns
5.0
5.0
5.0
5.0
5.0
5.0
ns
5.0
5.0
5.0
5.0
6.0
6.0
ns
4.5
4.5
4.5
0.0
0.0
0.0
ns
0.5
0.5
0.5
3.0
3.0
3.0
ns
2.5
2.5
2.5
95 150
80
80
55 85
50
50
MHz
130 175
110
110
90 120
80
80
Test Condition
Value
Symbol
Parameter
CIN Input Capacitance
CPD Power Dissipation
Capacitance
(note 1)
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
6 10
10
10 pF
15
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/6 (per
Flip-Flop)
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