74VHC74TTR(2004) Просмотр технического описания (PDF) - STMicroelectronics
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74VHC74TTR Datasheet PDF : 14 Pages
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74VHC74
Table 7: AC Electrical Characteristics (Input tr = tf = 3ns)
Test Condition
Symbol
Parameter
VCC CL
(V) (pF)
tPLH
tPHL
tPLH
tPHL
tW
tW
ts
th
tREM
fMAX
Propagation Delay 3.3(*) 15
Time CK to Q or Q 3.3(*) 50
5.0(**) 15
5.0(**) 50
Propagation Delay 3.3(*) 15
Time PR or CLR to
Q or Q
3.3(*)
50
5.0(**) 15
5.0(**) 50
CK Pulse Width
HIGH or LOW
3.3(*)
5.0(**)
PR or CLR Pulse
Width LOW
3.3(*)
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(**)
Removal Time
PR or CLR to CK
3.3(*)
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.
6.7 11.9 1.0 14.0 1.0 14.0
9.2 15.4 1.0 17.5 1.0 17.5
ns
4.6 7.3 1.0 8.5 1.0 8.5
6.1 9.3 1.0 10.5 1.0 10.5
7.6 12.3 1.0 14.5 1.0 14.5
10.1 15.8 1.0 18.0 1.0 18.0
ns
4.8 7.7 1.0 9.0 1.0 9.0
6.3 9.7 1.0 11.0 1.0 11.0
6.0
7.0
7.0
ns
5.0
5.0
5.0
6.0
7.0
7.0
ns
5.0
5.0
5.0
6.0
7.0
7.0
ns
5.0
5.0
5.0
0.5
0.5
0.5
ns
0.5
0.5
0.5
5.0
5.0
5.0
ns
3.0
3.0
3.0
80 125
70
70
50 75
45
45
MHz
130 170
110
110
90 115
75
75
Symbol
Parameter
CIN Input Capacitance
CPD Power Dissipation
Capacitance
(note 1)
Test Condition
VCC
(V)
5.0
5.0
fIN = 10MHz
Value
TA = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
7 10
10
10 pF
25
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/2 (per
flip-flop)
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