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74VHC174 Datasheet(PDF) 5 Page - STMicroelectronics

Part # 74VHC174
Description  HEX D-TYPE FLIP FLOP WITH CLEAR
PDF  14 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74VHC174 Datasheet(HTML) 5 Page - STMicroelectronics

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Table 7: AC Electrical Characteristics (Input tr = tf = 3ns)
(*) Voltage range is 3.3V
± 0.3V
(**) Voltage range is 5.0V
± 0.5V
Table 8: Capacitive Characteristics
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)
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
CL
(pF)
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
tPLH
tPHL
Propagation Delay
Time
CLOCK to Q
3.3(*)
15
5.8
11.0
1.0
13.0
1.0
13.0
ns
3.3(*)
50
7.5
14.5
1.0
16.5
1.0
16.5
5.0(**)
15
4.1
7.2
1.0
8.5
1.0
8.5
5.0(**)
50
5.5
9.2
1.0
10.5
1.0
10.5
tPHL
Propagation Delay
Time
CLEAR to Q
3.3(*)
15
7.4
11.4
1.0
13.5
1.0
13.5
ns
3.3(*)
50
9.9
14.9
1.0
17.0
1.0
17.0
5.0(**)
15
5.1
7.6
1.0
9.0
1.0
9.0
5.0(**)
50
6.6
9.6
1.0
11.0
1.0
11.0
tW
CLEAR Pulse
Width LOW
3.3(*)
5.0
5.0
5.0
ns
5.0(**)
5.0
5.0
5.0
tW
CLEAR Pulse
Width HIGH or
LOW
3.3(*)
5.0
5.0
5.0
ns
5.0(**)
5.0
5.0
5.0
ts
Setup Time D to
CLOCK, HIGH or
LOW
3.3(*)
5.0
6.0
6.0
ns
5.0(**)
4.5
4.5
4.5
th
Hold Time D to
CLOCK, HIGH or
LOW
3.3(*)
0.0
0.0
0.0
ns
5.0(**)
0.5
0.5
0.5
tREM
Recovery Time
CLEAR to CLOCK
3.3(*)
3.0
3.0
3.0
ns
5.0(**)
2.5
2.5
2.5
fMAX
Maximum Clock
Frequency
3.3(*)
15
95
150
80
80
MHz
3.3(*)
50
55
85
50
50
5.0(**)
15
130
175
110
110
5.0(**)
50
90
120
80
80
Symbol
Parameter
Test Condition
Value
Unit
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
CIN
Input Capacitance
610
10
10
pF
CPD
Power Dissipation
Capacitance
(note 1)
15
pF



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