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74VHC374 数据表(PDF) 5 Page - STMicroelectronics

部件名 74VHC374
功能描述  OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUTS NON INVERTING
PDF  14 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

74VHC374 数据表(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
Note 1: Parameter guaranteed by design. tsoLH = |tpLHm - tpLHn|, tsoHL = |tpHLm - tpHLn|
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/8 (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
CK to Q
3.3(*)
15
8.1
12.7
1.0
15.0
1.0
15.0
ns
3.3(*)
50
10.6
16.2
1.0
18.5
1.0
18.5
5.0(**)
15
5.4
8.1
1.0
9.5
1.0
9.5
5.0(**)
50
6.9
10.1
1.0
11.5
1.0
11.5
tPZL
tPZH
Output Enable
Time
3.3(*)
15
RL = 1KΩ
7.1
11.0
1.0
13.0
1.0
13.0
ns
3.3(*)
50
RL = 1KΩ
9.6
14.5
1.0
16.5
1.0
16.5
5.0(**)
15
RL = 1KΩ
5.1
7.6
1.0
9.0
1.0
9.0
5.0(**)
50
RL = 1KΩ
6.6
9.6
1.0
11.0
1.0
11.0
tPLZ
tPHZ
Output Disable
Time
3.3(*)
15
RL = 1KΩ
10.2
14.0
1.0
16.0
1.0
16.0
ns
3.3(*)
50
RL = 1KΩ
6.1
8.8
1.0
10.0
1.0
10.0
tw
Clock Pulse Width
HIGH or LOW
3.3(*)
5.0
5.5
5.5
ns
5.0(**)
5.0
5.0
5.0
ts
Setup Time D to CK
HIGH or LOW
3.3(*)
4.5
4.5
4.5
ns
5.0(**)
3.0
3.0
3.0
th
Hold Time D to CK
HIGH or LOW
3.3(*)
2.0
2.0
2.0
ns
5.0(**)
2.0
2.0
2.0
fMAX
Maximum Clock
Frequency
3.3(*)
60
250
60
60
MHz
5.0(**)
100
270
100
100
tOSLH
tOSHL
Output to Output
Skew time (note 1)
3.3(*)
50
1.5
1.5
1.5
ns
5.0(**)
50
1.0
1.0
1.0
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
710
10
10
pF
COUT
Output
Capacitance
9pF
CPD
Power Dissipation
Capacitance
(note 1)
32
pF



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