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74VHC374 Datasheet(PDF) 4 Page - STMicroelectronics

Part No. 74VHC374
Description  OCTAL D-TYPE FLIP FLOP WITH 3 STATE OUTPUT NON INVERTING
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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74VHC374 Datasheet(HTML) 4 Page - STMicroelectronics

 
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CAPACITIVE CHARACTERISTICS
Symb ol
Parameter
T est Cond ition s
Val ue
Un it
TA =25
oC
-40 to 85
oC
Min.
Typ .
Max.
Min .
Max.
CIN
Input Capacitance
4
10
10
pF
COUT
Output Capacitance
6
pF
CPD
Power Dissipation
Capacitance (note 1)
32
pF
1) CPD isdefined as the value of the IC’sinternal equivalent capacitance which is calculated fromthe operating current consumption without load. (Referto
Test Circuit).Average operating current can be obtained by the following equation. ICC(opr) = CPD
• VCC • fIN +ICC/8 (per Flip-Flop)
AC ELECTRICAL CHARACTERISTICS (Input tr =tf =3 ns)
Symb ol
Parameter
Test Co nditi on
Val ue
Un it
VCC
(V)
CL
(pF )
TA =25
oC
-40 to 85
oC
Min.
Typ .
Max.
Min .
Max.
tPLH
tPHL
Propagation Delay
Time
CK to Q
3.3
(*)
15
8.1
12.7
1.0
15.0
ns
3.3
(*)
50
10.6
16.2
1.0
18.5
5.0
(**)
15
5.4
8.1
1.0
9.5
5.0
(**)
50
6.9
10.1
1.0
11.5
tPZL
tPZH
Output EnableTime
3.3
(*)
15
RL =1K
7.1
11.0
1.0
13.0
ns
3.3
(*)
50
RL =1K
9.6
14.5
1.0
16.5
5.0
(**)
15
RL =1K
5.1
7.6
1.0
9.0
5.0
(**)
50
RL =1K
6.6
9.6
1.0
11.0
tPLZ
tPHZ
Output Disable Time
3.3
(*)
50
RL =1K
10.2
14.0
1.0
16.0
ns
5.0
(**)
50
RL =1K
6.1
8.8
1.0
10.0
tw
Clock Pulse Width
HIGH or LOW
3.3
(*)
5.0
5.5
ns
5.0
(**)
5.0
5.0
ts
Setup Time D to CK
HIGH or LOW
3.3
(*)
4.5
4.5
ns
5.0
(**)
3.0
3.0
th
Hold Time D to CK
HIGH or LOW
3.3
(*)
2.0
2.0
ns
5.0
(**)
2.0
2.0
fMAX
Maximum Clock
Frequency
3.3
(*)
60
250
60
MHz
5.0
(**)
100
270
100
tOSLH
tOSHL
Output to Output Skew
Time (note 1)
3.3
(*)
50
1.5
1.5
ns
5.0
(**)
50
1.0
1.0
(*) Voltage range is 3.3V
± 0.3V
(**) Voltage range is 5V
± 0.5V
Note 1: Parameter guaranteed by design. tsoLH =|tpLHm-tpLHn|, tsoHL =|tpHLm -tpHLn|
74VHC374
4/10


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