74VHC273M 查看數據表（PDF） - STMicroelectronics
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74VHC273M Datasheet PDF : 10 Pages
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74VHC273
AC ELECTRICAL CHARACTERISTICS (Input tr = tf =3 ns)
Symb ol
Parameter
Test Condition
V CC
CL
( V)
(pF)
tPLH Propagation Delay
tPHL Time
CK to Q
tPHL Propagation Delay
Time
CLR to Q
tw CLR pulse Width
LOW
3.3(*)
15
3.3(*)
50
5.0(**)
15
5.0(**)
50
3.3(*)
15
3.3(*)
50
5.0(**)
15
5.0(**)
50
3.3(*)
5.0(**)
tw CK pulse Width
HIGH or LOW
3.3(*)
5.0(**)
ts Setup Time D to CK
HIGH or LOW
3.3(*)
5.0(**)
th Hold Time D to CK
HIGH or LOW
3.3(*)
5.0(**)
tREM Removal Time
CLR to CK
3.3(*)
5.0(**)
fMAX Maximum Clock
Frequency
3.3(*)
15
3.3(*)
50
5.0(**)
15
5.0(**)
50
tOSLH Output to Output Skew 3.3(*)
50
tOSHL Time (note 1)
5.0(**)
50
(*) 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|
Value
TA = 25 oC
Min. Typ. Max.
8.7 13.6
11.2 17.1
5.8 9.0
7.3 11.0
8.9 13.6
11.4 17.1
5.2 8.5
6.7 10.5
5.0
5.0
5.5
5.0
5.5
4.5
1.0
1.0
2.5
2.0
75 120
50
75
120 165
80 110
1.5
1.0
-40 to 85 oC
Min . Max.
1.0 16.0
1.0 19.5
1.0 10.5
1.0 12.5
1.0 16.0
1.0 19.5
1.0 10.0
1.0 12.0
6.0
5.0
6.5
5.0
6.5
4.5
1.0
1.0
2.5
2.0
65
45
100
70
1.5
1.0
Unit
ns
ns
ns
ns
ns
ns
ns
MHz
ns
CAPACITIVE CHARACTERISTICS
Symb ol
Parameter
Test Conditions
Value
Un it
TA = 25 oC
-40 to 85 oC
Min. Typ . Max. Min . Max.
CIN Input Capacitance
4
10
10
pF
CPD Power Dissipation
Capacitance (note 1)
31
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)
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