74ACT273T 查看數據表（PDF） - STMicroelectronics
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74ACT273T Datasheet PDF : 11 Pages
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74ACT273
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 Ω, Input tr = tf =3 ns)
Symb ol
Parameter
tPLH Propagation Delay Time
tPHL CK to Q
tPLH Propagation Delay Time
tPHL CLR to Q
twL CLR pulse Width, LOW
tw CK pulse Width
ts Setup Time Q to CK
HIGH or LOW
th Hold Time Q to CK
HIGH or LOW
tREM Recovery Time CLR to
CK
fMAX Maximum Clock
Frequency
(*) Voltage range is 5V ± 0.5V
T est Con ditio n
VCC
(V)
5.0(*)
5.0(*)
5.0(*)
5.0(*)
5.0(*)
5.0(*)
5.0(*)
5.0(*)
Valu e
TA = 25 oC
-40 to 85 oC
Min. T yp. Max. Min. Max.
1.5 6.5 8.5 1.5 9.0
Unit
ns
1.5 7.0 9.0 1.5 9.5
ns
1.5 4.0
1.0 4.0
1.0 3.5
4.0 ns
4.0 ns
3.5
ns
-0.5 1.5
1.5
ns
0.5 3.0
3.0
ns
125 190
110
MHz
CAPACITIVE CHARACTERISTICS
Symb ol
Parameter
Test Conditions
VCC
(V)
Valu e
TA = 25 oC
-40 to 85 oC
Min. T yp. Max. Min. Max.
Unit
CIN Input Capacitance
5.0
4
pF
CPD Power Dissipation
5.0
fIN = 10 MHz
32
pF
Capacitance (note 1)
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 operting current can be obtained by the following equation. ICC(opr) = CPD • VCC • fIN + ICC/n(per circuit)
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