74AC174(1997) 查看數據表（PDF） - STMicroelectronics
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74AC174 Datasheet PDF : 10 Pages
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74AC174
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, RL = 500 Ω, Input tr = tf =3 ns)
Symbol
P ar ame te r
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 3.3V ± 0.3V
(**) Voltage range is 5V ± 0.5V
Test Condition
V CC
(V)
3.3(*)
5.0(**)
3.3(*)
5.0(**)
3.3(*)
5.0(**)
3.3(*)
5.0(**)
3.3(*)
5.0(**)
3.3(*)
5.0(**)
3.3(*)
5.0(**)
3.3(*)
5.0(**)
Value
TA = 25 oC
-40 to 85 oC
Min. Typ. Max. Min. Max.
1.5 8.5 11.0
12.0
1.5 6.0 8.0
9.0
1.5 9.0 11.0
12.0
1.5 7.0 9.0
10.0
1.0 5.5
7.0
1.0 5.0
5.0
1.0 5.5
7.0
1.0 5.0
5.0
2.5 6.5
7.0
2.0 5.0
5.5
1.0 3.0
3.0
0.5 3.0
3.0
0 2.5
2.5
0 2.0
2.0
90 100
70
100 125
100
Unit
ns
ns
ns
ns
ns
ns
ns
MHz
CAPACITIVE CHARACTERISTICS
Symbol
P ar ame te r
Test Conditions
V CC
(V)
Value
TA = 25 oC
-40 to 85 oC
Min. Typ. Max. Min. Max.
Unit
CIN Input Capacitance
5.0
4
pF
CPD Power Dissipation
5.0
fIN = 10 MHz
TBD
pF
Capacitance (note 1)
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 operting current can be obtained by the following equation. ICC(opr) = CPD • VCC • fIN +ICC/n (per circuit)
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