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74ACT273 数据表(PDF) 5 Page - STMicroelectronics

部件名 74ACT273
功能描述  OCTAL D-TYPE FLIP FLOP WITH CLEAR
PDF  11 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

74ACT273 数据表(HTML) 5 Page - STMicroelectronics

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



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