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74ACT161B bảng dữ liệu(PDF) 5 Page - STMicroelectronics

tên linh kiện 74ACT161B
Giải thích chi tiết về linh kiện  SYNCHRONOUS PRESETTABLE 4-BIT COUNTER
PDF  11 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

74ACT161B bảng dữ liệu(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
5.5
9.5
10.5
ns
tPLH
tPHL
Propagation Delay Time
CK to CARRY OUT
5.0
(*)
1.5
7.0
11.0
12.0
ns
tPLH
tPHL
Propagation Delay Time
TE to CARRY OUT
5.0
(*)
1.5
5.5
8.5
10.0
ns
tPHL
Propagation Delay Time
CLEAR to CARRY OUT
5.0
(*)
1.5
6.0
10.0
11.0
ns
twL
CLR pulse Width, LOW
5.0
(*)
2.5
3.0
7.5
ns
tw
CK pulse Width (LOAD)
HIGH or LOW
5.0
(*)
2.0
3.0
3.5
ns
tw
CK pulse Width (COUNT)
HIGH or LOW
5.0
(*)
2.0
3.0
3.5
ns
ts
Setup Time HIGH or LOW
(INPUT to CK)
5.0
(*)
1.5
9.5
11.5
ns
th
Hold Time HIGH or LOW
(INPUT to CK)
5.0
(*)
-0.5
0
1.0
ns
ts
Setup Time HIGH or LOW
(LOAD to CK)
5.0
(*)
2.0
8.5
9.5
ns
th
Hold Time HIGH or LOW
(LOAD to CK)
5.0
(*)
-2.0
-0.5
0
ns
ts
Setup Time HIGH or LOW
(PE or TE to CK)
5.0
(*)
1.5
5.5
6.5
ns
th
Hold Time HIGH or LOW
(PE or TE to CK)
5.0
(*)
-2.0
0
0.5
ns
tREM
Recovery Time CLR to Q
5.0
(*)
-0.5
0.5
1.0
ns
fMAX
Maximum Clock Frequency
5.0
(*)
115
125
100
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
4.5
pF
CPD
Power Dissipation
Capacitance (note 1)
5.0
fIN = 10 MHz
45
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)
74ACT161
5/11



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