MC74AC161(2002) 查看數據表（PDF） - ON Semiconductor
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MC74AC161 Datasheet PDF : 16 Pages
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MC74AC161, MC74ACT161, MC74AC163, MC74ACT163
AC OPERATING REQUIREMENTS
Symbol
Parameter
ts
Setup Time, HIGH or LOW
Pn to CP
th
Hold Time, HIGH or LOW
Pn to CP
ts
Setup Time, HIGH or LOW
PE to CP
th
Hold Time, HIGH or LOW
PE to CP
ts
Setup Time, HIGH or LOW
CEP or CET to CP
th
Hold Time, HIGH or LOW
CEP or CET to CP
tw
Clock Pulse Width (Load)
HIGH or LOW
tw
Clock Pulse Width (Count)
HIGH or LOW
tw
MR Pulse Width, LOW
trec
Recovery Time
MR to CP
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
74ACT161
74ACT161
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Typ
Guaranteed Minimum
5.0 7.0
9.5
11.5
ns
3–9
5.0 –3.0
0
0
ns
3–9
5.0 6.0
8.5
9.5
ns
3–9
5.0 –3.5
– 0.5
– 0.5
ns
3–9
5.0 4.0
5.5
6.5
ns
3–9
5.0 –2.0
0
0
ns
3–9
5.0 2.0
3.0
3.5
ns
3–6
5.0 2.0
3.0
3.5
ns
3–6
5.0 3.0
3.0
7.5
ns
3–6
5.0
0
0
0.5
ns
3–9
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