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74VHC161 데이터 시트보기 (PDF) - Fairchild Semiconductor
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74VHC161
4-Bit Binary Counter with Asynchronous Clear
Fairchild Semiconductor
74VHC161 Datasheet PDF : 10 Pages
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Mode Select Table
Action on the Rising
PE CET CEP
MR
Clock Edge ( )
L
X X X Reset (Clear)
H
L X X Load (P
n
→
Q
n
)
H
H H H Count (Increment)
H
H L X No Change (Hold)
H
HX
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
L No Change (Hold)
Block Diagram
State Diagram
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
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