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MM74HC161 Datasheet(PDF) 2 Page - Fairchild Semiconductor

Part No. MM74HC161
Description  Synchronous Binary Counter with Asynchronous Clear . Synchronous Binary Counter with Synchronous Clear
Download  8 Pages
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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MM74HC161 Datasheet(HTML) 2 Page - Fairchild Semiconductor

   
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Connection Diagram
Pin Assignments for DIP, SOIC, SOP and TSSOP
Truth Tables
MM74HC161
MM74HC163
H
= HIGH Level
L
= LOW Level
X
= Don’t Care
↑ = LOW-to-HIGH Transition
Logic Diagram
CLK
CLR
ENP
ENT
Load
Function
X
L
X
X
X
Clear
X
H
H
L
H
Count & RC disabled
X
H
L
H
H
Count disabled
X
H
L
L
H
Count & RC disabled
H
X
X
L
Load
H
H
H
H
Increment Counter
CLK
CLR
ENP
ENT
Load
Function
L
X
X
X
Clear
X
H
H
L
H
Count & RC disabled
X
H
L
H
H
Count disabled
X
H
L
L
H
Count & RC disabled
H
X
X
L
Load
H
H
H
H
Increment Counter


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