74VHC393(2007) 데이터 시트보기 (PDF) - Fairchild Semiconductor

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74VHC393
(Rev.:2007)

Dual 4-Bit Binary Counter

Fairchild Semiconductor 

Connection Diagram

Logic Symbol/s

IEEE/IEC

Pin Descriptions

Pin Names

CLR1, CLR2

CP1, CP2

QA, QB, QC, QD

Description

Clear Inputs

Clock Pulse Inputs

Outputs

System Diagram

Truth Table

Inputs

Outputs

CP

CLR QA QB QC QD

X

H

L

L

L

L

L

Count Up

L

No Change

X: Don’t Care

©1998 Fairchild Semiconductor Corporation

74VHC393 Rev. 1.4

2

www.fairchildsemi.com

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