74VHCT74A View Datasheet(PDF) - ON Semiconductor

Part Name

Description

Manufacturer

74VHCT74A

Dual D-Type Flip-Flop with Preset and Clear

ON Semiconductor 

Connection Diagram

Logic Symbol

IEEE/IEC

Pin Description

Pin Names

D1, D2

CK1, CK2

CLR1, CLR2

PR1, PR2

Q1, Q1, Q2, Q2

Description

Data Inputs

Clock Pulse Inputs

Direct Clear Inputs

Direct Preset Inputs

Outputs

Truth Table

Inputs

Outputs

CLR PR D CK Q Q Function

L

HX X

L H Clear

H L X X H L Preset

L

LX

X

HH

H HL

LH

H HH

HL

H HX

Qn Qn No Change

©2008 Fairchild Semiconductor Corporation

74VHCT74A Rev. 1.4.0

2

www.fairchildsemi.com

Share Link: