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74AC109 Datasheet(PDF) 2 Page - Fairchild Semiconductor

Part No. 74AC109
Description  Dual JK Positive Edge-Triggered Flip-Flop
Download  12 Pages
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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74AC109 Datasheet(HTML) 2 Page - Fairchild Semiconductor

 
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©1988 Fairchild Semiconductor Corporation
www.fairchildsemi.com
74AC109, 74ACT109 Rev. 1.5
2
Logic Symbols
Truth Table
Each half.
H
= HIGH Voltage Level
L
= LOW Voltage Level
= LOW-to-HIGH Transition
X
= Immaterial
Q0(Q0) = Previous Q0(Q0) before LOW-to-HIGH Transition of Clock
Logic Diagram
One half shown.
Please note that this diagram is provided only for the understanding of logic operations and should not be used to
estimate propagation delays.
Inputs
Outputs
SD
CD
CP
J
K
Q
Q
LH
X
X
X
H
L
HL
X
X
X
L
H
LL
X
X
X
H
H
HH
L
L
L
H
HH
HL
Toggle
HH
L
H
Q0
Q0
HH
H
H
H
L
HH
L
X
X
Q0
Q0
IEEE/IEC


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