74AC109_07 FAIRCHILD [Fairchild Semiconductor], 74AC109_07 Datasheet - Page 2

• Manufacturer Part Number: 74AC109_07
• Description: Dual JK Positive Edge-Triggered Flip-Flop
• Manufacturer: FAIRCHILD [Fairchild Semiconductor]

©1988 Fairchild Semiconductor Corporation
74AC109, 74ACT109 Rev. 1.5
Logic Symbols
Truth Table
Each half.
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.
H = HIGH Voltage Level
X = Immaterial
Q
L = LOW Voltage Level
0
(Q
= LOW-to-HIGH Transition
S
0
H
H
H
H
H
H
L
L
) = Previous Q
D
C
H
H
H
H
H
H
L
L
D
0
(Q
0
Inputs
) before LOW-to-HIGH Transition of Clock
CP
X
X
X
L
IEEE/IEC
2
X
X
X
H
H
X
J
L
L
K
X
X
X
H
H
X
L
L
Q
Q
Q
H
H
H
L
L
0
0
Outputs
Toggle
Q
Q
Q
H
H
H
L
L
0
0
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