74ACT520 查看數據表（PDF） - Fairchild Semiconductor
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74ACT520 Datasheet PDF : 8 Pages
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Truth Table
Inputs
IA = B
A, B
L
A = B (Note 1)
L
A≠Β
H
A = B (Note 1)
H
A≠Β
H = HIGH Voltage Level
L = LOW Voltage Level
Note 1: *A0 = B0, A1 = B1, A2 = B2, etc.
Outputs
OA = B
L
H
H
H
Logic Diagram
Applications
Please note that this diagram is provided only for the understanding of logic
operations and should not be used to estimate propagation delays.
Ripple Expansion
Parallel Expansion
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