74AC520 Datasheet, PDF (2/8 Pages) Fairchild Semiconductor – 8-Bit Identity Comparator

Truth Table
Inputs
I_{A = 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
O_{A = 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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