74HC688 Datasheet, PDF (4/7 Pages) NXP Semiconductors – 8-bit magnitude comparator

Philips Semiconductors
8-bit magnitude comparator
Product specification
74HC/HCT688
Fig.4 Functional diagram.
FUNCTION TABLE
INPUTS
DATA P_n, Q_n
P=Q
X
P>Q
P<Q
ENABLE E
L
H
L
L
Notes
1. H = HIGH voltage level
L = LOW voltage level
X = don’t care
OUTPUT
P=Q
L
H
H
H
December 1990
4
Fig.5 Logic diagram.