74HC688N datasheet(4/7 Pages) PHILIPS

4 / 7 page

December 1990

4

Philips Semiconductors

Product speciﬁcation

8-bit magnitude comparator

74HC/HCT688

FUNCTION TABLE

Notes

1. H = HIGH voltage level

L = LOW voltage level

X = don’t care

INPUTS

OUTPUT

DATA Pn, Qn

ENABLE E

P = Q

P=Q

X

P

> Q

P

< Q

L

H

L

H

Fig.4 Functional diagram.

Fig.5 Logic diagram.

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