74HCT688PW datasheet(3/7 Pages) PHILIPS

3 / 7 page

December 1990

3

Philips Semiconductors

Product speciﬁcation

8-bit magnitude comparator

74HC/HCT688

PIN DESCRIPTION

PIN NO.

SYMBOL

NAME AND FUNCTION

1

E

enable input (active LOW)

2, 4, 6, 8, 11, 13, 15, 17

P0 to P7

word inputs

3, 5, 7, 9, 12, 14, 16, 18

Q0 to Q7

word inputs

10

GND

ground (0 V)

19

P = Q

equal to output

20

VCC

positive supply voltage

Fig.1 Pin configuration.

Fig.2 Logic symbol.

Fig.3 IEC logic symbol.

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