74HC4002 데이터 시트보기 (PDF) - Philips Electronics
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74HC4002 Datasheet PDF : 6 Pages
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Philips Semiconductors
Dual 4-input NOR gate
Fig.4 Functional diagram.
Product specification
74HC/HCT4002
FUNCTION TABLE
INPUTS
OUTPUT
nA
nB
nC
nD
nY
L
L
L
L
H
H
X
X
X
L
X
H
X
X
L
X
X
H
X
L
X
X
X
H
L
Notes
1. H = HIGH voltage level
L = LOW voltage level
X = don’t care
Fig.5 Logic diagram 74HC4002 (one gate).
Fig.6 Logic diagram 74HCT4002 (one gate).
December 1990
4
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