74HCT7540U 데이터 시트보기 (PDF) - Philips Electronics
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74HCT7540U Datasheet PDF : 7 Pages
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Philips Semiconductors
Octal Schmitt trigger buffer/line driver;
3-state; inverting
FUNCTION TABLE
INPUTS
OE1
OE2
An
L
L
L
L
L
H
X
H
X
H
X
X
Notes
1. H = HIGH voltage level
L = LOW voltage level
X = don’t care
Z = high impedance OFF-state
OUTPUTS
Yn
H
L
Z
Z
Product specification
74HC/HCT7540
Fig.4 Functional diagram.
December 1990
Fig.5 Logic diagram.
4
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