M54HCT165F1R データシートの表示（PDF） - STMicroelectronics
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M54HCT165F1R Datasheet PDF : 13 Pages
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M54/M74HCT165
INPUT AND OUTPUT EQUIVALENT CIRCUIT
TRUTH TABLE
INPUTS
INTERNAL OUTPUTS
SHIFT/
LOAD
CLOCK
INHIBIT
CLOCK SERIAL IN A .........H
QA
QB
L
X
X
X
a............h
a
b
H
L
H
X
H
QAn
H
L
L
X
L
QAn
H
L
H
X
H
QAn
H
L
L
X
L
QAn
H
X
H
X
X
NO CHANGE
H
H
X
X
X
NO CHANGE
a.......h: The level of steady input voltage at inputs A through H respectively
QAn - QGn : The level of QA -QG, respectively, before the most-recent transition of the clock.
OUTPUS
QH
h
QGn
QGn
QGn
QGn
OUTPUS
QH
h
QGn
QGn
QGn
QGn
LOGIC DIAGRAM
2/13
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