HD74HC195 Ver la hoja de datos (PDF) - Hitachi -> Renesas Electronics
Número de pieza
componentes Descripción
Lista de partido
HD74HC195 Datasheet PDF : 9 Pages
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HD74HC195
Function Table
Inputs
Shift/
Serial
Parallel
Outputs
Clear Load Clock J
K
A
B
C
D
QA
QB
QC
QD
QD
L
XX
X
X
X
X
X
X
L
L
L
L
H
H
L
X
X
a
b
c
d
a
b
c
d
d
H
H
L
X
X
X
X
X
X
QA0
QB0
QC0
QD0
QD0
H
H
L
H
X
X
X
X
QA0
QA0
QBn
QCn
QCn
H
H
L
L
X
X
X
X
L
QAn
QBn
QCn
QCn
H
H
H
H
X
X
X
X
H
QAn
QBn
QCn
QCn
H
H
H
L
X
X
X
X
QAn
QAn
QBn
QCn
QCn
H : high level (steady state)
L : low level (steady state)
X : don’t care
:
transition from low to high level.
a, b, c, d : the level of steady-state input at inputs A, B, C or D respectively.
QA0, QB0, QC0, QD0 : the level of QA, QB, QC or QD respectively, before the indicated steady-state input
conditions were established.
QAn, QBn, QCn, QDn :
the level of QA, QB, QC or QD respectively before the most recent
the clock.
transition of
2
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