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M74HC165 View Datasheet(PDF) - STMicroelectronics

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Description
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M74HC165
ST-Microelectronics
STMicroelectronics ST-Microelectronics
M74HC165 Datasheet PDF : 21 Pages
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M74HC165
3
Logic states
Logic states
3.1
Note:
Truth table
Table 3.
Truth table
Inputs
Internal outputs
Outputs
Shift
/Load
L
H
H
H
H
H
H
Clock INH
X
L
L
X
H
Clock
X
L
L
H
X
SI
A..........H
QA
QB
QH
X
a..........h
a
b
h
H
X
H
QAn
QGn
L
X
L
QAn
QGn
H
X
H
QAn
QGn
L
X
L
QAn
QGn
X
X
No change
X
X
No change
a........h : the level of steady input voltage at inputs a through respectively QAn - QGn : the
level of QA - QG, respectively. Before the most recent transition of the clock.
3.2
Logic diagram
Figure 4. Logic diagram
Note:
This logic diagram has not to be used to estimate propagation delays
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