M74HC164 Просмотр технического описания (PDF) - STMicroelectronics
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M74HC164 Datasheet PDF : 13 Pages
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M74HC164
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No
1,2
3, 4, 5, 6, 10,
11, 12, 13
8
9
7
14
SYMBOL
A, B
QA to QH
CLOCK
CLEAR
GND
Vcc
NAME AND FUNCTION
Data Inputs
Outputs
Clock Input (LOW to
HIGH, Edge Triggered
Master Reset Input
Ground (0V)
Positive Supply Voltage
t(s) TRUTH TABLE
c INPUTS
OUTPUTS
rodu CLEAR
CLOCK
SERIAL IN
A
B
QA
QB
...........
P L
X
X
X
L
L
...........
lete H
X
X
NO CHANGE
o H
L
X
L
QAn
...........
bs H
X
L
L
QAn
...........
O H
H
H
H
QAn
) - X : Don’t Care
QAn - QGn : The level of QA - QG, respectively. before the most-recent transition of the clock
...........
Obsolete Product(s LOGIC DIAGRAM
QH
L
QGn
QGn
QGn
This logic diagram has not be used to estimate propagation delays
2/13
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