M54HC164D1 查看數據表（PDF） - STMicroelectronics
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M54HC164D1 Datasheet PDF : 11 Pages
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M54HC164
IEC LOGIC SYMBOLS
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN N°
1, 2
3, 4, 5, 6, 10,
11, 12, 13
8
9
7
14
SYMBOL NAME AND FUNCTION
A, B
Data Inputs
QA to QH Outputs
CLOCK
CLEAR
GND
VCC
Clock Input (LOW to
HIGH, Edge Triggered
Master Reset Input
Ground (0V)
Positive Supply Voltage
TRUTH TABLE
INPUTS
OUTPUTS
CLEAR
CLOCK
SERIAL IN
A
B
QA
QB
...........
L
X
X
X
L
L
...........
H
X
X
NO CHANGE
H
L
X
L
QAn
...........
H
X
L
L
QAn
...........
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
...........
QH
L
QGn
QGn
QGn
2/11
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