
M54HC174
IEC LOGIC SYMBOLS
INPUT AND OUTPUT EQUIVALENT CIRCUIT
TRUTH TABLE
INPUTS
CLEAR
D
CK
L
X
X
H
L
H
H
H
X
X : Don’t Care
PIN DESCRIPTION
PIN N°
1
2, 5, 7, 10,
12, 15
3, 4, 6, 11,
13, 14
9
8
16
SYMBOL
CLEAR
NAME AND FUNCTION
Asynchronous Master
Reset (Active Low)
Q0 to Q5 Flip-Flop Outputs
D0 to D5
CLOCK
GND
VCC
Data Inputs
Clock Input (LOW to
HIGH, edge triggered)
Ground (0V)
Positive Supply Voltage
OUTPUTS
Q
L
L
H
Qn
FUNCTION
CLEAR
NO CHANGE
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