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Part Name
Description
HCF4042B View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
HCF4042B
QUAD CLOCKED D LATCH
STMicroelectronics
HCF4042B Datasheet PDF : 9 Pages
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9
HCF4042B
IINPUT EQUIVALENT CIRCUIT
FUNCTIONAL DIAGRAM
PIN DESCRIPTION
PIN No
4, 7, 13, 14
2, 10, 11, 1
3, 9, 12, 15
5
6
8
16
SYMBOL NAME AND FUNCTION
D1 to D4
Q1 to Q4
Q1 to Q4
CLOCK
POLARITY
V
SS
V
DD
Data Inputs
Q outputs
Q outputs
Clock Input
Polarity inputs
Negative Supply Voltage
Positive Supply Voltage
TRUTH TABLE
CLOCK
L
H
POLARITY
0
0
1
1
Q
D
LATCH
D
LATCH
2/9
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