HCF4022B Datasheet, PDF (2/11 Pages) STMicroelectronics – OCTAL COUNTER WITH 8 DECODED OUTPUTS

HCF4022B
INPUT EQUIVALENT CIRCUIT
FUNCTIONAL DIAGRAM
LOGIC DIAGRAM
PIN DESCRIPTION
PIN No
SYMBOL NAME AND FUNCTION
2, 1, 3, 7, 11,
4, 5, 10
0 to 7 Decoded Output
6, 9
NC
Not Connected
14
CLOCK Clock Input
13
CLOCK
INHIBIT
Clock Inhibit Input
15
RESET Reset Input
12
CARRY OUT Carry Output
8
V_SS
Negative Supply Voltage
TRUTH TABLE
CLOCK
CLOCK
INHIBIT
X
X
L
X
X
H
L
L
H
H
X : Don’t Care
Qn : No Change
RESET
H
L
L
L
L
L
L
DECODED
OUTPUT
Q₀
Q_n
Q_n
Q_n+1
Q_n
Q_n
Q_n+1
This logic diagram has not be used to estimate propagation delays
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