HCF4017B Datasheet, PDF (2/11 Pages) STMicroelectronics – DECADE COUNTER WITH 10 DECODED OUTPUTS

HCF4017B
INPUT EQUIVALENT CIRCUIT
FUNCTIONAL DIAGRAM
LOGIC DIAGRAM
PIN DESCRIPTION
PIN No
SYMBOL NAME AND FUNCTION
3, 2, 4, 7, 10,
1, 5, 6, 9, 11
0 to 9
Decoded Decimal Output
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
16
V_DD
Positive Supply Voltage
TRUTH TABLE
CLOCK
X
L
X
H
H
CLOCK
INHIBIT
X
X
H
L
L
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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