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Hitachi Power Semiconductor Device Electronic Components Datasheet

HD74HC4017 Datasheet

Decade Counter/Divider

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HD74HC4017
Decade Counter/Divider
Description
The HD74HC4017 is a 5-stage divide-by-10 Johnson counter with ten decoded outputs and a carry-out bit.
High-speed operation and spike-free outputs are obtained by use of the Johnson decade counter
configuration.
The ten decoded outputs are normally low and go high only at their respective decimal time periods. A
high signal on Reset R asynchronously clears the decade counter and sets the carry output and Y0 high.
With CE low, the count is advanced on a low-to-high transition at C input. Alternatively, if C is high, the
count is advanced on a high-to-low transition at CE. Each decoded output remains high for one full clock
cycle. The carry output is high while Q0, Q1, Q2, Q3 or Q4 is high, then is low while Q5, Q6, Q7, Q8 or Q9 is
high.
Features
High Speed Operation
High Output Current: Fanout of 10 LSTTL Loads
Wide Operating Voltage: VCC = 2 to 6 V
Low Input Current: 1 µA max
Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)


Hitachi Power Semiconductor Device Electronic Components Datasheet

HD74HC4017 Datasheet

Decade Counter/Divider

No Preview Available !

HD74HC4017
Function Table
C CE
LX
XH
XX
L
X
X
H
Notes: 1. X: Don’t care
2. If n < 5 Carry = “H”, Otherwise = “L”
R
L
L
H
L
L
L
L
Pin Arrangement
Decode Output = n
n
n
Q0
n+1
n
n
n+1
Q5 1
Q1 2
Q0 3
Q2 4
Q6 5
Q7 6
Q3 7
GND 8
Q1 Q5 Reset
Q0 Clock
Q2
Clock
enable
Q6 Cout
Q7 Q9
Q3 Q8 Q4
(Top view)
16 VCC
15 R
14 C
13 CE
12 Cout
11 Q9
10 Q4
9 Q8
2


Part Number HD74HC4017
Description Decade Counter/Divider
Maker Hitachi Semiconductor
Total Page 8 Pages
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