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HD74HC4017 Datasheet

  • HD74HC4017

  • Decade Counter/Divider

  • 8頁

  • HITACHI

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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 Y
0
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 Q
0
, Q
1
, Q
2
, Q
3
or Q
4
is high, then is low while Q
5
, Q
6
, Q
7
, Q
8
or Q
9
is
high.
Features
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
High Speed Operation
High Output Current: Fanout of 10 LSTTL Loads
Wide Operating Voltage: V
CC
= 2 to 6 V
Low Input Current: 1 碌A(chǔ) max
Low Quiescent Supply Current: I
CC
(static) = 4 碌A(chǔ) max (Ta = 25擄C)

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