Cmos programmable divide-by-n counter

Posted on Feb 6, 2013

A single connection change permits division by any integer between 2 and 10. The RCA CD4017A Johnson decade counter is shown connected as a divide by 7 counter. The resistor is used to hold the reset line low. When the appropriate number is reached, that output and the reset line are driven high, resetting the counter. To divide by other integers, pin 15 should be connected to the desired output

Cmos programmable divide-by-n counter
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For example, pin 1 for a divide byJ>, or pin 7 for a divide by 3. The output of the divider appears on the 0 line.

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