[sdiy] Issue with CD4024 Ripple Counter

David G Dixon dixon at mail.ubc.ca
Fri Sep 17 05:57:53 CEST 2021

Hey SDIY Team,
I've got a device that uses a 4024 ripple counter.  The datasheet says that
it advances on the negative transition of the clock.  All mine (CD4024BE)
are advancing on the positive transition of the clock.  However, I tried an
MC14024BCP and it worked properly.
Am I smoking crack?  Why are my CD4024s behaving opposite to the datasheet,
but the MC14024 is behaving as per the datasheet?  What is it that I don't
know about these devices?
Dave Dixon
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