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I have to design a programmable frequency/clock divider circuit using the 4029 IC. Theoretically, the circuit should start to count down backwards from a given number and when it reaches 0, the 4029 should load the data from the ABCD pins.

The issue is that the countdown stops at 0 and PE doesn't get back to the LOW state. It loads the number, but the SR latch never changes its state so the IC can start counting again. I tried everything and nothing fixes the issue. What can be done in this case? Thanks 🍻

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[-] SebiTCR@lemmy.world 2 points 5 days ago

Yep. I wanted to store the CO signal for one tick in order to load the data and the next tick we want to disable that signal so the circuit can count again.

this post was submitted on 31 May 2026
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