[sdiy] 4027 flip-flop weirdness

[Karl Ekdahl]

Hi list, i have a strange problem; i can't get a 4027 flip-flop to behave like a flip-flop. I've got J & K high, SD & CD low, and i feed CP with a debounced positive-going signal. All i get is a high Q while CP is high, and then a low Q as soon as CP goes low. Am i missing something here? I've tried several ICs with no luck BUT i do have a version i did a week or two ago that works like a charm. I also tried decoupling my power-rails but to no avail...

Karl


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