I want to use a JK flip flop in order to create a toggle output. It is clear that both J and K should be set to 1, as well as the Preset and Clear inputs.
In some schematics, a Monostable 555 followed by a NOT gate, appears to connect with the Clear.
I think that the Mono creates a pulse and after that it stops, so connected with a NOT gate, the output of the NOT gate should create a power "gap" and after that it should continue powering the Clear input.
It looks like a delay in inserted, in order to power up first the Preset input and second the Clear input.
If that is the case, it's OK, even though I can't understand the reason for that. Yet, I have created a simple toggle circuit without a time delay, thus both Preset and Clear are power simultaneously, and it seems to work fine.
Actually, I have created two circuit versions, with one and two flip flops, meaning one and two outputs, and both work fine.
Do I miss something there? The same question goes with the T flip flop as well.