Nantonos:
TCSC47:
Is there any reason why the standard two Nand gate flip flop with a change over switch can not be used for switch debounce? This is the circuit I have almost always used for such applications.That type of circuit was discussed in the page I linked to earlier in the thread, which also mentioned the drawback that a double-throw switch is needed. But that aside, it works fine of course.
My favorite from days past was to wire the grounded common contact of a SPDT switch to the direct set and reset pins of a common 74LS74 flip-flop for perfect hardware debouncing. I would sometimes even add a simple RC to one of those two pins to ensure the flip-flop would power up to the state I wished it to be.
Lefty