[sdiy] 4027 flip-flop weirdness.. debouncing time

[Tom Wiltshire]

On 11 Mar 2009, at 12:17, Jean-Pierre Desrochers wrote:

>
>> 5us - is that enough time to debounce a mechanical switch?
>
> Karl, after several years of trial & tests I can tell
> you the best debounce time I found and still use
> is around 20msec.
> 5usec is way too short..
> My 2 cents.
> JP

I agree with JP. Switches vary and some are "bouncier" than others,  
but you definitely want debounce times in multiple mS not uS.

T.