Yes I checked all the paths lots of times. Funny thing is simulation
yields to same result as well... Very annoying...

On Mon, Oct 24, 2011 at 11:00 PM, Vicent Colomar Prats
<vicentecolomar@gmail.com> wrote:
> Have you checked your PCB connections? Do you use a pull-up or direct
> connect to Vcc? Good solder joints? When you left an open unconnected pin=
 to
> float, it can activate and deactivate randomly. Also, sometimes is good
> practice to have a kind of debounce system( can be done with a simple del=
ay
> after output change)
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