>
> > Have lost pins at 9 volts, and the chip stops, but works again at normal
> > voltages(without the pins that burned out).
>
> That's interesting.
>
> Some time ago I was interested in protecting PICs more than just setting
> the fuse bit.  Burning an IO pin that plays an important role during

Actually, I should have said that after running the PIC at 9 volts, any
pins lost still seemed to work fine as inputs :-)

Cheers,
Bob