>
> I've got a SIMILAR type of question.....  The databook says that when
> powering up a PIC, Vdd must start from 0V.  I've found this, unfortunately
> to be correct.  Is there any way that you guys can think of to implement
> an inexpensive circuit to bring the power to 0V QUICKLY after power is
> disconnected so that you can QUICKLY power back up instead of waiting for
> the PIC to drain your power supply caps?
>
Use a DS1231 to get a reliable Power-On-Reset. It's esecially useful
when you use the 16C71 whose POR doesn't work...
Anyway; this way is probably cheaper than convincing the power supply
to go down to 0V before power-up.

/Tomas

tomas@opq.se