> > Yeah, and take a look at the kludge of a charge pump for Vpp.
> > Looks like a recipie for disaster to me.
>
> Looks familiar, except that Wisp628 uses 22uF and 1k instead of 10u/2k2.
> What's the problem with it (except that a Vdd that is too low to begin
> with will cause a problem with some older PICs)? For obviousd reasons I
> would like to know!
>

I could be mistaken (wouldn't be the first time, heck not even the first
time today :) but wouldn't it subject the input protection diodes to high
voltages? And the output drivers to high current spikes?

-Denny

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