Jan-Erik Soderholm <jan-erik.soderholm <at> telia.com> writes:

> Fine.
> Either you follow the specs in the data sheet, or you don't.
> It's your design.

Come to think of it, you are right. But I still think that this chip is far too
sensitive and that the datasheet and the migration guide should indicate this
clearly. With the exception of analog input PICs I have met very few ICs where
the input voltage spec was tighter than 0.6V from the rails. It is immediately
obvious that any chip not withstanding those 0.6V must be clamped externally
with non-simple diode devices at least. So having very sensitive IO pins on an
embedded controller which is likely to work with external IO all the time sort
of defeats the purpose imho. And if so, there should be a clear warning in the
datasheet and in the migration guide.

thanks,
Peter


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