> In short, despite other chips "apparently" working correctly, you 
> cannot rely on this, and must use an external schottky diode to 
> protect the input and stop the internal diode from conducting. Your 
> talk of using a more expensive component to protect a cheap 
> microprocessor is not an uncommon occurrence.

> That's a nice explanation. This topic should probably be part of a
FAQ.

No, what should be part of that FAQ is what "absolute maxima" means.
BTW: does anyone have a good webpage explaining that concept? IIRC the
definition is in a closed-source standard document :(

Wouter van Ooijen
(signature lost due to XP crash)

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