On Mar 6, 2007, at 1:38 AM, Alan B. Pearce wrote:

> So the data sheet is correct, and you are trying to
> operate the chip outside the limits.

I dunno.  If the chip behavior has changed and the datasheet
HASN'T changed, that seems like a microchip-side problem to me.
The inability to adequately clamp inputs with ordinary silicon
diodes seems like a pretty serious issue.  (Are you sure you
saw that with chips that hadn't been subject to the internal
diodes being used as clamps?  It's possible that THOSE chips
were damaged somehow...)

BillW
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