I don't know about documentation but I have seen this before but I cannot
remember whether it was with a 16F88 or dsPIC24. I noticed it only when I
applied pressure directly to the package of the chip, though. I would
suspect that anything which applies pressure to the die will change the
value of resistors and capacitors on the die.



On Thu, Nov 2, 2017 at 5:01 PM, Van Horn, David <
david.vanhorn@backcountryaccess.com> wrote:

>
> Is there any documentation on sensitivity to PCB flex when using the
> internal RC?
> I have seen this on SAM7 chips and I think it's happening on a 24F chip.
>
> --
> David VanHorn
> Lead Hardware Engineer
>
> Backcountry Access, Inc.
> 2820 Wilderness Pl, Unit H
> Boulder, CO  80301 USA
> phone: 303-417-1345 x110
> email: david.vanhorn@backcountryaccess.com<mailto:david.vanhorn@
> backcountryaccess.com>
>
> --
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