> -----Original Message-----
> From: Brendan Moran [SMTP:bmoran@MILLENNIUM.CA]
> Sent: Thursday, August 15, 2002 5:38 PM
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      Re: [PIC]: Reset circuits
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> > I don't suppose you know of any 3volt three pin reset generators
> > that have an open collector output that can withstand the 13volts
> > Vpp on a PIC?  Seems like no-one makes such a beast.
>
> I'd say don't worry about the open collector, and put a diode in
> series with the ouput.
>
And a pull down resistor.  This is what we have done in the past but our
board space is often so tight that even a couple of extra tiny surface mount
components can make things awkward.  Also the MCLR voltage thresholds
preclude the use of a cheap silicon diode at 3.3volts or below, you have to
use a (more expensive) Schottky diode.

Regards

Mike

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