Hi,

We design and manufacture PIC based units.  We have sold just over 1k of units over the past 12 months.   We buy all our chips in at
4Mhz, because they are easier to get hold of.  Now, as everyone knows, 20Mhz and 4Mhz chips are made from the same die.  We run
chips labelled 4Mhz at 16Mhz, and we have never had any problems at all.

Conclusion: running 4Mhz chips at 16Mhz is fine.  This is based on real world experience, not hearsay or witch hunting.

Regards,
Shane.

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of David VanHorn
> Sent: Thursday, 22 March 2001 11:05 a.m.
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [PIC]: 20 MHz clock in a 4 MHz pic
>
>
> At 03:36 PM 3/21/01 -0500, Bob Ammerman wrote:
> >This should be a FAQ:
> >
> >I am intentionally "shouting":
> >
> >DON'T OVERCLOCK PICS
>
> See FAQ:  http://www.dvanhorn.org/Micros/All/Overclocking.php
> --
> Dave's Engineering Page: http://www.dvanhorn.org
> Where's dave? http://www.findu.com/cgi-bin/find.cgi?kc6ete-9
>
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