> -----Original Message-----
> From: gtyler [mailto:gtyler@DRUMMOND.ORG.ZA]
> Sent: 09 December 2003 21:36
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [PIC:] Bootloader on a 18Fxxx?
>
>
> >Also note that *this* PIC has a MAX speed of 25Mhz, others i the
> same "family" has a max speed of 40Mhz
>
> Also does 40 MHz with hspll mode.
>

It might do 40MHz, but it's rated as a 25MHz part along with the rest of
this particular sub-family including the 6620,6720 and 8620.  In fact even
25MHz is not reliably achievable on existing silicon, the errata states that
4MHz is the maximum clock frequency to avoid a bug that causes random
corruption during the instruction fetch.

Regards

Mike




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