Here is just one of many overclocking tests: http://www.sparkfun.com/commerce/present.php?p=3DOverclocking%20a%20PIC Lots more on Google search of pic overclocking. ----- Original Message ----- = From: "David Meiklejohn" To: "Microcontroller discussion list - Public." Sent: Wednesday, June 18, 2008 3:39 AM Subject: Re: [PIC] Max speed from 887 Wouter van Ooijen wrote: > Tom=E1s =D3 h=C9ilidhe wrote: >> >> I don't need precision. It can be 18 MHz, it can be 21 MHz. > > No it can't: 21 MHz is outside the specs! That's one reason an external > RC oscillator at 20 Mhz is not practical. This makes me wonder (please note - I am NOT advocating this, I don't want to do it - it's just curiosity), has anyone here tried "overclocking" any PICs? How did it go? What speeds did you achieve? Again - just to be really clear before I'm jumped on, I'd never suggest doing it in any application you want reliability from - and that includes hobbies. I'm just wondering how much "safety factor" is in the specs, in practice. David Meiklejohn www.gooligum.com.au -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist