"Dwornik, Sebastian" wrote: > > Has anyone begun to play with this 20 Mhz version of the popular '84 > series? > Other then it being five times faster then the 4 Mhz version, is there > any major difference or improvement in operation? After looking > at the spec. sheet, my assumption seems that an electronic design using > the 4 Mhz PIC can be easily swapped with its 20 Mhz version and the > electronics (apart from the crystal) can remain the same. Please correct > me if I'm wrong on this assumption. Obviously the code will change as > well to conform with any special timing sequences. > > Sebastian I wouldn't automatically assume that it will interface directly with your hardware, problem free. The DIE may have different characteristics, more susceptible to noise etc. -- Best regards Tony http://www.picnpoke.com Email sales@picnpoke.com