Jeffrey Siegel wrote: > I'm confused about the speed specs on the PIC chips. > .... > Crystal Frequency Designator for PICmicro MCUs > 04 = DC to 200kHz, LP Oscillator Support > 10 = DC to 10 MHz, HS Oscillator Support > > Does this mean that a PIC16LF876-04 won't work at 4MHz? (Is it > possible to get 4MHz LP support on an LF package?) Jeffrey: The -04 parts are guaranteed to work at speeds up to 4 MHz WHEN CONFIGURED FOR AN "XT" OSCILLATOR; the 200 kHz limit is for PICs configured for "LP" oscillators. -Andy === Andrew Warren - fastfwd@ix.netcom.com === Fast Forward Engineering - Vista, California === http://www.geocities.com/SiliconValley/2499