The PIC16F8X Datasheet, on page 40, shows the use of an external parallel resonant crystal oscillator circuit that provides for carrying the clock signal "To Other Devices". --Bob On Sat, 28 Nov 1998, you wrote: >Hello everyone, > >Can I use 1 (4Mhz) crystal for 2 16F84 micros? > >Thanks in advance > >Jon -- ============================================================ Bob Drzyzgula It's not a problem bob@drzyzgula.org until something bad happens ============================================================