> Now I'm on a 16F870, using a 20MHz CTS Reeves MXO45 1/2-can oscillator. > Again w/o caps, testing my busy waits shows it to be very accurate (not a > perfect test, but still). I'm wondering what the downside to this is. > Anyone care to shed some light on the adv/disadv of doing this? Mostly cost and power, and possibly board space. The oscillator duplicates some of the circuitry already in the PIC. They also tend to draw surprisingly large current. Since PICs come with crystal driving circuitry, I just use a bare crystal and caps about 95% of the time. ******************************************************************** Olin Lathrop, embedded systems consultant in Littleton Massachusetts (978) 742-9014, olin@embedinc.com, http://www.embedinc.com -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads