I'm using a 16F84 in LP crystal mode, something I've never done before, and I'm trying to choose capacitor values. In the 16F84 datasheet, the value of 68-100pF for both capacitors is listed. The test crystal is shown as an EPSON C-001R32.768K-A, which has a recommended load of 12.5 pF. There seems to be a disconnect here, if I use 100pF or even 68pF, aren't I going to load the crystal to the point my frequency will be pulled? Second question, does LP mode limit the crystal drive so a series resistor is not needed? Thanks, Bob -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body