Hi All I too am real new to this scene.......I downloaded this "Understanding & Programming the PIC16C84 - A Beginners Tutorial" by Jim Brown. > Another excellent document I found some time ago is also very helpful. I've > uploaded it to my server: > > http://pc-tek.hypermart.net/begin.rtf > My problem is finding the Microchip Application Notes that Jim refers to. The only application notes I could find related to specific applications of 16F84/16C84 (eg control of servo motor etc) The nearest I could find were these links .........http://www.microchip.com/Download/Lit/Specs/30189d.pdf http://www.microchip.com/Download/Lit/PICmicro/16F8X/30430c.pdf but the figure quotes that Jim uses (eg [PIC figure 4-2]) dont match up at all. It may seem like overkill but I was hoping to follow this very good tutorial to the letter (ie look at every reference he makes) but I just cant seem to find the "PIC'84 data sheet" document he is referring to. If anyone has a link or the data sheet itself I would really appreciate seeing it. Thanks for any help *-Dave