The app note is on the web site under PIC-16/17 applications towards the bottom of the page. It is not cross referenced in the index At 02:43 PM 4/30/99 +0100, you wrote: >Where can I find this app note -it is not on the microchip web site. The app note is on the web site under PIC-16/17 applications towards the bottom of the page. It is not cross referenced in the index Daniel F. Welch Director Research and Development American Scientific Associates Email: amersci@flash.net