http://www.digikey.com/Techzone/category-table.page?site=3Dus&lang=3Den&zon= e=3Dmicrocontroller&docType=3Dapp_notes&technology=3D&supplier=3D150&countr= y=3Dglobal&name=3DApp_Notes_Microchip_Technology search for AN1101 at digi key found it. But search at microchip.com did not... and it is called 1101a now. Data warehouse indexing fail? It's okay it happens to many. I SO wish the document pdf name would reflect the content. It is not that hard to call it an1101-doc012345.pdf . I can vouch for it, since I am force= d to save them renamed like that to be able to find them again in my computer= (s). -- Peter --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .