A colleage is considering the AVR for a product line. He's concerned about the availability of the parts firstly. Second issue is the A2D converter built in reference. The spec seems a bit odd. +- 0.1 V from nominal from a 1.1 V reference is around +-10% seems rather strange for that to be called a voltage reference too me. Can anyone shed light onto weather this is indeed how bad the reference is? Is it really that pointless to use the internal reference or not? __________________________________ Do you Yahoo!? Yahoo! Mail - Easier than ever with enhanced search. Learn more. http://info.mail.yahoo.com/mail_250 -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist