I'm sure that I am missing something hidden in plain sight but still=20 have not broken the da Vinci code for PIC names yet. Can someone here tell me exactly what the significance is of pics with=20 either K or J in the part number? How do these vary from pics without=20 the K or J? Thanks! --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .