Quoting David C Brown : > I am resurrecting a design which uses PIC16F87. Since that chip is > obsolete what is the best drop in replacement. (Yes I have googled but n= ot > got very satisfactory answers) Why do you say it is obsolete? Seems to be quite available. Or was it actually a 16C87? In which case, the 16F87 should be a good =20 candidate. ;-) Best regards, Spehro Pefhany --=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 .