I'm just about to re-stock the the empire with PICs. In the 16F range I normally use the 16F628. Arrow have the 628A, which I've not used before, for NZ$2.90 (the 628 is currently NZ$4.90). I know there are programming differences between the two, but will there be problems with a PicStart Plus and MPLAB 6.20.0.0 ? Does the 628A have any operational quirks not in the 628 ? TIA ============================================== Research is what I'm doing when I don't know what I'm doing - Wernher von Braun -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.