Hi Wouter, As I said my english write and understanding is not fantastic. The way Olin spoke seemed to me offensive, but I can mistake, and I hope so. For the "allways" word, I already said, I could made I mistake not precissing it was only applied to electric protection, not about size, not about price, not ... But I maintain that I prefer to protec unused pins thru limiting resistors against leaving them unconnected or tied to Vcc/Gnd. I do not remember the PO has specified he had size or price restrictions. A few resistors and a very small extra space not allways is going to limit your design, and can be (once in a time or never) usefull. That's my opinion and tried to express that way to Roger. Sorry to everybody wich I make confussion, but tried to speak allways correct without discualifying nobody, so I expect the same to me. Well, no more discussion from my part, I'm here to learn and try to help when I can (not so often), and not to loose my time or make all other loose them. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist