Hi all. Just so that others can short-cut to this reference.... I was trying to find a (relatively) comprehensive reference for the different package layouts used for IC's. Eventually found this: http://en.wikipedia.org/wiki/Category:Chip_carriers Although I knew that Wikipedia had some references to various packages, I did not realise that they had all been categorized together in one place too. Rolf -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist