DigiKey offers two 28-pin DIP versions of the dsPIC30F3013 as near as I can tell. The first one is dsPIC30F3013-20I/SP and the second one is the same except that it ends with -30I/sP. There is a slight (very small) price differential between the two, so obviously there must be a little difference. What is it? Inquiring nit-picky minds want to know. :-) John -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist