> The PIC17C756a has 16k words (28K bytes) of memory, > and lots of I/O, but is OTP only. No, like most PICs that aren't flash, it's available in UV erasable versions for development. I've done at least two projects with these that I can remember and have about 12 of the JW parts left. ******************************************************************** Olin Lathrop, embedded systems consultant in Littleton Massachusetts (978) 742-9014, olin@embedinc.com, http://www.embedinc.com -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.