This particular line of PICs seems to be a little funky. The 16C71 is _more_ expensive, has fewer RAM locations, no brown-out reset feature, and has less program memory than the others in the same line. Any particular reasons to actually _use_ the 16C71 as opposed to the others? If none, why does Microchip continue to produce it? --Andrew _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.