Thanks to all those who responded. Since we need to convert 3 lines from 5V down to 3.3V, we went with the Fairchild Tiny Logic triple buffer. I note that TI also has a similar part. Again, thanks to all! Harold ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/web/. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.