>I don't know why it would'nt run under any pic with 13 extra lines >for the memory interface and at least 2k of internal memory. Dallas has an SPI interface to up to 512K x 8 memory chips. So we just whacked off ten lines, meaning it could be run in a 12C672. Andy \-----------------/ \ /---\ / \ | | / Andy Kunz \ /---\ / Montana Design /---------+ +---------\ http://www.montanadesign.com | / |----|___|----| \ | \/___| * |___\/ Go fast, turn right, and keep the wet side down!