I have not worked with them, but I did look at the Maxim MAX306CPI it is a 16 channel/8 channel dual Multiplexer Maxim's numer is 1 800 998 8800 for samples requests and literature Eddie Turner, kc4awz -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu