> I did forget to put the part number in the msg didn't I? > Sorry. Here it is. Bt450KC30. Thanks all. And a mere thirty seconds later, I have a link to: http://www.freetradezone.com/design_center/images/pdf/D0213195.pdf Seriously, y'all should check out free trade zone. Lots of datasheets, even for hard to find stuff. I think you have to register, but at least it's free. (They also have some appnotes that may be helpful.) newell -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body