Matt Redmond wrote : > Thanks for the input. This whole thing is just killing me.... A few links that might save you :-) :-) http://focus.ti.com/docs/prod/folders/print/cd40109b.html http://focus.ti.com/lit/ds/symlink/cd40109b.pdf http://focus.ti.com/docs/prod/folders/print/sn74lvc4245a.html http://focus.ti.com/lit/ds/symlink/sn74lvc4245a.pdf Both are available on the TI sample program. Regards, Jan-Erik. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.