>If output drop is okay, I'd use a HC595 + ULN2803 .. cheaper >and multiple sourced... and more forgiving of layout. especially as he is taking of driving relays. I don't think I would like to drive relays directly from the outputs of any of the 595 family. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist