At 05:00 PM 9/13/2004, you wrote: >When I was designing I/O boards for spaceborne computers I once saw >what happens when most inputs are left floating on CMOS designs. This >was a design full of (~30) 54HCxx ICs. ><snip> >Thank you for listening. gak! 54xx IC's -- No wonder the space program cost so much! Ed K.