Dude, people can get the PGA 68030 rated at 50Mhz
to go at 75Mhz, eg, Czuba, look at the CT2
prototype! I reckon that would hit 80 or more
if cooled well enough.
A 68HC000 can go faster if you get the right one,
I'm still experiemnting with mine. I've
heard about people hit over 40MHZ with them no problems
and for certain I know a guy who got 36MHz. These
were rated for 16MHz!!
