hmm, he has to take 25 pieces at once. But i´m not sure if it will fit at all. the crystal needs to deliver good old TTL-signal.... :nuts: otherwise - cmos is the same like TTL - but not in detail... i´m not sure here at all.. CMOS delivers less loadfactor compared with TTL. Additionally the output signal of newer CMOS-oscilltors is 3.3V only This is more than the min 2.5V needed but if you have any choice, take TTL...
(thanks to cb1jcy!)