I just want to be sure about this: i have a spec sheet for CMOS with CMOS and TTL loads. The question is whether CMOS could drive TTL, so the general formula is fan-out = min(IOHmax/IIH, IOLmax/IIL) where IOHmax is the max output current at high state; IOLmax ... in low state; IIH is input current at high state; IIL is .... at low state; so I think I need to figure out which parameters are of CMOS and which are of TTL. So here's what i think: output parameters have to be of CMOS and input parameters have to be of TTL. Is it correct? Thanks much.