On Mon, Jun 21, 2021 at 12:13 PM Michał Pleban <lists_at_michau.name> wrote: > > smf wrote: > > > Right, you can easily compare it to other chips that have been > > previously decapped. But I don't think the 1541 gate array has been > > decapped and the 1542 gate array could look entirely different. > > Do we actually know what the 1542 was supposed to be? From the "Secret > Weapons" website it seems to me that it was just a 1541 in a charcoal > case, in which case it's not likely it would need a different gate array? > > > It could just be a mask rom. > > In DIP40 packaging? there're quite a few 16 bit ROMs (as in 16 bit data bus) in dip-40 packages. But I agree, not something that was particularly common in 1983. My feeling is that VIC-42 IC is a particularly well done fake, MOS never used something else than the usual numbers on ICs. Frank IZ8DWFReceived on 2021-06-21 13:01:02
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