What chips can I use to program new ROMs for a Colo(u)r Classic or Colo(u)r Classic II?

[jajan547]

Hello everyone, I am trying to make some new ROMs for colo(u)r classics and I figured I'd ask what chips work. I was thinking maybe an 27C400 but I'm not sure. I know to program these chips you have to have the little adapter board. However, I am skeptical as to what may or may not work and as such any ideas or comments are greatly appreciated!

 

[max1zzz]

27C400 should be correct for the CC

ISTR you need to byteswap the image before programming it, but it's been a while since I have done it so I might be wrong there..... If you have at leas tone working ROM chip you can just dump it as a 27C400 to find out

 

[jajan547]

Thank you I’m gonna give it a shot.