A number of mcs51 mask ROM parts of interest have come up recently. Looks like this could be implemented directly on the TL866 without a PCB, but haven't confirmed yet.
Also TODO: need to understand which mcs51 parts this applies to (ex: does it apply to 8051AH?)
Reference here: http://www.itisravenna.it/sheet/anm033.pdf
A number of mcs51 mask ROM parts of interest have come up recently. Looks like this could be implemented directly on the TL866 without a PCB, but haven't confirmed yet.
Also TODO: need to understand which mcs51 parts this applies to (ex: does it apply to 8051AH?)