Posted By
crock
on 2014-03-22
09:04:00
 |  Re: Detection between 7501 and 8501 - is possible?
The only difference is the process used to fabricate the chip. The 7501 was HMOS, the 8501 HMOS-II. IIRC the mask was identical so they were electrically as well as functionally identical. There has been claims in the past that some revisions of MOS CPU's could be detected using the observed behavior of some undefined op-codes but I've not seen it done in practice.
|
