Which version of the microcontroller need to test their software on cartridge without mappers, please give a link to Ebay or aliexpress to buy.
As I understand it, you're looking for a microcontroller to use as a CIC substitute on an NROM-compatible board, and you want to buy it on eBay or AliExpress. Do I understand you right?
I need the scheme as simple as possible, I do not know exactly which model to use controllers. What should be the minimum?
Pardon my rude question, but where are you from? Just curious.
Mr. Google-Search tells me that AliExpress is the most common eBay equivalent in China and Russia.
(Edit, and Brazil, for some reason)
Are you talking about the memory chips for the NES program and graphics, which are ROMs? Or the CIC/lockout chip, which is a microcontroller? If it's the ROMs, for a non-mapper board you can use 27C256. If it's the CIC, it depends entirely on the code you're putting on it.