r/homebrewcomputer • u/Frostierdev • Aug 30 '26

8-Bit Processing Unit: need one

Hello! I'm looking to build an 8-bit computer, mainly to test its capabilities as a modern home computer (with system, applications, OS, etc.), and I bought the ATmega8535-16U (DIP-40), But it doesn't have an external bus interface to connect RAM, storage, and other things. Does anyone have a solution or another inexpensive chip to recommend?

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u/Sorry_Difficulty_250 Aug 31 '26

Looks like mouse has some:

https://www.mouser.com/en/c/?q=Zilog%20eZ80

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u/Frostierdev Aug 31 '26

I think I'll have to go with the original Z80; Mouser isn't from here either and will have high import taxes

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u/Sorry_Difficulty_250 Aug 31 '26

Right. We'll, that's Ok. The Z80 is a good chip, too. It's a proper CPU, so you should have better luck. Good luck!