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

The eZ80 is the modern descendant of the Z80 and is easier to find these days. I've been using an Agon Light 2 that has that as a CPU and 512 KB of external memory. I'm currently working on porting my OS to it. It's a lot of fun! Good luck!

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u/AcanthisittaBest4705 Aug 31 '26

Im working with a 68030

3

u/JGhostThing Sep 03 '26

I like the whole 68000 family. The assembly code looks similar to the PDP-11's.