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by andix 525 days ago
I think it's either 8, 32 or 64 bit. Maybe 16 bit.

The size of memory space is not necessarily aligned with the bit width of the CPU. There are a lot of 32 bit systems that can use much more than 4 GB of RAM. And there are no 64 bit systems I know of, that are even theoretically able to use 16 exabytes (16 million TB) of RAM.

AFAIK ARM32 is still the norm for embedded systems. And there is still a place for 8-bit microcontrollers.