> F871 has 2K of program memory, 128RAM and 64EEPROM
> F874 has 8K of program memory, 368RAM and 256EEPROM
> F877 seems to be similar to F874
>
> Now, not withstanding the size of program memory, whats the diff between these
> 3 chip?

The upper bytes of RAM map differently between banks when the RAM size changes.
Certainly happens between 873/4 and 876/7, not sure about 871 to 874/7, but
check.

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