Once again I find that I have had my head in the sand, missing out on the multi-voltage IO that Microchip introduced with its ‘DB’ range of AVR microcontrollers in 2020. The DB comes from the part number, for example: AVR128DB64, where the 128 here is the flash size (the choice is 32, 64 or …
This story continues at One I missed: multi-voltage IO in 8bit AVRs
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