This is called a WLCSP package and the size is dictated mostly by the number of pins. There have been some for ages with 16 pins (4x4 grid), but this one is half the size at 2x4 pins, so cool. You need pretty advanced PCB fab to use them. But yes, if you go on youtube or do a web search, you can find examples of people hand soldering this type of package.
This part has 16k of flash and 1k of ram, so comparable to the lower end TI MSP430 processors, and maybe midrange by 8-bit MCU standards. It might be comparable to the ATmega parts on the earlier Arduino boards. The later (ATMega328) Arduinos have 32K flash and 2.5K ram, which is still in the same general class.
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This is called a WLCSP package and the size is dictated mostly by the number of pins. There have been some for ages with 16 pins (4x4 grid), but this one is half the size at 2x4 pins, so cool. You need pretty advanced PCB fab to use them. But yes, if you go on youtube or do a web search, you can find examples of people hand soldering this type of package.
This part has 16k of flash and 1k of ram, so comparable to the lower end TI MSP430 processors, and maybe midrange by 8-bit MCU standards. It might be comparable to the ATmega parts on the earlier Arduino boards. The later (ATMega328) Arduinos have 32K flash and 2.5K ram, which is still in the same general class.