The [E0C6S46](https://download.epson-europe.com/pub/electronics-de/asmic/4bit/62family/technicalmanual/tm_6s46.pdf https://download.epson-europe.com/pub/electro

The [E0C6S46](https://download.epson-europe.com/pub/electronics-de/asmic/4bit/62family/technicalmanual/tm_6s46.pdf https://download.epson-europe.com/pub/electronics-de/asmic/4...) still powers the 1st and 2nd gen Tamagotchi! 4-bit (!) 32KHz MCU with 6,144 words of 12-bit (‼) ROM, 640 words of internal 4-bit RAM, and a 160-word 4-bit frame buffer for the integrated LCD driver (enough for double-buffering)! The thing is a beauty! I wrote a Typescript emulator for it, a year ago or so, though for whatever reason I haven’t pushed it to GH yet (but I will if anyone’s interested! It can run unmodified Tamagotchi firmware.