Main components

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Part NumberDescription
ATmega4809-A20MHz, 48kB Flash, 6kB SRAM, 256B EEPROM, TQFP-48
CH340EUSB serial converter, UART, MSOP-10
TS5A23159DGSDual SPDT 1ohm Bidirectional Analog Switch with Off protection, VSSOP-10

mx09 48 schematic

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mx09 48 board layout