http://124.222.62.86/yd-data/CH32V103-data/YD-CH32V103C8T6/CH32V103C8T6-48pinsize-PCB.zip
http://124.222.62.86/yd-data/CH32V103-data/YD-CH32V103C8T6/CH32V103C8T6-48pinsize.pdf
http://124.222.62.86/yd-data/CH32V103-data/YD-CH32V103C8T6/CH32V103C8T6-SCH.pdf