Week Ligong development board original chip datasheet, inside the chip is very wide, including the development of all on-board chip

datasheet
.........\74HC00.pdf
.........\74HC02.pdf
.........\74HC04.pdf
.........\74HC138.pdf
.........\74hc164(2).pdf
.........\74HC573_2.pdf
.........\74HC74D.pdf
.........\ADC0809.pdf
.........\dac0832a.pdf
.........\hd44780.pdf
.........\hm62256b.pdf
.........\LM7805.pdf
.........\MAX232.pdf
.........\MAX809-810-1_cn.pdf
.........\TL431.pdf

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