GND1GND2VCC3NC4IO45IO146NC7EN8NC9NC10GND11IO212IO1113GND14NC15IO1216NC17IO1718IO319IO2220IO2121IO2022IO8/NC23IO024NC25IO126IO527NC28NC29RXD30TXD31NC32NC33NC34NC35GND36GND37GND38GND39GND40GND41GND42GND43GND44GND45GND46GND47GND48GND49GND50GND51GND52GND53GND54GND55GND56GND57GND58GND59GND60GND61