VBAT1PC132PC14-OSC32_IN3PC15-OSC32_OUT4PF0-OSC_IN5PF1-OSC_OUT6NRST7VSSA8VDDA9PA010PA111PA2(TX2)12PA3(RX2)13PA414PA515PA616PA717PB018PB119PB220PB1021PB1122VSS23VDD24PB1225PB1326PB1427PB1528PA829PA9(TX1)30PA10(RX1)31PA1132PA1233PA1334VSS35VDDIO236PA14(TX2)37PA15(RX2)38PB339PB440PB541PB6(TX1)42PB7(RX1)43PF11-BOOT044PB845PB946VSS47VDD48EP49