PC21PC12PC0/CIN3-3PB0/AN0/INT1/CO4PB1/AD1/Vref5PB2/AD26GND7PB3/AD38PB4/AD49PB5/AD510PB6/AD611PB7/AD712PA0/INT0/COM013PA5/RESET#14PA1/PWM/COM115PA2/PWM/COM216PA3/AD8/PWM/COM3/CIN1-17VDD18PA6/X219PA7/X120PA4/AD9/CIN2-21PC5/CIN+22PC423PC324