| 1 | VBAT | Power | Versorgungsspannungseingang (VBAT — 3.3V VDD (Max 4.0V)) |
| 2 | PC13 | I/O | Multiplex-I/O- & Peripherie-Pin PC13 (RTC/CLK) |
| 3 | 3V3 | Power | 3.3V Main Power Supply Rail (3.0V ~ 3.6V) |
| 4 | NC | NC | No Connect (Leave Floating) |
| 5 | PF0OSC IN -_ (PF0) | I/O | Multiplex-I/O- & Peripherie-Pin PF0OSC IN -_ (PF0) (RTC/CLK) |
| 6 | PF1OSC OUT -_ (PF1) | I/O | Multiplex-I/O- & Peripherie-Pin PF1OSC OUT -_ (PF1) (RTC/CLK) |
| 7 | NRST | I | Systemfreigabe & Hardware-Reset (NRST) |
| 8 | PC0 | I/O | Multiplex-I/O- & Peripherie-Pin PC0 (ADC) |
| 9 | PC1 | I/O | Multiplex-I/O- & Peripherie-Pin PC1 (ADC) |
| 10 | PC2 | I/O | Multiplex-I/O- & Peripherie-Pin PC2 (ADC) |
| 11 | PC3 | I/O | Multiplex-I/O- & Peripherie-Pin PC3 (ADC) |
| 12 | VSSA | GND | Masseanschluss (VSSA) |
| 13 | VDDA | Power | Versorgungsspannungseingang (VDDA — 3.3V VDD (Max 4.0V)) |
| 14 | PA0 | I/O | Multiplex-I/O- & Peripherie-Pin PA0 (UART, ADC, PWM, RTC/CLK) |
| 15 | PA1 | I/O | Multiplex-I/O- & Peripherie-Pin PA1 (UART, ADC) |
| 16 | PA2 | I/O | Multiplex-I/O- & Peripherie-Pin PA2 (UART, ADC) |
| 17 | PA3 | I/O | Multiplex-I/O- & Peripherie-Pin PA3 (UART, ADC) |
| 18 | PF4 | I/O | Multiplex-I/O- & Peripherie-Pin PF4 (General) |
| 19 | PF5 | I/O | Multiplex-I/O- & Peripherie-Pin PF5 (General) |
| 20 | PA4 | I/O | Multiplex-I/O- & Peripherie-Pin PA4 (UART, SPI, ADC, DAC) |
| 21 | PA5 | I/O | Multiplex-I/O- & Peripherie-Pin PA5 (SPI, ADC, PWM) |
| 22 | PA6 | I/O | Multiplex-I/O- & Peripherie-Pin PA6 (SPI, ADC, PWM) |
| 23 | PA7 | I/O | Multiplex-I/O- & Peripherie-Pin PA7 (SPI, ADC, PWM) |
| 24 | PC4 | I/O | Multiplex-I/O- & Peripherie-Pin PC4 (ADC) |
| 25 | PC5 | I/O | Multiplex-I/O- & Peripherie-Pin PC5 (ADC) |
| 26 | PB0 | I/O | Multiplex-I/O- & Peripherie-Pin PB0 (ADC, PWM) |
| 27 | PB1 | I/O | Multiplex-I/O- & Peripherie-Pin PB1 (ADC, PWM) |
| 28 | PB2 | I/O | Multiplex-I/O- & Peripherie-Pin PB2 (General) |
| 29 | PB10 | I/O | Multiplex-I/O- & Peripherie-Pin PB10 (I2C, PWM) |
| 30 | PB11 | I/O | Multiplex-I/O- & Peripherie-Pin PB11 (I2C) |
| 31 | VSS | GND | Masseanschluss (VSS) |
| 32 | VDD | Power | Versorgungsspannungseingang (VDD — 3.3V VDD (Max 4.0V)) |
| 33 | PB12 | I/O | Multiplex-I/O- & Peripherie-Pin PB12 (SPI) |
| 34 | PB13 | I/O | Multiplex-I/O- & Peripherie-Pin PB13 (SPI) |
| 35 | PB14 | I/O | Multiplex-I/O- & Peripherie-Pin PB14 (SPI) |
| 36 | PB15 | I/O | Multiplex-I/O- & Peripherie-Pin PB15 (SPI, RTC/CLK) |
| 37 | PC6 | I/O | Multiplex-I/O- & Peripherie-Pin PC6 (PWM) |
| 38 | PC7 | I/O | Multiplex-I/O- & Peripherie-Pin PC7 (PWM) |
| 39 | PC8 | I/O | Multiplex-I/O- & Peripherie-Pin PC8 (PWM) |
| 40 | PC9 | I/O | Multiplex-I/O- & Peripherie-Pin PC9 (PWM) |
| 41 | PA8 | I/O | Multiplex-I/O- & Peripherie-Pin PA8 (UART, RTC/CLK) |
| 42 | PA9 | I/O | Multiplex-I/O- & Peripherie-Pin PA9 (UART) |
| 43 | PA10 | I/O | Multiplex-I/O- & Peripherie-Pin PA10 (UART) |
| 44 | PA11 | I/O | Multiplex-I/O- & Peripherie-Pin PA11 (UART) |
| 45 | PA12 | I/O | Multiplex-I/O- & Peripherie-Pin PA12 (UART) |
| 46 | PA13 (SWDAT) | I/O | Multiplex-I/O- & Peripherie-Pin PA13 (SWDAT) (General) |
| 47 | PF6 | I/O | Multiplex-I/O- & Peripherie-Pin PF6 (I2C) |
| 48 | PF7 | I/O | Multiplex-I/O- & Peripherie-Pin PF7 (I2C) |
| 49 | PA14 (SWCLK) | I/O | Multiplex-I/O- & Peripherie-Pin PA14 (SWCLK) (UART, SWD/JTAG) |
| 50 | PA15 | I/O | Multiplex-I/O- & Peripherie-Pin PA15 (UART, SPI, PWM) |
| 51 | PC10 | I/O | Multiplex-I/O- & Peripherie-Pin PC10 (General) |
| 52 | PC11 | I/O | Multiplex-I/O- & Peripherie-Pin PC11 (General) |
| 53 | PC12 | I/O | Multiplex-I/O- & Peripherie-Pin PC12 (General) |
| 54 | PD2 | I/O | Multiplex-I/O- & Peripherie-Pin PD2 (General) |
| 55 | PB3 | I/O | Multiplex-I/O- & Peripherie-Pin PB3 (SPI) |
| 56 | PB4 | I/O | Multiplex-I/O- & Peripherie-Pin PB4 (SPI) |
| 57 | PB5 | I/O | Multiplex-I/O- & Peripherie-Pin PB5 (SPI, I2C, PWM) |
| 58 | PB6 | I/O | Multiplex-I/O- & Peripherie-Pin PB6 (I2C) |
| 59 | PB7 | I/O | Multiplex-I/O- & Peripherie-Pin PB7 (I2C) |
| 60 | BOOT0 | I | Reiner Eingangs-Pin BOOT0 (General) |
| 61 | PB8 | I/O | Multiplex-I/O- & Peripherie-Pin PB8 (I2C) |
| 62 | PB9 | I/O | Multiplex-I/O- & Peripherie-Pin PB9 (I2C) |
| 63 | VSS | GND | Masseanschluss (VSS) |
| 64 | VDD | Power | Versorgungsspannungseingang (VDD — 3.3V VDD (Max 4.0V)) |