STM32L471 (LQFP-100(14x14))
| Pin | Symbol | Type | Function (EN) |
|---|---|---|---|
| A1 | PE3 | I/O | Multiplexed I/O & Peripheral Pin PE3 (General) |
| A2 | PE1 | I/O | Multiplexed I/O & Peripheral Pin PE1 (General) |
| A3 | PB8 | I/O | Multiplexed I/O & Peripheral Pin PB8 (PWM, CAN) |
| A4 | BOOT0 | I | Input-Only Pin BOOT0 (General) |
| A5 | PD7 | I/O | Multiplexed I/O & Peripheral Pin PD7 (UART) |
| A6 | PD5 | I/O | Multiplexed I/O & Peripheral Pin PD5 (UART) |
| A7 | PB4 (NJTRST) | I/O | Multiplexed I/O & Peripheral Pin PB4 (NJTRST) (UART, SPI, SWD/JTAG) |
| A8 | PB3 (JTDO - TRACESWO) | I/O | Multiplexed I/O & Peripheral Pin PB3 (JTDO - TRACESWO) (UART, SPI, PWM, SWD/JTAG) |
| A9 | PA15(JTDI) | I/O | Multiplexed I/O & Peripheral Pin PA15(JTDI) (UART, SPI, SWD/JTAG) |
| A10 | PA14 (JTCKSWCLK) - | I/O | Multiplexed I/O & Peripheral Pin PA14 (JTCKSWCLK) - (SWD/JTAG) |
| A11 | PA13 (JTMSSWDIO) - | I/O | Multiplexed I/O & Peripheral Pin PA13 (JTMSSWDIO) - (SWD/JTAG) |
| A12 | PA12 | I/O | Multiplexed I/O & Peripheral Pin PA12 (UART, CAN) |
| B1 | PE4 | I/O | Multiplexed I/O & Peripheral Pin PE4 (General) |
| B2 | PE2 | I/O | Multiplexed I/O & Peripheral Pin PE2 (General) |
| B3 | PB9 | I/O | Multiplexed I/O & Peripheral Pin PB9 (I2C, CAN) |
| B4 | PB7 | I/O | Multiplexed I/O & Peripheral Pin PB7 (UART) |
| B5 | PB6 | I/O | Multiplexed I/O & Peripheral Pin PB6 (UART) |
| B6 | PD6 | I/O | Multiplexed I/O & Peripheral Pin PD6 (UART) |
| B7 | PD4 | I/O | Multiplexed I/O & Peripheral Pin PD4 (UART, SPI) |
| B8 | PD3 | I/O | Multiplexed I/O & Peripheral Pin PD3 (UART, SPI) |
| B9 | PD1 | I/O | Multiplexed I/O & Peripheral Pin PD1 (SPI, CAN) |
| B10 | PC12 | I/O | Multiplexed I/O & Peripheral Pin PC12 (UART, SPI) |
| B11 | PC10 | I/O | Multiplexed I/O & Peripheral Pin PC10 (UART, SPI) |
| B12 | PA11 | I/O | Multiplexed I/O & Peripheral Pin PA11 (UART, PWM) |
| C1 | PC13 | I/O | Multiplexed I/O & Peripheral Pin PC13 (RTC/CLK) |
| C2 | PE5 | I/O | Multiplexed I/O & Peripheral Pin PE5 (SPI) |
| C3 | PE0 | I/O | Multiplexed I/O & Peripheral Pin PE0 (General) |
| C4 | VDD | Power | Power Supply Input (VDD — 3.3V VDD (Max 4.0V)) |
| C5 | PB5 | I/O | Multiplexed I/O & Peripheral Pin PB5 (UART, SPI, I2C) |
| C6 | PG14 | I/O | Multiplexed I/O & Peripheral Pin PG14 (I2C) |
| C7 | PG13 | I/O | Multiplexed I/O & Peripheral Pin PG13 (I2C) |
| C8 | PD2 | I/O | Multiplexed I/O & Peripheral Pin PD2 (UART) |
| C9 | PD0 | I/O | Multiplexed I/O & Peripheral Pin PD0 (SPI, CAN) |
| C10 | PC11 | I/O | Multiplexed I/O & Peripheral Pin PC11 (UART, SPI) |
| C11 | VDD | Power | Power Supply Input (VDD — 3.3V VDD (Max 4.0V)) |
| C12 | PA10 | I/O | Multiplexed I/O & Peripheral Pin PA10 (PWM) |
| D1 | PC14 - OSC32_IN (PC14) | I/O | Multiplexed I/O & Peripheral Pin PC14 - OSC32_IN (PC14) (RTC/CLK) |
| D2 | PE6 | I/O | Multiplexed I/O & Peripheral Pin PE6 (RTC/CLK) |
| D3 | VSS | GND | Ground Reference Pin (VSS) |
| D4 | PF2 | I/O | Multiplexed I/O & Peripheral Pin PF2 (I2C) |
| D5 | PF1 | I/O | Multiplexed I/O & Peripheral Pin PF1 (I2C) |
| D6 | PF0 | I/O | Multiplexed I/O & Peripheral Pin PF0 (I2C) |
| D7 | PG12 | I/O | Multiplexed I/O & Peripheral Pin PG12 (UART) |
| D8 | PG10 | I/O | Multiplexed I/O & Peripheral Pin PG10 (UART) |
| D9 | PG9 | I/O | Multiplexed I/O & Peripheral Pin PG9 (SPI) |
| D10 | PA9 | I/O | Multiplexed I/O & Peripheral Pin PA9 (PWM) |
| D11 | PA8 | I/O | Multiplexed I/O & Peripheral Pin PA8 (UART, RTC/CLK) |
| D12 | PC9 | I/O | Multiplexed I/O & Peripheral Pin PC9 (General) |
| E1 | IOE1 | I/O | General Purpose Digital I/O Pin IOE1 |
| E2 | VBAT | Power | Power Supply Input (VBAT — 3.3V VDD (Max 4.0V)) |
| E3 | VSS | GND | Ground Reference Pin (VSS) |
| E4 | PF3 | I/O | Multiplexed I/O & Peripheral Pin PF3 (ADC) |
| E9 | PG5 | I/O | Multiplexed I/O & Peripheral Pin PG5 (UART, SPI) |
| E10 | PC8 | I/O | Multiplexed I/O & Peripheral Pin PC8 (PWM) |
| E11 | PC7 | I/O | Multiplexed I/O & Peripheral Pin PC7 (PWM) |
| E12 | PC6 | I/O | Multiplexed I/O & Peripheral Pin PC6 (PWM) |
| F1 | PH0OSC IN -_ (PH0) | I/O | Multiplexed I/O & Peripheral Pin PH0OSC IN -_ (PH0) (RTC/CLK) |
| F2 | VSS | GND | Ground Reference Pin (VSS) |
| F3 | PF4 | I/O | Multiplexed I/O & Peripheral Pin PF4 (ADC) |
| F4 | PF5 | I/O | Multiplexed I/O & Peripheral Pin PF5 (ADC) |
| F6 | VSS | GND | Ground Reference Pin (VSS) |
| F7 | VSS | GND | Ground Reference Pin (VSS) |
| F9 | PG3 | I/O | Multiplexed I/O & Peripheral Pin PG3 (SPI) |
| F10 | PG4 | I/O | Multiplexed I/O & Peripheral Pin PG4 (SPI) |
| F11 | VSS | GND | Ground Reference Pin (VSS) |
| F12 | VSS | GND | Ground Reference Pin (VSS) |
| G1 | PH1OSC OUT -_ (PH1) | I/O | Multiplexed I/O & Peripheral Pin PH1OSC OUT -_ (PH1) (RTC/CLK) |
| G2 | VDD | Power | Power Supply Input (VDD — 3.3V VDD (Max 4.0V)) |
| G3 | PG11 | I/O | Multiplexed I/O & Peripheral Pin PG11 (UART) |
| G4 | PG6 | I/O | Multiplexed I/O & Peripheral Pin PG6 (UART, I2C) |
| G6 | VDD | Power | Power Supply Input (VDD — 3.3V VDD (Max 4.0V)) |
| G7 | VDDIO2 | Power | Power Supply Input (VDDIO2 — 3.3V VDD (Max 4.0V)) |
| G9 | PG1 | I/O | Multiplexed I/O & Peripheral Pin PG1 (General) |
| G10 | PG2 | I/O | Multiplexed I/O & Peripheral Pin PG2 (SPI) |
| G11 | VDD | Power | Power Supply Input (VDD — 3.3V VDD (Max 4.0V)) |
| G12 | VDD | Power | Power Supply Input (VDD — 3.3V VDD (Max 4.0V)) |
| H1 | PC0 | I/O | Multiplexed I/O & Peripheral Pin PC0 (ADC) |
| H2 | NRST | I | System Enable & Hardware Reset (NRST) |
| H3 | VDD | Power | Power Supply Input (VDD — 3.3V VDD (Max 4.0V)) |
| H4 | PG7 | I/O | Multiplexed I/O & Peripheral Pin PG7 (I2C) |
| H9 | PG0 | I/O | Multiplexed I/O & Peripheral Pin PG0 (General) |
| H10 | PD15 | I/O | Multiplexed I/O & Peripheral Pin PD15 (PWM) |
| H11 | PD14 | I/O | Multiplexed I/O & Peripheral Pin PD14 (PWM) |
| H12 | PD13 | I/O | Multiplexed I/O & Peripheral Pin PD13 (General) |
| J1 | VSSA/VREF - | GND | Ground Reference Pin (VSSA/VREF -) |
| J2 | PC1 | I/O | Multiplexed I/O & Peripheral Pin PC1 (ADC) |
| J3 | PC2 | I/O | Multiplexed I/O & Peripheral Pin PC2 (ADC) |
| J4 | PA4 | I/O | Multiplexed I/O & Peripheral Pin PA4 (UART, SPI, ADC, DAC) |
| J5 | PA7 | I/O | Multiplexed I/O & Peripheral Pin PA7 (ADC, PWM) |
| J6 | PG8 | I/O | Multiplexed I/O & Peripheral Pin PG8 (I2C) |
| J7 | PF12 | I/O | Multiplexed I/O & Peripheral Pin PF12 (General) |
| J8 | PF14 | I/O | Multiplexed I/O & Peripheral Pin PF14 (General) |
| J9 | PF15 | I/O | Multiplexed I/O & Peripheral Pin PF15 (General) |
| J10 | PD12 | I/O | Multiplexed I/O & Peripheral Pin PD12 (UART, PWM) |
| J11 | PD11 | I/O | Multiplexed I/O & Peripheral Pin PD11 (UART, I2C) |
| J12 | PD10 | I/O | Multiplexed I/O & Peripheral Pin PD10 (UART, SPI) |
| K1 | PG15 | I/O | Multiplexed I/O & Peripheral Pin PG15 (I2C) |
| K2 | PC3 | I/O | Multiplexed I/O & Peripheral Pin PC3 (I2C, ADC) |
| K3 | PA2 | I/O | Multiplexed I/O & Peripheral Pin PA2 (UART, ADC, PWM) |
| K4 | PA5 | I/O | Multiplexed I/O & Peripheral Pin PA5 (ADC, DAC, PWM) |
| K5 | PC4 | I/O | Multiplexed I/O & Peripheral Pin PC4 (UART, ADC) |
| K6 | PF11 | I/O | Multiplexed I/O & Peripheral Pin PF11 (General) |
| K7 | PF13 | I/O | Multiplexed I/O & Peripheral Pin PF13 (General) |
| K8 | PD9 | I/O | Multiplexed I/O & Peripheral Pin PD9 (UART) |
| K9 | PD8 | I/O | Multiplexed I/O & Peripheral Pin PD8 (UART) |
| K10 | PB15 | I/O | Multiplexed I/O & Peripheral Pin PB15 (PWM, RTC/CLK) |
| K11 | PB14 | I/O | Multiplexed I/O & Peripheral Pin PB14 (UART, I2C, PWM) |
| K12 | PB13 | I/O | Multiplexed I/O & Peripheral Pin PB13 (UART, SPI, PWM) |
| L1 | VREF+ | Analog | Multiplexed I/O & Peripheral Pin VREF+ (General) |
| L2 | PA0 | I/O | Multiplexed I/O & Peripheral Pin PA0 (UART, ADC, PWM, RTC/CLK) |
| L3 | PA3 | I/O | Multiplexed I/O & Peripheral Pin PA3 (UART, ADC, PWM) |
| L4 | PA6 | I/O | Multiplexed I/O & Peripheral Pin PA6 (UART, ADC) |
| L5 | PC5 | I/O | Multiplexed I/O & Peripheral Pin PC5 (UART, ADC) |
| L6 | PB2 | I/O | Multiplexed I/O & Peripheral Pin PB2 (I2C, RTC/CLK) |
| L7 | PE8 | I/O | Multiplexed I/O & Peripheral Pin PE8 (SPI, PWM) |
| L8 | PE10 | I/O | Multiplexed I/O & Peripheral Pin PE10 (PWM) |
| L9 | PE12 | I/O | Multiplexed I/O & Peripheral Pin PE12 (PWM) |
| L10 | PB10 | I/O | Multiplexed I/O & Peripheral Pin PB10 (UART, SPI, PWM) |
| L11 | PB11 | I/O | Multiplexed I/O & Peripheral Pin PB11 (UART, PWM) |
| L12 | PB12 | I/O | Multiplexed I/O & Peripheral Pin PB12 (UART, I2C) |
| M1 | VDDA | Power | Power Supply Input (VDDA — 3.3V VDD (Max 4.0V)) |
| M2 | PA1 | I/O | Multiplexed I/O & Peripheral Pin PA1 (UART, ADC, PWM) |
| M3 | OPAMP1_VINM | Power | Power Supply Input (OPAMP1_VINM — 3.3V VDD (Max 4.0V)) |
| M4 | OPAMP2_VINM | Power | Power Supply Input (OPAMP2_VINM — 3.3V VDD (Max 4.0V)) |
| M5 | PB0 | I/O | Multiplexed I/O & Peripheral Pin PB0 (UART, ADC, PWM) |
| M6 | PB1 | I/O | Multiplexed I/O & Peripheral Pin PB1 (UART, ADC, PWM) |
| M7 | PE7 | I/O | Multiplexed I/O & Peripheral Pin PE7 (General) |
| M8 | PE9 | I/O | Multiplexed I/O & Peripheral Pin PE9 (PWM) |
| M9 | PE11 | I/O | Multiplexed I/O & Peripheral Pin PE11 (PWM) |
| M10 | PE13 | I/O | Multiplexed I/O & Peripheral Pin PE13 (PWM) |
| M11 | PE14 | I/O | Multiplexed I/O & Peripheral Pin PE14 (SPI, PWM) |
| M12 | PE15 | I/O | Multiplexed I/O & Peripheral Pin PE15 (SPI) |
STM32L471 (LQFP-100(14x14))
STM32L471 (LQFP-144(20x20))
STM32L471 (LQFP-144(20x20))
| Designator / Replacement MPN | Value / Package | Function & PCB Layout Rule |
|---|---|---|
| N/A BOM | Per application circuit UFBGA-132(7x7) | Size power & signal trace widths for rated load current following IPC-2221 clearance rules. |
Manufactured by ST, the STM32L471QEI3 is housed in a UFBGA-132(7x7) package with 132 pins and a 0.50 mm lead pitch, supporting a VCC supply range of 1.71 V to 3.6 V. Key pins include: A1 (PE3: Multiplexed I/O & Peripheral Pin PE3 (General)), A2 (PE1: Multiplexed I/O & Peripheral Pin PE1 (General)), A3 (PB8: Multiplexed I/O & Peripheral Pin PB8 (PWM, CAN)), A4 (BOOT0: Input-Only Pin BOOT0 (General)), A5 (PD7: Multiplexed I/O & Peripheral Pin PD7 (UART)), A6 (PD5: Multiplexed I/O & Peripheral Pin PD5 (UART)).
Normalized from the official datasheet mechanical drawing per IPC-7351B (Density Level B Nominal), STM32L471QEI3 (UFBGA-132(7x7)) has a nominal body envelope of 7.00 × 7.00 mm, pitch e = 0.50 mm, and 132 copper pads.
You can download the verified open-hardware (CERN-OHL-P-2.0) CAD library bundle for STM32L471QEI3 (ST, UFBGA-132(7x7)) directly on this page, including KiCad 8 Footprints (.kicad_mod), Schematic Symbols (.kicad_sym), Autodesk Fusion 360 / Eagle (.lbr), and 3D STEP AP214 / WebGL GLB models.
| Pin # | Signal Name | Electrical Type | Functional Description & Design Notes |
|---|---|---|---|
| A1 | PE3 | Digital_IO | Signal terminal PE3 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PE3. Supported peripheral buses: General. |
| A2 | PE1 | Digital_IO | Signal terminal PE1 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PE1. Supported peripheral buses: General. |
| A3 | PB8 | Digital_IO | Signal terminal PB8 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB8. Supported peripheral buses: PWM, CAN. |
| A4 | BOOT0 | Digital_IO | Signal terminal BOOT0 (I, 3.3V VDD (Max 4.0V) domain). Multiplexed alternate functions: BOOT0. Supported peripheral buses: General. |
| A5 | PD7 | Digital_IO | Signal terminal PD7 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PD7. Supported peripheral buses: UART. |
| A6 | PD5 | Digital_IO | Signal terminal PD5 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PD5. Supported peripheral buses: UART. |
| A7 | PB4 (NJTRST) | Digital_IO | Signal terminal PB4 (NJTRST) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_MISOSPI3MISO. Supported peripheral buses: UART, SPI, SWD/JTAG. |
| A8 | PB3 (JTDO - TRACESWO) | Digital_IO | Signal terminal PB3 (JTDO - TRACESWO) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_SCK. Supported peripheral buses: UART, SPI, PWM, SWD/JTAG. |
| A9 | PA15(JTDI) | Digital_IO | Signal terminal PA15(JTDI) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_NSS. Supported peripheral buses: UART, SPI, SWD/JTAG. |
| A10 | PA14 (JTCKSWCLK) - | Digital_IO | Signal terminal PA14 (JTCKSWCLK) - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA14 (JTCKSWCLK) -. Supported peripheral buses: SWD/JTAG. |
| A11 | PA13 (JTMSSWDIO) - | Digital_IO | Signal terminal PA13 (JTMSSWDIO) - (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA13 (JTMSSWDIO) -. Supported peripheral buses: SWD/JTAG. |
| A12 | PA12 | Digital_IO | Signal terminal PA12 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA12. Supported peripheral buses: UART, CAN. |
| B1 | PE4 | Digital_IO | Signal terminal PE4 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PE4. Supported peripheral buses: General. |
| B2 | PE2 | Digital_IO | Signal terminal PE2 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PE2. Supported peripheral buses: General. |
| B3 | PB9 | Digital_IO | Signal terminal PB9 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB9. Supported peripheral buses: I2C, CAN. |
| B4 | PB7 | Digital_IO | Signal terminal PB7 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB7. Supported peripheral buses: UART. |
| B5 | PB6 | Digital_IO | Signal terminal PB6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PB6. Supported peripheral buses: UART. |
| B6 | PD6 | Digital_IO | Signal terminal PD6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PD6. Supported peripheral buses: UART. |
| B7 | PD4 | Digital_IO | Signal terminal PD4 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_MOSI. Supported peripheral buses: UART, SPI. |
| B8 | PD3 | Digital_IO | Signal terminal PD3 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_MISO. Supported peripheral buses: UART, SPI. |
| B9 | PD1 | Digital_IO | Signal terminal PD1 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_SCK. Supported peripheral buses: SPI, CAN. |
| B10 | PC12 | Digital_IO | Signal terminal PC12 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_MOSIUSART3CK. Supported peripheral buses: UART, SPI. |
| B11 | PC10 | Digital_IO | Signal terminal PC10 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_SCKUSART3TX. Supported peripheral buses: UART, SPI. |
| B12 | PA11 | Digital_IO | Signal terminal PA11 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA11. Supported peripheral buses: UART, PWM. |
| C1 | PC13 | Digital_IO | Signal terminal PC13 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC13. Supported peripheral buses: RTC/CLK. |
| C2 | PE5 | Digital_IO | Signal terminal PE5 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PE5. Supported peripheral buses: SPI. |
| C3 | PE0 | Digital_IO | Signal terminal PE0 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PE0. Supported peripheral buses: General. |
| C4 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| C5 | PB5 | Digital_IO | Signal terminal PB5 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_MOSIUSART1CK. Supported peripheral buses: UART, SPI, I2C. |
| C6 | PG14 | Digital_IO | Signal terminal PG14 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PG14. Supported peripheral buses: I2C. |
| C7 | PG13 | Digital_IO | Signal terminal PG13 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PG13. Supported peripheral buses: I2C. |
| C8 | PD2 | Digital_IO | Signal terminal PD2 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PD2. Supported peripheral buses: UART. |
| C9 | PD0 | Digital_IO | Signal terminal PD0 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI2_NSS. Supported peripheral buses: SPI, CAN. |
| C10 | PC11 | Digital_IO | Signal terminal PC11 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_MISOUSART3RX. Supported peripheral buses: UART, SPI. |
| C11 | VDD | Power_In | Primary positive power supply input (VDD) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| C12 | PA10 | Digital_IO | Signal terminal PA10 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA10. Supported peripheral buses: PWM. |
| D1 | PC14 - OSC32_IN (PC14) | Digital_IO | Signal terminal PC14 - OSC32_IN (PC14) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC14 - OSC32_IN (PC14). Supported peripheral buses: RTC/CLK. |
| D2 | PE6 | Digital_IO | Signal terminal PE6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PE6. Supported peripheral buses: RTC/CLK. |
| D3 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| D4 | PF2 | Digital_IO | Signal terminal PF2 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PF2. Supported peripheral buses: I2C. |
| D5 | PF1 | Digital_IO | Signal terminal PF1 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PF1. Supported peripheral buses: I2C. |
| D6 | PF0 | Digital_IO | Signal terminal PF0 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PF0. Supported peripheral buses: I2C. |
| D7 | PG12 | Digital_IO | Signal terminal PG12 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PG12. Supported peripheral buses: UART. |
| D8 | PG10 | Digital_IO | Signal terminal PG10 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PG10. Supported peripheral buses: UART. |
| D9 | PG9 | Digital_IO | Signal terminal PG9 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI3_SCKUSART1TX. Supported peripheral buses: SPI. |
| D10 | PA9 | Digital_IO | Signal terminal PA9 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA9. Supported peripheral buses: PWM. |
| D11 | PA8 | Digital_IO | Signal terminal PA8 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PA8. Supported peripheral buses: UART, RTC/CLK. |
| D12 | PC9 | Digital_IO | Signal terminal PC9 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC9. Supported peripheral buses: General. |
| E1 | IOE1 | Digital_IO | General Purpose Digital I/O Pin IOE1 |
| E2 | VBAT | Power_In | Primary positive power supply input (VBAT) operating in the 3.3V VDD (Max 4.0V) domain (Max rating: 4.0V). |
| E3 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| E4 | PF3 | Digital_IO | Signal terminal PF3 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PF3. Supported peripheral buses: ADC. |
| E9 | PG5 | Digital_IO | Signal terminal PG5 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_NSS. Supported peripheral buses: UART, SPI. |
| E10 | PC8 | Digital_IO | Signal terminal PC8 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC8. Supported peripheral buses: PWM. |
| E11 | PC7 | Digital_IO | Signal terminal PC7 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC7. Supported peripheral buses: PWM. |
| E12 | PC6 | Digital_IO | Signal terminal PC6 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PC6. Supported peripheral buses: PWM. |
| F1 | PH0OSC IN -_ (PH0) | Digital_IO | Signal terminal PH0OSC IN -_ (PH0) (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PH0OSC IN -_ (PH0). Supported peripheral buses: RTC/CLK. |
| F2 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| F3 | PF4 | Digital_IO | Signal terminal PF4 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PF4. Supported peripheral buses: ADC. |
| F4 | PF5 | Digital_IO | Signal terminal PF5 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: PF5. Supported peripheral buses: ADC. |
| F6 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| F7 | VSS | GND | 0V electrical ground return terminal (VSS) for internal core logic, I/O drivers, and analog sub-blocks. |
| F9 | PG3 | Digital_IO | Signal terminal PG3 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_MISOFMCA13. Supported peripheral buses: SPI. |
| F10 | PG4 | Digital_IO | Signal terminal PG4 (I/O, 3.3V VDD (5V-Tolerant FT) domain). Multiplexed alternate functions: SPI1_MOSIFMCA14. Supported peripheral buses: SPI. |