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STM32F031F6P6
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STMicroelectronics Microcontrollers (MCU/MPU/SOC), TSSOP-20. Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSTM32F031F6P6
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · TSSOP-20
STM32F031F6P6 from STMicroelectronics, in a TSSOP-20. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model, then checked against ST open pin data); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | BOOT0 | input | Boot memory selection input pin; selects boot address (user flash or bootloader) on device reset. |
| 2 | PF0-OSC_IN | input | High-speed external oscillator input for 4-32 MHz crystal with 5V-tolerant I/O capability. |
| 3 | PF1-OSC_OUT | output | High-speed external oscillator output for 4-32 MHz crystal with 5V-tolerant I/O capability. |
| 4 | NRST | bidirectional | Asynchronous reset input / reset output (active low) with internal weak pull-up resistor. |
| 5 | VDDA | power_in | Analog power supply for ADC and internal voltage regulator; 2.4-3.6 V with 100 nF decoupling capacitor required. |
| 6 | PA0 | bidirectional | General-purpose I/O port A bit 0, 3.3V-tolerant connected to ADC; supports TIM2_CH1_ETR, USART1_CTS alternate functions and ADC channel 0. |
| 7 | PA1 | bidirectional | General-purpose I/O port A bit 1, 3.3V-tolerant connected to ADC; supports TIM2_CH2, USART1_RTS alternate functions and ADC channel 1. |
| 8 | PA2 | bidirectional | General-purpose I/O port A bit 2, 3.3V-tolerant connected to ADC; supports TIM2_CH3, USART1_TX alternate functions and ADC channel 2. |
| 9 | PA3 | bidirectional | General-purpose I/O port A bit 3, 3.3V-tolerant connected to ADC; supports TIM2_CH4, USART1_RX alternate functions and ADC channel 3. |
| 10 | PA4 | bidirectional | General-purpose I/O port A bit 4, 3.3V-tolerant connected to ADC; supports SPI1_NSS, I2S1_WS, TIM14_CH1, USART1_CK alternate functions and ADC channel 4. |
| 11 | PA5 | bidirectional | General-purpose I/O port A bit 5, 3.3V-tolerant connected to ADC; supports SPI1_SCK, I2S1_CK, TIM2_CH1_ETR alternate functions and ADC channel 5. |
| 12 | PA6 | bidirectional | General-purpose I/O port A bit 6, 3.3V-tolerant connected to ADC; supports SPI1_MISO, I2S1_MCK, TIM3_CH1, TIM1_BKIN, TIM16_CH1 alternate functions and ADC channel 6. |
| 13 | PA7 | bidirectional | General-purpose I/O port A bit 7, 3.3V-tolerant connected to ADC; supports SPI1_MOSI, I2S1_SD, TIM3_CH2, TIM1_CH1N, TIM17_CH1 alternate functions and ADC channel 7. |
| 14 | PB1 | bidirectional | General-purpose I/O port B bit 1, 3.3V-tolerant connected to ADC; supports TIM3_CH4, TIM14_CH1, TIM1_CH3N alternate functions and ADC channel 9. |
| 15 | VSS | power_in | Digital ground; analog ground (VSSA) is internally connected to this VSS pin. |
| 16 | VDD | power_in | Digital power supply, 2.0-3.6 V; requires 100 nF ceramic capacitor and 4.7 µF electrolytic capacitor close to pins. |
| 17 | PA9 | bidirectional | General-purpose I/O port A bit 9, 5V-tolerant I/O capable (FTf); supports USART1_TX, TIM1_CH2, I2C1_SCL with Fast Mode Plus (1 Mbit/s) capability. |
| 18 | PA10 | bidirectional | General-purpose I/O port A bit 10, 5V-tolerant I/O capable (FTf); supports USART1_RX, TIM1_CH3, I2C1_SDA with Fast Mode Plus and Stop mode wakeup. |
| 19 | PA13 | bidirectional | Port A bit 13, 5V-tolerant I/O; configured as Serial Wire Debug I/O (SWDIO) after reset with internal pull-up enabled. |
| 20 | PA14 | bidirectional | Port A bit 14, 5V-tolerant I/O; configured as Serial Wire Debug Clock (SWCLK) after reset with internal pull-down enabled. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | TSSOP-20 |
| Category | Embedded Processors & Controllers |
| Pins | 20 |
CAD (KiCad official)
- Symbol:
STM32F031F6P6 - Footprint:
Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm - 3D model: TSSOP-20 (KiCad packages3D, STEP)
- 3D model files:
stm32f031f6p6-etched.step/stm32f031f6p6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32f031f6p6.step/stm32f031f6p6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (106 pp, sha256
36b17e3dce795273, retrieved 2026-10-01, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).