component
STM32G431K8T6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-32(7x7). 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
markdownSTM32G431K8T6
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-32(7x7)
STM32G431K8T6 from STMicroelectronics, in a LQFP-32(7x7). 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 | VDD | power_in | Digital supply voltage input; standard operating voltage range 1.71 V to 3.6 V, must be decoupled with filtering ceramic capacitors close to the pin. |
| 2 | PF0-OSC_IN | input | 5V-tolerant analog-switch oscillator input (OSC_IN, FT_fa); alternate functions I2C2_SDA, SPI2_NSS/I2S2_WS, TIM1_CH3N; additional function ADC1_IN10. |
| 3 | PF1-OSC_OUT | output | 3.6V-tolerant analog-switch oscillator output (OSC_OUT, FT_a); alternate function SPI2_SCK/I2S2_CK; additional functions ADC2_IN10, COMP3_INM. |
| 4 | PG10-NRST | bidirectional | Bidirectional reset pin (FT) with embedded weak pull-up resistor; alternate function MCO. |
| 5 | PA0 | bidirectional | TT_a GPIO; alternate functions TIM2_CH1, USART2_CTS, COMP1_OUT, TIM8_BKIN, TIM8_ETR, TIM2_ETR; additional functions ADC12_IN1, COMP1_INM, COMP3_INP, RTC_TAMP2, WKUP1. |
| 6 | PA1 | bidirectional | TT_a GPIO; alternate functions RTC_REFIN, TIM2_CH2, USART2_RTS_DE, TIM15_CH1N; additional functions ADC12_IN2, COMP1_INP, OPAMP1_VINP, OPAMP3_VINP. |
| 7 | PA2 | bidirectional | TT_a GPIO; alternate functions TIM2_CH3, USART2_TX, COMP2_OUT, TIM15_CH1, LPUART1_TX, UCPD1_FRSTX; additional functions ADC1_IN3, COMP2_INM, OPAMP1_VOUT, WKUP4/LSCO. |
| 8 | PA3 | bidirectional | TT_a GPIO; alternate functions TIM2_CH4, SAI1_CK1, USART2_RX, TIM15_CH2, LPUART1_RX, SAI1_MCLK_A; additional functions ADC1_IN4, COMP2_INP, OPAMP1_VINM/OPAMP1_VINP. |
| 9 | PA4 | bidirectional | TT_a GPIO; alternate functions TIM3_CH2, SPI1_NSS, SPI3_NSS/I2S3_WS, USART2_CK, SAI1_FS_B; additional functions ADC2_IN17, DAC1_OUT1, COMP1_INM. |
| 10 | PA5 | bidirectional | TT_a GPIO; alternate functions TIM2_CH1, TIM2_ETR, SPI1_SCK, UCPD1_FRSTX; additional functions ADC2_IN13, DAC1_OUT2, COMP2_INM, OPAMP2_VINM. |
| 11 | PA6 | bidirectional | TT_a GPIO; alternate functions TIM16_CH1, TIM3_CH1, TIM8_BKIN, SPI1_MISO, TIM1_BKIN, COMP1_OUT, LPUART1_CTS; additional functions ADC2_IN3, OPAMP2_VOUT. |
| 12 | PA7 | bidirectional | TT_a GPIO; alternate functions TIM17_CH1, TIM3_CH2, TIM8_CH1N, SPI1_MOSI, TIM1_CH1N, COMP2_OUT, UCPD1_FRSTX; additional functions ADC2_IN4, COMP2_INP, OPAMP1_VINP, OPAMP2_VINP. |
| 13 | PB0 | bidirectional | TT_a GPIO; alternate functions TIM3_CH3, TIM8_CH2N, TIM1_CH2N, UCPD1_FRSTX; additional functions ADC1_IN15, COMP4_INP, OPAMP2_VINP, OPAMP3_VINP. |
| 14 | VSSA | power_in | Analog ground supply pin, reference ground for ADC/DAC/comparators/OPAMPs. |
| 15 | VDDA/VREF+ | power_in | Analog supply voltage and ADC/DAC reference pin, internally merged (VREF+ tied to VDDA) on this package; supply range depends on analog peripheral used (e.g. 1.62 V to 3.6 V for ADC/COMP, 2.4 V for VREFBUF). |
| 16 | VSS | power_in | Digital ground supply pin. |
| 17 | VDD | power_in | Digital supply voltage input; standard operating voltage range 1.71 V to 3.6 V. |
| 18 | PA8 | bidirectional | FT_f GPIO; alternate functions MCO, I2C3_SCL, I2C2_SDA, I2S2_MCK, TIM1_CH1, USART1_CK, TIM4_ETR, SAI1_CK2, SAI1_SCK_A. |
| 19 | PA9 | bidirectional | FT_fd GPIO; alternate functions I2C3_SMBA, I2C2_SCL, I2S3_MCK, TIM1_CH2, USART1_TX, TIM15_BKIN, TIM2_CH3, SAI1_FS_A; additional function UCPD1_DBCC1. |
| 20 | PA10 | bidirectional | FT_da GPIO; alternate functions TIM17_BKIN, USB_CRS_SYNC, I2C2_SMBA, SPI2_MISO, TIM1_CH3, USART1_RX, TIM2_CH4, TIM8_BKIN, SAI1_D1, SAI1_SD_A; additional function UCPD1_DBCC2. |
| 21 | PA11 | bidirectional | FT_u GPIO; alternate functions SPI2_MOSI/I2S2_SD, TIM1_CH1N, USART1_CTS, COMP1_OUT, FDCAN1_RX, TIM4_CH1, TIM1_CH4, TIM1_BKIN2; additional function USB_DM. |
| 22 | PA12 | bidirectional | FT_u GPIO; alternate functions TIM16_CH1, I2SCKIN, TIM1_CH2N, USART1_RTS_DE, COMP2_OUT, FDCAN1_TX, TIM4_CH2, TIM1_ETR; additional function USB_DP. |
| 23 | PA13 | bidirectional | FT_f GPIO, default SWDIO-JTMS debug alternate function after reset with internal pull-up activated; alternate functions TIM16_CH1N, I2C1_SCL, IR_OUT, USART3_CTS, TIM4_CH3, SAI1_SD_B. |
| 24 | PA14 | bidirectional | FT_f GPIO, default SWCLK-JTCK debug alternate function after reset with internal pull-down activated; alternate functions LPTIM1_OUT, I2C1_SDA, TIM8_CH2, TIM1_BKIN, USART2_TX, SAI1_FS_B. |
| 25 | PA15 | bidirectional | FT_f GPIO, default JTDI debug alternate function after reset with internal pull-up activated; alternate functions TIM2_CH1, TIM8_CH1, I2C1_SCL, SPI1_NSS, SPI3_NSS/I2S3_WS, USART2_RX, UART4_RTS_DE, TIM1_BKIN, TIM2_ETR. |
| 26 | PB3 | bidirectional | FT GPIO, default JTDO-TRACESWO debug alternate function after reset; alternate functions TIM2_CH2, TIM4_ETR, USB_CRS_SYNC, TIM8_CH1N, SPI1_SCK, SPI3_SCK/I2S3_CK, USART2_TX, TIM3_ETR, SAI1_SCK_B. |
| 27 | PB4 | bidirectional | FT_c GPIO, default JTRST debug alternate function after reset; alternate functions TIM16_CH1, TIM3_CH1, TIM8_CH2N, SPI1_MISO, SPI3_MISO, USART2_RX, TIM17_BKIN, SAI1_MCLK_B; additional function UCPD1_CC2. |
| 28 | PB5 | bidirectional | FT_f GPIO; alternate functions TIM16_BKIN, TIM3_CH2, TIM8_CH3N, I2C1_SMBA, SPI1_MOSI, SPI3_MOSI/I2S3_SD, USART2_CK, I2C3_SDA, TIM17_CH1, LPTIM1_IN1, SAI1_SD_B. |
| 29 | PB6 | bidirectional | FT_c GPIO; alternate functions TIM16_CH1N, TIM4_CH1, TIM8_CH1, TIM8_ETR, USART1_TX, COMP4_OUT, TIM8_BKIN2, LPTIM1_ETR, SAI1_FS_B; additional function UCPD1_CC1. |
| 30 | PB7 | bidirectional | FT_f GPIO; alternate functions TIM17_CH1N, TIM4_CH2, I2C1_SDA, TIM8_BKIN, USART1_RX, COMP3_OUT, TIM3_CH4, LPTIM1_IN2, UART4_CTS; additional function PVD_IN. |
| 31 | PB8-BOOT0 | bidirectional | FT_f GPIO with dedicated BOOT0 function sampled at reset to select the boot memory; alternate functions TIM16_CH1, TIM4_CH3, SAI1_CK1, I2C1_SCL, USART3_RX, COMP1_OUT, FDCAN1_RX, TIM8_CH2, TIM1_BKIN, SAI1_MCLK_A; recommended to configure in non-analog mode after startup if left unconnected to limit consumption. |
| 32 | VSS | power_in | Digital ground supply pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-32(7x7) |
| Category | Embedded Processors & Controllers |
| Pins | 32 |
CAD (KiCad official)
- Symbol:
STM32G431K8T6 - Footprint:
Package_QFP:LQFP-32_7x7mm_P0.8mm - 3D model: LQFP-32(7x7) (KiCad packages3D, STEP)
- 3D model files:
stm32g431k8t6-etched.step/stm32g431k8t6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32g431k8t6.step/stm32g431k8t6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (200 pp, sha256
5994e7e78a451db7, retrieved 2026-09-24, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).