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STM32C031C6T6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-48(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
markdownSTM32C031C6T6
STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-48(7x7)
STM32C031C6T6 from STMicroelectronics, in a LQFP-48(7x7). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | PC13 | bidirectional | 5V-tolerant (FT) general-purpose I/O; alternate functions TIM1_ETR, TIM1_BKIN; additional functions RTC timestamp input (RTC_TS), RTC calibration/alarm output (RTC_OUT1) and wakeup pin WKUP2. |
| 2 | PC14-OSCX_IN (PC14) | bidirectional | 5V-tolerant (FT) I/O, default function is LSE 32.768 kHz oscillator input (OSCX_IN); alternate functions USART1_TX, TIM1_ETR, TIM1_BKIN2, IR_OUT, USART2_RTS_DE_CK, TIM17_CH1, TIM3_CH2, I2C1_SDA, EVENTOUT. |
| 3 | PC15-OSCX_OUT (PC15) | bidirectional | 5V-tolerant (FT) I/O, default function is LSE 32.768 kHz oscillator output (OSCX_OUT); alternate functions OSC32_EN, OSC_EN, TIM1_ETR, TIM3_CH3. |
| 4 | PF3 | passive | Pin listed as type S with no alternate or additional function in the pin assignment table; function/behavior is not further described in this datasheet section (see review note). |
| 5 | VREF+ | power_in | Positive analog reference voltage input for the ADC; must be between 2.0 V and VDDA, can be grounded when the analog peripherals using it are inactive. |
| 6 | VDD/VDDA | power_in | Main digital and analog power supply input, 2.0 V (1.96 V min functional) to 3.6 V, supplies the internal regulator, system analog blocks and the ADC. |
| 7 | VSS/VSSA | power_in | Digital and analog ground reference pin. |
| 8 | PF0-OSC_IN (PF0) | bidirectional | 5V-tolerant (FT) I/O, default function is HSE crystal/external clock input (OSC_IN, 4-48 MHz); alternate function TIM14_CH1. |
| 9 | PF1-OSC_OUT (PF1) | bidirectional | 5V-tolerant (FT) I/O, default function is HSE crystal oscillator output (OSC_OUT); alternate function OSC_EN. |
| 10 | PF2-NRST | bidirectional | 5V-tolerant (FT) I/O shared with the bidirectional reset pin NRST, which has an embedded weak pull-up resistor; alternate functions MCO, TIM1_CH4. |
| 11 | PA0 | bidirectional | 5V-tolerant (FT) I/O; alternate functions USART2_CTS, TIM16_CH1, USART1_TX, TIM1_CH1; additional functions ADC_IN0 and wakeup pin WKUP1. |
| 12 | PA1 | bidirectional | 5V-tolerant (FT) I/O; alternate functions SPI1_SCK/I2S1_CK, USART2_RTS_DE_CK, TIM17_CH1, USART1_RX, TIM1_CH2, I2C1_SMBA, EVENTOUT; additional function ADC_IN1. |
| 13 | PA2 | bidirectional | 5V-tolerant (FT) I/O; alternate functions SPI1_MOSI/I2S1_SD, USART2_TX, TIM16_CH1N, TIM3_ETR, TIM1_CH3; additional functions ADC_IN2, wakeup pin WKUP4 and LSCO clock output. |
| 14 | PA3 | bidirectional | 5V-tolerant (FT) I/O; alternate functions USART2_RX, TIM1_CH1N, TIM1_CH4, EVENTOUT; additional function ADC_IN3. |
| 15 | PA4 | bidirectional | 5V-tolerant (FT) I/O; alternate functions SPI1_NSS/I2S1_WS, USART2_TX, TIM1_CH2N, TIM14_CH1, TIM17_CH1N, EVENTOUT; additional functions ADC_IN4 and RTC_OUT2. |
| 16 | PA5 | bidirectional | 5V-tolerant (FT) I/O; alternate functions SPI1_SCK/I2S1_CK, USART2_RX, TIM1_CH3N, TIM1_CH1, EVENTOUT; additional function ADC_IN5. |
| 17 | PA6 | bidirectional | 5V-tolerant (FT) I/O; alternate functions SPI1_MISO/I2S1_MCK, TIM3_CH1, TIM1_BKIN, TIM16_CH1; additional function ADC_IN6. |
| 18 | PA7 | bidirectional | 5V-tolerant (FT) I/O; alternate functions SPI1_MOSI/I2S1_SD, TIM3_CH2, TIM1_CH1N, TIM14_CH1, TIM17_CH1; additional function ADC_IN7. |
| 19 | PB0 | bidirectional | 5V-tolerant (FT) I/O; alternate functions SPI1_NSS/I2S1_WS, TIM3_CH3, TIM1_CH2N; additional function ADC_IN17. |
| 20 | PB1 | bidirectional | 5V-tolerant (FT) I/O; alternate functions TIM14_CH1, TIM3_CH4, TIM1_CH3N, TIM1_CH2N, EVENTOUT; additional function ADC_IN18. |
| 21 | PB2 | bidirectional | 5V-tolerant (FT) I/O; alternate functions USART1_RX, MCO2, EVENTOUT; additional function ADC_IN19. |
| 22 | PB10 | bidirectional | 5V-tolerant (FT) I/O with no listed alternate function; additional function ADC_IN20. |
| 23 | PB11 | bidirectional | 5V-tolerant (FT) I/O with no listed alternate function; additional function ADC_IN21. |
| 24 | PB12 | bidirectional | 5V-tolerant (FT) I/O; alternate functions TIM1_BKIN2, TIM1_BKIN, EVENTOUT; additional function ADC_IN22. |
| 25 | PB13 | bidirectional | 5V-tolerant (FT) I/O; alternate functions TIM1_CH1N, EVENTOUT; no additional function listed. |
| 26 | PB14 | bidirectional | 5V-tolerant (FT) I/O; alternate functions TIM1_CH2N, EVENTOUT; no additional function listed. |
| 27 | PB15 | bidirectional | 5V-tolerant (FT) I/O; alternate functions TIM1_CH3N, EVENTOUT; additional function RTC_REFIN. |
| 28 | PA8 | bidirectional | 5V-tolerant (FT) I/O; alternate functions MCO, USART2_TX, TIM1_CH1, EVENTOUT, SPI1_NSS/I2S1_WS, TIM1_CH2N, TIM1_CH3N, TIM3_CH3, TIM3_CH4, TIM14_CH1, USART1_RX, MCO2; additional function ADC_IN8. |
| 29 | PA9 | bidirectional | 5V-tolerant (FT) I/O; alternate functions MCO, USART1_TX, TIM1_CH2, TIM3_ETR, I2C1_SCL, EVENTOUT; can be remapped to appear on pin 33 in place of PA11 via SYSCFG_CFGR1. |
| 30 | PC6 | bidirectional | 5V-tolerant (FT) I/O; alternate function TIM3_CH1; no additional function listed. |
| 31 | PC7 | bidirectional | 5V-tolerant (FT) I/O; alternate function TIM3_CH2; no additional function listed. |
| 32 | PA10 | bidirectional | 5V-tolerant (FT) I/O; alternate functions USART1_RX, TIM1_CH3, MCO2, TIM17_BKIN, I2C1_SDA, EVENTOUT; can be remapped to appear on pin 34 in place of PA12 via SYSCFG_CFGR1. |
| 33 | PA11 [PA9] | bidirectional | 5V-tolerant (FT) I/O; alternate functions SPI1_MISO/I2S1_MCK, USART1_CTS, TIM1_CH4, TIM1_BKIN2; additional function ADC_IN11; PA9 function can be remapped onto this pin via SYSCFG_CFGR1. |
| 34 | PA12 [PA10] | bidirectional | 5V-tolerant (FT) I/O; alternate functions SPI1_MOSI/I2S1_SD, USART1_RTS_DE_CK, TIM1_ETR, I2S_CKIN; additional function ADC_IN12; PA10 function can be remapped onto this pin via SYSCFG_CFGR1. |
| 35 | PA13 | bidirectional | 5V-tolerant (FT) I/O; default alternate function SWDIO (SWD data), also IR_OUT, TIM3_ETR, USART2_RX, EVENTOUT; additional function ADC_IN13; internal pull-up active on this pin at reset. |
| 36 | PA14-BOOT0 | bidirectional | 5V-tolerant (FT) I/O; default alternate function SWCLK (SWD clock), also USART2_TX, EVENTOUT, SPI1_NSS/I2S1_WS, USART2_RX, TIM1_CH1, MCO2, USART1_RTS_DE_CK; additional functions ADC_IN14 and BOOT0 boot-selector; internal pull-down active on this pin at reset. |
| 37 | PA15 | bidirectional | 5V-tolerant (FT) I/O; alternate functions SPI1_NSS/I2S1_WS, USART2_RX, TIM1_CH1, MCO2, USART1_RTS_DE_CK, EVENTOUT; no additional function listed. |
| 38 | PD0 | bidirectional | 5V-tolerant (FT) I/O; alternate functions EVENTOUT, TIM16_CH1; no additional function listed. |
| 39 | PD1 | bidirectional | 5V-tolerant (FT) I/O; alternate functions EVENTOUT, TIM17_CH1; no additional function listed. |
| 40 | PD2 | bidirectional | 5V-tolerant (FT) I/O; alternate functions TIM3_ETR, TIM1_CH1N; no additional function listed. |
| 41 | PD3 | bidirectional | 5V-tolerant (FT) I/O; alternate functions USART2_CTS, TIM1_CH2N; no additional function listed. |
| 42 | PB3 | bidirectional | 5V-tolerant (FT) I/O; alternate functions SPI1_SCK/I2S1_CK, TIM1_CH2, TIM3_CH2, USART1_RTS_DE_CK, EVENTOUT; no additional function listed. |
| 43 | PB4 | bidirectional | 5V-tolerant (FT) I/O; alternate functions SPI1_MISO/I2S1_MCK, TIM3_CH1, USART1_CTS, TIM17_BKIN, EVENTOUT; no additional function listed. |
| 44 | PB5 | bidirectional | 5V-tolerant (FT) I/O; alternate functions SPI1_MOSI/I2S1_SD, TIM3_CH2, TIM16_BKIN, TIM3_CH3, I2C1_SMBA; additional function wakeup pin WKUP6. |
| 45 | PB6 | bidirectional | 5V-tolerant (FT) I/O; alternate functions USART1_TX, TIM1_CH3, TIM16_CH1N, TIM3_CH3, USART1_RTS_DE_CK, USART1_CTS, I2C1_SCL, I2C1_SMBA, SPI1_MOSI/I2S1_SD, SPI1_MISO/I2S1_MCK, SPI1_SCK/I2S1_CK, TIM1_CH2, TIM3_CH1, TIM3_CH2, TIM16_BKIN, TIM17_BKIN; additional function wakeup pin WKUP3. |
| 46 | PB7 | bidirectional | 5V-tolerant (FT) I/O; alternate functions USART1_RX, TIM1_CH4, TIM17_CH1N, TIM3_CH4, I2C1_SDA, EVENTOUT, USART2_CTS, TIM16_CH1, TIM3_CH1, I2C1_SCL; no additional function listed on this package. |
| 47 | PB8 | bidirectional | 5V-tolerant (FT) I/O; alternate functions USART2_CTS, TIM16_CH1, TIM3_CH1, I2C1_SCL, EVENTOUT; no additional function listed. |
| 48 | PB9 | bidirectional | 5V-tolerant (FT) I/O; alternate functions IR_OUT, USART2_RTS_DE_CK, TIM17_CH1, TIM3_CH2, I2C1_SDA, EVENTOUT; no additional function listed. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LQFP-48(7x7) |
| Category | Embedded Processors & Controllers |
| Pins | 48 |
CAD (KiCad official)
- Symbol:
STM32C031C6T6 - Footprint:
Package_QFP:LQFP-48_7x7mm_P0.5mm - 3D model: LQFP-48(7x7) (KiCad packages3D, STEP)
- 3D model files:
stm32c031c6t6-etched.step/stm32c031c6t6-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);stm32c031c6t6.step/stm32c031c6t6.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (108 pp, sha256
c0de50247b672919, retrieved 2026-09-23, 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).