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STM32G031F6P6TR

STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · TSSOP-20

STM32G031F6P6TR 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	PB7/PB8	bidirectional	Shared package pad: PB7 is a 5 V-tolerant Fm+-capable I/O (FT_fa) with analog switch, ADC_IN11 and PVD_IN, and PB8 is a 5 V-tolerant Fm+-capable I/O (FT_f) with TIM16_CH1 and I2C1_SCL; the datasheet does not state which of the two is bonded to this package.
2	PB9/PC14-OSC32_IN	bidirectional	Shared package pad: PB9 is a 5 V-tolerant Fm+-capable I/O (FT_f) with I2C1_SDA, IR_OUT and TIM17_CH1, and PC14 is a 5 V-tolerant I/O (FT) supplied through the power switch that carries OSC32_IN; the datasheet does not state which of the two is bonded to this package.
3	PC15-OSC32_OUT	bidirectional	5 V-tolerant I/O (FT) supplied through the power switch, which sinks only 3 mA, so in output mode it must not exceed 2 MHz with a 30 pF load and must not be used as a current source; it carries OSC32_OUT.
4	VDD/VDDA	power_in	Power supply: VDD is 1.7 V to 3.6 V for the core and I/Os, and VDDA is 1.62 V (ADC) or 2.4 V (VREFBUF) to 3.6 V for the analog circuits.
5	VSS/VSSA	power_in	Ground reference for the digital and analog supplies; all voltages in the datasheet are referenced to VSS.
6	PF2-NRST	bidirectional	Active-low reset pin with embedded weak pull-up resistor, which also serves as the PF2 I/O with MCO alternate function.
7	PA0	bidirectional	5 V-tolerant I/O (FT_a) with analog switch function, also providing ADC_IN0, TAMP_IN2 and WKUP1.
8	PA1	bidirectional	5 V-tolerant I/O (FT_ea) with switchable diode to VDD and analog switch function, also providing ADC_IN1.
9	PA2	bidirectional	5 V-tolerant I/O (FT_a) with analog switch function, also providing ADC_IN2, WKUP4 and LSCO.
10	PA3	bidirectional	5 V-tolerant I/O (FT_ea) with switchable diode to VDD and analog switch function, also providing ADC_IN3.
11	PA4	bidirectional	5 V-tolerant I/O (FT_a) with analog switch function, also providing ADC_IN4, TAMP_IN1, RTC_TS, RTC_OUT1 and WKUP2.
12	PA5	bidirectional	5 V-tolerant I/O (FT_ea) with switchable diode to VDD and analog switch function, also providing ADC_IN5.
13	PA6	bidirectional	5 V-tolerant I/O (FT_ea) with switchable diode to VDD and analog switch function, also providing ADC_IN6.
14	PA7	bidirectional	5 V-tolerant I/O (FT_a) with analog switch function, also providing ADC_IN7.
15	PB0/PB1/PB2/PA8	bidirectional	Shared package pad: PB0 (FT_ea, ADC_IN8), PB1 (FT_ea, ADC_IN9), PB2 (FT_ea, ADC_IN10) and PA8 (FT) are all listed against this pin; the datasheet does not state which of them is bonded to this package.
16	PA11[PA9]	bidirectional	5 V-tolerant Fm+-capable I/O (FT_fa) with analog switch function and ADC_IN15; its default function is PA11, and PA9 can be remapped onto this pin through the SYSCFG_CFGR1 register.
17	PA12[PA10]	bidirectional	5 V-tolerant Fm+-capable I/O (FT_fa) with analog switch function and ADC_IN16; its default function is PA12, and PA10 can be remapped onto this pin through the SYSCFG_CFGR1 register.
18	PA13	bidirectional	5 V-tolerant I/O (FT_ea) with switchable diode to VDD; upon reset it is configured as SWDIO with an internal pull-up activated, and it also provides IR_OUT, EVENTOUT and ADC_IN17.
19	PA15/PA14-BOOT0	bidirectional	Shared package pad: PA15 is a 5 V-tolerant I/O (FT) and PA14-BOOT0 is a 5 V-tolerant I/O (FT_a) that is configured as SWCLK with an internal pull-down activated upon reset and also provides BOOT0 and ADC_IN18; the datasheet does not state which of the two is bonded to this package.
20	PB3/PB4/PB5/PB6	bidirectional	Shared package pad: PB3 (FT), PB4 (FT), PB5 (FT, WKUP6) and PB6 (FT_f, Fm+-capable, with I2C1_SCL and USART1_TX) are all listed against this pin; the datasheet does not state which of them is bonded to this package.

Key specifications

Parameter	Value
Manufacturer	STMicroelectronics
Package	TSSOP-20
Category	Embedded Processors & Controllers
Pins	20

CAD (KiCad official)

Symbol: STM32G031F6P6TR
Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
3D model: TSSOP-20 (KiCad packages3D, STEP)
3D model files: stm32g031f6p6tr-etched.step / stm32g031f6p6tr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32g031f6p6tr.step / stm32g031f6p6tr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: STMicroelectronics datasheet (117 pp, sha256 0fc5e46abdba3d02, retrieved 2026-10-11, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF