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STM32G474RBT6

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STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.

componentembedded processors & controllersstm32g474rbt6factory-2.0.0extractor-text
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Symbol & Footprint

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Datasheet

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Contents

README

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STM32G474RBT6

STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)

STM32G474RBT6 from STMicroelectronics, in a LQFP-64(10x10). 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 VBAT power_in Backup supply pin for RTC, LSE oscillator and backup registers, operating range 1.55 V to 3.6 V, to be connected to VDD if no external battery is used.
2 PC13 bidirectional 5V-tolerant (FT) GPIO with alternate functions TIM1_BKIN/TIM1_CH1N/TIM8_CH4N/EVENTOUT and additional functions WKUP2/RTC_TAMP1/RTC_TS/RTC_OUT1; supplied through an internal power switch limited to 3 mA so output speed must not exceed 2 MHz (30 pF load) and it must not be used as a current source.
3 PC14-OSC32_IN bidirectional 5V-tolerant (FT) GPIO, alternate function EVENTOUT, additional function OSC32_IN for the 32.768 kHz LSE crystal oscillator input; supplied through the same limited power switch as PC13/PC15.
4 PC15-OSC32_OUT bidirectional 5V-tolerant (FT) GPIO, alternate function EVENTOUT, additional function OSC32_OUT for the 32.768 kHz LSE crystal oscillator output; supplied through the same limited power switch as PC13/PC14.
5 PF0-OSC_IN bidirectional FT_fa GPIO with alternate functions I2C2_SDA, SPI2_NSS/I2S2_WS, TIM1_CH3N, EVENTOUT and additional functions ADC1_IN10 and OSC_IN (4-48 MHz HSE crystal oscillator input).
6 PF1-OSC_OUT bidirectional FT_a GPIO with alternate function SPI2_SCK/I2S2_CK, EVENTOUT and additional functions ADC2_IN10, COMP3_INM and OSC_OUT (HSE crystal oscillator output).
7 PG10-NRST bidirectional Bidirectional reset I/O (FT) with embedded weak pull-up, alternate functions MCO/EVENTOUT, additional function NRST; driving this pin low resets the device (note: figure-confirmed pin number 7; the pin-definition table lists an inconsistent value of 8, see review notes).
8 PC0 bidirectional FT_a GPIO with alternate functions LPTIM1_IN1, TIM1_CH1, LPUART1_RX, EVENTOUT and additional functions ADC12_IN6 and COMP3_INM.
9 PC1 bidirectional TT_a GPIO with alternate functions LPTIM1_OUT, TIM1_CH2, LPUART1_TX, QUADSPI1_BK2_IO0, SAI1_SD_A, EVENTOUT and additional functions ADC12_IN7 and COMP3_INP.
10 PC2 bidirectional FT_a GPIO with alternate functions LPTIM1_IN2, TIM1_CH3, COMP3_OUT, TIM20_CH2, QUADSPI1_BK2_IO1, EVENTOUT and additional function ADC12_IN8.
11 PC3 bidirectional TT_a GPIO with alternate functions LPTIM1_ETR, TIM1_CH4, SAI1_D1, TIM1_BKIN2, QUADSPI1_BK2_IO2, SAI1_SD_A, EVENTOUT and additional functions ADC12_IN9 and OPAMP5_VINP.
12 PA0 bidirectional TT_a GPIO with alternate functions TIM2_CH1, TIM5_CH1, USART2_CTS, COMP1_OUT, TIM8_BKIN, TIM8_ETR, TIM2_ETR, EVENTOUT and additional functions ADC12_IN1, COMP1_INM, COMP3_INP, RTC_TAMP2, WKUP1.
13 PA1 bidirectional TT_a GPIO with alternate functions RTC_REFIN, TIM2_CH2, TIM5_CH2, USART2_RTS_DE, TIM15_CH1N, EVENTOUT and additional functions ADC12_IN2, COMP1_INP, OPAMP1_VINP, OPAMP3_VINP, OPAMP6_VINM.
14 PA2 bidirectional FT_a GPIO with alternate functions TIM2_CH3, TIM5_CH3, USART2_TX, COMP2_OUT, TIM15_CH1, QUADSPI1_BK1_NCS, LPUART1_TX, UCPD1_FRSTX, EVENTOUT and additional functions ADC1_IN3, COMP2_INM, OPAMP1_VOUT, WKUP4/LSCO.
15 VSS power_in Digital ground pin.
16 VDD power_in Digital supply voltage pin, operating range 1.71 V to 3.6 V.
17 PA3 bidirectional TT_a GPIO with alternate functions TIM2_CH4, TIM5_CH4, SAI1_CK1, USART2_RX, TIM15_CH2, QUADSPI1_CLK, LPUART1_RX, SAI1_MCLK_A, EVENTOUT and additional functions ADC1_IN4, COMP2_INP, OPAMP1_VINM/OPAMP1_VINP, OPAMP5_VINM.
18 PA4 bidirectional TT_a GPIO with alternate functions TIM3_CH2, SPI1_NSS, SPI3_NSS/I2S3_WS, USART2_CK, SAI1_FS_B, EVENTOUT and additional functions ADC2_IN17, DAC1_OUT1, COMP1_INM.
19 PA5 bidirectional TT_a GPIO with alternate functions TIM2_CH1, TIM2_ETR, SPI1_SCK, UCPD1_FRSTX, EVENTOUT and additional functions ADC2_IN13, DAC1_OUT2, COMP2_INM, OPAMP2_VINM.
20 PA6 bidirectional TT_a GPIO with alternate functions TIM16_CH1, TIM3_CH1, TIM8_BKIN, SPI1_MISO, TIM1_BKIN, COMP1_OUT, QUADSPI1_BK1_IO3, LPUART1_CTS, EVENTOUT and additional functions ADC2_IN3, DAC2_OUT1, OPAMP2_VOUT.
21 PA7 bidirectional TT_a GPIO with alternate functions TIM17_CH1, TIM3_CH2, TIM8_CH1N, SPI1_MOSI, TIM1_CH1N, COMP2_OUT, QUADSPI1_BK1_IO2, UCPD1_FRSTX, EVENTOUT and additional functions ADC2_IN4, COMP2_INP, OPAMP1_VINP, OPAMP2_VINP.
22 PC4 bidirectional FT_fa GPIO with alternate functions TIM1_ETR, I2C2_SCL, USART1_TX, QUADSPI1_BK2_IO3, EVENTOUT and additional function ADC2_IN5.
23 PC5 bidirectional TT_a GPIO with alternate functions TIM15_BKIN, SAI1_D3, TIM1_CH4N, USART1_RX, HRTIM1_EEV10, EVENTOUT and additional functions ADC2_IN11, OPAMP1_VINM, OPAMP2_VINM, WKUP5.
24 PB0 bidirectional TT_a GPIO with alternate functions TIM3_CH3, TIM8_CH2N, TIM1_CH2N, QUADSPI1_BK1_IO1, HRTIM1_FLT5, UCPD1_FRSTX, EVENTOUT and additional functions ADC3_IN12/ADC1_IN15, COMP4_INP, OPAMP2_VINP, OPAMP3_VINP.
25 PB1 bidirectional TT_a GPIO with alternate functions TIM3_CH4, TIM8_CH3N, TIM1_CH3N, COMP4_OUT, QUADSPI1_BK1_IO0, LPUART1_RTS_DE, HRTIM1_SCOUT, EVENTOUT and additional functions ADC3_IN1/ADC1_IN12, COMP1_INP, OPAMP3_VOUT, OPAMP6_VINM.
26 PB2 bidirectional TT_a GPIO with alternate functions RTC_OUT2, LPTIM1_OUT, TIM5_CH1, TIM20_CH1, I2C3_SMBA, QUADSPI1_BK2_IO1, HRTIM1_SCIN, EVENTOUT and additional functions ADC2_IN12, COMP4_INM, OPAMP3_VINM.
27 VSSA power_in Analog ground pin.
28 VREF+ power_in Positive reference voltage supply for the ADC/DAC and VREFBUF output pin.
29 VDDA power_in Analog supply voltage pin, range 1.62 V (ADC) to 3.6 V; 1.8 V minimum when DAC/OPAMP used, 2.4 V minimum when VREFBUF used.
30 PB10 bidirectional TT_a GPIO with alternate functions TIM2_CH3, USART3_TX, LPUART1_RX, QUADSPI1_CLK, TIM1_BKIN, HRTIM1_FLT3, SAI1_SCK_A, EVENTOUT and additional functions COMP5_INM, OPAMP3_VINM, OPAMP4_VINM.
31 VSS power_in Digital ground pin.
32 VDD power_in Digital supply voltage pin, operating range 1.71 V to 3.6 V.
33 PB11 bidirectional TT_a GPIO with alternate functions TIM2_CH4, USART3_RX, LPUART1_TX, QUADSPI1_BK1_NCS, HRTIM1_FLT4, EVENTOUT and additional functions ADC12_IN14, COMP6_INP, OPAMP4_VINP, OPAMP6_VOUT.
34 PB12 bidirectional TT_a GPIO with alternate functions TIM5_ETR, I2C2_SMBA, SPI2_NSS/I2S2_WS, TIM1_BKIN, USART3_CK, LPUART1_RTS_DE, FDCAN2_RX, HRTIM1_CHC1, EVENTOUT and additional functions ADC4_IN3/ADC1_IN11, COMP7_INM, OPAMP4_VOUT, OPAMP6_VINP.
35 PB13 bidirectional TT_a GPIO with alternate functions SPI2_SCK/I2S2_CK, TIM1_CH1N, USART3_CTS, LPUART1_CTS, FDCAN2_TX, HRTIM1_CHC2, EVENTOUT and additional functions ADC3_IN5, COMP5_INP, OPAMP3_VINP, OPAMP4_VINP, OPAMP6_VINP.
36 PB14 bidirectional TT_a GPIO with alternate functions TIM15_CH1, SPI2_MISO, TIM1_CH2N, USART3_RTS_DE, COMP4_OUT, HRTIM1_CHD1, EVENTOUT and additional functions ADC4_IN4/ADC1_IN5, COMP7_INP, OPAMP2_VINP, OPAMP5_VINP.
37 PB15 bidirectional TT_a GPIO with alternate functions RTC_REFIN, TIM15_CH2, TIM15_CH1N, COMP3_OUT, TIM1_CH3N, SPI2_MOSI/I2S2_SD, HRTIM1_CHD2, EVENTOUT and additional functions ADC4_IN5/ADC2_IN15, COMP6_INM, OPAMP5_VINM.
38 PC6 bidirectional FT_f GPIO with alternate functions TIM3_CH1, HRTIM1_EEV10, TIM8_CH1, I2S2_MCK, COMP6_OUT, I2C4_SCL, HRTIM1_CHF1, EVENTOUT.
39 PC7 bidirectional FT_f GPIO with alternate functions TIM3_CH2, HRTIM1_FLT5, TIM8_CH2, I2S3_MCK, COMP5_OUT, I2C4_SDA, HRTIM1_CHF2, EVENTOUT.
40 PC8 bidirectional FT_f GPIO with alternate functions TIM3_CH3, HRTIM1_CHE1, TIM8_CH3, TIM20_CH3, COMP7_OUT, I2C3_SCL, EVENTOUT.
41 PC9 bidirectional FT_f GPIO with alternate functions TIM3_CH4, HRTIM1_CHE2, TIM8_CH4, I2SCKIN, TIM8_BKIN2, I2C3_SDA, EVENTOUT.
42 PA8 bidirectional FT_a GPIO with alternate functions MCO, I2C3_SCL, I2C2_SDA, I2S2_MCK, TIM1_CH1, USART1_CK, COMP7_OUT, TIM4_ETR, FDCAN3_RX, SAI1_CK2, HRTIM1_CHA1, SAI1_SCK_A, EVENTOUT and additional functions ADC5_IN1, OPAMP5_VOUT.
43 PA9 bidirectional FT_fda GPIO with alternate functions I2C3_SMBA, I2C2_SCL, I2S3_MCK, TIM1_CH2, USART1_TX, COMP5_OUT, TIM15_BKIN, TIM2_CH3, HRTIM1_CHA2, SAI1_FS_A, EVENTOUT and additional functions ADC5_IN2, UCPD1_DBCC1.
44 PA10 bidirectional FT_fda GPIO with alternate functions TIM17_BKIN, USB_CRS_SYNC, I2C2_SMBA, SPI2_MISO, TIM1_CH3, USART1_RX, COMP6_OUT, TIM2_CH4, TIM8_BKIN, SAI1_D1, HRTIM1_CHB1, SAI1_SD_A, EVENTOUT and additional function UCPD1_DBCC2.
45 PA11 bidirectional FT_u GPIO with alternate functions SPI2_MOSI/I2S2_SD, TIM1_CH1N, USART1_CTS, COMP1_OUT, FDCAN1_RX, TIM4_CH1, TIM1_CH4, TIM1_BKIN2, HRTIM1_CHB2, EVENTOUT and additional function USB_DM.
46 PA12 bidirectional FT_u GPIO with alternate functions TIM16_CH1, I2SCKIN, TIM1_CH2N, USART1_RTS_DE, COMP2_OUT, FDCAN1_TX, TIM4_CH2, TIM1_ETR, HRTIM1_FLT1, EVENTOUT and additional function USB_DP.
47 VSS power_in Digital ground pin.
48 VDD power_in Digital supply voltage pin, operating range 1.71 V to 3.6 V.
49 PA13 bidirectional FT_f GPIO, default SWDIO-JTMS debug function with internal pull-up activated after reset, alternate functions TIM16_CH1N, I2C4_SCL, I2C1_SCL, IR_OUT, USART3_CTS, TIM4_CH3, SAI1_SD_B, EVENTOUT.
50 PA14 bidirectional FT_f GPIO, default SWCLK-JTCK debug function with internal pull-down activated after reset, alternate functions LPTIM1_OUT, I2C4_SMBA, I2C1_SDA, TIM8_CH2, TIM1_BKIN, USART2_TX, SAI1_FS_B, EVENTOUT.
51 PA15 bidirectional FT_f GPIO, default JTDI debug function with internal pull-up activated after reset, alternate functions TIM2_CH1, TIM8_CH1, I2C1_SCL, SPI1_NSS, SPI3_NSS/I2S3_WS, USART2_RX, UART4_RTS_DE, TIM1_BKIN, FDCAN3_TX, HRTIM1_FLT2, TIM2_ETR, EVENTOUT.
52 PC10 bidirectional FT GPIO with alternate functions TIM8_CH1N, UART4_TX, SPI3_SCK/I2S3_CK, USART3_TX, HRTIM1_FLT6, EVENTOUT.
53 PC11 bidirectional FT_f GPIO with alternate functions HRTIM1_EEV2, TIM8_CH2N, UART4_RX, SPI3_MISO, USART3_RX, I2C3_SDA, EVENTOUT.
54 PC12 bidirectional FT GPIO with alternate functions TIM5_CH2, HRTIM1_EEV1, TIM8_CH3N, UART5_TX, SPI3_MOSI/I2S3_SD, USART3_CK, UCPD1_FRSTX, EVENTOUT.
55 PD2 bidirectional FT GPIO with alternate functions TIM3_ETR, TIM8_BKIN, UART5_RX, EVENTOUT.
56 PB3 bidirectional FT GPIO, default JTDO-TRACESWO debug function with internal pull-up activated after reset, alternate functions TIM2_CH2, TIM4_ETR, UCPD1_CRS_SYNC, TIM8_CH1N, SPI1_SCK, SPI3_SCK/I2S3_CK, USART2_TX, TIM3_ETR, FDCAN3_RX, HRTIM1_SCOUT, HRTIM1_EEV9, SAI1_SCK_B, EVENTOUT.
57 PB4 bidirectional FT_c GPIO, default JTRST debug function with internal pull-up activated after reset, alternate functions TIM16_CH1, TIM3_CH1, TIM8_CH2N, SPI1_MISO, SPI3_MISO, USART2_RX, UART5_RTS_DE, TIM17_BKIN, FDCAN3_TX, HRTIM1_EEV7, SAI1_MCLK_B, EVENTOUT and additional function UCPD1_CC2 (USB Type-C PD capable pin).
58 PB5 bidirectional FT_f GPIO with alternate functions TIM16_BKIN, TIM3_CH2, TIM8_CH3N, I2C1_SMBA, SPI1_MOSI, SPI3_MOSI/I2S3_SD, USART2_CK, I2C3_SDA, FDCAN2_RX, TIM17_CH1, LPTIM1_IN1, SAI1_SD_B, HRTIM1_EEV6, UART5_CTS, EVENTOUT.
59 PB6 bidirectional FT_c GPIO with alternate functions TIM16_CH1N, TIM4_CH1, TIM8_CH1, TIM8_ETR, USART1_TX, COMP4_OUT, FDCAN2_TX, TIM8_BKIN2, LPTIM1_ETR, HRTIM1_SCIN, HRTIM1_EEV4, SAI1_FS_B, EVENTOUT and additional function UCPD1_CC1 (USB Type-C PD capable pin).
60 PB7 bidirectional FT_f GPIO with alternate functions TIM17_CH1N, TIM4_CH2, I2C4_SDA, I2C1_SDA, TIM8_BKIN, USART1_RX, COMP3_OUT, TIM3_CH4, LPTIM1_IN2, FMC_NL, HRTIM1_EEV3, UART4_CTS, EVENTOUT and additional function PVD_IN.
61 PB8-BOOT0 bidirectional FT_f dual-function GPIO/BOOT0 pin sampled at reset to select the boot mode, alternate functions TIM16_CH1, TIM4_CH3, SAI1_CK1, I2C1_SCL, USART3_RX, COMP1_OUT, FDCAN1_RX, TIM8_CH2, TIM1_BKIN, HRTIM1_EEV8, SAI1_MCLK_A, EVENTOUT; recommended to configure in non-analog mode after startup to limit consumption if left unconnected.
62 PB9 bidirectional FT_f GPIO with alternate functions TIM17_CH1, TIM4_CH4, SAI1_D2, I2C1_SDA, IR_OUT, USART3_TX, COMP2_OUT, FDCAN1_TX, TIM8_CH3, TIM1_CH3N, HRTIM1_EEV5, SAI1_FS_A, EVENTOUT.
63 VSS power_in Digital ground pin.
64 VDD power_in Digital supply voltage pin, operating range 1.71 V to 3.6 V.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package LQFP-64(10x10)
Category Embedded Processors & Controllers
Pins 64

CAD (KiCad official)

  • Symbol: STM32G474RBT6
  • Footprint: Package_QFP:LQFP-64_10x10mm_P0.5mm
  • 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)
  • 3D model files: stm32g474rbt6-etched.step / stm32g474rbt6-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32g474rbt6.step / stm32g474rbt6.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (241 pp, sha256 fc2b93c56927c804, retrieved 2026-09-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-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).

Datasheet PDF