STM32G474RET6 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 for the RTC, LSE 32 kHz crystal, and backup registers (~1.55-3.6 V). Powered from a coin cell or dedicated backup rail; can be tied to VDD if the backup domain is not used.
2	PC13	bidirectional	Reset-state general-purpose I/O (5 V tolerant FT). Additional functions include WKUP2, RTC_TAMP1, RTC_TS, RTC_OUT1; alternate functions include TIM1_BKIN, TIM1_CH1N, TIM8_CH4N, EVENTOUT.
3	PC14-OSC32_IN	bidirectional	GPIO PC14 by default (FT, 5 V tolerant); additional function is OSC32_IN input for the 32.768 kHz LSE crystal.
4	PC15-OSC32_OUT	bidirectional	GPIO PC15 by default (FT, 5 V tolerant); additional function is OSC32_OUT output for the 32.768 kHz LSE crystal.
5	PF0-OSC_IN	bidirectional	GPIO PF0 by default (FT_fa, 5 V tolerant, Fm+ and analog switch); additional function is OSC_IN input for the main HSE 4-48 MHz crystal, also ADC1_IN10.
6	PF1-OSC_OUT	bidirectional	GPIO PF1 by default (FT_a, 5 V tolerant, analog switch); additional function is OSC_OUT for the main HSE crystal, also ADC2_IN10, COMP3_INM.
7	PG10-NRST	bidirectional	Bidirectional device reset with internal weak pull-up (~40 kΩ). Drive low >20 µs to reset. Also usable as GPIO PG10 (FT) when NRST function disabled by option byte; alternate MCO/EVENTOUT.
8	PC0	bidirectional	GPIO (FT_a, 5 V tolerant, analog switch). Additional: ADC12_IN6, COMP3_INM. Alternate: LPTIM1_IN1, TIM1_CH1, LPUART1_RX, EVENTOUT.
9	PC1	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC12_IN7, COMP3_INP. Alternate: LPTIM1_OUT, TIM1_CH2, LPUART1_TX, QUADSPI1_BK2_IO0, SAI1_SD_A, EVENTOUT.
10	PC2	bidirectional	GPIO (FT_a, 5 V tolerant, analog switch). Additional: ADC12_IN8. Alternate: LPTIM1_IN2, TIM1_CH3, COMP3_OUT, TIM20_CH2, QUADSPI1_BK2_IO1, EVENTOUT.
11	PC3	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC12_IN9, OPAMP5_VINP. Alternate: LPTIM1_ETR, TIM1_CH4, SAI1_D1, TIM1_BKIN2, QUADSPI1_BK2_IO2, SAI1_SD_A, EVENTOUT.
12	PA0	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC12_IN1, COMP1_INM, COMP3_INP, RTC_TAMP2, WKUP1. Alternate: TIM2_CH1, TIM5_CH1, USART2_CTS, COMP1_OUT, TIM8_BKIN, TIM8_ETR, TIM2_ETR, EVENTOUT.
13	PA1	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC12_IN2, COMP1_INP, OPAMP1_VINP, OPAMP3_VINP, OPAMP6_VINM. Alternate: RTC_REFIN, TIM2_CH2, TIM5_CH2, USART2_RTS_DE, TIM15_CH1N, EVENTOUT.
14	PA2	bidirectional	GPIO (FT_a, 5 V tolerant, analog switch). Additional: ADC1_IN3, COMP2_INM, OPAMP1_VOUT, WKUP4/LSCO. Alternate: TIM2_CH3, TIM5_CH3, USART2_TX, COMP2_OUT, TIM15_CH1, QUADSPI1_BK1_NCS, LPUART1_TX, UCPD1_FRSTX, EVENTOUT.
15	VSS	power_in	Digital ground reference (0 V). Bond to solid ground plane.
16	VDD	power_in	Digital supply, 1.71-3.6 V. Decouple locally with a 100 nF capacitor.
17	PA3	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC1_IN4, COMP2_INP, OPAMP1_VINM/OPAMP1_VINP, OPAMP5_VINM. Alternate: TIM2_CH4, TIM5_CH4, SAI1_CK1, USART2_RX, TIM15_CH2, QUADSPI1_CLK, LPUART1_RX, SAI1_MCLK_A, EVENTOUT.
18	PA4	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC2_IN17, DAC1_OUT1, COMP1_INM. Alternate: TIM3_CH2, SPI1_NSS, SPI3_NSS/I2S3_WS, USART2_CK, SAI1_FS_B, EVENTOUT.
19	PA5	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC2_IN13, DAC1_OUT2, COMP2_INM, OPAMP2_VINM. Alternate: TIM2_CH1, TIM2_ETR, SPI1_SCK, UCPD1_FRSTX, EVENTOUT.
20	PA6	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC2_IN3, DAC2_OUT1, OPAMP2_VOUT. Alternate: TIM16_CH1, TIM3_CH1, TIM8_BKIN, SPI1_MISO, TIM1_BKIN, COMP1_OUT, QUADSPI1_BK1_IO3, LPUART1_CTS, EVENTOUT.
21	PA7	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC2_IN4, COMP2_INP, OPAMP1_VINP, OPAMP2_VINP. Alternate: TIM17_CH1, TIM3_CH2, TIM8_CH1N, SPI1_MOSI, TIM1_CH1N, COMP2_OUT, QUADSPI1_BK1_IO2, UCPD1_FRSTX, EVENTOUT.
22	PC4	bidirectional	GPIO (FT_fa, 5 V tolerant, Fm+ and analog switch). Additional: ADC2_IN5. Alternate: TIM1_ETR, I2C2_SCL, USART1_TX, QUADSPI1_BK2_IO3, EVENTOUT.
23	PC5	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC2_IN11, OPAMP1_VINM, OPAMP2_VINM, WKUP5. Alternate: TIM15_BKIN, SAI1_D3, TIM1_CH4N, USART1_RX, HRTIM1_EEV10, EVENTOUT.
24	PB0	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC3_IN12/ADC1_IN15, COMP4_INP, OPAMP2_VINP, OPAMP3_VINP. Alternate: TIM3_CH3, TIM8_CH2N, TIM1_CH2N, QUADSPI1_BK1_IO1, HRTIM1_FLT5, UCPD1_FRSTX, EVENTOUT.
25	PB1	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC3_IN1/ADC1_IN12, COMP1_INP, OPAMP3_VOUT, OPAMP6_VINM. Alternate: TIM3_CH4, TIM8_CH3N, TIM1_CH3N, COMP4_OUT, QUADSPI1_BK1_IO0, LPUART1_RTS_DE, HRTIM1_SCOUT, EVENTOUT.
26	PB2	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC2_IN12, COMP4_INM, OPAMP3_VINM. Alternate: RTC_OUT2, LPTIM1_OUT, TIM5_CH1, TIM20_CH1, I2C3_SMBA, QUADSPI1_BK2_IO1, HRTIM1_SCIN, EVENTOUT.
27	VSSA	power_in	Analog ground reference for ADCs, DACs, comparators, op-amps and VREFBUF. Tie to VSS with a clean star topology.
28	VREF+	power_in	External positive reference voltage for the ADCs and DACs (or VREFBUF output when the internal buffer is enabled). Range typically 2.0 V to VDDA. Additional function: VREFBUF_OUT.
29	VDDA	power_in	Analog supply for ADCs, DACs, comparators, op-amps, VREFBUF and reset block, 1.62-3.6 V. Must be ≥ VDD and separately decoupled.
30	PB10	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: COMP5_INM, OPAMP3_VINM, OPAMP4_VINM. Alternate: TIM2_CH3, USART3_TX, LPUART1_RX, QUADSPI1_CLK, TIM1_BKIN, HRTIM1_FLT3, SAI1_SCK_A, EVENTOUT.
31	VSS	power_in	Digital ground reference (0 V).
32	VDD	power_in	Digital supply, 1.71-3.6 V. Local 100 nF decoupling required.
33	PB11	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC12_IN14, COMP6_INP, OPAMP4_VINP, OPAMP6_VOUT. Alternate: TIM2_CH4, USART3_RX, LPUART1_TX, QUADSPI1_BK1_NCS, HRTIM1_FLT4, EVENTOUT.
34	PB12	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC4_IN3/ADC1_IN11, COMP7_INM, OPAMP4_VOUT, OPAMP6_VINP. Alternate: TIM5_ETR, I2C2_SMBA, SPI2_NSS/I2S2_WS, TIM1_BKIN, USART3_CK, LPUART1_RTS_DE, FDCAN2_RX, HRTIM1_CHC1, EVENTOUT.
35	PB13	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC3_IN5, COMP5_INP, OPAMP3_VINP, OPAMP4_VINP, OPAMP6_VINP. Alternate: SPI2_SCK/I2S2_CK, TIM1_CH1N, USART3_CTS, LPUART1_CTS, FDCAN2_TX, HRTIM1_CHC2, EVENTOUT.
36	PB14	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC4_IN4/ADC1_IN5, COMP7_INP, OPAMP2_VINP, OPAMP5_VINP. Alternate: TIM15_CH1, SPI2_MISO, TIM1_CH2N, USART3_RTS_DE, COMP4_OUT, HRTIM1_CHD1, EVENTOUT.
37	PB15	bidirectional	GPIO (TT_a, 3.6 V tolerant, analog switch). Additional: ADC4_IN5/ADC2_IN15, COMP6_INM, OPAMP5_VINM. Alternate: RTC_REFIN, TIM15_CH2, TIM15_CH1N, COMP3_OUT, TIM1_CH3N, SPI2_MOSI/I2S2_SD, HRTIM1_CHD2, EVENTOUT.
38	PC6	bidirectional	GPIO (FT_f, 5 V tolerant, Fm+). Alternate: TIM3_CH1, HRTIM1_EEV10, TIM8_CH1, I2S2_MCK, COMP6_OUT, I2C4_SCL, HRTIM1_CHF1, EVENTOUT.
39	PC7	bidirectional	GPIO (FT_f, 5 V tolerant, Fm+). Alternate: TIM3_CH2, HRTIM1_FLT5, TIM8_CH2, I2S3_MCK, COMP5_OUT, I2C4_SDA, HRTIM1_CHF2, EVENTOUT.
40	PC8	bidirectional	GPIO (FT_f, 5 V tolerant, Fm+). Alternate: TIM3_CH3, HRTIM1_CHE1, TIM8_CH3, TIM20_CH3, COMP7_OUT, I2C3_SCL, EVENTOUT.
41	PC9	bidirectional	GPIO (FT_f, 5 V tolerant, Fm+). Alternate: TIM3_CH4, HRTIM1_CHE2, TIM8_CH4, I2SCKIN, TIM8_BKIN2, I2C3_SDA, EVENTOUT.
42	PA8	bidirectional	GPIO (FT_a, 5 V tolerant, analog switch). Additional: ADC5_IN1, OPAMP5_VOUT. Alternate: 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.
43	PA9	bidirectional	GPIO (FT_fda, 5 V tolerant, Fm+, USB-C dead-battery, analog switch). Additional: ADC5_IN2, UCPD1_DBCC1. Alternate: I2C3_SMBA, I2C2_SCL, I2S3_MCK, TIM1_CH2, USART1_TX, COMP5_OUT, TIM15_BKIN, TIM2_CH3, HRTIM1_CHA2, SAI1_FS_A, EVENTOUT.
44	PA10	bidirectional	GPIO (FT_fda, 5 V tolerant, Fm+, USB-C dead-battery, analog switch). Additional: UCPD1_DBCC2. Alternate: 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.
45	PA11	bidirectional	GPIO with USB function (FT_u, 5 V tolerant). Additional: USB_DM (D-). Alternate: SPI2_MOSI/I2S2_SD, TIM1_CH1N, USART1_CTS, COMP1_OUT, FDCAN1_RX, TIM4_CH1, TIM1_CH4, TIM1_BKIN2, HRTIM1_CHB2, EVENTOUT.
46	PA12	bidirectional	GPIO with USB function (FT_u, 5 V tolerant). Additional: USB_DP (D+). Alternate: TIM16_CH1, I2SCKIN, TIM1_CH2N, USART1_RTS_DE, COMP2_OUT, FDCAN1_TX, TIM4_CH2, TIM1_ETR, HRTIM1_FLT1, EVENTOUT.
47	VSS	power_in	Digital ground reference (0 V).
48	VDD	power_in	Digital supply, 1.71-3.6 V. Local 100 nF decoupling required.
49	PA13	bidirectional	SWDIO / JTMS in reset state (FT_f, 5 V tolerant, Fm+). Alternate: SWDIO-JTMS, TIM16_CH1N, I2C4_SCL, I2C1_SCL, IR_OUT, USART3_CTS, TIM4_CH3, SAI1_SD_B, EVENTOUT.
50	PA14	bidirectional	SWCLK / JTCK in reset state (FT_f, 5 V tolerant, Fm+). Alternate: SWCLK-JTCK, LPTIM1_OUT, I2C4_SMBA, I2C1_SDA, TIM8_CH2, TIM1_BKIN, USART2_TX, SAI1_FS_B, EVENTOUT.
51	PA15	bidirectional	JTDI in reset state (FT_f, 5 V tolerant, Fm+). Alternate: JTDI, 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	GPIO (FT, 5 V tolerant). Alternate: TIM8_CH1N, UART4_TX, SPI3_SCK/I2S3_CK, USART3_TX, HRTIM1_FLT6, EVENTOUT.
53	PC11	bidirectional	GPIO (FT_f, 5 V tolerant, Fm+). Alternate: HRTIM1_EEV2, TIM8_CH2N, UART4_RX, SPI3_MISO, USART3_RX, I2C3_SDA, EVENTOUT.
54	PC12	bidirectional	GPIO (FT, 5 V tolerant). Alternate: TIM5_CH2, HRTIM1_EEV1, TIM8_CH3N, UART5_TX, SPI3_MOSI/I2S3_SD, USART3_CK, UCPD1_FRSTX, EVENTOUT.
55	PD2	bidirectional	GPIO (FT, 5 V tolerant). Alternate: TIM3_ETR, TIM8_BKIN, UART5_RX, EVENTOUT.
56	PB3	bidirectional	JTDO / TRACESWO in reset state (FT, 5 V tolerant). Alternate: JTDO-TRACESWO, 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	JTRST in reset state (FT_c, 5 V tolerant, USB Type-C PD capable). Additional: UCPD1_CC2. Alternate: JTRST, 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.
58	PB5	bidirectional	GPIO (FT_f, 5 V tolerant, Fm+). Alternate: 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	GPIO (FT_c, 5 V tolerant, USB Type-C PD capable). Additional: UCPD1_CC1. Alternate: 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.
60	PB7	bidirectional	GPIO (FT_f, 5 V tolerant, Fm+). Additional: PVD_IN. Alternate: 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.
61	PB8-BOOT0	bidirectional	Multiplexed BOOT0 pin and GPIO PB8 (FT_f, 5 V tolerant, Fm+). At reset the pin selects the boot memory (main Flash / system memory / SRAM) depending on BOOT_SEL and nBOOT1 option bytes; afterwards operates as GPIO PB8. Alternate: TIM16_CH1, TIM4_CH3, SAI1_CK1, I2C1_SCL, USART3_RX, COMP1_OUT, FDCAN1_RX, TIM8_CH2, TIM1_BKIN, HRTIM1_EEV8, SAI1_MCLK_A, EVENTOUT.
62	PB9	bidirectional	GPIO (FT_f, 5 V tolerant, Fm+). Alternate: 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	VDD	power_in	Digital supply, 1.71-3.6 V. Local 100 nF decoupling required.
64	VSS	power_in	Digital ground reference (0 V).

Key specifications

Parameter	Value
Manufacturer	STMicroelectronics
Package	LQFP-64(10x10)
Category	MCU
Pins	64

Ordering variants

Same part, different packaging or reel option.

STM32G474RET6CxU
STM32G474RET6CxT
STM32G474RET6RBT6
STM32G474RET6RCT6
STM32G474RET6
STM32G474RET6MBT6
STM32G474RET6MCT6
STM32G474RET6MET6
STM32G474RET6VBT6
STM32G474RET6VCT6
STM32G474RET6VET6
STM32G474RET6QBT6
STM32G474RET6QCT6
STM32G474RET6QET6
STM32G474RET6AxY
STM32G474RET6VxH
STM32G474RET6QxJ

CAD (KiCad official)

Symbol: STM32G474RET6
Footprint: Package_QFP:LQFP-64_10x10mm_P0.5mm
3D model: LQFP-64(10x10) (KiCad packages3D, STEP)

Provenance

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

Datasheet: STMicroelectronics datasheet (236 pp, sha256 d493fe0ab22e61ff, retrieved 2026-08-17, tier: manufacturer)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF