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Contents

README

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STM32L471VGT3

STMicroelectronics · Microcontrollers (MCU/MPU/SOC) · LQFP-100(14x14)

STM32L471VGT3 from STMicroelectronics, in a LQFP-100(14x14). 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 PE2 bidirectional I/O, 5 V tolerant (FT); alternate functions include TRACECK, TIM3_ETR, TSC_G7_IO1, FMC_A23 and SAI1_MCLK_A.
2 PE3 bidirectional I/O, 5 V tolerant (FT); alternate functions include TRACED0, TIM3_CH1, TSC_G7_IO2, FMC_A19 and SAI1_SD_B.
3 PE4 bidirectional I/O, 5 V tolerant (FT); alternate functions include TRACED1, TIM3_CH2, DFSDM1_DATIN3, FMC_A20 and SAI1_FS_A.
4 PE5 bidirectional I/O, 5 V tolerant (FT); alternate functions include TRACED2, TIM3_CH3, DFSDM1_CKIN3, FMC_A21 and SAI1_SCK_A.
5 PE6 bidirectional I/O, 5 V tolerant (FT); alternate functions include TRACED3, TIM3_CH4, FMC_A22 and SAI1_SD_A; additional function RTC_TAMP3/WKUP3.
6 VBAT power_in Backup domain supply for RTC and backup registers, 1.55 V to 3.6 V.
7 PC13 bidirectional I/O, 5 V tolerant (FT), supplied through the power switch which sinks at most 3 mA, so output use is limited to 2 MHz with 30 pF and it must not drive LEDs as a current source; additional functions RTC_TAMP1/RTC_TS/RTC_OUT/WKUP2.
8 PC14-OSC32_IN bidirectional I/O, 5 V tolerant (FT), power-switch supplied with the same 3 mA and 2 MHz / 30 pF output limits as PC13; also the LSE oscillator input OSC32_IN.
9 PC15-OSC32_OUT bidirectional I/O, 5 V tolerant (FT), power-switch supplied with the same 3 mA and 2 MHz / 30 pF output limits as PC13; also the LSE oscillator output OSC32_OUT.
10 VSS power_in Ground pin for the digital supply domain.
11 VDD power_in Standard digital supply, 1.71 V to 3.6 V.
12 PH0-OSC_IN bidirectional I/O, 5 V tolerant (FT); also the HSE oscillator input OSC_IN.
13 PH1-OSC_OUT bidirectional I/O, 5 V tolerant (FT); also the HSE oscillator output OSC_OUT.
14 NRST bidirectional Bidirectional active-low reset pin with embedded weak pull-up resistor.
15 PC0 bidirectional I/O, 5 V tolerant with Fm+ capability and analog switch supplied by VDDA (FT_fa); alternate functions include LPTIM1_IN1, I2C3_SCL, LPUART1_RX and ADC123_IN1.
16 PC1 bidirectional I/O, 5 V tolerant with Fm+ capability and analog switch supplied by VDDA (FT_fa); alternate functions include LPTIM1_OUT, I2C3_SDA, LPUART1_TX and ADC123_IN2.
17 PC2 bidirectional I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include LPTIM1_IN2, SPI2_MISO, DFSDM1_CKOUT and ADC123_IN3.
18 PC3 bidirectional I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include LPTIM1_ETR, SPI2_MOSI, SAI1_SD_A, LPTIM2_ETR and ADC123_IN4.
19 VSSA power_in Ground pin for the analog supply domain (ADC, DAC, OPAMP, COMP, VREF).
20 VREF- power_in Negative reference voltage for the ADC, tied to VSSA.
21 VREF+ power_in Positive ADC reference voltage input; datasheet requires VDDA ≥ 2 V when VREF+ is at its maximum, otherwise VREF+ may be at most VDDA; also available as VREFBUF_OUT.
22 VDDA power_in Analog supply, 1.62 V to 3.6 V for ADC or COMP and 1.8 V minimum for DAC or OPAMP; must be decoupled to VSSA.
23 PA0 bidirectional I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include TIM2_CH1, TIM8_ETR, USART2_CTS and UART4_TX, additional functions OPAMP1_VINP, ADC12_IN5 and RTC_TAMP2/WKUP1.
24 PA1 bidirectional I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include TIM2_CH2, USART2_RTS_DE and UART4_RX, additional functions OPAMP1_VINM and ADC12_IN6.
25 PA2 bidirectional I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include TIM2_CH3, USART2_TX and SAI2_EXTCLK, additional functions ADC12_IN7 and WKUP4/LSCO.
26 PA3 bidirectional I/O, 3.6 V tolerant (TT_a) with analog switch supplied by VDDA; alternate functions include TIM2_CH4, TIM5_CH4, USART2_RX and TIM15_CH2, additional functions OPAMP1_VOUT and ADC12_IN8.
27 VSS power_in Ground pin for the digital supply domain.
28 VDD power_in Standard digital supply, 1.71 V to 3.6 V.
29 PA4 bidirectional I/O, 3.6 V tolerant (TT_a) with analog switch supplied by VDDA; alternate functions include SPI1_NSS, SPI3_NSS, USART2_CK and LPTIM2_OUT, additional functions ADC12_IN9 and DAC1_OUT1.
30 PA5 bidirectional I/O, 3.6 V tolerant (TT_a) with analog switch supplied by VDDA; alternate functions include TIM2_CH1, TIM2_ETR, TIM8_CH1N, SPI1_SCK and LPTIM2_ETR, additional functions ADC12_IN10 and DAC1_OUT2.
31 PA6 bidirectional I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include TIM1_BKIN, TIM3_CH1, SPI1_MISO, USART3_CTS and QUADSPI_BK1_IO3, additional functions OPAMP2_VINP and ADC12_IN11.
32 PA7 bidirectional I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include TIM1_CH1N, TIM3_CH2, SPI1_MOSI, QUADSPI_BK1_IO2 and TIM17_CH1, additional functions OPAMP2_VINM and ADC12_IN12.
33 PC4 bidirectional I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate function USART3_TX, additional functions COMP1_INM and ADC12_IN13.
34 PC5 bidirectional I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate function USART3_RX, additional functions COMP1_INP, ADC12_IN14 and WKUP5.
35 PB0 bidirectional I/O, 3.6 V tolerant (TT_a) with analog switch supplied by VDDA; alternate functions include TIM1_CH2N, TIM3_CH3, USART3_CK, QUADSPI_BK1_IO1 and COMP1_OUT, additional functions OPAMP2_VOUT and ADC12_IN15.
36 PB1 bidirectional I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include TIM1_CH3N, TIM3_CH4, DFSDM1_DATIN0, USART3_RTS_DE and LPTIM2_IN1, additional functions COMP1_INM and ADC12_IN16.
37 PB2 bidirectional I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include RTC_OUT, LPTIM1_OUT, I2C3_SMBA and DFSDM1_CKIN0, additional function COMP1_INP.
38 PE7 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM1_ETR, DFSDM1_DATIN2, FMC_D4 and SAI1_SD_B.
39 PE8 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM1_CH1N, DFSDM1_CKIN2, FMC_D5 and SAI1_SCK_B.
40 PE9 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM1_CH1, DFSDM1_CKOUT, FMC_D6 and SAI1_FS_B.
41 PE10 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM1_CH2N, DFSDM1_DATIN4, TSC_G5_IO1, QUADSPI_CLK, FMC_D7 and SAI1_MCLK_B.
42 PE11 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM1_CH2, DFSDM1_CKIN4, TSC_G5_IO2, QUADSPI_NCS and FMC_D8.
43 PE12 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM1_CH3N, SPI1_NSS, DFSDM1_DATIN5, TSC_G5_IO3, QUADSPI_BK1_IO0 and FMC_D9.
44 PE13 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM1_CH3, SPI1_SCK, DFSDM1_CKIN5, TSC_G5_IO4, QUADSPI_BK1_IO1 and FMC_D10.
45 PE14 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM1_CH4, TIM1_BKIN2, SPI1_MISO, QUADSPI_BK1_IO2 and FMC_D11.
46 PE15 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM1_BKIN, SPI1_MOSI, QUADSPI_BK1_IO3 and FMC_D12.
47 PB10 bidirectional I/O, 5 V tolerant with Fm+ capability (FT_f); alternate functions include TIM2_CH3, I2C2_SCL, SPI2_SCK, USART3_TX, LPUART1_RX and QUADSPI_CLK.
48 PB11 bidirectional I/O, 5 V tolerant with Fm+ capability (FT_f); alternate functions include TIM2_CH4, I2C2_SDA, USART3_RX, LPUART1_TX and QUADSPI_NCS.
49 VSS power_in Ground pin for the digital supply domain.
50 VDD power_in Standard digital supply, 1.71 V to 3.6 V.
51 PB12 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM1_BKIN, I2C2_SMBA, SPI2_NSS, USART3_CK, LPUART1_RTS_DE and SWPMI1_IO.
52 PB13 bidirectional I/O, 5 V tolerant with Fm+ capability (FT_f); alternate functions include TIM1_CH1N, I2C2_SCL, SPI2_SCK, USART3_CTS, LPUART1_CTS and SWPMI1_TX.
53 PB14 bidirectional I/O, 5 V tolerant with Fm+ capability (FT_f); alternate functions include TIM1_CH2N, I2C2_SDA, SPI2_MISO, USART3_RTS_DE and SWPMI1_RX.
54 PB15 bidirectional I/O, 5 V tolerant (FT); alternate functions include RTC_REFIN, TIM1_CH3N, SPI2_MOSI, TSC_G1_IO4 and SWPMI1_SUSPEND.
55 PD8 bidirectional I/O, 5 V tolerant (FT); alternate functions include USART3_TX and FMC_D13.
56 PD9 bidirectional I/O, 5 V tolerant (FT); alternate functions include USART3_RX, FMC_D14 and SAI2_MCLK_A.
57 PD10 bidirectional I/O, 5 V tolerant (FT); alternate functions include USART3_CK, TSC_G6_IO1, FMC_D15 and SAI2_SCK_A.
58 PD11 bidirectional I/O, 5 V tolerant (FT); alternate functions include USART3_CTS, TSC_G6_IO2, FMC_A16, SAI2_SD_A and LPTIM2_ETR.
59 PD12 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM4_CH1, USART3_RTS_DE, TSC_G6_IO3, FMC_A17 and LPTIM2_IN1.
60 PD13 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM4_CH2, TSC_G6_IO4, FMC_A18 and LPTIM2_OUT.
61 PD14 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM4_CH3, FMC_D0 and EVENTOUT.
62 PD15 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM4_CH4, FMC_D1 and EVENTOUT.
63 PC6 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM3_CH1, TIM8_CH1, DFSDM1_CKIN3, TSC_G4_IO1, SDMMC1_D6 and SAI2_MCLK_A.
64 PC7 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM3_CH2, TIM8_CH2, DFSDM1_DATIN3, TSC_G4_IO2, SDMMC1_D7 and SAI2_MCLK_B.
65 PC8 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM3_CH3, TIM8_CH3, TSC_G4_IO3 and SDMMC1_D0.
66 PC9 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM8_BKIN2, TIM3_CH4, TIM8_CH4, TSC_G4_IO4, SDMMC1_D1 and SAI2_EXTCLK.
67 PA8 bidirectional I/O, 5 V tolerant (FT); alternate functions include MCO, TIM1_CH1, USART1_CK and LPTIM2_OUT.
68 PA9 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM1_CH2, USART1_TX and TIM15_BKIN.
69 PA10 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM1_CH3, USART1_RX and TIM17_BKIN.
70 PA11 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM1_CH4, TIM1_BKIN2, USART1_CTS and CAN1_RX.
71 PA12 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM1_ETR, USART1_RTS_DE and CAN1_TX.
72 PA13 bidirectional I/O, 5 V tolerant (FT); JTMS-SWDIO debug function after reset with internal pull-up enabled, also IR_OUT.
73 VDD power_in Standard digital supply, 1.71 V to 3.6 V.
74 VSS power_in Ground pin for the digital supply domain.
75 VDD power_in Standard digital supply, 1.71 V to 3.6 V.
76 PA14 bidirectional I/O, 5 V tolerant (FT); JTCK-SWCLK debug function after reset with internal pull-down enabled.
77 PA15 bidirectional I/O, 5 V tolerant (FT); JTDI debug function after reset with internal pull-up enabled; also TIM2_CH1, TIM2_ETR, SPI1_NSS, SPI3_NSS and UART4_RTS_DE.
78 PC10 bidirectional I/O, 5 V tolerant (FT); alternate functions include SPI3_SCK, USART3_TX, UART4_TX, TSC_G3_IO2 and SDMMC1_D2.
79 PC11 bidirectional I/O, 5 V tolerant (FT); alternate functions include SPI3_MISO, USART3_RX, UART4_RX, TSC_G3_IO3 and SDMMC1_D3.
80 PC12 bidirectional I/O, 5 V tolerant (FT); alternate functions include SPI3_MOSI, USART3_CK, UART5_TX, TSC_G3_IO4 and SDMMC1_CK.
81 PD0 bidirectional I/O, 5 V tolerant (FT); alternate functions include SPI2_NSS, DFSDM1_DATIN7, CAN1_RX and FMC_D2.
82 PD1 bidirectional I/O, 5 V tolerant (FT); alternate functions include SPI2_SCK, DFSDM1_CKIN7, CAN1_TX and FMC_D3.
83 PD2 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM3_ETR, USART3_RTS_DE, UART5_RX, TSC_SYNC and SDMMC1_CMD.
84 PD3 bidirectional I/O, 5 V tolerant (FT); alternate functions include SPI2_MISO, DFSDM1_DATIN0, USART2_CTS and FMC_CLK.
85 PD4 bidirectional I/O, 5 V tolerant (FT); alternate functions include SPI2_MOSI, DFSDM1_CKIN0, USART2_RTS_DE and FMC_NOE.
86 PD5 bidirectional I/O, 5 V tolerant (FT); alternate functions include USART2_TX and FMC_NWE.
87 PD6 bidirectional I/O, 5 V tolerant (FT); alternate functions include DFSDM1_DATIN1, USART2_RX, FMC_NWAIT and SAI1_SD_A.
88 PD7 bidirectional I/O, 5 V tolerant (FT); alternate functions include DFSDM1_CKIN1, USART2_CK and FMC_NE1.
89 PB3 bidirectional I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); JTDO-TRACESWO debug function after reset, also TIM2_CH2, SPI1_SCK, SPI3_SCK and COMP2_INM.
90 PB4 bidirectional I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); NJTRST debug function after reset with internal pull-up enabled, also TIM3_CH1, SPI1_MISO, SPI3_MISO and COMP2_INP.
91 PB5 bidirectional I/O, 5 V tolerant with analog switch supplied by VDDA (FT_a); alternate functions include LPTIM1_IN1, TIM3_CH2, I2C1_SMBA, SPI1_MOSI and COMP2_OUT.
92 PB6 bidirectional I/O, 5 V tolerant with Fm+ capability and analog switch supplied by VDDA (FT_fa); alternate functions include LPTIM1_ETR, TIM4_CH1, I2C1_SCL, USART1_TX and additional COMP2_INP.
93 PB7 bidirectional I/O, 5 V tolerant with Fm+ capability and analog switch supplied by VDDA (FT_fa); alternate functions include LPTIM1_IN2, TIM4_CH2, I2C1_SDA, USART1_RX and FMC_NL; additional functions COMP2_INM and PVD_IN.
94 BOOT0 input Dedicated BOOT0 pin; input voltage range is VSS to 9.0 V.
95 PB8 bidirectional I/O, 5 V tolerant with Fm+ capability (FT_f); alternate functions include TIM4_CH3, I2C1_SCL, DFSDM1_DATIN6, CAN1_RX, SDMMC1_D4 and TIM16_CH1.
96 PB9 bidirectional I/O, 5 V tolerant with Fm+ capability (FT_f); alternate functions include IR_OUT, TIM4_CH4, I2C1_SDA, SPI2_NSS, CAN1_TX and SDMMC1_D5.
97 PE0 bidirectional I/O, 5 V tolerant (FT); alternate functions include TIM4_ETR, FMC_NBL0 and TIM16_CH1.
98 PE1 bidirectional I/O, 5 V tolerant (FT); alternate functions include FMC_NBL1 and TIM17_CH1.
99 VSS power_in Ground pin for the digital supply domain.
100 VDD power_in Standard digital supply, 1.71 V to 3.6 V.

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package LQFP-100(14x14)
Category Embedded Processors & Controllers
Pins 100

CAD (KiCad official)

  • Symbol: STM32L471VGT3
  • Footprint: Package_QFP:LQFP-100_14x14mm_P0.5mm
  • 3D model: LQFP-100(14x14) (KiCad packages3D, STEP)
  • 3D model files: stm32l471vgt3-etched.step / stm32l471vgt3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stm32l471vgt3.step / stm32l471vgt3.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (229 pp, sha256 2a91fd04e0793619, retrieved 2026-10-07, 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