component
STM32G491RET6
Public Made by Adomby adom
STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.
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README.mdadded+100@@ -0,0 +1,100 @@+# STM32G491RET6++**STMicroelectronics** · Microcontrollers (MCU/MPU/SOC) · LQFP-64(10x10)++STM32G491RET6 from STMicroelectronics, in a LQFP-64(10x10). 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 | VBAT | power_in | Backup supply for RTC and backup registers, operating range 1.55 V to 3.6 V. |+| 2 | PC13 | bidirectional | FT I/O supplied through the power switch (3 mA max sink), so output speed is limited to 2 MHz with 30 pF max load; additional functions WKUP2, RTC_TAMP1, RTC_TS, RTC_OUT1. |+| 3 | PC14-OSC32_IN | bidirectional | FT I/O supplied through the power switch with limited output (2 MHz, 30 pF max); additional function OSC32_IN for the 32.768 kHz LSE crystal. |+| 4 | PC15-OSC32_OUT | bidirectional | FT I/O supplied through the power switch with limited output (2 MHz, 30 pF max); additional function OSC32_OUT for the 32.768 kHz LSE crystal. |+| 5 | PF0-OSC_IN | bidirectional | FT_fa I/O with I2C2_SDA, SPI2_NSS/I2S2_WS and TIM1_CH3N alternate functions; additional functions ADC1_IN10 and OSC_IN (HSE crystal input). |+| 6 | PF1-OSC_OUT | bidirectional | FT_a I/O with SPI2_SCK/I2S2_CK alternate function; additional functions ADC2_IN10, COMP3_INM and OSC_OUT (HSE crystal output). |+| 7 | PG10-NRST | bidirectional | Bidirectional reset pin with embedded weak pull-up resistor (NRST); also usable as PG10 with MCO alternate function. |+| 8 | PC0 | bidirectional | FT_a I/O with LPTIM1_IN1, TIM1_CH1 and LPUART1_RX alternate functions; additional functions ADC12_IN6 and COMP3_INM. |+| 9 | PC1 | bidirectional | TT_a I/O with LPTIM1_OUT, TIM1_CH2, LPUART1_TX, QUADSPI1_BK2_IO0 and SAI1_SD_A alternate functions; additional functions ADC12_IN7 and COMP3_INP. |+| 10 | PC2 | bidirectional | FT_a I/O with LPTIM1_IN2, TIM1_CH3, COMP3_OUT, TIM20_CH2 and QUADSPI1_BK2_IO1 alternate functions; additional function ADC12_IN8. |+| 11 | PC3 | bidirectional | FT_a I/O with LPTIM1_ETR, TIM1_CH4, SAI1_D1, TIM1_BKIN2, QUADSPI1_BK2_IO2 and SAI1_SD_A alternate functions; additional function ADC12_IN9. |+| 12 | PA0 | bidirectional | TT_a I/O with TIM2_CH1, USART2_CTS, COMP1_OUT, TIM8_BKIN and TIM8_ETR alternate functions; additional functions ADC12_IN1, COMP1_INM, COMP3_INP, RTC_TAMP2 and WKUP1. |+| 13 | PA1 | bidirectional | TT_a I/O with RTC_REFIN, TIM2_CH2, USART2_RTS_DE and TIM15_CH1N alternate functions; additional functions ADC12_IN2, COMP1_INP and OPAMP1_VINP/OPAMP3_VINP/OPAMP6_VINM. |+| 14 | PA2 | bidirectional | TT_a I/O with TIM2_CH3, USART2_TX, COMP2_OUT, TIM15_CH1, QUADSPI1_BK1_NCS, LPUART1_TX and UCPD1_FRSTX alternate functions; additional functions ADC1_IN3, COMP2_INM, OPAMP1_VOUT and WKUP4/LSCO. |+| 15 | VSS | power_in | Digital ground supply pin; must be connected to the external ground. |+| 16 | VDD | power_in | Digital supply pin, 1.71 V to 3.6 V operating range, to be decoupled with ceramic capacitors. |+| 17 | PA3 | bidirectional | TT_a I/O with TIM2_CH4, SAI1_CK1, USART2_RX, TIM15_CH2, QUADSPI1_CLK, LPUART1_RX and SAI1_MCLK_A alternate functions; additional functions ADC1_IN4, COMP2_INP and OPAMP1_VINM/OPAMP1_VINP. |+| 18 | PA4 | bidirectional | TT_a I/O with TIM3_CH2, SPI1_NSS, SPI3_NSS/I2S3_WS, USART2_CK and SAI1_FS_B alternate functions; additional functions ADC2_IN17, DAC1_OUT1 and COMP1_INM. |+| 19 | PA5 | bidirectional | TT_a I/O with TIM2_CH1, TIM2_ETR, SPI1_SCK and UCPD1_FRSTX alternate functions; additional functions ADC2_IN13, DAC1_OUT2, COMP2_INM and OPAMP2_VINM. |+| 20 | PA6 | bidirectional | TT_a I/O with TIM16_CH1, TIM3_CH1, TIM8_BKIN, SPI1_MISO, TIM1_BKIN, COMP1_OUT, QUADSPI1_BK1_IO3 and LPUART1_CTS alternate functions; additional functions ADC2_IN3 and OPAMP2_VOUT. |+| 21 | PA7 | bidirectional | TT_a I/O with TIM17_CH1, TIM3_CH2, TIM8_CH1N, SPI1_MOSI, TIM1_CH1N, COMP2_OUT, QUADSPI1_BK1_IO2 and UCPD1_FRSTX alternate functions; additional functions ADC2_IN4, COMP2_INP, OPAMP1_VINP and OPAMP2_VINP. |+| 22 | PC4 | bidirectional | FT_fa I/O with TIM1_ETR, I2C2_SCL, USART1_TX and QUADSPI1_BK2_IO3 alternate functions; additional function ADC2_IN5. |+| 23 | PC5 | bidirectional | TT_a I/O with TIM15_BKIN, SAI1_D3, TIM1_CH4N and USART1_RX alternate functions; additional functions ADC2_IN11, OPAMP1_VINM, OPAMP2_VINM and WKUP5. |+| 24 | PB0 | bidirectional | TT_a I/O with TIM3_CH3, TIM8_CH2N, TIM1_CH2N, QUADSPI1_BK1_IO1 and UCPD1_FRSTX alternate functions; additional functions ADC1_IN15/ADC3_IN12, COMP4_INP, OPAMP2_VINP and OPAMP3_VINP. |+| 25 | PB1 | bidirectional | TT_a I/O with TIM3_CH4, TIM8_CH3N, TIM1_CH3N, COMP4_OUT, QUADSPI1_BK1_IO0 and LPUART1_RTS_DE alternate functions; additional functions ADC1_IN12/ADC3_IN1, COMP1_INP, OPAMP3_VOUT and OPAMP6_VINM. |+| 26 | PB2 | bidirectional | TT_a I/O with RTC_OUT2, LPTIM1_OUT, TIM20_CH1, I2C3_SMBA and QUADSPI1_BK2_IO1 alternate functions; additional functions ADC2_IN12, COMP4_INM and OPAMP3_VINM. |+| 27 | VSSA | power_in | Analog ground supply pin for the analog domain (ADC, DAC, OPAMP, COMP, VREFBUF). |+| 28 | VREF+ | power_in | Voltage reference pin; additional function VREFBUF_OUT (internal reference buffer output); VREF+ must not exceed VDDA by more than 0.4 V. |+| 29 | VDDA | power_in | Analog supply pin, 1.62 V to 3.6 V when ADC or COMP is used (2.0 V min with OPAMP, 2.4 V min with VREFBUF). |+| 30 | PB10 | bidirectional | TT_a I/O with TIM2_CH3, USART3_TX, LPUART1_RX, QUADSPI1_CLK, TIM1_BKIN and SAI1_SCK_A alternate functions; additional function OPAMP3_VINM. |+| 31 | VSS | power_in | Digital ground supply pin; must be connected to the external ground. |+| 32 | VDD | power_in | Digital supply pin, 1.71 V to 3.6 V operating range, to be decoupled with ceramic capacitors. |+| 33 | PB11 | bidirectional | TT_a I/O with TIM2_CH4, USART3_RX, LPUART1_TX and QUADSPI1_BK1_NCS alternate functions; additional functions ADC12_IN14 and OPAMP6_VOUT. |+| 34 | PB12 | bidirectional | TT_a I/O with I2C2_SMBA, SPI2_NSS/I2S2_WS, TIM1_BKIN, USART3_CK, LPUART1_RTS_DE and FDCAN2_RX alternate functions; additional functions ADC1_IN11 and OPAMP6_VINP. |+| 35 | PB13 | bidirectional | TT_a I/O with SPI2_SCK/I2S2_CK, TIM1_CH1N, USART3_CTS, LPUART1_CTS and FDCAN2_TX alternate functions; additional functions ADC3_IN5, OPAMP3_VINP and OPAMP6_VINP. |+| 36 | PB14 | bidirectional | TT_a I/O with TIM15_CH1, SPI2_MISO, TIM1_CH2N, USART3_RTS_DE and COMP4_OUT alternate functions; additional functions ADC1_IN5 and OPAMP2_VINP. |+| 37 | PB15 | bidirectional | FT_a I/O with RTC_REFIN, TIM15_CH2, TIM15_CH1N, COMP3_OUT, TIM1_CH3N and SPI2_MOSI/I2S2_SD alternate functions; additional function ADC2_IN15. |+| 38 | PC6 | bidirectional | FT I/O with TIM3_CH1, TIM8_CH1 and I2S2_MCK alternate functions. |+| 39 | PC7 | bidirectional | FT I/O with TIM3_CH2, TIM8_CH2 and I2S3_MCK alternate functions. |+| 40 | PC8 | bidirectional | FT_f I/O (Fm+ capable) with TIM3_CH3, TIM8_CH3, TIM20_CH3 and I2C3_SCL alternate functions. |+| 41 | PC9 | bidirectional | FT_f I/O (Fm+ capable) with TIM3_CH4, TIM8_CH4, I2SCKIN, TIM8_BKIN2 and I2C3_SDA alternate functions. |+| 42 | PA8 | bidirectional | FT_f I/O with MCO, I2C3_SCL, I2C2_SDA, I2S2_MCK, TIM1_CH1, USART1_CK, TIM4_ETR, SAI1_CK2 and SAI1_SCK_A alternate functions. |+| 43 | PA9 | bidirectional | FT_fd I/O with I2C3_SMBA, I2C2_SCL, I2S3_MCK, TIM1_CH2, USART1_TX, TIM15_BKIN, TIM2_CH3 and SAI1_FS_A alternate functions; additional function UCPD1_DBCC1 (dead battery control). |+| 44 | PA10 | bidirectional | FT_da I/O with TIM17_BKIN, USB_CRS_SYNC, I2C2_SMBA, SPI2_MISO, TIM1_CH3, USART1_RX, TIM2_CH4, TIM8_BKIN, SAI1_D1 and SAI1_SD_A alternate functions; additional function UCPD1_DBCC2 (dead battery control). |+| 45 | PA11 | bidirectional | FT_u I/O with SPI2_MOSI/I2S2_SD, TIM1_CH1N, USART1_CTS, COMP1_OUT, FDCAN1_RX, TIM4_CH1, TIM1_CH4 and TIM1_BKIN2 alternate functions; additional function USB_DM. |+| 46 | PA12 | bidirectional | FT_u I/O with TIM16_CH1, I2SCKIN, TIM1_CH2N, USART1_RTS_DE, COMP2_OUT, FDCAN1_TX, TIM4_CH2 and TIM1_ETR alternate functions; additional function USB_DP. |+| 47 | VSS | power_in | Digital ground supply pin; must be connected to the external ground. |+| 48 | VDD | power_in | Digital supply pin, 1.71 V to 3.6 V operating range, to be decoupled with ceramic capacitors. |+| 49 | PA13 | bidirectional | FT_f I/O that is SWDIO-JTMS after reset (internal pull-up active), with TIM16_CH1N, I2C1_SCL, IR_OUT, USART3_CTS, TIM4_CH3 and SAI1_SD_B alternate functions. |+| 50 | PA14 | bidirectional | FT_f I/O that is SWCLK-JTCK after reset (internal pull-down active), with LPTIM1_OUT, I2C1_SDA, TIM8_CH2, TIM1_BKIN, USART2_TX and SAI1_FS_B alternate functions. |+| 51 | PA15 | bidirectional | FT_f I/O that is JTDI after reset (internal pull-up active), with TIM2_CH1, TIM8_CH1, TIM20_ETR, I2C1_SCL, SPI1_NSS, SPI3_NSS/I2S3_WS, USART2_RX, UART4_RTS_DE and TIM1_BKIN alternate functions. |+| 52 | PC10 | bidirectional | FT I/O with TIM8_CH1N, UART4_TX, SPI3_SCK/I2S3_CK and USART3_TX alternate functions. |+| 53 | PC11 | bidirectional | FT_f I/O with TIM8_CH2N, UART4_RX, SPI3_MISO, USART3_RX and I2C3_SDA alternate functions. |+| 54 | PC12 | bidirectional | FT I/O with TIM8_CH3N, UART5_TX, SPI3_MOSI/I2S3_SD, USART3_CK and UCPD1_FRSTX alternate functions. |+| 55 | PD2 | bidirectional | FT I/O with TIM3_ETR, TIM8_BKIN and UART5_RX alternate functions. |+| 56 | PB3 | bidirectional | FT I/O that is JTDO/TRACESWO after reset, with TIM2_CH2, TIM4_ETR, USB_CRS_SYNC, TIM8_CH1N, SPI1_SCK, SPI3_SCK/I2S3_CK, USART2_TX, TIM3_ETR and SAI1_SCK_B alternate functions. |+| 57 | PB4 | bidirectional | FT_c I/O that is JTRST after reset (internal pull-up active), with TIM16_CH1, TIM3_CH1, SPI1_MISO, SPI3_MISO, USART2_RX, UART5_RTS_DE and SAI1_MCLK_B alternate functions; additional function UCPD1_CC2 with 5.1 kΩ dead-battery pull-down. |+| 58 | PB5 | bidirectional | FT_f I/O with 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 and UART5_CTS alternate functions. |+| 59 | PB6 | bidirectional | FT_c I/O with TIM16_CH1N, TIM4_CH1, TIM8_CH1, TIM8_ETR, USART1_TX, COMP4_OUT, FDCAN2_TX, TIM8_BKIN2, LPTIM1_ETR and SAI1_FS_B alternate functions; additional function UCPD1_CC1 with 5.1 kΩ dead-battery pull-down. |+| 60 | PB7 | bidirectional | FT_f I/O with TIM17_CH1N, TIM4_CH2, I2C1_SDA, TIM8_BKIN, USART1_RX, COMP3_OUT, TIM3_CH4, LPTIM1_IN2 and UART4_CTS alternate functions; additional function PVD_IN. |+| 61 | PB8-BOOT0 | bidirectional | FT_f I/O that doubles as the BOOT0 pin, with TIM16_CH1, TIM4_CH3, SAI1_CK1, I2C1_SCL, USART3_RX, COMP1_OUT, FDCAN1_RX, TIM8_CH2, TIM1_BKIN and SAI1_MCLK_A alternate functions; set to a mode other than analog after startup to limit consumption if left unconnected. |+| 62 | PB9 | bidirectional | FT_f I/O with TIM17_CH1, TIM4_CH4, SAI1_D2, I2C1_SDA, IR_OUT, USART3_TX, COMP2_OUT, FDCAN1_TX, TIM8_CH3, TIM1_CH3N and SAI1_FS_A alternate functions. |+| 63 | VSS | power_in | Digital ground supply pin; must be connected to the external ground. |+| 64 | VDD | power_in | Digital supply pin, 1.71 V to 3.6 V operating range, to be decoupled with ceramic capacitors. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | LQFP-64(10x10) |+| Category | Embedded Processors & Controllers |+| Pins | 64 |++## CAD (KiCad official)++- Symbol: `STM32G491RET6`+- Footprint: `Package_QFP:LQFP-64_10x10mm_P0.5mm`+- 3D model: LQFP-64(10x10) (KiCad packages3D, STEP)+- 3D model files: `stm32g491ret6-etched.step` / `stm32g491ret6-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `stm32g491ret6.step` / `stm32g491ret6.glb` are the bare package body.++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590385548037951488) (199 pp, sha256 `ba71e197157250a1`, retrieved 2026-10-05, tier: lcsc)+- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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](docs/stm32g491ret6-datasheet.pdf)
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Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",+ "tags": [+ "component",+ "embedded processors & controllers",+ "stm32g491ret6",+ "factory-2.0.0",+ "extractor-text"+ ],+ "dependencies": {},+ "hero": {+ "type": "image",+ "path": "docs/hero.png"+ },+ "files": [+ "page.json",+ "README.md",+ "stm32g491ret6.kicad_sym",+ "stm32g491ret6.kicad_mod",+ "stm32g491ret6.glb",+ "stm32g491ret6.step",+ "stm32g491ret6.lbr",+ "docs/hero.png",+ "docs/stm32g491ret6-datasheet.pdf",+ "viewers/symbol.html",+ "viewers/footprint.html",+ "stm32g491ret6-hero.glb",+ "stm32g491ret6-hero.overlay.json"+ ],+ "component": {+ "mpn": "STM32G491RET6",+ "manufacturer": "STMicroelectronics",+ "package": "LQFP-64(10x10)",+ "pin_count": 64,+ "category": "Embedded Processors & Controllers",+ "subcategory": "Microcontrollers (MCU/MPU/SOC)",+ "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590385548037951488",+ "parts": {+ "symbol": "stm32g491ret6.kicad_sym",+ "footprint": "stm32g491ret6.kicad_mod",+ "model_3d": "stm32g491ret6-hero.glb",+ "model_3d_plain": "stm32g491ret6.glb",+ "model_3d_step": "stm32g491ret6-etched.step",+ "model_3d_step_plain": "stm32g491ret6.step",+ "lbr": "stm32g491ret6.lbr"+ },+ "distributor_links": {+ "lcsc": 3231005,+ "digikey": "497-STM32G491RET6-ND",+ "mouser": "511-STM32G491RET6"+ },+ "distributor_check": {+ "checked_at": "2026-10-05T20:50:32Z",+ "source": "Component Ocean /api/assign-pns",+ "digikey": {+ "pn": "497-STM32G491RET6-ND",+ "status": "found"+ },+ "mouser": {+ "pn": "511-STM32G491RET6",+ "status": "found"+ }+ },+ "pins": [+ {+ "number": "1",+ "name": "VBAT",+ "type": "power_in",+ "description": "Backup supply for RTC and backup registers, operating range 1.55 V to 3.6 V."+ },+ {+ "number": "2",+ "name": "PC13",+ "type": "bidirectional",+ "description": "FT I/O supplied through the power switch (3 mA max sink), so output speed is limited to 2 MHz with 30 pF max load; additional functions WKUP2, RTC_TAMP1, RTC_TS, RTC_OUT1."+ },+ {+ "number": "3",+ "name": "PC14-OSC32_IN",+ "type": "bidirectional",+ "description": "FT I/O supplied through the power switch with limited output (2 MHz, 30 pF max); additional function OSC32_IN for the 32.768 kHz LSE crystal."+ },+ {+ "number": "4",+ "name": "PC15-OSC32_OUT",+ "type": "bidirectional",+ "description": "FT I/O supplied through the power switch with limited output (2 MHz, 30 pF max); additional function OSC32_OUT for the 32.768 kHz LSE crystal."+ },+ {+ "number": "5",+ "name": "PF0-OSC_IN",+ "type": "bidirectional",+ "description": "FT_fa I/O with I2C2_SDA, SPI2_NSS/I2S2_WS and TIM1_CH3N alternate functions; additional functions ADC1_IN10 and OSC_IN (HSE crystal input)."+ },+ {+ "number": "6",+ "name": "PF1-OSC_OUT",+ "type": "bidirectional",+ "description": "FT_a I/O with SPI2_SCK/I2S2_CK alternate function; additional functions ADC2_IN10, COMP3_INM and OSC_OUT (HSE crystal output)."+ },+ {+ "number": "7",+ "name": "PG10-NRST",+ "type": "bidirectional",+ "description": "Bidirectional reset pin with embedded weak pull-up resistor (NRST); also usable as PG10 with MCO alternate function."+ },+ {+ "number": "8",+ "name": "PC0",+ "type": "bidirectional",+ "description": "FT_a I/O with LPTIM1_IN1, TIM1_CH1 and LPUART1_RX alternate functions; additional functions ADC12_IN6 and COMP3_INM."+ },+ {+ "number": "9",+ "name": "PC1",+ "type": "bidirectional",+ "description": "TT_a I/O with LPTIM1_OUT, TIM1_CH2, LPUART1_TX, QUADSPI1_BK2_IO0 and SAI1_SD_A alternate functions; additional functions ADC12_IN7 and COMP3_INP."+ },+ {+ "number": "10",+ "name": "PC2",+ "type": "bidirectional",+ "description": "FT_a I/O with LPTIM1_IN2, TIM1_CH3, COMP3_OUT, TIM20_CH2 and QUADSPI1_BK2_IO1 alternate functions; additional function ADC12_IN8."+ },+ {+ "number": "11",+ "name": "PC3",+ "type": "bidirectional",+ "description": "FT_a I/O with LPTIM1_ETR, TIM1_CH4, SAI1_D1, TIM1_BKIN2, QUADSPI1_BK2_IO2 and SAI1_SD_A alternate functions; additional function ADC12_IN9."+ },+ {+ "number": "12",+ "name": "PA0",+ "type": "bidirectional",+ "description": "TT_a I/O with TIM2_CH1, USART2_CTS, COMP1_OUT, TIM8_BKIN and TIM8_ETR alternate functions; additional functions ADC12_IN1, COMP1_INM, COMP3_INP, RTC_TAMP2 and WKUP1."+ },+ {+ "number": "13",+ "name": "PA1",+ "type": "bidirectional",+ "description": "TT_a I/O with RTC_REFIN, TIM2_CH2, USART2_RTS_DE and TIM15_CH1N alternate functions; additional functions ADC12_IN2, COMP1_INP and OPAMP1_VINP/OPAMP3_VINP/OPAMP6_VINM."+ },+ {+ "number": "14",+ "name": "PA2",+ "type": "bidirectional",+ "description": "TT_a I/O with TIM2_CH3, USART2_TX, COMP2_OUT, TIM15_CH1, QUADSPI1_BK1_NCS, LPUART1_TX and UCPD1_FRSTX alternate functions; additional functions ADC1_IN3, COMP2_INM, OPAMP1_VOUT and WKUP4/LSCO."+ },+ {+ "number": "15",+ "name": "VSS",+ "type": "power_in",+ "description": "Digital ground supply pin; must be connected to the external ground."+ },+ {+ "number": "16",+ "name": "VDD",+ "type": "power_in",+ "description": "Digital supply pin, 1.71 V to 3.6 V operating range, to be decoupled with ceramic capacitors."+ },+ {+ "number": "17",+ "name": "PA3",+ "type": "bidirectional",+ "description": "TT_a I/O with TIM2_CH4, SAI1_CK1, USART2_RX, TIM15_CH2, QUADSPI1_CLK, LPUART1_RX and SAI1_MCLK_A alternate functions; additional functions ADC1_IN4, COMP2_INP and OPAMP1_VINM/OPAMP1_VINP."+ },+ {+ "number": "18",+ "name": "PA4",+ "type": "bidirectional",+ "description": "TT_a I/O with TIM3_CH2, SPI1_NSS, SPI3_NSS/I2S3_WS, USART2_CK and SAI1_FS_B alternate functions; additional functions ADC2_IN17, DAC1_OUT1 and COMP1_INM."+ },+ {+ "number": "19",+ "name": "PA5",+ "type": "bidirectional",+ "description": "TT_a I/O with TIM2_CH1, TIM2_ETR, SPI1_SCK and UCPD1_FRSTX alternate functions; additional functions ADC2_IN13, DAC1_OUT2, COMP2_INM and OPAMP2_VINM."+ },+ {+ "number": "20",+ "name": "PA6",+ "type": "bidirectional",+ "description": "TT_a I/O with TIM16_CH1, TIM3_CH1, TIM8_BKIN, SPI1_MISO, TIM1_BKIN, COMP1_OUT, QUADSPI1_BK1_IO3 and LPUART1_CTS alternate functions; additional functions ADC2_IN3 and OPAMP2_VOUT."+ },+ {+ "number": "21",+ "name": "PA7",+ "type": "bidirectional",+ "description": "TT_a I/O with TIM17_CH1, TIM3_CH2, TIM8_CH1N, SPI1_MOSI, TIM1_CH1N, COMP2_OUT, QUADSPI1_BK1_IO2 and UCPD1_FRSTX alternate functions; additional functions ADC2_IN4, COMP2_INP, OPAMP1_VINP and OPAMP2_VINP."+ },+ {+ "number": "22",+ "name": "PC4",+ "type": "bidirectional",+ "description": "FT_fa I/O with TIM1_ETR, I2C2_SCL, USART1_TX and QUADSPI1_BK2_IO3 alternate functions; additional function ADC2_IN5."+ },+ {+ "number": "23",+ "name": "PC5",+ "type": "bidirectional",+ "description": "TT_a I/O with TIM15_BKIN, SAI1_D3, TIM1_CH4N and USART1_RX alternate functions; additional functions ADC2_IN11, OPAMP1_VINM, OPAMP2_VINM and WKUP5."+ },+ {+ "number": "24",+ "name": "PB0",+ "type": "bidirectional",+ "description": "TT_a I/O with TIM3_CH3, TIM8_CH2N, TIM1_CH2N, QUADSPI1_BK1_IO1 and UCPD1_FRSTX alternate functions; additional functions ADC1_IN15/ADC3_IN12, COMP4_INP, OPAMP2_VINP and OPAMP3_VINP."+ },+ {+ "number": "25",+ "name": "PB1",+ "type": "bidirectional",+ "description": "TT_a I/O with TIM3_CH4, TIM8_CH3N, TIM1_CH3N, COMP4_OUT, QUADSPI1_BK1_IO0 and LPUART1_RTS_DE alternate functions; additional functions ADC1_IN12/ADC3_IN1, COMP1_INP, OPAMP3_VOUT and OPAMP6_VINM."+ },+ {+ "number": "26",+ "name": "PB2",+ "type": "bidirectional",+ "description": "TT_a I/O with RTC_OUT2, LPTIM1_OUT, TIM20_CH1, I2C3_SMBA and QUADSPI1_BK2_IO1 alternate functions; additional functions ADC2_IN12, COMP4_INM and OPAMP3_VINM."+ },+ {+ "number": "27",+ "name": "VSSA",+ "type": "power_in",+ "description": "Analog ground supply pin for the analog domain (ADC, DAC, OPAMP, COMP, VREFBUF)."+ },+ {+ "number": "28",+ "name": "VREF+",+ "type": "power_in",+ "description": "Voltage reference pin; additional function VREFBUF_OUT (internal reference buffer output); VREF+ must not exceed VDDA by more than 0.4 V."+ },+ {+ "number": "29",+ "name": "VDDA",+ "type": "power_in",+ "description": "Analog supply pin, 1.62 V to 3.6 V when ADC or COMP is used (2.0 V min with OPAMP, 2.4 V min with VREFBUF)."+ },+ {+ "number": "30",+ "name": "PB10",+ "type": "bidirectional",+ "description": "TT_a I/O with TIM2_CH3, USART3_TX, LPUART1_RX, QUADSPI1_CLK, TIM1_BKIN and SAI1_SCK_A alternate functions; additional function OPAMP3_VINM."+ },+ {+ "number": "31",+ "name": "VSS",+ "type": "power_in",+ "description": "Digital ground supply pin; must be connected to the external ground."+ },+ {+ "number": "32",+ "name": "VDD",+ "type": "power_in",+ "description": "Digital supply pin, 1.71 V to 3.6 V operating range, to be decoupled with ceramic capacitors."+ },+ {+ "number": "33",+ "name": "PB11",+ "type": "bidirectional",+ "description": "TT_a I/O with TIM2_CH4, USART3_RX, LPUART1_TX and QUADSPI1_BK1_NCS alternate functions; additional functions ADC12_IN14 and OPAMP6_VOUT."+ },+ {+ "number": "34",+ "name": "PB12",+ "type": "bidirectional",+ "description": "TT_a I/O with I2C2_SMBA, SPI2_NSS/I2S2_WS, TIM1_BKIN, USART3_CK, LPUART1_RTS_DE and FDCAN2_RX alternate functions; additional functions ADC1_IN11 and OPAMP6_VINP."+ },+ {+ "number": "35",+ "name": "PB13",+ "type": "bidirectional",+ "description": "TT_a I/O with SPI2_SCK/I2S2_CK, TIM1_CH1N, USART3_CTS, LPUART1_CTS and FDCAN2_TX alternate functions; additional functions ADC3_IN5, OPAMP3_VINP and OPAMP6_VINP."+ },+ {+ "number": "36",+ "name": "PB14",+ "type": "bidirectional",+ "description": "TT_a I/O with TIM15_CH1, SPI2_MISO, TIM1_CH2N, USART3_RTS_DE and COMP4_OUT alternate functions; additional functions ADC1_IN5 and OPAMP2_VINP."+ },+ {+ "number": "37",+ "name": "PB15",+ "type": "bidirectional",+ "description": "FT_a I/O with RTC_REFIN, TIM15_CH2, TIM15_CH1N, COMP3_OUT, TIM1_CH3N and SPI2_MOSI/I2S2_SD alternate functions; additional function ADC2_IN15."+ },+ {+ "number": "38",+ "name": "PC6",+ "type": "bidirectional",+ "description": "FT I/O with TIM3_CH1, TIM8_CH1 and I2S2_MCK alternate functions."+ },+ {+ "number": "39",+ "name": "PC7",+ "type": "bidirectional",+ "description": "FT I/O with TIM3_CH2, TIM8_CH2 and I2S3_MCK alternate functions."+ },+ {+ "number": "40",+ "name": "PC8",+ "type": "bidirectional",+ "description": "FT_f I/O (Fm+ capable) with TIM3_CH3, TIM8_CH3, TIM20_CH3 and I2C3_SCL alternate functions."+ },+ {+ "number": "41",+ "name": "PC9",+ "type": "bidirectional",+ "description": "FT_f I/O (Fm+ capable) with TIM3_CH4, TIM8_CH4, I2SCKIN, TIM8_BKIN2 and I2C3_SDA alternate functions."+ },+ {+ "number": "42",+ "name": "PA8",+ "type": "bidirectional",+ "description": "FT_f I/O with MCO, I2C3_SCL, I2C2_SDA, I2S2_MCK, TIM1_CH1, USART1_CK, TIM4_ETR, SAI1_CK2 and SAI1_SCK_A alternate functions."+ },+ {+ "number": "43",+ "name": "PA9",+ "type": "bidirectional",+ "description": "FT_fd I/O with I2C3_SMBA, I2C2_SCL, I2S3_MCK, TIM1_CH2, USART1_TX, TIM15_BKIN, TIM2_CH3 and SAI1_FS_A alternate functions; additional function UCPD1_DBCC1 (dead battery control)."+ },+ {+ "number": "44",+ "name": "PA10",+ "type": "bidirectional",+ "description": "FT_da I/O with TIM17_BKIN, USB_CRS_SYNC, I2C2_SMBA, SPI2_MISO, TIM1_CH3, USART1_RX, TIM2_CH4, TIM8_BKIN, SAI1_D1 and SAI1_SD_A alternate functions; additional function UCPD1_DBCC2 (dead battery control)."+ },+ {+ "number": "45",+ "name": "PA11",+ "type": "bidirectional",+ "description": "FT_u I/O with SPI2_MOSI/I2S2_SD, TIM1_CH1N, USART1_CTS, COMP1_OUT, FDCAN1_RX, TIM4_CH1, TIM1_CH4 and TIM1_BKIN2 alternate functions; additional function USB_DM."+ },+ {+ "number": "46",+ "name": "PA12",+ "type": "bidirectional",+ "description": "FT_u I/O with TIM16_CH1, I2SCKIN, TIM1_CH2N, USART1_RTS_DE, COMP2_OUT, FDCAN1_TX, TIM4_CH2 and TIM1_ETR alternate functions; additional function USB_DP."+ },+ {+ "number": "47",+ "name": "VSS",+ "type": "power_in",+ "description": "Digital ground supply pin; must be connected to the external ground."+ },+ {+ "number": "48",+ "name": "VDD",+ "type": "power_in",+ "description": "Digital supply pin, 1.71 V to 3.6 V operating range, to be decoupled with ceramic capacitors."+ },+ {+ "number": "49",+ "name": "PA13",+ "type": "bidirectional",+ "description": "FT_f I/O that is SWDIO-JTMS after reset (internal pull-up active), with TIM16_CH1N, I2C1_SCL, IR_OUT, USART3_CTS, TIM4_CH3 and SAI1_SD_B alternate functions."+ },+ {+ "number": "50",+ "name": "PA14",+ "type": "bidirectional",+ "description": "FT_f I/O that is SWCLK-JTCK after reset (internal pull-down active), with LPTIM1_OUT, I2C1_SDA, TIM8_CH2, TIM1_BKIN, USART2_TX and SAI1_FS_B alternate functions."+ },+ {+ "number": "51",+ "name": "PA15",+ "type": "bidirectional",+ "description": "FT_f I/O that is JTDI after reset (internal pull-up active), with TIM2_CH1, TIM8_CH1, TIM20_ETR, I2C1_SCL, SPI1_NSS, SPI3_NSS/I2S3_WS, USART2_RX, UART4_RTS_DE and TIM1_BKIN alternate functions."+ },+ {+ "number": "52",+ "name": "PC10",+ "type": "bidirectional",+ "description": "FT I/O with TIM8_CH1N, UART4_TX, SPI3_SCK/I2S3_CK and USART3_TX alternate functions."+ },+ {+ "number": "53",+ "name": "PC11",+ "type": "bidirectional",+ "description": "FT_f I/O with TIM8_CH2N, UART4_RX, SPI3_MISO, USART3_RX and I2C3_SDA alternate functions."+ },+ {+ "number": "54",+ "name": "PC12",+ "type": "bidirectional",+ "description": "FT I/O with TIM8_CH3N, UART5_TX, SPI3_MOSI/I2S3_SD, USART3_CK and UCPD1_FRSTX alternate functions."+ },+ {+ "number": "55",+ "name": "PD2",+ "type": "bidirectional",+ "description": "FT I/O with TIM3_ETR, TIM8_BKIN and UART5_RX alternate functions."+ },+ {+ "number": "56",+ "name": "PB3",+ "type": "bidirectional",+ "description": "FT I/O that is JTDO/TRACESWO after reset, with TIM2_CH2, TIM4_ETR, USB_CRS_SYNC, TIM8_CH1N, SPI1_SCK, SPI3_SCK/I2S3_CK, USART2_TX, TIM3_ETR and SAI1_SCK_B alternate functions."+ },+ {+ "number": "57",+ "name": "PB4",+ "type": "bidirectional",+ "description": "FT_c I/O that is JTRST after reset (internal pull-up active), with TIM16_CH1, TIM3_CH1, SPI1_MISO, SPI3_MISO, USART2_RX, UART5_RTS_DE and SAI1_MCLK_B alternate functions; additional function UCPD1_CC2 with 5.1 kΩ dead-battery pull-down."+ },+ {+ "number": "58",+ "name": "PB5",+ "type": "bidirectional",+ "description": "FT_f I/O with 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 and UART5_CTS alternate functions."+ },+ {+ "number": "59",+ "name": "PB6",+ "type": "bidirectional",+ "description": "FT_c I/O with TIM16_CH1N, TIM4_CH1, TIM8_CH1, TIM8_ETR, USART1_TX, COMP4_OUT, FDCAN2_TX, TIM8_BKIN2, LPTIM1_ETR and SAI1_FS_B alternate functions; additional function UCPD1_CC1 with 5.1 kΩ dead-battery pull-down."+ },+ {+ "number": "60",+ "name": "PB7",+ "type": "bidirectional",+ "description": "FT_f I/O with TIM17_CH1N, TIM4_CH2, I2C1_SDA, TIM8_BKIN, USART1_RX, COMP3_OUT, TIM3_CH4, LPTIM1_IN2 and UART4_CTS alternate functions; additional function PVD_IN."+ },+ {+ "number": "61",+ "name": "PB8-BOOT0",+ "type": "bidirectional",+ "description": "FT_f I/O that doubles as the BOOT0 pin, with TIM16_CH1, TIM4_CH3, SAI1_CK1, I2C1_SCL, USART3_RX, COMP1_OUT, FDCAN1_RX, TIM8_CH2, TIM1_BKIN and SAI1_MCLK_A alternate functions; set to a mode other than analog after startup to limit consumption if left unconnected."+ },+ {+ "number": "62",+ "name": "PB9",+ "type": "bidirectional",+ "description": "FT_f I/O with TIM17_CH1, TIM4_CH4, SAI1_D2, I2C1_SDA, IR_OUT, USART3_TX, COMP2_OUT, FDCAN1_TX, TIM8_CH3, TIM1_CH3N and SAI1_FS_A alternate functions."+ },+ {+ "number": "63",+ "name": "VSS",+ "type": "power_in",+ "description": "Digital ground supply pin; must be connected to the external ground."+ },+ {+ "number": "64",+ "name": "VDD",+ "type": "power_in",+ "description": "Digital supply pin, 1.71 V to 3.6 V operating range, to be decoupled with ceramic capacitors."+ }+ ],+ "provenance": {+ "extractor": "extract_pins 0.3",+ "factory_chain": {+ "factory": "2.0.0",+ "extractor": "extract_pins 0.3",+ "primary_model": "claude-haiku-4-5-20251001",+ "primary_mode": "text",+ "consensus_model": "claude-sonnet-5-5",+ "consensus": "agreed",+ "guards": "pin_guards 0.1: passed",+ "guard_notes": [+ "extractor flagged: Pin 2 designation not clearly stated in Figure 9 on page 47 - datasheet text shows jump from pin 1 (",+ "1/64 pins cited to the wrong page (name found elsewhere): ['2:NC@p47']"+ ],+ "pages_sent": 80,+ "cost_usd": 0.5777,+ "at": "2026-10-05T20:50:08"+ },+ "datasheet": {+ "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590385548037951488",+ "pages": 199,+ "sha256": "ba71e197157250a1",+ "source_tier": "lcsc"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 64,+ "described": 64,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "visibility": "public",+ "org": "adom",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }+}