STM32L412RBT6P

{
  "schema_version": 1,
  "type": "component",
  "slug": "stm32l412rbt6p",
  "title": "STM32L412RBT6P",
  "brief": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), LQFP-64(10x10). Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32l412rbt6p",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "STM32L412RBT6P",
    "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/8588922103156649985",
    "parts": {
      "symbol": "stm32l412rbt6p.kicad_sym",
      "footprint": "stm32l412rbt6p.kicad_mod",
      "model_3d": "stm32l412rbt6p-hero.glb",
      "model_3d_plain": "stm32l412rbt6p.glb",
      "model_3d_step": "stm32l412rbt6p-etched.step",
      "model_3d_step_plain": "stm32l412rbt6p.step",
      "lbr": "stm32l412rbt6p.lbr"
    },
    "distributor_links": {
      "lcsc": "C1342053",
      "digikey": "STM32L412RBT6P-ND",
      "mouser": "511-STM32L412RBT6P"
    },
    "distributor_check": {
      "checked_at": "2026-10-10T20:15:48Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "STM32L412RBT6P-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32L412RBT6P",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup supply (1.55 V to 3.6 V) that powers the RTC and the 32x32-bit backup registers in VBAT mode."
      },
      {
        "number": "2",
        "name": "PC13",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; additional functions RTC_TAMP1/RTC_TS/RTC_OUT1/WKUP2 and alternate function EVENTOUT."
      },
      {
        "number": "3",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; additional function OSC32_IN (32 kHz LSE crystal input) and alternate function EVENTOUT."
      },
      {
        "number": "4",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; additional function OSC32_OUT (32 kHz LSE crystal output) and alternate function EVENTOUT."
      },
      {
        "number": "5",
        "name": "PH0-OSC_IN",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; additional function OSC_IN (HSE oscillator input) and alternate function EVENTOUT."
      },
      {
        "number": "6",
        "name": "PH1-OSC_OUT",
        "type": "bidirectional",
        "description": "5 V tolerant (FT) I/O; additional function OSC_OUT (HSE oscillator output) and alternate function EVENTOUT."
      },
      {
        "number": "7",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional reset pin with embedded weak pull-up resistor (RPU 25 kΩ to 55 kΩ)."
      },
      {
        "number": "8",
        "name": "PC0",
        "type": "bidirectional",
        "description": "FT_fa I/O (5 V tolerant, Fm+ capable, analog switch supplied by VDDA); alternate functions include TRACECK, LPTIM1_IN1, I2C3_SCL, LPUART1_RX, LPTIM2_IN1 and EVENTOUT, additional function ADC12_IN1."
      },
      {
        "number": "9",
        "name": "PC1",
        "type": "bidirectional",
        "description": "FT_fa I/O (5 V tolerant, Fm+ capable, analog switch supplied by VDDA); alternate functions include TRACED0, LPTIM1_OUT, I2C3_SDA, LPUART1_TX and EVENTOUT, additional function ADC12_IN2."
      },
      {
        "number": "10",
        "name": "PC2",
        "type": "bidirectional",
        "description": "FT_a I/O (5 V tolerant, analog switch supplied by VDDA); alternate functions LPTIM1_IN2, SPI2_MISO and EVENTOUT, additional function ADC12_IN3."
      },
      {
        "number": "11",
        "name": "PC3",
        "type": "bidirectional",
        "description": "FT_a I/O (5 V tolerant, analog switch supplied by VDDA); alternate functions LPTIM1_ETR, SPI2_MOSI, LPTIM2_ETR and EVENTOUT, additional function ADC12_IN4."
      },
      {
        "number": "12",
        "name": "VSSA/VREF-",
        "type": "power_in",
        "description": "Analog ground and ADC negative reference voltage (VREF-), which can be connected internally to VSSA depending on the package."
      },
      {
        "number": "13",
        "name": "VDDA/VREF+",
        "type": "power_in",
        "description": "Analog supply, 1.62 V to 3.6 V when ADC or COMP is used and 1.8 V to 3.6 V when OPAMP is used, also serving as ADC positive reference VREF+ on this package."
      },
      {
        "number": "14",
        "name": "PA0",
        "type": "bidirectional",
        "description": "FT_a I/O (5 V tolerant, analog switch supplied by VDDA); alternate functions TIM2_CH1, USART2_CTS, COMP1_OUT, TIM2_ETR and EVENTOUT, additional functions OPAMP1_VINP, COMP1_INM, ADC1_IN5, RTC_TAMP2/WKUP1."
      },
      {
        "number": "15",
        "name": "PA1",
        "type": "bidirectional",
        "description": "FT_a I/O (5 V tolerant, analog switch supplied by VDDA); alternate functions TIM2_CH2, I2C1_SMBA, SPI1_SCK, USART2_RTS_DE, TIM15_CH1N and EVENTOUT, additional functions OPAMP1_VINM, COMP1_INP, ADC1_IN6."
      },
      {
        "number": "16",
        "name": "PA2",
        "type": "bidirectional",
        "description": "FT_a I/O (5 V tolerant, analog switch supplied by VDDA); alternate functions TIM2_CH3, USART2_TX, LPUART1_TX, QUADSPI_BK1_NCS, TIM15_CH1 and EVENTOUT, additional functions ADC12_IN7 and WKUP4/LSCO."
      },
      {
        "number": "17",
        "name": "PA3",
        "type": "bidirectional",
        "description": "TT_a I/O (3.6 V tolerant, analog switch supplied by VDDA); alternate functions TIM2_CH4, USART2_RX, LPUART1_RX, QUADSPI_CLK, TIM15_CH2 and EVENTOUT, additional functions OPAMP1_VOUT and ADC12_IN8."
      },
      {
        "number": "18",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin, which must always be connected to the external ground in the permitted range."
      },
      {
        "number": "19",
        "name": "VDD",
        "type": "power_in",
        "description": "Main supply, standard operating voltage 1.71 V to 3.6 V, which must always be connected within the permitted range."
      },
      {
        "number": "20",
        "name": "PA4",
        "type": "bidirectional",
        "description": "TT_a I/O (3.6 V tolerant, analog switch supplied by VDDA); alternate functions SPI1_NSS, USART2_CK, LPTIM2_OUT and EVENTOUT, additional functions COMP1_INM and ADC12_IN9."
      },
      {
        "number": "21",
        "name": "PA5",
        "type": "bidirectional",
        "description": "TT_a I/O (3.6 V tolerant, analog switch supplied by VDDA); alternate functions TIM2_CH1, TIM2_ETR, SPI1_SCK, LPTIM2_ETR and EVENTOUT, additional functions COMP1_INM and ADC12_IN10."
      },
      {
        "number": "22",
        "name": "PA6",
        "type": "bidirectional",
        "description": "FT_a I/O (5 V tolerant, analog switch supplied by VDDA); alternate functions TIM1_BKIN, SPI1_MISO, COMP1_OUT, USART3_CTS, LPUART1_CTS, QUADSPI_BK1_IO3, TIM16_CH1 and EVENTOUT, additional function ADC12_IN11."
      },
      {
        "number": "23",
        "name": "PA7",
        "type": "bidirectional",
        "description": "FT_fa I/O (5 V tolerant, Fm+ capable, analog switch supplied by VDDA); alternate functions TIM1_CH1N, I2C3_SCL, SPI1_MOSI, QUADSPI_BK1_IO2 and EVENTOUT, additional function ADC12_IN12."
      },
      {
        "number": "24",
        "name": "PC4",
        "type": "bidirectional",
        "description": "FT_a I/O (5 V tolerant, analog switch supplied by VDDA); alternate function USART3_TX and EVENTOUT, additional functions COMP1_INM and ADC12_IN13."
      },
      {
        "number": "25",
        "name": "PB0",
        "type": "bidirectional",
        "description": "FT_a I/O (5 V tolerant, analog switch supplied by VDDA); alternate functions TRACED0, TIM1_CH2N, SPI1_NSS, USART3_CK, QUADSPI_BK1_IO1, COMP1_OUT and EVENTOUT, additional function ADC12_IN15."
      },
      {
        "number": "26",
        "name": "PB1",
        "type": "bidirectional",
        "description": "FT_a I/O (5 V tolerant, analog switch supplied by VDDA); alternate functions TRACED1, TIM1_CH3N, USART3_RTS_DE, LPUART1_RTS_DE, QUADSPI_BK1_IO0, LPTIM2_IN1 and EVENTOUT, additional functions COMP1_INM and ADC12_IN16."
      },
      {
        "number": "27",
        "name": "PB2",
        "type": "bidirectional",
        "description": "FT_a I/O (5 V tolerant, analog switch supplied by VDDA); alternate functions LPTIM1_OUT, I2C3_SMBA and EVENTOUT, additional functions COMP1_INP and RTC_OUT2."
      },
      {
        "number": "28",
        "name": "PB10",
        "type": "bidirectional",
        "description": "FT_f I/O (5 V tolerant, Fm+ capable); alternate functions TIM2_CH3, I2C2_SCL, SPI2_SCK, USART3_TX, LPUART1_RX, TSC_SYNC, QUADSPI_CLK, COMP1_OUT and EVENTOUT."
      },
      {
        "number": "29",
        "name": "PB11",
        "type": "bidirectional",
        "description": "FT_f I/O (5 V tolerant, Fm+ capable); alternate functions TIM2_CH4, I2C2_SDA, USART3_RX, LPUART1_TX, QUADSPI_BK1_NCS and EVENTOUT."
      },
      {
        "number": "30",
        "name": "VDD12",
        "type": "power_in",
        "description": "Core supply from the external SMPS, 1.08 V to 1.32 V over the full frequency range (1.00 V minimum up to 26 MHz)."
      },
      {
        "number": "31",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin, which must always be connected to the external ground in the permitted range."
      },
      {
        "number": "32",
        "name": "VDD",
        "type": "power_in",
        "description": "Main supply, standard operating voltage 1.71 V to 3.6 V, which must always be connected within the permitted range."
      },
      {
        "number": "33",
        "name": "PB12",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant); alternate functions TIM1_BKIN, I2C2_SMBA, SPI2_NSS, USART3_CK, LPUART1_RTS_DE, TSC_G1_IO1, TIM15_BKIN and EVENTOUT."
      },
      {
        "number": "34",
        "name": "PB13",
        "type": "bidirectional",
        "description": "FT_f I/O (5 V tolerant, Fm+ capable); alternate functions TIM1_CH1N, I2C2_SCL, SPI2_SCK, USART3_CTS, LPUART1_CTS, TSC_G1_IO2, TIM15_CH1N and EVENTOUT."
      },
      {
        "number": "35",
        "name": "PB14",
        "type": "bidirectional",
        "description": "FT_f I/O (5 V tolerant, Fm+ capable); alternate functions TIM1_CH2N, I2C2_SDA, SPI2_MISO, USART3_RTS_DE, TSC_G1_IO3, TIM15_CH1 and EVENTOUT."
      },
      {
        "number": "36",
        "name": "PB15",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant); alternate functions RTC_REFIN, TIM1_CH3N, SPI2_MOSI, TSC_G1_IO4, TIM15_CH2 and EVENTOUT."
      },
      {
        "number": "37",
        "name": "PC6",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant); alternate functions TSC_G4_IO1 and EVENTOUT."
      },
      {
        "number": "38",
        "name": "PC7",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant); alternate functions TSC_G4_IO2 and EVENTOUT."
      },
      {
        "number": "39",
        "name": "PC8",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant); alternate functions TSC_G4_IO3 and EVENTOUT."
      },
      {
        "number": "40",
        "name": "PC9",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant); alternate functions TSC_G4_IO4, USB_NOE and EVENTOUT."
      },
      {
        "number": "41",
        "name": "PA8",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant); alternate functions MCO, TIM1_CH1, USART1_CK, LPTIM2_OUT and EVENTOUT."
      },
      {
        "number": "42",
        "name": "PA9",
        "type": "bidirectional",
        "description": "FT_f I/O (5 V tolerant, Fm+ capable); alternate functions TIM1_CH2, I2C1_SCL, USART1_TX, TIM15_BKIN and EVENTOUT."
      },
      {
        "number": "43",
        "name": "PA10",
        "type": "bidirectional",
        "description": "FT_f I/O (5 V tolerant, Fm+ capable); alternate functions TIM1_CH3, I2C1_SDA, USART1_RX, USB_CRS_SYNC and EVENTOUT."
      },
      {
        "number": "44",
        "name": "PA11",
        "type": "bidirectional",
        "description": "FT_u I/O (5 V tolerant, USB function supplied by VDDUSB); alternate functions TIM1_CH4, TIM1_BKIN2, SPI1_MISO, COMP1_OUT, USART1_CTS, USB_DM, TIM1_BKIN2_COMP1 and EVENTOUT."
      },
      {
        "number": "45",
        "name": "PA12",
        "type": "bidirectional",
        "description": "FT_u I/O (5 V tolerant, USB function supplied by VDDUSB); alternate functions TIM1_ETR, SPI1_MOSI, USART1_RTS_DE, USB_DP and EVENTOUT."
      },
      {
        "number": "46",
        "name": "PA13 (JTMS/SWDIO)",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant) whose default function is JTMS/SWDIO; alternate functions IR_OUT, USB_NOE and EVENTOUT."
      },
      {
        "number": "47",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin, which must always be connected to the external ground in the permitted range."
      },
      {
        "number": "48",
        "name": "VDDUSB",
        "type": "power_in",
        "description": "USB supply, 3.0 V to 3.6 V when USB is used, and it supplies the FT_u I/Os PA11 and PA12."
      },
      {
        "number": "49",
        "name": "PA14 (JTCK/SWCLK)",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant) whose default function is JTCK/SWCLK; alternate functions LPTIM1_OUT, I2C1_SMBA and EVENTOUT."
      },
      {
        "number": "50",
        "name": "PA15 (JTDI)",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant) whose default function is JTDI; alternate functions TIM2_CH1, TIM2_ETR, USART2_RX, SPI1_NSS, USART3_RTS_DE, TSC_G3_IO1 and EVENTOUT."
      },
      {
        "number": "51",
        "name": "PC10",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant); alternate functions TRACED1, USART3_TX, TSC_G3_IO2 and EVENTOUT."
      },
      {
        "number": "52",
        "name": "PC11",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant); alternate functions USART3_RX, TSC_G3_IO3 and EVENTOUT."
      },
      {
        "number": "53",
        "name": "PC12",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant); alternate functions TRACED3, USART3_CK, TSC_G3_IO4 and EVENTOUT."
      },
      {
        "number": "54",
        "name": "PB3 (JTDO/TRACESWO)",
        "type": "bidirectional",
        "description": "FT_a I/O (5 V tolerant, analog switch supplied by VDDA) whose default function is JTDO/TRACESWO; alternate functions TIM2_CH2, SPI1_SCK, USART1_RTS_DE and EVENTOUT."
      },
      {
        "number": "55",
        "name": "PB4 (NJTRST)",
        "type": "bidirectional",
        "description": "FT_fa I/O (5 V tolerant, Fm+ capable, analog switch supplied by VDDA) whose default function is NJTRST; alternate functions I2C3_SDA, SPI1_MISO, USART1_CTS, TSC_G2_IO1 and EVENTOUT."
      },
      {
        "number": "56",
        "name": "PB5",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant); alternate functions TRACED2, LPTIM1_IN1, I2C1_SMBA, SPI1_MOSI, USART1_CK, TSC_G2_IO2, TIM16_BKIN and EVENTOUT."
      },
      {
        "number": "57",
        "name": "PB6",
        "type": "bidirectional",
        "description": "FT_fa I/O (5 V tolerant, Fm+ capable, analog switch supplied by VDDA); alternate functions TRACED3, LPTIM1_ETR, I2C1_SCL, USART1_TX, TSC_G2_IO3, TIM16_CH1N and EVENTOUT."
      },
      {
        "number": "58",
        "name": "PB7",
        "type": "bidirectional",
        "description": "FT_fa I/O (5 V tolerant, Fm+ capable, analog switch supplied by VDDA); alternate functions TRACECK, LPTIM1_IN2, I2C1_SDA, USART1_RX, TSC_G2_IO4 and EVENTOUT, additional function PVD_IN."
      },
      {
        "number": "59",
        "name": "PH3-BOOT0",
        "type": "bidirectional",
        "description": "FT I/O (5 V tolerant) whose default function is BOOT0 (boot mode selection); alternate function EVENTOUT."
      },
      {
        "number": "60",
        "name": "PB8",
        "type": "bidirectional",
        "description": "FT_f I/O (5 V tolerant, Fm+ capable); alternate functions I2C1_SCL, TIM16_CH1 and EVENTOUT."
      },
      {
        "number": "61",
        "name": "PB9",
        "type": "bidirectional",
        "description": "FT_f I/O (5 V tolerant, Fm+ capable); alternate functions IR_OUT, I2C1_SDA, SPI2_NSS and EVENTOUT."
      },
      {
        "number": "62",
        "name": "VDD12",
        "type": "power_in",
        "description": "Core supply from the external SMPS, 1.08 V to 1.32 V over the full frequency range (1.00 V minimum up to 26 MHz)."
      },
      {
        "number": "63",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin, which must always be connected to the external ground in the permitted range."
      },
      {
        "number": "64",
        "name": "VDD",
        "type": "power_in",
        "description": "Main supply, standard operating voltage 1.71 V to 3.6 V, which must always be connected within the permitted range."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The MPN ends in 'P', which selects the dedicated external-SMPS pinout. The pinout above uses the 'LQ; Differences from the standard LQFP64 pinout: PC5 (standard pin 25) and PD2 (standard pin 54) are not; VDD12 appears twice in the SMPS LQFP64 column of Table 14 (pins 30 and 62). Both are listed as VDD12"
        ],
        "pages_sent": 73,
        "cost_usd": 0.339,
        "at": "2026-10-10T20:15:25"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588922103156649985",
        "pages": 192,
        "sha256": "469ab19caba48d70",
        "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"
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        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "b0c827bc5c05552175d28affe44a5bd2ab45c9c36efff6ff07a74cc449b13db4",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32l412rbt6p-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9c27134f697f8ae4842fe03e8bf856abac662c00fcea3238dd44b47775b808cc",
        "checked": "2026-10-10",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "STMicroelectronics",
      "Package": "LQFP-64(10x10)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "64"
    }
  },
  "variants": [],
  "sections": [
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    "breadcrumbs",
    "info"
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  "discovery_triggers": [
    "stm32l412rbt6p"
  ],
  "discovery_pitch": "STM32L412RBT6P (STMicroelectronics) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
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}