STM32L451REI6

{
  "slug": "stm32l451rei6",
  "version": "0.1.0",
  "type": "component",
  "description": "STMicroelectronics Microcontrollers (MCU/MPU/SOC), UFBGA-64. Pinout checked against ST's open pin data, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "stm32l451rei6",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "stm32l451rei6.kicad_sym",
    "stm32l451rei6.kicad_mod",
    "stm32l451rei6.glb",
    "stm32l451rei6.step",
    "stm32l451rei6.lbr",
    "docs/hero.png",
    "docs/stm32l451rei6-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "stm32l451rei6-hero.glb",
    "stm32l451rei6-hero.overlay.json"
  ],
  "component": {
    "mpn": "STM32L451REI6",
    "manufacturer": "STMicroelectronics",
    "package": "UFBGA-64",
    "pin_count": 64,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588951779437891584",
    "parts": {
      "symbol": "stm32l451rei6.kicad_sym",
      "footprint": "stm32l451rei6.kicad_mod",
      "model_3d": "stm32l451rei6-hero.glb",
      "model_3d_plain": "stm32l451rei6.glb",
      "model_3d_step": "stm32l451rei6-etched.step",
      "model_3d_step_plain": "stm32l451rei6.step",
      "lbr": "stm32l451rei6.lbr"
    },
    "distributor_links": {
      "lcsc": "C1337500",
      "digikey": "497-17976-ND",
      "mouser": "511-STM32L451REI6"
    },
    "distributor_check": {
      "checked_at": "2026-10-11T23:34:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "497-17976-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "511-STM32L451REI6",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "A1",
        "name": "PC14-OSC32_IN",
        "type": "bidirectional",
        "description": "Bidirectional 5 V-tolerant (FT) GPIO supplied through the backup power switch, which sinks only 3 mA, so output use is limited to 2 MHz at 30 pF maximum and it must not source current such as driving an LED; additional function OSC32_IN."
      },
      {
        "number": "A2",
        "name": "PC13",
        "type": "bidirectional",
        "description": "Bidirectional 5 V-tolerant (FT) GPIO supplied through the backup power switch, limited to 3 mA sink with output speed of 2 MHz maximum at 30 pF and no current-source use; additional functions RTC_TAMP1, RTC_TS, RTC_OUT, WKUP2."
      },
      {
        "number": "A3",
        "name": "PB9",
        "type": "bidirectional",
        "description": "Bidirectional 5 V-tolerant, Fm+ capable (FT_f) I/O; alternate functions IR_OUT, I2C1_SDA, SPI2_NSS, CAN1_TX, SDMMC1_D5, SAI1_FS_A, EVENTOUT."
      },
      {
        "number": "A4",
        "name": "PB4",
        "type": "bidirectional",
        "description": "Bidirectional 5 V-tolerant, Fm+ capable, analog-switch I/O (FT_fa) that is configured as the NJTRST JTAG debug function after reset with an internal pull-up enabled; alternate functions include TIM3_CH1, I2C3_SDA, SPI1_MISO, SPI3_MISO, USART1_CTS, TSC_G2_IO1, SAI1_MCLK_B; additional function COMP2_INP."
      },
      {
        "number": "A5",
        "name": "PB3",
        "type": "bidirectional",
        "description": "Bidirectional 5 V-tolerant, analog-switch I/O (FT_a) that is configured as the JTDO/TRACESWO debug function after reset; alternate functions include TIM2_CH2, SPI1_SCK, SPI3_SCK, USART1_RTS_DE, SAI1_SCK_B; additional function COMP2_INM."
      },
      {
        "number": "A6",
        "name": "PA15",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O that is configured as the JTDI debug function after reset with an internal pull-up enabled; alternate functions include TIM2_CH1, TIM2_ETR, USART2_RX, SPI1_NSS, SPI3_NSS, USART3_RTS_DE, UART4_RTS_DE, TSC_G3_IO1."
      },
      {
        "number": "A7",
        "name": "PA14",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O that is configured as the JTCK/SWCLK debug function after reset with an internal pull-down enabled; alternate functions include LPTIM1_OUT, I2C1_SMBA, I2C4_SMBA, SAI1_FS_B."
      },
      {
        "number": "A8",
        "name": "PA13",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O that is configured as the JTMS/SWDAT debug function after reset with an internal pull-up enabled; alternate functions include IR_OUT and SAI1_SD_B."
      },
      {
        "number": "B1",
        "name": "PC15-OSC32_OUT",
        "type": "bidirectional",
        "description": "Bidirectional 5 V-tolerant (FT) GPIO supplied through the backup power switch, limited to 3 mA sink with 2 MHz maximum output speed at 30 pF and no current-source use; additional function OSC32_OUT."
      },
      {
        "number": "B2",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup-domain supply input for the RTC and 32x32-bit backup registers, with backup operating voltage of 1.55 V to 3.6 V."
      },
      {
        "number": "B3",
        "name": "PB8",
        "type": "bidirectional",
        "description": "Bidirectional 5 V-tolerant, Fm+ capable (FT_f) I/O; alternate functions I2C1_SCL, CAN1_RX, SDMMC1_D4, SAI1_MCLK_A, TIM16_CH1, EVENTOUT."
      },
      {
        "number": "B4",
        "name": "PH3-BOOT0",
        "type": "bidirectional",
        "description": "I/O pin shared with the BOOT0 boot-mode function, with no I/O structure listed in the datasheet and EVENTOUT as its alternate function."
      },
      {
        "number": "B5",
        "name": "PD2",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions TRACED2, TIM3_ETR, USART3_RTS_DE, TSC_SYNC, SDMMC1_CMD, EVENTOUT."
      },
      {
        "number": "B6",
        "name": "PC11",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions SPI3_MISO, USART3_RX, UART4_RX, TSC_G3_IO3, SDMMC1_D3, EVENTOUT."
      },
      {
        "number": "B7",
        "name": "PC10",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions TRACED1, SPI3_SCK, USART3_TX, UART4_TX, TSC_G3_IO2, SDMMC1_D2, EVENTOUT."
      },
      {
        "number": "B8",
        "name": "PA12",
        "type": "bidirectional",
        "description": "5 V-tolerant, Fm+ capable (FT_f) I/O; alternate functions TIM1_ETR, SPI1_MOSI, USART1_RTS_DE, CAN1_TX, EVENTOUT."
      },
      {
        "number": "C1",
        "name": "PH0-OSC_IN",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate function EVENTOUT and additional function OSC_IN."
      },
      {
        "number": "C2",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground (VSS) pin of the digital supply domain."
      },
      {
        "number": "C3",
        "name": "PB7",
        "type": "bidirectional",
        "description": "5 V-tolerant, analog-switch I/O (FT_fa); alternate functions LPTIM1_IN2, I2C1_SDA, I2C4_SDA, USART1_RX, UART4_CTS, TSC_G2_IO4, EVENTOUT; additional functions COMP2_INM and PVD_IN."
      },
      {
        "number": "C4",
        "name": "PB5",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions LPTIM1_IN1, TIM3_CH2, CAN1_RX, I2C1_SMBA, SPI1_MOSI, SPI3_MOSI, USART1_CK, TSC_G2_IO2, COMP2_OUT, SAI1_SD_B, TIM16_BKIN, EVENTOUT."
      },
      {
        "number": "C5",
        "name": "PC12",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions TRACED3, SPI3_MOSI, USART3_CK, TSC_G3_IO4, SDMMC1_CK, EVENTOUT."
      },
      {
        "number": "C6",
        "name": "PA10",
        "type": "bidirectional",
        "description": "5 V-tolerant, Fm+ capable (FT_f) I/O; alternate functions TIM1_CH3, I2C1_SDA, USART1_RX, SAI1_SD_A, EVENTOUT."
      },
      {
        "number": "C7",
        "name": "PA9",
        "type": "bidirectional",
        "description": "5 V-tolerant, Fm+ capable (FT_f) I/O; alternate functions TIM1_CH2, I2C1_SCL, DFSDM1_DATIN1, USART1_TX, SAI1_FS_A, TIM15_BKIN, EVENTOUT."
      },
      {
        "number": "C8",
        "name": "PA11",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions TIM1_CH4, TIM1_BKIN2, SPI1_MISO, COMP1_OUT, USART1_CTS, CAN1_RX, TIM1_BKIN2_COMP1, EVENTOUT."
      },
      {
        "number": "D1",
        "name": "PH1-OSC_OUT",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate function EVENTOUT and additional function OSC_OUT."
      },
      {
        "number": "D2",
        "name": "VDD",
        "type": "power_in",
        "description": "Main digital supply pin, specified for VDD from 1.71 V to 3.6 V."
      },
      {
        "number": "D3",
        "name": "PB6",
        "type": "bidirectional",
        "description": "5 V-tolerant, analog-switch I/O (FT_fa); alternate functions LPTIM1_ETR, I2C1_SCL, I2C4_SCL, USART1_TX, CAN1_TX, TSC_G2_IO3, SAI1_FS_B, TIM16_CH1N, EVENTOUT; additional function COMP2_INP."
      },
      {
        "number": "D4",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground (VSS) pin of the digital supply domain."
      },
      {
        "number": "D5",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground (VSS) pin of the digital supply domain."
      },
      {
        "number": "D6",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground (VSS) pin of the digital supply domain."
      },
      {
        "number": "D7",
        "name": "PA8",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions MCO, TIM1_CH1, DFSDM1_CKIN1, USART1_CK, SAI1_SCK_A, LPTIM2_OUT, EVENTOUT."
      },
      {
        "number": "D8",
        "name": "PC9",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions TIM3_CH4, TSC_G4_IO4, SDMMC1_D1, EVENTOUT."
      },
      {
        "number": "E1",
        "name": "NRST",
        "type": "bidirectional",
        "description": "Bidirectional reset pin with embedded weak pull-up resistor."
      },
      {
        "number": "E2",
        "name": "PC1",
        "type": "bidirectional",
        "description": "5 V-tolerant, analog-switch I/O (FT_fa); alternate functions TRACED0, LPTIM1_OUT, I2C4_SDA, I2C3_SDA, LPUART1_TX, EVENTOUT; additional function ADC1_IN2."
      },
      {
        "number": "E3",
        "name": "PC0",
        "type": "bidirectional",
        "description": "5 V-tolerant, analog-switch I/O (FT_fa); alternate functions LPTIM1_IN1, I2C4_SCL, I2C3_SCL, LPUART1_RX, LPTIM2_IN1, EVENTOUT; additional function ADC1_IN1."
      },
      {
        "number": "E4",
        "name": "VDD",
        "type": "power_in",
        "description": "Main digital supply pin, specified for VDD from 1.71 V to 3.6 V."
      },
      {
        "number": "E5",
        "name": "VDD",
        "type": "power_in",
        "description": "Main digital supply pin, specified for VDD from 1.71 V to 3.6 V."
      },
      {
        "number": "E6",
        "name": "VDD",
        "type": "power_in",
        "description": "Main digital supply pin, specified for VDD from 1.71 V to 3.6 V."
      },
      {
        "number": "E7",
        "name": "PC7",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions TIM3_CH2, DFSDM1_DATIN3, TSC_G4_IO2, SDMMC1_D7, EVENTOUT."
      },
      {
        "number": "E8",
        "name": "PC8",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions TIM3_CH3, TSC_G4_IO3, SDMMC1_D0, EVENTOUT."
      },
      {
        "number": "F1",
        "name": "VSSA/VREF-",
        "type": "power_in",
        "description": "Analog ground pin, which is also the negative reference voltage VREF- on this package."
      },
      {
        "number": "F2",
        "name": "PC2",
        "type": "bidirectional",
        "description": "5 V-tolerant, analog-switch I/O (FT_a); alternate functions LPTIM1_IN2, SPI2_MISO, DFSDM1_CKOUT, EVENTOUT; additional function ADC1_IN3."
      },
      {
        "number": "F3",
        "name": "PA2",
        "type": "bidirectional",
        "description": "5 V-tolerant, analog-switch I/O (FT_a); alternate functions TIM2_CH3, USART2_TX, LPUART1_TX, QUADSPI_BK1_NCS, COMP2_OUT, TIM15_CH1, EVENTOUT; additional functions COMP2_INM, ADC1_IN7, WKUP4, LSCO."
      },
      {
        "number": "F4",
        "name": "PA5",
        "type": "bidirectional",
        "description": "3.6 V-tolerant (TT_a) I/O; alternate functions TIM2_CH1, TIM2_ETR, SPI1_SCK, DFSDM1_CKOUT, LPTIM2_ETR, EVENTOUT; additional functions COMP1_INM, COMP2_INM, ADC1_IN10."
      },
      {
        "number": "F5",
        "name": "PB0",
        "type": "bidirectional",
        "description": "5 V-tolerant, analog-switch I/O (FT_a); alternate functions TIM1_CH2N, TIM3_CH3, SPI1_NSS, DFSDM1_CKIN0, USART3_CK, QUADSPI_BK1_IO1, COMP1_OUT, SAI1_EXTCLK, EVENTOUT; additional function ADC1_IN15."
      },
      {
        "number": "F6",
        "name": "PC6",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions TIM3_CH1, DFSDM1_CKIN3, TSC_G4_IO1, SDMMC1_D6, EVENTOUT."
      },
      {
        "number": "F7",
        "name": "PB15",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions RTC_REFIN, TIM1_CH3N, SPI2_MOSI, DFSDM1_CKIN2, TSC_G1_IO4, SAI1_SD_A, TIM15_CH2, EVENTOUT."
      },
      {
        "number": "F8",
        "name": "PB14",
        "type": "bidirectional",
        "description": "5 V-tolerant, Fm+ capable (FT_f) I/O; alternate functions TIM1_CH2N, I2C2_SDA, SPI2_MISO, DFSDM1_DATIN2, USART3_RTS_DE, TSC_G1_IO3, SAI1_MCLK_A, TIM15_CH1, EVENTOUT."
      },
      {
        "number": "G1",
        "name": "PC3",
        "type": "bidirectional",
        "description": "5 V-tolerant, analog-switch I/O (FT_a); alternate functions LPTIM1_ETR, SPI2_MOSI, SAI1_SD_A, LPTIM2_ETR, EVENTOUT; additional function ADC1_IN4."
      },
      {
        "number": "G2",
        "name": "PA0",
        "type": "bidirectional",
        "description": "5 V-tolerant, analog-switch I/O (FT_a); alternate functions TIM2_CH1, USART2_CTS, UART4_TX, COMP1_OUT, SAI1_EXTCLK, TIM2_ETR, EVENTOUT; additional functions OPAMP1_VINP, COMP1_INM, ADC1_IN5, RTC_TAMP2, WKUP1."
      },
      {
        "number": "G3",
        "name": "PA3",
        "type": "bidirectional",
        "description": "3.6 V-tolerant, analog-switch I/O (TT_a); alternate functions TIM2_CH4, USART2_RX, LPUART1_RX, QUADSPI_CLK, SAI1_MCLK_A, TIM15_CH2, EVENTOUT; additional functions OPAMP1_VOUT, COMP2_INP, ADC1_IN8."
      },
      {
        "number": "G4",
        "name": "PA6",
        "type": "bidirectional",
        "description": "5 V-tolerant, analog-switch I/O (FT_a); alternate functions TIM1_BKIN, TIM3_CH1, SPI1_MISO, COMP1_OUT, USART3_CTS, LPUART1_CTS, QUADSPI_BK1_IO3, TIM1_BKIN_COMP2, TIM16_CH1, EVENTOUT; additional function ADC1_IN11."
      },
      {
        "number": "G5",
        "name": "PB1",
        "type": "bidirectional",
        "description": "5 V-tolerant, analog-switch I/O (FT_a); alternate functions TIM1_CH3N, TIM3_CH4, DFSDM1_DATIN0, USART3_RTS_DE, LPUART1_RTS_DE, QUADSPI_BK1_IO0, LPTIM2_IN1, EVENTOUT; additional functions COMP1_INM, ADC1_IN16."
      },
      {
        "number": "G6",
        "name": "PB2",
        "type": "bidirectional",
        "description": "5 V-tolerant, analog-switch I/O (FT_a); alternate functions RTC_OUT, LPTIM1_OUT, I2C3_SMBA, DFSDM1_CKIN0, EVENTOUT; additional function COMP1_INP."
      },
      {
        "number": "G7",
        "name": "PB10",
        "type": "bidirectional",
        "description": "5 V-tolerant, Fm+ capable (FT_f) I/O; alternate functions TIM2_CH3, I2C4_SCL, I2C2_SCL, SPI2_SCK, USART3_TX, LPUART1_RX, TSC_SYNC, QUADSPI_CLK, COMP1_OUT, SAI1_SCK_A, EVENTOUT."
      },
      {
        "number": "G8",
        "name": "PB13",
        "type": "bidirectional",
        "description": "5 V-tolerant, Fm+ capable (FT_f) I/O; alternate functions TIM1_CH1N, I2C2_SCL, SPI2_SCK, DFSDM1_CKIN1, USART3_CTS, LPUART1_CTS, TSC_G1_IO2, CAN1_TX, SAI1_SCK_A, TIM15_CH1N, EVENTOUT."
      },
      {
        "number": "H1",
        "name": "VDDA/VREF+",
        "type": "power_in",
        "description": "Analog supply pin, which is also the positive reference voltage VREF+ on this package."
      },
      {
        "number": "H2",
        "name": "PA1",
        "type": "bidirectional",
        "description": "5 V-tolerant, analog-switch I/O (FT_a); alternate functions TIM2_CH2, I2C1_SMBA, SPI1_SCK, USART2_RTS_DE, UART4_RX, TIM15_CH1N, EVENTOUT; additional functions OPAMP1_VINM, COMP1_INP, ADC1_IN6."
      },
      {
        "number": "H3",
        "name": "PA4",
        "type": "bidirectional",
        "description": "3.6 V-tolerant (TT_a) I/O; alternate functions SPI1_NSS, SPI3_NSS, USART2_CK, SAI1_FS_B, LPTIM2_OUT, EVENTOUT; additional functions COMP1_INM, COMP2_INM, ADC1_IN9, DAC1_OUT1."
      },
      {
        "number": "H4",
        "name": "PA7",
        "type": "bidirectional",
        "description": "5 V-tolerant, Fm+ capable, analog-switch I/O (FT_fa); alternate functions TIM1_CH1N, TIM3_CH2, I2C3_SCL, SPI1_MOSI, DFSDM1_DATIN0, QUADSPI_BK1_IO2, COMP2_OUT, EVENTOUT; additional function ADC1_IN12."
      },
      {
        "number": "H5",
        "name": "PC4",
        "type": "bidirectional",
        "description": "5 V-tolerant, analog-switch I/O (FT_a); alternate functions USART3_TX and EVENTOUT; additional function COMP1_INM and ADC1_IN13."
      },
      {
        "number": "H6",
        "name": "PC5",
        "type": "bidirectional",
        "description": "5 V-tolerant, analog-switch I/O (FT_a); alternate functions USART3_RX and EVENTOUT; additional functions COMP1_INP, ADC1_IN14 and WKUP5."
      },
      {
        "number": "H7",
        "name": "PB11",
        "type": "bidirectional",
        "description": "5 V-tolerant, Fm+ capable (FT_f) I/O; alternate functions TIM2_CH4, I2C4_SDA, I2C2_SDA, USART3_RX, LPUART1_TX, QUADSPI_BK1_NCS, COMP2_OUT, EVENTOUT."
      },
      {
        "number": "H8",
        "name": "PB12",
        "type": "bidirectional",
        "description": "5 V-tolerant (FT) I/O; alternate functions TIM1_BKIN, TIM1_BKIN_COMP2, I2C2_SMBA, SPI2_NSS, DFSDM1_DATIN1, USART3_CK, LPUART1_RTS_DE, TSC_G1_IO1, CAN1_RX, SAI1_FS_A, TIM15_BKIN, EVENTOUT."
      }
    ],
    "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: Package selection: STM32L451REI6 decodes to 64 pins (R), UFBGA package (I), 512 KB Flash (E) per Tab; Pins absent from UFBGA64 (table shows '-' for this package) and therefore not listed: PE0-PE15, PD0,; Pin types: the datasheet lists NRST as 'I/O RST' and PH3-BOOT0 as 'I/O' with no I/O structure, and t"
        ],
        "pages_sent": 77,
        "cost_usd": 0.3629,
        "at": "2026-10-11T23:34:14"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588951779437891584",
        "pages": 207,
        "sha256": "aa4890e697f5f52e",
        "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"
    },
    "models_3d": [
      {
        "file": "stm32l451rei6.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.756
        ],
        "zmin_mm": -0.006,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2f49e811f614ad2ee15508cecac786db8987d46925c72898fe5072a5814fff1e",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "stm32l451rei6-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5.0,
          5.0,
          0.756
        ],
        "zmin_mm": -0.006,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "11a20ee84c76a7778b945b310fd4a8f532114515cb8b5d934e4f0dd87cdf2770",
        "checked": "2026-10-11",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}