AC78406LGLA

{
  "slug": "ac78406lgla",
  "version": "0.1.0",
  "type": "component",
  "description": "AutoChips Microcontroller Units (MCUs/MPUs/SOCs), LQFP-100(14x14). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "single chip microcomputer-microcontroller",
    "ac78406lgla",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ac78406lgla.kicad_sym",
    "ac78406lgla.kicad_mod",
    "ac78406lgla.glb",
    "ac78406lgla.step",
    "ac78406lgla.lbr",
    "docs/hero.png",
    "docs/ac78406lgla-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "ac78406lgla-hero.glb",
    "ac78406lgla-hero.overlay.json",
    "ac78406lgla-etched.glb"
  ],
  "component": {
    "mpn": "AC78406LGLA",
    "manufacturer": "AutoChips",
    "package": "LQFP-100(14x14)",
    "pin_count": 100,
    "category": "Single Chip Microcomputer/Microcontroller",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/873cafd21d8abecb9c3e309bf3a491ca.pdf",
    "parts": {
      "symbol": "ac78406lgla.kicad_sym",
      "footprint": "ac78406lgla.kicad_mod",
      "model_3d": "ac78406lgla-hero.glb",
      "model_3d_plain": "ac78406lgla-etched.glb",
      "model_3d_step": "ac78406lgla-etched.step",
      "model_3d_step_plain": "ac78406lgla.step",
      "lbr": "ac78406lgla.lbr"
    },
    "distributor_links": {
      "lcsc": "C6800684"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T09:06:54Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PE16",
        "type": "bidirectional",
        "description": "GPIO pin muxable to UART1_RTS, SPI2_SIN, PWM2_CH7, PWM4_FLT0, EIO_D3 and TRGMUX_OUT7."
      },
      {
        "number": "2",
        "name": "PE15",
        "type": "bidirectional",
        "description": "GPIO pin muxable to UART1_CTS, SPI2_SCK, PWM2_CH6, PWM4_FLT1, EIO_D2 and TRGMUX_OUT6."
      },
      {
        "number": "3",
        "name": "PD1",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM0_CH3, SPI1_SIN, PWM2_CH1, EIO_D1 and TRGMUX_OUT2."
      },
      {
        "number": "4",
        "name": "PD0",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM0_CH2, SPI1_SCK, PWM2_CH0, EIO_D0 and TRGMUX_OUT1."
      },
      {
        "number": "5",
        "name": "PE11",
        "type": "bidirectional",
        "description": "GPIO pin muxable to SPI2_CS0, PCT0_ALT1, PWM2_CH5, EIO_D5 and TRGMUX_OUT5."
      },
      {
        "number": "6",
        "name": "PE10",
        "type": "bidirectional",
        "description": "GPIO pin muxable to CLKOUT, SPI2_CS1, PWM2_CH4, CAN0_STB, EIO_D4 and TRGMUX_OUT4."
      },
      {
        "number": "7",
        "name": "PE13",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM4_CH5, SPI2_CS2 and PWM2_FLT0."
      },
      {
        "number": "8",
        "name": "PE5",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM_CLK2, PWM2_CH0, PWM2_CH3, CAN0_TX, EIO_D7 and EWDG_IN."
      },
      {
        "number": "9",
        "name": "PE4",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM2_CH1, PWM2_CH2, CAN0_RX, EIO_D6 and EWDG_OUT_b."
      },
      {
        "number": "10",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin, operating range 2.7 V to 5.5 V (absolute max 5.5 V); needs a 0.1 uF X7R decoupling capacitor close to the pin."
      },
      {
        "number": "11",
        "name": "VDDA",
        "type": "power_in",
        "description": "Analog supply pin that must be tied on the board to the same supply as VDDx (within VDD ±0.1 V)."
      },
      {
        "number": "12",
        "name": "VREFH",
        "type": "power_in",
        "description": "Reference high voltage pin (ADC reference)."
      },
      {
        "number": "13",
        "name": "VREFL",
        "type": "power_in",
        "description": "Reference low voltage pin (ADC reference)."
      },
      {
        "number": "14",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "15",
        "name": "PB7",
        "type": "bidirectional",
        "description": "GPIO pin whose default function is HSE_IN (4-30 MHz crystal input, or external clock input up to 50 MHz), also I2C0_SCL."
      },
      {
        "number": "16",
        "name": "PB6",
        "type": "bidirectional",
        "description": "GPIO pin whose default function is HSE_OUT (crystal oscillator output), also I2C0_SDA."
      },
      {
        "number": "17",
        "name": "PE14",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM0_FLT1 and PWM2_FLT1."
      },
      {
        "number": "18",
        "name": "PE3",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM0_FLT0, UART2_RTS, PWM2_FLT0, CAN3_TX, TRGMUX_IN6 and ACMP0_OUT."
      },
      {
        "number": "19",
        "name": "PE12",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM0_FLT3, UART2_TX, PWM5_FLT0 and CAN3_RX."
      },
      {
        "number": "20",
        "name": "PD17",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM0_FLT2, UART2_RX, PWM5_FLT1 and CAN3_STB."
      },
      {
        "number": "21",
        "name": "PD16",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM0_CH1, SPI0_SIN and ACMP0_RRT."
      },
      {
        "number": "22",
        "name": "PD15",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM0_CH0 and SPI0_SCK."
      },
      {
        "number": "23",
        "name": "PE9",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM0_CH7 and UART2_CTS."
      },
      {
        "number": "24",
        "name": "PD14",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM2_CH5, UART1_TX and CLKOUT."
      },
      {
        "number": "25",
        "name": "PD13",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM2_CH4, UART1_RX and RTC_CLKOUT."
      },
      {
        "number": "26",
        "name": "PE8",
        "type": "bidirectional",
        "description": "GPIO pin with ACMP0_IN3 analog input, also PWM0_CH6 and CAN0_STB."
      },
      {
        "number": "27",
        "name": "PB5",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM0_CH5, SPI0_CS1, SPI0_CS0, CLKOUT and TRGMUX_IN0."
      },
      {
        "number": "28",
        "name": "PB4",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM0_CH4, SPI0_SOUT and TRGMUX_IN1."
      },
      {
        "number": "29",
        "name": "PC3",
        "type": "bidirectional",
        "description": "GPIO pin with ADC0_IN11/ACMP0_IN4 analog inputs, also PWM0_CH3, CAN0_TX and UART0_TX."
      },
      {
        "number": "30",
        "name": "PC2",
        "type": "bidirectional",
        "description": "GPIO pin with ADC0_IN10/ACMP0_IN5 analog inputs, also PWM0_CH2, CAN0_RX and UART0_RX."
      },
      {
        "number": "31",
        "name": "PD7",
        "type": "bidirectional",
        "description": "GPIO pin with ACMP0_IN6 analog input, also UART2_TX and PWM2_FLT3."
      },
      {
        "number": "32",
        "name": "PD6",
        "type": "bidirectional",
        "description": "GPIO pin with ACMP0_IN7 analog input, also UART2_RX and PWM2_FLT2."
      },
      {
        "number": "33",
        "name": "PD5",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM2_CH3, PCT0_ALT2, PWM2_FLT1 and TRGMUX_IN7."
      },
      {
        "number": "34",
        "name": "PD12",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM2_CH2 and UART2_RTS."
      },
      {
        "number": "35",
        "name": "PD11",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM2_CH1, PWM2_CH0 and UART2_CTS."
      },
      {
        "number": "36",
        "name": "PD10",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM2_CH0, PWM2_CH1 and CLKOUT."
      },
      {
        "number": "37",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "38",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin, operating range 2.7 V to 5.5 V; needs a 0.1 uF X7R decoupling capacitor close to the pin."
      },
      {
        "number": "39",
        "name": "PC1",
        "type": "bidirectional",
        "description": "GPIO pin with ADC0_IN9 analog input, also PWM0_CH1, SPI2_SOUT and PWM1_CH7."
      },
      {
        "number": "40",
        "name": "PC0",
        "type": "bidirectional",
        "description": "GPIO pin with ADC0_IN8 analog input, also PWM0_CH0, SPI2_SIN and PWM1_CH6."
      },
      {
        "number": "41",
        "name": "PD9",
        "type": "bidirectional",
        "description": "GPIO pin muxable to EIO_D0, PWM2_FLT3 and PWM1_CH5."
      },
      {
        "number": "42",
        "name": "PD8",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM2_FLT2, EIO_D1 and PWM1_CH4."
      },
      {
        "number": "43",
        "name": "PC17",
        "type": "bidirectional",
        "description": "GPIO pin with ADC0_IN15 analog input, also PWM1_FLT3, CAN2_TX and UART3_TX."
      },
      {
        "number": "44",
        "name": "PC16",
        "type": "bidirectional",
        "description": "GPIO pin with ADC0_IN14 analog input, also PWM1_FLT2, CAN2_RX and UART3_RX."
      },
      {
        "number": "45",
        "name": "PC15",
        "type": "bidirectional",
        "description": "GPIO pin with ADC0_IN13 analog input, also PWM1_CH3, SPI2_SCK, CAN2_STB and TRGMUX_IN8."
      },
      {
        "number": "46",
        "name": "PC14",
        "type": "bidirectional",
        "description": "GPIO pin with ADC0_IN12 analog input, also PWM1_CH2, SPI2_CS0 and TRGMUX_IN9."
      },
      {
        "number": "47",
        "name": "PB3",
        "type": "bidirectional",
        "description": "GPIO port pin; alternate functions not available in the supplied pages (name taken from the package drawing)."
      },
      {
        "number": "48",
        "name": "PB2",
        "type": "bidirectional",
        "description": "GPIO port pin; alternate functions not available in the supplied pages (name taken from the package drawing)."
      },
      {
        "number": "49",
        "name": "PC13",
        "type": "bidirectional",
        "description": "GPIO port pin; alternate functions not available in the supplied pages (name taken from the package drawing)."
      },
      {
        "number": "50",
        "name": "PC12",
        "type": "bidirectional",
        "description": "GPIO port pin; alternate functions not available in the supplied pages (name taken from the package drawing)."
      },
      {
        "number": "51",
        "name": "PC11",
        "type": "bidirectional",
        "description": "GPIO port pin; alternate functions not available in the supplied pages (name taken from the package drawing)."
      },
      {
        "number": "52",
        "name": "PC10",
        "type": "bidirectional",
        "description": "GPIO port pin; alternate functions not available in the supplied pages (name taken from the package drawing)."
      },
      {
        "number": "53",
        "name": "PB1",
        "type": "bidirectional",
        "description": "GPIO port pin; alternate functions not available in the supplied pages (name taken from the package drawing)."
      },
      {
        "number": "54",
        "name": "PB0",
        "type": "bidirectional",
        "description": "GPIO port pin; alternate functions not available in the supplied pages (name taken from the package drawing)."
      },
      {
        "number": "55",
        "name": "PC9",
        "type": "bidirectional",
        "description": "GPIO port pin; alternate functions not available in the supplied pages (name taken from the package drawing)."
      },
      {
        "number": "56",
        "name": "PC8",
        "type": "bidirectional",
        "description": "GPIO port pin; alternate functions not available in the supplied pages (name taken from the package drawing)."
      },
      {
        "number": "57",
        "name": "PA7",
        "type": "bidirectional",
        "description": "GPIO port pin; alternate functions not available in the supplied pages (name taken from the package drawing)."
      },
      {
        "number": "58",
        "name": "PA6",
        "type": "bidirectional",
        "description": "GPIO port pin; alternate functions not available in the supplied pages (name taken from the package drawing)."
      },
      {
        "number": "59",
        "name": "PE7",
        "type": "bidirectional",
        "description": "GPIO port pin; alternate functions not available in the supplied pages (name taken from the package drawing)."
      },
      {
        "number": "60",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin (position taken from the package drawing)."
      },
      {
        "number": "61",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin, operating range 2.7 V to 5.5 V (position taken from the package drawing)."
      },
      {
        "number": "62",
        "name": "PA17",
        "type": "bidirectional",
        "description": "GPIO port pin; alternate functions not available in the supplied pages (name taken from the package drawing)."
      },
      {
        "number": "63",
        "name": "PB17",
        "type": "bidirectional",
        "description": "GPIO port pin; alternate functions not available in the supplied pages (name taken from the package drawing)."
      },
      {
        "number": "64",
        "name": "PB16",
        "type": "bidirectional",
        "description": "GPIO port pin; alternate functions not available in the supplied pages (name taken from the package drawing)."
      },
      {
        "number": "65",
        "name": "PB15",
        "type": "bidirectional",
        "description": "GPIO port pin; alternate functions not available in the supplied pages (name taken from the package drawing)."
      },
      {
        "number": "66",
        "name": "PB14",
        "type": "bidirectional",
        "description": "GPIO pin with ADC1_IN9 / ADC0_INTERLEAVE1 analog function, also PWM0_CH2 and SPI1_SCK."
      },
      {
        "number": "67",
        "name": "PB13",
        "type": "bidirectional",
        "description": "GPIO pin with ADC1_IN8 / ADC0_INTERLEAVE0 analog function, also PWM0_CH1, PWM3_FLT1 and CAN2_TX."
      },
      {
        "number": "68",
        "name": "PB12",
        "type": "bidirectional",
        "description": "GPIO pin with ADC1_IN7 analog input, also PWM0_CH0, PWM3_FLT2 and CAN2_RX."
      },
      {
        "number": "69",
        "name": "PD4",
        "type": "bidirectional",
        "description": "GPIO pin with ADC1_IN6 analog input, also PWM0_FLT3, PWM3_FLT3 and CAN2_STB."
      },
      {
        "number": "70",
        "name": "PD3",
        "type": "bidirectional",
        "description": "GPIO pin with ADC1_IN3 analog input, also PWM3_CH5, SPI1_CS0, EIO_D5, EIO_D7, TRGMUX_IN4 and NMI_b."
      },
      {
        "number": "71",
        "name": "PD2",
        "type": "bidirectional",
        "description": "GPIO pin with ADC1_IN2 analog input, also PWM3_CH4, SPI1_SOUT, EIO_D4, EIO_D6 and TRGMUX_IN5."
      },
      {
        "number": "72",
        "name": "PA3",
        "type": "bidirectional",
        "description": "GPIO pin with ADC1_IN1 analog input, also PWM3_CH1, I2C0_SCL, EWDG_IN, EIO_D5 and UART0_TX."
      },
      {
        "number": "73",
        "name": "PA2",
        "type": "bidirectional",
        "description": "GPIO pin with ADC1_IN0 analog input, also PWM3_CH0, I2C0_SDA, EWDG_OUT_b, EIO_D4 and UART0_RX."
      },
      {
        "number": "74",
        "name": "PB11",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM3_CH3."
      },
      {
        "number": "75",
        "name": "PB10",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM3_CH2, I2C0_SDA and UART3_TX."
      },
      {
        "number": "76",
        "name": "PB9",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM3_CH1, I2C0_SCL and UART3_RX."
      },
      {
        "number": "77",
        "name": "PB8",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM3_CH0."
      },
      {
        "number": "78",
        "name": "PA1",
        "type": "bidirectional",
        "description": "GPIO pin with ADC0_IN1 / ACMP0_IN1 analog inputs, also PWM1_CH1, PWM2_CH2, EIO_D3, PWM1_CH0, UART0_RTS and TRGMUX_OUT0."
      },
      {
        "number": "79",
        "name": "PA0",
        "type": "bidirectional",
        "description": "GPIO pin with ADC0_IN0 / ACMP0_IN0 analog inputs, also PWM2_CH1, EIO_D2, PWM2_CH0, UART0_CTS and TRGMUX_OUT3."
      },
      {
        "number": "80",
        "name": "PC7",
        "type": "bidirectional",
        "description": "GPIO pin with ADC1_IN5 analog input, also UART1_TX, CAN1_TX, PWM3_CH3 and PWM1_CH0."
      },
      {
        "number": "81",
        "name": "PC6",
        "type": "bidirectional",
        "description": "GPIO pin with ADC1_IN4 analog input, also UART1_RX, CAN1_RX, PWM3_CH2 and PWM1_CH1."
      },
      {
        "number": "82",
        "name": "PA16",
        "type": "bidirectional",
        "description": "GPIO pin with ADC1_IN13 analog input, also PWM1_CH3 and SPI1_CS2."
      },
      {
        "number": "83",
        "name": "PA15",
        "type": "bidirectional",
        "description": "GPIO pin with ADC1_IN12 analog input, also PWM1_CH2, SPI0_CS3 and SPI2_CS3."
      },
      {
        "number": "84",
        "name": "PE6",
        "type": "bidirectional",
        "description": "GPIO pin with ADC1_IN11 analog input, also SPI0_CS2, PWM3_CH7, CAN1_STB and UART1_RTS."
      },
      {
        "number": "85",
        "name": "PE2",
        "type": "bidirectional",
        "description": "GPIO pin with ADC1_IN10 analog input, also SPI0_SOUT, PCT0_ALT3, PWM3_CH6 and UART1_CTS."
      },
      {
        "number": "86",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin."
      },
      {
        "number": "87",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply pin, operating range 2.7 V to 5.5 V; needs a 0.1 uF X7R decoupling capacitor close to the pin."
      },
      {
        "number": "88",
        "name": "PA14",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM0_FLT0, PWM3_FLT1, EWDG_IN and PWM1_FLT0."
      },
      {
        "number": "89",
        "name": "PA13",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM1_CH7, CAN1_TX and PWM2_CH0."
      },
      {
        "number": "90",
        "name": "PA12",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM1_CH6, CAN1_RX and PWM2_CH1."
      },
      {
        "number": "91",
        "name": "PA11",
        "type": "bidirectional",
        "description": "GPIO pin muxable to PWM1_CH5, CAN1_STB, EIO_D1 and ACMP0_RRT."
      },
      {
        "number": "92",
        "name": "PA10",
        "type": "bidirectional",
        "description": "GPIO pin whose default function is JTAG_TDO, also PWM1_CH4 and EIO_D0."
      },
      {
        "number": "93",
        "name": "PE1",
        "type": "bidirectional",
        "description": "GPIO pin muxable to SPI0_SIN, SPI1_CS0 and PWM1_FLT1."
      },
      {
        "number": "94",
        "name": "PE0",
        "type": "bidirectional",
        "description": "GPIO pin muxable to SPI0_SCK, PWM_CLK1, SPI1_SOUT and PWM1_FLT2."
      },
      {
        "number": "95",
        "name": "PC5",
        "type": "bidirectional",
        "description": "GPIO pin whose default function is JTAG_TDI, also PWM2_CH0, RTC_CLKOUT and PWM2_CH1."
      },
      {
        "number": "96",
        "name": "PC4",
        "type": "bidirectional",
        "description": "GPIO pin whose default function is JTAG_TCLK (SWD clock), also ACMP0_IN2, PWM1_CH0, RTC_CLKOUT, EWDG_IN and PWM1_CH1."
      },
      {
        "number": "97",
        "name": "PA5",
        "type": "bidirectional",
        "description": "GPIO pin whose default function is RESET_b (external reset), also PWM_CLK1."
      },
      {
        "number": "98",
        "name": "PA4",
        "type": "bidirectional",
        "description": "GPIO pin whose default function is JTAG_TMS (SWD data), also ACMP0_OUT and EWDG_OUT_b."
      },
      {
        "number": "99",
        "name": "PA9",
        "type": "bidirectional",
        "description": "GPIO pin muxable to UART2_TX, SPI2_CS0, EIO_D7, PWM3_FLT2, PWM1_FLT3 and PWM4_FLT0."
      },
      {
        "number": "100",
        "name": "PA8",
        "type": "bidirectional",
        "description": "GPIO pin muxable to UART2_RX, SPI2_SOUT, EIO_D6, PWM3_FLT3 and PWM4_FLT1."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Page 50 of the datasheet (rows of table 9-1 covering 100-pin positions 47-65) was not supplied. Name; Pin types for multiplexed GPIO pins are set to bidirectional. Pins with a dedicated default function; VREFH and VREFL are set to power_in. The datasheet text gives no description for them.",
          "6/100 pins cited to the wrong page (name found elsewhere): ['47:PB3@p54', '48:PB2@p54', '49:PC13@p54', '50:PC12@p54']"
        ],
        "pages_sent": 41,
        "cost_usd": 0.5221,
        "at": "2026-10-23T09:06:11"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/873cafd21d8abecb9c3e309bf3a491ca.pdf",
        "pages": 55,
        "sha256": "720d8820ca2ac87b",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 100,
        "described": 100,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "ac78406lgla.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          16.0,
          16.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "51720097260ffba41c3062f85f67623721102fa535901c47cb555a1f444feeb3",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ac78406lgla-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          16.0,
          16.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a66d6a041f84773703438c4a12234cb9a3e793d31cb097d50c6932e59f0ea9cc",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}