BMI325

{
  "schema_version": 1,
  "type": "component",
  "slug": "bmi325",
  "title": "BMI325",
  "brief": "Bosch Sensortec Accelerometers, LGA-14(2.5x3). Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "sensor",
    "bmi325"
  ],
  "component": {
    "mpn": "BMI325",
    "manufacturer": "Bosch Sensortec",
    "package": "LGA-14(2.5x3)",
    "pin_count": 14,
    "category": "Sensor",
    "subcategory": "Accelerometers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/74e346f4d9cd71674f3a47ee5bcaf522.pdf",
    "parts": {
      "symbol": "bmi325.kicad_sym",
      "footprint": "bmi325.kicad_mod",
      "model_3d": "bmi325-etched.glb",
      "model_3d_plain": "bmi325.glb",
      "model_3d_step": "bmi325-etched.step",
      "model_3d_step_plain": "bmi325.step",
      "lbr": "bmi325.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "SDO",
        "type": "bidirectional",
        "description": "SPI 4-wire serial data output (SDO). In I²C mode, this pin selects I²C address bit-0 (tie to GND for the default I²C address). Should be left DNC in SPI 3-wire mode."
      },
      {
        "number": "2",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. Leave floating (do not connect)."
      },
      {
        "number": "3",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. Leave floating (do not connect)."
      },
      {
        "number": "4",
        "name": "INT1",
        "type": "bidirectional",
        "description": "Programmable interrupt pin 1. Used for motion-triggered interrupt output (data ready, tap, orientation, etc.); can be configured as push-pull/open-drain, active-high/low."
      },
      {
        "number": "5",
        "name": "VDDIO",
        "type": "power_in",
        "description": "Digital I/O supply voltage. Operating range 1.08 V ... 3.63 V. Independent from analog VDD. A 100 nF decoupling capacitor is recommended."
      },
      {
        "number": "6",
        "name": "GNDIO",
        "type": "power_in",
        "description": "Ground reference for the digital I/O supply (VDDIO) domain."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the digital and analog (VDD) domains."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "Main analog and digital supply voltage. Operating range 1.71 V ... 3.63 V. A 100 nF decoupling capacitor is recommended."
      },
      {
        "number": "9",
        "name": "INT2",
        "type": "bidirectional",
        "description": "Programmable interrupt pin 2. Second configurable motion/data-ready interrupt output."
      },
      {
        "number": "10",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. Leave floating (do not connect)."
      },
      {
        "number": "11",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect. Leave floating (do not connect)."
      },
      {
        "number": "12",
        "name": "CSB",
        "type": "input",
        "description": "Active-low chip select for SPI mode (4-wire or 3-wire). Must be tied to VDDIO to select I²C/I3C interface mode at startup."
      },
      {
        "number": "13",
        "name": "SCx",
        "type": "input",
        "description": "Serial clock input. Functions as SCK (SPI serial clock, up to 10 MHz) in SPI modes and as SCL (I²C/I3C serial clock, up to 1 MHz I²C Fm+ / 12.5 MHz I3C) in I²C/I3C mode."
      },
      {
        "number": "14",
        "name": "SDx",
        "type": "bidirectional",
        "description": "Serial data pin. SDI (SPI 4-wire input), SDIO (SPI 3-wire bidirectional data), or SDA (I²C/I3C bidirectional data)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/74e346f4d9cd71674f3a47ee5bcaf522.pdf",
        "pages": 239,
        "sha256": "f06c5864abdb2b53",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "bmi325.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          2.5,
          0.78
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "a441fc384db400c96db6affec2f9c22a5d76b0729e0f2fc46c53746be60b76ca",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bmi325-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          2.5,
          0.78
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4fe4f9290c91d9b0e253d45112a41425d8f3fbdefde3dca16f565cb9a89b2e06",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Bosch Sensortec",
      "Package": "LGA-14(2.5x3)",
      "Category": "Sensor",
      "Pins": "14"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "bmi325"
  ],
  "discovery_pitch": "BMI325 (Bosch Sensortec) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bmi325.kicad_sym",
    "bmi325.kicad_mod",
    "bmi325.glb",
    "bmi325.step",
    "bmi325.lbr",
    "docs/hero.png",
    "docs/bmi325-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "bmi325-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "BMI3250 273 017 029",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T17:59:42.389Z"
}