XW09A

{
  "schema_version": 1,
  "type": "component",
  "slug": "xw09a",
  "title": "XW09A",
  "brief": "Sam wing Touch Sensors, SOP-16. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "sensor",
    "xw09a"
  ],
  "component": {
    "mpn": "XW09A",
    "manufacturer": "Sam wing",
    "package": "SOP-16",
    "pin_count": 16,
    "category": "Sensor",
    "subcategory": "Touch Sensors",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f6625d9aefb787301f8c1776758ec192.pdf",
    "parts": {
      "symbol": "xw09a.kicad_sym",
      "footprint": "xw09a.kicad_mod",
      "model_3d": "xw09a-etched.glb",
      "model_3d_plain": "xw09a.glb",
      "model_3d_step": "xw09a-etched.step",
      "model_3d_step_plain": "xw09a.step",
      "lbr": "xw09a.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Power ground (0V) reference for the chip."
      },
      {
        "number": "2",
        "name": "C1",
        "type": "passive",
        "description": "Internal balance capacitor interface. Connect an external NPO capacitor (1nF-10nF range, 4.7nF recommended) between this pin and GND."
      },
      {
        "number": "3",
        "name": "CSEL",
        "type": "passive",
        "description": "Sensitivity adjustment capacitor interface. Connect an external capacitor (0-100pF) between this pin and GND; smaller capacitance yields higher sensitivity, and leaving it open gives maximum sensitivity."
      },
      {
        "number": "4",
        "name": "PAD0",
        "type": "input",
        "description": "Capacitive touch key input channel 0. Connect to a touch sensing pad (typ. 3-30mm square/round conductor) via a series 1k resistor; leave floating if unused."
      },
      {
        "number": "5",
        "name": "PAD1",
        "type": "input",
        "description": "Capacitive touch key input channel 1. Connect to a touch sensing pad via a series 1k resistor; leave floating if unused."
      },
      {
        "number": "6",
        "name": "PAD2",
        "type": "input",
        "description": "Capacitive touch key input channel 2. Connect to a touch sensing pad via a series 1k resistor; leave floating if unused."
      },
      {
        "number": "7",
        "name": "PAD3",
        "type": "input",
        "description": "Capacitive touch key input channel 3. Connect to a touch sensing pad via a series 1k resistor; leave floating if unused."
      },
      {
        "number": "8",
        "name": "PAD4",
        "type": "input",
        "description": "Capacitive touch key input channel 4. Connect to a touch sensing pad via a series 1k resistor; leave floating if unused."
      },
      {
        "number": "9",
        "name": "PAD5",
        "type": "input",
        "description": "Capacitive touch key input channel 5. Connect to a touch sensing pad via a series 1k resistor; leave floating if unused."
      },
      {
        "number": "10",
        "name": "PAD6",
        "type": "input",
        "description": "Capacitive touch key input channel 6. Connect to a touch sensing pad via a series 1k resistor; leave floating if unused."
      },
      {
        "number": "11",
        "name": "PAD7",
        "type": "input",
        "description": "Capacitive touch key input channel 7. Connect to a touch sensing pad via a series 1k resistor; leave floating if unused."
      },
      {
        "number": "12",
        "name": "PAD8",
        "type": "input",
        "description": "Capacitive touch key input channel 8. Connect to a touch sensing pad via a series 1k resistor; leave floating if unused."
      },
      {
        "number": "13",
        "name": "INT",
        "type": "output",
        "description": "Key-valid interrupt output (open-drain). Asserts low when a touch key is active; requires an external pull-up resistor (typ. 10k) to VDD."
      },
      {
        "number": "14",
        "name": "SCL",
        "type": "input",
        "description": "I2C serial clock line (up to 400 kbit/s). Requires an external pull-up resistor (typ. 10k) to VDD. XW09A operates as an I2C slave (read-only)."
      },
      {
        "number": "15",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C serial data line. Requires an external pull-up resistor (typ. 10k) to VDD. Slave address A[6:0]=0x40 (full 8-bit read address 0x81). Also used as a sleep-cancel input: pulling SDA low at least every 20s keeps the device out of sleep mode."
      },
      {
        "number": "16",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply input. Operating range 2.5V to 5.5V (absolute max 6.0V). Typical operating current 0.8mA @ 3.0V, 1.6mA @ 5.0V; sleep current ~90uA. Decouple with 100nF close to the pin."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/f6625d9aefb787301f8c1776758ec192.pdf",
        "pages": 6,
        "sha256": "6524ad9322c04543",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "xw09a.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "xw09a-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          9.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "0a7b6aed910a286cc72d18af6960e370afe12e8b10f9f9e7fe9b32a61a160dd2",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Sam wing",
      "Package": "SOP-16",
      "Category": "Sensor",
      "Pins": "16"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "xw09a"
  ],
  "discovery_pitch": "XW09A (Sam wing) 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",
    "xw09a.kicad_sym",
    "xw09a.kicad_mod",
    "xw09a.glb",
    "xw09a.step",
    "xw09a.lbr",
    "docs/hero.png",
    "docs/xw09a-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "xw09a-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "XW09ASOP16L",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T14:42:52.836Z"
}