TCA4307DGKR

{
  "schema_version": 1,
  "type": "component",
  "slug": "tca4307dgkr",
  "title": "TCA4307DGKR",
  "brief": "Texas Instruments Signal Buffers, Repeaters, Splitters, MSOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "comm-uart",
    "tca4307dgkr"
  ],
  "component": {
    "mpn": "TCA4307DGKR",
    "manufacturer": "Texas Instruments",
    "package": "MSOP-8",
    "pin_count": 8,
    "category": "Comm/UART",
    "subcategory": "Signal Buffers, Repeaters, Splitters",
    "datasheet": "https://www.ti.com/lit/ds/symlink/tca4307.pdf",
    "parts": {
      "symbol": "tca4307dgkr.kicad_sym",
      "footprint": "tca4307dgkr.kicad_mod",
      "model_3d": "tca4307dgkr-etched.glb",
      "model_3d_plain": "tca4307dgkr.glb",
      "model_3d_step": "tca4307dgkr-etched.step",
      "model_3d_step_plain": "tca4307dgkr.step",
      "lbr": "tca4307dgkr.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Active-high chip enable. When low, the device enters low-current mode, disables rise-time accelerators and pre-charge, drives READY low, and isolates SDAIN/SCLIN from SDAOUT/SCLOUT. Tie to VCC for normal operation if not used. VIH >= 0.7*VCC, VIL <= 0.3*VCC."
      },
      {
        "number": "2",
        "name": "SCLOUT",
        "type": "bidirectional",
        "description": "Serial clock output to the card-side I2C bus. Open-drain, requires a pull-up resistor. Isolated from SCLIN until EN is high and start-up is complete."
      },
      {
        "number": "3",
        "name": "SCLIN",
        "type": "bidirectional",
        "description": "Serial clock input from the backplane-side I2C bus. Open-drain, requires a pull-up resistor. Pre-charged to 1 V during insertion to minimize glitching."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference."
      },
      {
        "number": "5",
        "name": "READY",
        "type": "output",
        "description": "Open-drain connection flag / rise-time accelerator control. Low when EN is low or during start-up; goes high when EN is high, start-up is complete, and the two bus sides are connected. Connect a ~10 kOhm pull-up to VCC. IOL = 3 mA, VOL <= 0.4 V."
      },
      {
        "number": "6",
        "name": "SDAIN",
        "type": "bidirectional",
        "description": "Serial data input from the backplane-side I2C bus. Open-drain, requires a pull-up resistor. Pre-charged to 1 V during live insertion."
      },
      {
        "number": "7",
        "name": "SDAOUT",
        "type": "bidirectional",
        "description": "Serial data output to the card-side I2C bus. Open-drain, requires a pull-up resistor. Isolated from SDAIN until EN is high and start-up is complete."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Main input supply from the backplane, 2.3 V to 5.5 V. Sets the supply voltage for the backplane-side I2C devices and the internal pull-ups from SDAOUT/SCLOUT. Place a 0.1 uF bypass capacitor close to this pin."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/tca4307.pdf",
        "pages": 29,
        "sha256": "904278fd916371ef",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "tca4307dgkr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.9,
          3.0,
          0.95
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "847c4c5023fe1603fbd36900a5dcc4bd3901ba473f71d42c9a469f0236eaadf3",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tca4307dgkr-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": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5bc50858fecc6ece675e27823764090110748e25f81da452b0e7f3d84c856604",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "MSOP-8",
      "Category": "Comm/UART",
      "Pins": "8"
    }
  },
  "variants": [
    {
      "mpn": "TCA4307DGKR",
      "kind": "packaging"
    },
    {
      "mpn": "TCA4307DGKRDGKT",
      "kind": "packaging"
    },
    {
      "mpn": "TCA4307DGKRDRGR",
      "kind": "packaging"
    },
    {
      "mpn": "TCA4307DGKRDRGT",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tca4307dgkr"
  ],
  "discovery_pitch": "TCA4307DGKR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
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    "tca4307dgkr.glb",
    "tca4307dgkr.step",
    "tca4307dgkr.lbr",
    "docs/hero.png",
    "docs/tca4307dgkr-datasheet.pdf",
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    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T09:24:30.287Z"
}