TCA4311ADR

{
  "slug": "tca4311adr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments Signal Buffers, Repeaters, Splitters, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface",
    "tca4311adr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tca4311adr.kicad_sym",
    "tca4311adr.kicad_mod",
    "tca4311adr.glb",
    "tca4311adr.step",
    "tca4311adr.lbr",
    "docs/hero.png",
    "docs/tca4311adr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tca4311adr-hero.glb",
    "tca4311adr-hero.overlay.json"
  ],
  "component": {
    "mpn": "TCA4311ADR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "Signal Buffers, Repeaters, Splitters",
    "datasheet": "https://www.ti.com/lit/ds/symlink/tca4311a.pdf",
    "parts": {
      "symbol": "tca4311adr.kicad_sym",
      "footprint": "tca4311adr.kicad_mod",
      "model_3d": "tca4311adr-hero.glb",
      "model_3d_plain": "tca4311adr.glb",
      "model_3d_step": "tca4311adr-etched.step",
      "model_3d_step_plain": "tca4311adr.step",
      "lbr": "tca4311adr.lbr"
    },
    "distributor_links": {
      "lcsc": "C469843",
      "digikey": "296-30189-2-ND",
      "mouser": "595-TCA4311ADR"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T18:59:44Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-30189-2-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TCA4311ADR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "EN",
        "type": "input",
        "description": "Active-high chip enable: when EN is low the device enters a low-current mode (<1 µA) and isolates the two sides, and EN should be held high at VCC for normal operation, with VIH of 2 V minimum and VIL of 0.8 V maximum."
      },
      {
        "number": "2",
        "name": "SCLOUT",
        "type": "bidirectional",
        "description": "Serial clock output that connects to the SCL bus on the card side and is buffered from SCLIN, with open-drain I/O and a pull-up resistor required on this side."
      },
      {
        "number": "3",
        "name": "SCLIN",
        "type": "bidirectional",
        "description": "Serial clock input that connects to the SCL bus on the backplane side and is buffered to SCLOUT, with open-drain I/O and a pull-up resistor required on this side."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Supply ground for the device."
      },
      {
        "number": "5",
        "name": "READY",
        "type": "output",
        "description": "Open-drain connection flag and rise-time accelerator control that is low while EN is low or start-up is incomplete, goes high when the backplane and card sides are connected, and needs a 10-kΩ pull-up resistor to VCC."
      },
      {
        "number": "6",
        "name": "SDAIN",
        "type": "bidirectional",
        "description": "Serial data input that connects to the SDA bus on the backplane side and is buffered to SDAOUT, with open-drain I/O and a pull-up resistor required on this side."
      },
      {
        "number": "7",
        "name": "SDAOUT",
        "type": "bidirectional",
        "description": "Serial data output that connects to the SDA bus on the card side and is buffered from SDAIN, with open-drain I/O and a pull-up resistor required on this side."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage from the backplane, specified from 2.7 V to 5.5 V, with a bypass capacitor of at least 0.01 µF placed close to the pin."
      }
    ],
    "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: The datasheet labels these I2C pins as input or output (for example 'Serial clock output' and 'Seria; The datasheet text does not state an absolute maximum or recommended voltage range for the EN pin be"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0465,
        "at": "2026-10-08T18:59:18"
      },
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/tca4311a.pdf",
        "pages": 30,
        "sha256": "d01087e7243208db",
        "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": [
      {
        "file": "tca4311adr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tca4311adr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f028fd97fe8473de503a4933ca8a3577ec9419017b112b7c5a0da7b8aba51ef1",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}