TCA6424RGJR

{
  "slug": "tca6424rgjr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments I/O Expanders, UQFN-32(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip",
    "tca6424rgjr",
    "factory-2.0.0",
    "extractor-text"
  ],
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  "component": {
    "mpn": "TCA6424RGJR",
    "manufacturer": "Texas Instruments",
    "package": "UQFN-32(5x5)",
    "pin_count": 33,
    "category": "Communication Interface Chip",
    "subcategory": "I/O Expanders",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tca6424",
    "parts": {
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      "lbr": "tca6424rgjr.lbr"
    },
    "distributor_links": {
      "lcsc": "C3189292"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T18:27:37Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 871 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "P00",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P00 is configured as an input."
      },
      {
        "number": "2",
        "name": "P01",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P01 is configured as an input."
      },
      {
        "number": "3",
        "name": "P02",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P02 is configured as an input."
      },
      {
        "number": "4",
        "name": "P03",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P03 is configured as an input."
      },
      {
        "number": "5",
        "name": "P04",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P04 is configured as an input."
      },
      {
        "number": "6",
        "name": "P05",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P05 is configured as an input."
      },
      {
        "number": "7",
        "name": "P06",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P06 is configured as an input."
      },
      {
        "number": "8",
        "name": "P07",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P07 is configured as an input."
      },
      {
        "number": "9",
        "name": "P10",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P10 is configured as an input."
      },
      {
        "number": "10",
        "name": "P11",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P11 is configured as an input."
      },
      {
        "number": "11",
        "name": "P12",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P12 is configured as an input."
      },
      {
        "number": "12",
        "name": "P13",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P13 is configured as an input."
      },
      {
        "number": "13",
        "name": "P14",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P14 is configured as an input."
      },
      {
        "number": "14",
        "name": "P15",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P15 is configured as an input."
      },
      {
        "number": "15",
        "name": "P16",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P16 is configured as an input."
      },
      {
        "number": "16",
        "name": "P17",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P17 is configured as an input."
      },
      {
        "number": "17",
        "name": "P20",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P20 is configured as an input."
      },
      {
        "number": "18",
        "name": "P21",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P21 is configured as an input."
      },
      {
        "number": "19",
        "name": "P22",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P22 is configured as an input."
      },
      {
        "number": "20",
        "name": "P23",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P23 is configured as an input."
      },
      {
        "number": "21",
        "name": "P24",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P24 is configured as an input."
      },
      {
        "number": "22",
        "name": "P25",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P25 is configured as an input."
      },
      {
        "number": "23",
        "name": "P26",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P26 is configured as an input."
      },
      {
        "number": "24",
        "name": "P27",
        "type": "bidirectional",
        "description": "P-port input/output (push-pull design structure); at power on, P27 is configured as an input."
      },
      {
        "number": "25",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "26",
        "name": "ADDR",
        "type": "input",
        "description": "Address input; connect directly to VCCP or ground."
      },
      {
        "number": "27",
        "name": "VCCP",
        "type": "power_in",
        "description": "Supply voltage of TCA6424 for P port, 1.65 V to 5.5 V recommended."
      },
      {
        "number": "28",
        "name": "RESET",
        "type": "input",
        "description": "Active-low reset input; connect to VCCP through a pullup resistor if no active connection is used."
      },
      {
        "number": "29",
        "name": "SCL",
        "type": "input",
        "description": "Serial clock bus; connect to VCCI through a pullup resistor."
      },
      {
        "number": "30",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Serial data bus; connect to VCCI through a pullup resistor."
      },
      {
        "number": "31",
        "name": "VCCI",
        "type": "power_in",
        "description": "Supply voltage of I2C bus (1.65 V to 5.5 V); connect directly to the VCC of the external I2C master, provides voltage-level translation."
      },
      {
        "number": "32",
        "name": "INT",
        "type": "output",
        "description": "Open-drain interrupt output; connect to VCCI through a pullup resistor."
      },
      {
        "number": "33",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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: Pin types for SDA (bidirectional open-drain), INT (open-drain output) and ADDR are inferred from the; The datasheet pin table does not mention a thermal pad for the RGJ package; none was included.; Device is marked Not Recommended for New Designs (NRND)."
        ],
        "pages_sent": 8,
        "cost_usd": 0.1106,
        "at": "2026-10-23T18:27:22"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tca6424",
        "pages": 37,
        "sha256": "076b529753c2066c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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        "seat": "z = 0",
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        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
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}