TCA9555DBT

{
  "slug": "tca9555dbt",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments I/O Expanders, SSOP-24-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip-uart-485-232",
    "tca9555dbt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
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    "README.md",
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    "tca9555dbt.glb",
    "tca9555dbt.step",
    "tca9555dbt.lbr",
    "docs/hero.png",
    "docs/tca9555dbt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
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    "tca9555dbt-hero.overlay.json"
  ],
  "component": {
    "mpn": "TCA9555DBT",
    "manufacturer": "Texas Instruments",
    "package": "SSOP-24-208mil",
    "pin_count": 24,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "I/O Expanders",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tca9555",
    "parts": {
      "symbol": "tca9555dbt.kicad_sym",
      "footprint": "tca9555dbt.kicad_mod",
      "model_3d": "tca9555dbt-hero.glb",
      "model_3d_plain": "tca9555dbt.glb",
      "model_3d_step": "tca9555dbt-etched.step",
      "model_3d_step_plain": "tca9555dbt.step",
      "lbr": "tca9555dbt.lbr"
    },
    "distributor_links": {
      "lcsc": 1848120,
      "digikey": "296-TCA9555DBTTR-ND",
      "mouser": "595-TCA9555DBT"
    },
    "distributor_check": {
      "checked_at": "2026-10-06T17:24:16Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-TCA9555DBTTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TCA9555DBT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "INT",
        "type": "output",
        "description": "Interrupt output with open-drain structure; connect to VCC through pull-up resistor"
      },
      {
        "number": "2",
        "name": "A1",
        "type": "input",
        "description": "Address input 1; connect directly to VCC or ground"
      },
      {
        "number": "3",
        "name": "A2",
        "type": "input",
        "description": "Address input 2; connect directly to VCC or ground"
      },
      {
        "number": "4",
        "name": "P00",
        "type": "bidirectional",
        "description": "P-port I/O with push-pull design structure; configured as input at power-on"
      },
      {
        "number": "5",
        "name": "P01",
        "type": "bidirectional",
        "description": "P-port I/O with push-pull design structure; configured as input at power-on"
      },
      {
        "number": "6",
        "name": "P02",
        "type": "bidirectional",
        "description": "P-port I/O with push-pull design structure; configured as input at power-on"
      },
      {
        "number": "7",
        "name": "P03",
        "type": "bidirectional",
        "description": "P-port I/O with push-pull design structure; configured as input at power-on"
      },
      {
        "number": "8",
        "name": "P04",
        "type": "bidirectional",
        "description": "P-port I/O with push-pull design structure; configured as input at power-on"
      },
      {
        "number": "9",
        "name": "P05",
        "type": "bidirectional",
        "description": "P-port I/O with push-pull design structure; configured as input at power-on"
      },
      {
        "number": "10",
        "name": "P06",
        "type": "bidirectional",
        "description": "P-port I/O with push-pull design structure; configured as input at power-on"
      },
      {
        "number": "11",
        "name": "P07",
        "type": "bidirectional",
        "description": "P-port I/O with push-pull design structure; configured as input at power-on"
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Ground"
      },
      {
        "number": "13",
        "name": "P10",
        "type": "bidirectional",
        "description": "P-port I/O with push-pull design structure; configured as input at power-on"
      },
      {
        "number": "14",
        "name": "P11",
        "type": "bidirectional",
        "description": "P-port I/O with push-pull design structure; configured as input at power-on"
      },
      {
        "number": "15",
        "name": "P12",
        "type": "bidirectional",
        "description": "P-port I/O with push-pull design structure; configured as input at power-on"
      },
      {
        "number": "16",
        "name": "P13",
        "type": "bidirectional",
        "description": "P-port I/O with push-pull design structure; configured as input at power-on"
      },
      {
        "number": "17",
        "name": "P14",
        "type": "bidirectional",
        "description": "P-port I/O with push-pull design structure; configured as input at power-on"
      },
      {
        "number": "18",
        "name": "P15",
        "type": "bidirectional",
        "description": "P-port I/O with push-pull design structure; configured as input at power-on"
      },
      {
        "number": "19",
        "name": "P16",
        "type": "bidirectional",
        "description": "P-port I/O with push-pull design structure; configured as input at power-on"
      },
      {
        "number": "20",
        "name": "P17",
        "type": "bidirectional",
        "description": "P-port I/O with push-pull design structure; configured as input at power-on"
      },
      {
        "number": "21",
        "name": "A0",
        "type": "input",
        "description": "Address input 0; connect directly to VCC or ground"
      },
      {
        "number": "22",
        "name": "SCL",
        "type": "input",
        "description": "Serial clock bus for I2C/SMBus interface; connect to VCC through pull-up resistor"
      },
      {
        "number": "23",
        "name": "SDA",
        "type": "input",
        "description": "Serial data bus for I2C/SMBus interface; connect to VCC through pull-up resistor"
      },
      {
        "number": "24",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, recommended operating range 1.65V to 5.5V"
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 12,
        "cost_usd": 0.1443,
        "at": "2026-10-06T17:23:57"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tca9555",
        "pages": 49,
        "sha256": "7e8b64bcef672c03",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 24,
        "described": 24,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  }
}