PCA9548APWR

{
  "schema_version": 1,
  "type": "component",
  "slug": "pca9548apwr",
  "title": "PCA9548APWR",
  "brief": "Texas Instruments Interface - Specialized, TSSOP-24. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "pca9548apwr"
  ],
  "component": {
    "mpn": "PCA9548APWR",
    "manufacturer": "Texas Instruments",
    "package": "TSSOP-24",
    "pin_count": 24,
    "category": "Interface",
    "subcategory": "Interface - Specialized",
    "datasheet": "https://www.ti.com/lit/ds/symlink/pca9548a.pdf",
    "parts": {
      "symbol": "pca9548apwr.kicad_sym",
      "footprint": "pca9548apwr.kicad_mod",
      "model_3d": "pca9548apwr-etched.glb",
      "model_3d_plain": "pca9548apwr.glb",
      "model_3d_step": "pca9548apwr-etched.step",
      "model_3d_step_plain": "pca9548apwr.step",
      "lbr": "pca9548apwr.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "A0",
        "type": "input",
        "description": "Hardware I2C address input 0. Tie directly to VCC or GND to set the LSB of the device address. Static logic input, no internal pull."
      },
      {
        "number": "2",
        "name": "A1",
        "type": "input",
        "description": "Hardware I2C address input 1. Tie directly to VCC or GND to set an address bit. Static logic input, no internal pull."
      },
      {
        "number": "3",
        "name": "RESET",
        "type": "input",
        "description": "Active-low reset input. Pulling low (>=6 ns pulse) resets the I2C/SMBus state machine and deselects all channels. Tie to VCC through a pull-up resistor if unused. VIH >= 0.7*VCC."
      },
      {
        "number": "4",
        "name": "SD0",
        "type": "bidirectional",
        "description": "Channel 0 serial data. Downstream I2C SDA line for channel 0, open-drain. Connect to VCC through an external pull-up resistor; 5 V tolerant."
      },
      {
        "number": "5",
        "name": "SC0",
        "type": "bidirectional",
        "description": "Channel 0 serial clock. Downstream I2C SCL line for channel 0, open-drain. Connect to VCC through an external pull-up resistor; 5 V tolerant."
      },
      {
        "number": "6",
        "name": "SD1",
        "type": "bidirectional",
        "description": "Channel 1 serial data. Downstream I2C SDA line for channel 1, open-drain. Connect to VCC through an external pull-up resistor."
      },
      {
        "number": "7",
        "name": "SC1",
        "type": "bidirectional",
        "description": "Channel 1 serial clock. Downstream I2C SCL line for channel 1, open-drain. Connect to VCC through an external pull-up resistor."
      },
      {
        "number": "8",
        "name": "SD2",
        "type": "bidirectional",
        "description": "Channel 2 serial data. Downstream I2C SDA line for channel 2, open-drain. Connect to VCC through an external pull-up resistor."
      },
      {
        "number": "9",
        "name": "SC2",
        "type": "bidirectional",
        "description": "Channel 2 serial clock. Downstream I2C SCL line for channel 2, open-drain. Connect to VCC through an external pull-up resistor."
      },
      {
        "number": "10",
        "name": "SD3",
        "type": "bidirectional",
        "description": "Channel 3 serial data. Downstream I2C SDA line for channel 3, open-drain. Connect to VCC through an external pull-up resistor."
      },
      {
        "number": "11",
        "name": "SC3",
        "type": "bidirectional",
        "description": "Channel 3 serial clock. Downstream I2C SCL line for channel 3, open-drain. Connect to VCC through an external pull-up resistor."
      },
      {
        "number": "12",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device. Tie to system ground."
      },
      {
        "number": "13",
        "name": "SD4",
        "type": "bidirectional",
        "description": "Channel 4 serial data. Downstream I2C SDA line for channel 4, open-drain. Connect to VCC through an external pull-up resistor."
      },
      {
        "number": "14",
        "name": "SC4",
        "type": "bidirectional",
        "description": "Channel 4 serial clock. Downstream I2C SCL line for channel 4, open-drain. Connect to VCC through an external pull-up resistor."
      },
      {
        "number": "15",
        "name": "SD5",
        "type": "bidirectional",
        "description": "Channel 5 serial data. Downstream I2C SDA line for channel 5, open-drain. Connect to VCC through an external pull-up resistor."
      },
      {
        "number": "16",
        "name": "SC5",
        "type": "bidirectional",
        "description": "Channel 5 serial clock. Downstream I2C SCL line for channel 5, open-drain. Connect to VCC through an external pull-up resistor."
      },
      {
        "number": "17",
        "name": "SD6",
        "type": "bidirectional",
        "description": "Channel 6 serial data. Downstream I2C SDA line for channel 6, open-drain. Connect to VCC through an external pull-up resistor."
      },
      {
        "number": "18",
        "name": "SC6",
        "type": "bidirectional",
        "description": "Channel 6 serial clock. Downstream I2C SCL line for channel 6, open-drain. Connect to VCC through an external pull-up resistor."
      },
      {
        "number": "19",
        "name": "SD7",
        "type": "bidirectional",
        "description": "Channel 7 serial data. Downstream I2C SDA line for channel 7, open-drain. Connect to VCC through an external pull-up resistor."
      },
      {
        "number": "20",
        "name": "SC7",
        "type": "bidirectional",
        "description": "Channel 7 serial clock. Downstream I2C SCL line for channel 7, open-drain. Connect to VCC through an external pull-up resistor."
      },
      {
        "number": "21",
        "name": "A2",
        "type": "input",
        "description": "Hardware I2C address input 2. Tie directly to VCC or GND to set an address bit. Static logic input, no internal pull."
      },
      {
        "number": "22",
        "name": "SCL",
        "type": "bidirectional",
        "description": "Upstream (master-side) I2C serial clock bus. Open-drain; connect to VCC through an external pull-up resistor. Supports up to 400 kHz."
      },
      {
        "number": "23",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Upstream (master-side) I2C serial data bus. Open-drain; connect to VCC through an external pull-up resistor."
      },
      {
        "number": "24",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply voltage input. Operating range 2.3 V to 5.5 V. Decouple locally to GND (typ. 0.1 uF)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/pca9548a.pdf",
        "pages": 45,
        "sha256": "b2238acf0fecd58c",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 24,
        "described": 24,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "TSSOP-24",
      "Category": "Interface",
      "Pins": "24"
    }
  },
  "variants": [
    {
      "mpn": "PCA9548APWR",
      "kind": "packaging"
    },
    {
      "mpn": "PCA9548APWRDB",
      "kind": "packaging"
    },
    {
      "mpn": "PCA9548APWRDBR",
      "kind": "packaging"
    },
    {
      "mpn": "PCA9548APWRDGV",
      "kind": "packaging"
    },
    {
      "mpn": "PCA9548APWRDGVR",
      "kind": "packaging"
    },
    {
      "mpn": "PCA9548APWRDW",
      "kind": "packaging"
    },
    {
      "mpn": "PCA9548APWRDWR",
      "kind": "packaging"
    },
    {
      "mpn": "PCA9548APWRRGE",
      "kind": "packaging"
    },
    {
      "mpn": "PCA9548APWRRGER",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "pca9548apwr"
  ],
  "discovery_pitch": "PCA9548APWR (Texas Instruments) 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",
    "pca9548apwr.kicad_sym",
    "pca9548apwr.kicad_mod",
    "pca9548apwr.glb",
    "pca9548apwr.step",
    "pca9548apwr.lbr",
    "docs/hero.png",
    "docs/pca9548apwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-25T04:09:21.262Z"
}