TCA39306DCUR

{
  "schema_version": 1,
  "type": "component",
  "slug": "tca39306dcur",
  "title": "TCA39306DCUR",
  "brief": "Texas Instruments Translators / Level Shifters, VSSOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "logic",
    "tca39306dcur"
  ],
  "component": {
    "mpn": "TCA39306DCUR",
    "manufacturer": "Texas Instruments",
    "package": "VSSOP-8",
    "pin_count": 8,
    "category": "Logic",
    "subcategory": "Translators / Level Shifters",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2302281900_Texas-Instruments-TCA39306DCUR_C4364204.pdf",
    "parts": {
      "symbol": "tca39306dcur.kicad_sym",
      "footprint": "tca39306dcur.kicad_mod",
      "model_3d": "tca39306dcur-etched.glb",
      "model_3d_plain": "tca39306dcur.glb",
      "model_3d_step": "tca39306dcur-etched.step",
      "model_3d_step_plain": "tca39306dcur.step",
      "lbr": "tca39306dcur.lbr"
    },
    "distributor_links": {
      "lcsc": "C4364204"
    },
    "pins": [
      {
        "number": "1",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference, 0 V. Common return for both reference rails and internal logic."
      },
      {
        "number": "2",
        "name": "VREF1",
        "type": "power_in",
        "description": "Low-side reference supply for SCL1/SDA1. Recommended operating range 0 V to 5.5 V; supports translation down to 0.85 V (must be at least VREF2 - 0.6 V)."
      },
      {
        "number": "3",
        "name": "SCL1",
        "type": "bidirectional",
        "description": "Low-voltage side serial clock line of the I2C/SMBus/I3C bus. Open-drain pass-gate connection to SCL2 when EN is high."
      },
      {
        "number": "4",
        "name": "SDA1",
        "type": "bidirectional",
        "description": "Low-voltage side serial data line of the I2C/SMBus/I3C bus. Open-drain pass-gate connection to SDA2 when EN is high."
      },
      {
        "number": "5",
        "name": "SDA2",
        "type": "bidirectional",
        "description": "High-voltage side serial data line of the I2C/SMBus/I3C bus. Open-drain pass-gate connection to SDA1 when EN is high."
      },
      {
        "number": "6",
        "name": "SCL2",
        "type": "bidirectional",
        "description": "High-voltage side serial clock line of the I2C/SMBus/I3C bus. Open-drain pass-gate connection to SCL1 when EN is high."
      },
      {
        "number": "7",
        "name": "VREF2",
        "type": "power_in",
        "description": "High-side reference supply for SCL2/SDA2. Recommended operating range 0 V to 5.5 V (must be at least VREF1 + 0.6 V)."
      },
      {
        "number": "8",
        "name": "EN",
        "type": "input",
        "description": "Switch enable input. Drive high (>=1.5 V, up to 5.5 V) to connect SCL1<->SCL2 and SDA1<->SDA2 through the pass-gate switches; drive low to isolate the two sides in a high-impedance state. Typically tied to VREF2 through a 200 kOhm pull-up."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2302281900_Texas-Instruments-TCA39306DCUR_C4364204.pdf",
        "pages": 28,
        "sha256": "952449a0d65e2f3b",
        "source_tier": "lcsc"
      },
      "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"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -1.4,
        -0.75
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "VSSOP-8_2.3x2mm_P0.5mm@sha256:dca72da69de3263a",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "tca39306dcur.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.1,
          2,
          0.85
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "353552981eef35cb93635057d4aeb89aef22648c77af6fd095e328bfe6b834bd",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tca39306dcur-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.1,
          2,
          0.85
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "81667dd4efc4b9846636a370ec84871b1ade1cf30b43300019eba2e04d179448",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "VSSOP-8",
      "Category": "Logic",
      "Pins": "8"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tca39306dcur"
  ],
  "discovery_pitch": "TCA39306DCUR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tca39306dcur.kicad_sym",
    "tca39306dcur.kicad_mod",
    "tca39306dcur.glb",
    "tca39306dcur.step",
    "tca39306dcur.lbr",
    "docs/hero.png",
    "docs/tca39306dcur-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tca39306dcur-etched.step"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "TCA39306DCUR",
      "kind": "packaging"
    },
    {
      "mpn": "TCA39306DCURDDF",
      "kind": "packaging"
    },
    {
      "mpn": "TCA39306DCURDTM",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-25T09:24:21.830Z"
}