ISO1050DWR

{
  "schema_version": 1,
  "type": "component",
  "slug": "iso1050dwr",
  "title": "ISO1050DWR",
  "brief": "Texas Instruments CAN Controllers, SOIC-16-300mil. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "iso1050dwr"
  ],
  "component": {
    "mpn": "ISO1050DWR",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-16-300mil",
    "pin_count": 16,
    "category": "Interface",
    "subcategory": "CAN Controllers",
    "datasheet": "https://www.ti.com/lit/ds/symlink/iso1050dwr.pdf",
    "parts": {
      "symbol": "iso1050dwr.kicad_sym",
      "footprint": "iso1050dwr.kicad_mod",
      "model_3d": "iso1050dwr-etched.glb",
      "model_3d_plain": "iso1050dwr.glb",
      "model_3d_step": "iso1050dwr-etched.step",
      "model_3d_step_plain": "iso1050dwr.step",
      "lbr": "iso1050dwr.lbr"
    },
    "distributor_links": {
      "digikey": "296-41267-2-ND",
      "lcsc": "C93718"
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC1",
        "type": "power_in",
        "description": "Digital/controller-side supply voltage (3 V to 5.5 V). Powers the logic side (TXD/RXD) of the isolation barrier. Bypass locally to GND1."
      },
      {
        "number": "2",
        "name": "GND1",
        "type": "power_in",
        "description": "Digital-side ground reference. All logic-side voltages (VCC1, TXD, RXD) are measured with respect to GND1. Tied together with pins 7 and 8."
      },
      {
        "number": "3",
        "name": "RXD",
        "type": "output",
        "description": "CAN receive data output to the microcontroller. LOW indicates a dominant bus state, HIGH indicates a recessive bus state. Logic-side signal referenced to GND1/VCC1."
      },
      {
        "number": "4",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. Leave floating or tie as convenient for layout; no electrical function."
      },
      {
        "number": "5",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. Leave floating or tie as convenient for layout; no electrical function."
      },
      {
        "number": "6",
        "name": "TXD",
        "type": "input",
        "description": "CAN transmit data input from the microcontroller. LOW drives the bus to a dominant state, HIGH lets the bus return to recessive. Dominant time-out prevents indefinite bus lockout."
      },
      {
        "number": "7",
        "name": "GND1",
        "type": "power_in",
        "description": "Digital-side ground connection. Tie externally to pins 2 and 8 to form the logic-side ground plane."
      },
      {
        "number": "8",
        "name": "GND1",
        "type": "power_in",
        "description": "Digital-side ground connection. Tie externally to pins 2 and 7 to form the logic-side ground plane."
      },
      {
        "number": "9",
        "name": "GND2",
        "type": "power_in",
        "description": "Transceiver/bus-side ground connection. All bus-side voltages (VCC2, CANH, CANL) are measured with respect to GND2. Isolated from GND1 by the SiO2 barrier."
      },
      {
        "number": "10",
        "name": "GND2",
        "type": "power_in",
        "description": "Transceiver-side ground connection. Tie together with pins 9 and 15 to form the bus-side ground plane."
      },
      {
        "number": "11",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. Leave floating or tie as convenient for layout; no electrical function."
      },
      {
        "number": "12",
        "name": "CANL",
        "type": "bidirectional",
        "description": "Low-level CAN bus line. Differential bus I/O tolerating -27 V to +40 V bus faults and -12 V to +12 V common-mode. Pair with CANH through the twisted CAN bus with proper termination."
      },
      {
        "number": "13",
        "name": "CANH",
        "type": "bidirectional",
        "description": "High-level CAN bus line. Differential bus I/O tolerating -27 V to +40 V bus faults and -12 V to +12 V common-mode. Pair with CANL through the twisted CAN bus with proper termination."
      },
      {
        "number": "14",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. Leave floating or tie as convenient for layout; no electrical function."
      },
      {
        "number": "15",
        "name": "GND2",
        "type": "power_in",
        "description": "Transceiver-side ground connection. Tie together with pins 9 and 10 to form the bus-side ground plane."
      },
      {
        "number": "16",
        "name": "VCC2",
        "type": "power_in",
        "description": "Transceiver/bus-side supply voltage (nominal 5 V, 4.75 V to 5.25 V). Powers the CAN driver/receiver on the isolated side. Bypass locally to GND2."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://www.ti.com/lit/ds/symlink/iso1050dwr.pdf",
        "pages": 39,
        "sha256": "a0c90f640df4c1aa",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.475,
        -4.445
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "SOIC-16_3.9x9.9mm_P1.27mm@sha256:f9b5075740f7816c",
      "mark": "drawn"
    },
    "models_3d": [
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        "file": "iso1050dwr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
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          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "d5eeddb4c0b304dc61950919b126fc61d7586abd5f16ab71a2a79759ec6498bf",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "iso1050dwr-etched.step",
        "role": "eda",
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        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
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        "extents_mm": [
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        "zmin_mm": 0,
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        "sha256": "11f1236dfc9a910740d24f39fe0bd8006edbfd4d9df5fd53ab2103e0f4f6f939",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-16-300mil",
      "Category": "Interface",
      "Pins": "16"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "iso1050dwr"
  ],
  "discovery_pitch": "ISO1050DWR (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "iso1050dwr.kicad_sym",
    "iso1050dwr.kicad_mod",
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    "iso1050dwr.step",
    "iso1050dwr-etched.step",
    "iso1050dwr.lbr",
    "docs/hero.png",
    "docs/iso1050dwr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "ISO1050DWR",
      "kind": "packaging"
    },
    {
      "mpn": "ISO1050DWRDUB",
      "kind": "packaging"
    },
    {
      "mpn": "ISO1050DWRDUBR",
      "kind": "packaging"
    }
  ],
  "updated_at": "2026-09-24T23:00:31.224Z"
}