TCAN1145DRQ1

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  "type": "component",
  "slug": "tcan1145drq1",
  "title": "TCAN1145DRQ1",
  "brief": "Texas Instruments CAN ICs, SOIC-14. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "comm-uart",
    "tcan1145drq1"
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  "component": {
    "mpn": "TCAN1145DRQ1",
    "manufacturer": "Texas Instruments",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Comm/UART",
    "subcategory": "CAN ICs",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2302220500_Texas-Instruments-TCAN1145DRQ1_C3234148.pdf",
    "parts": {
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      "footprint": "tcan1145drq1.kicad_mod",
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    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "TXD",
        "type": "input",
        "description": "CAN transmit data input from the MCU. Low drives a dominant bus state; high (or floating with internal pull-up) leaves the bus recessive."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground return. The exposed thermal pad on the DMT (VSON) variant must also be soldered to GND."
      },
      {
        "number": "3",
        "name": "VCC",
        "type": "power_in",
        "description": "5V supply for the CAN bus transceiver core. Nominal 4.5V-5.5V per recommended operating conditions."
      },
      {
        "number": "4",
        "name": "RXD",
        "type": "output",
        "description": "CAN receive data output to the MCU. Tri-state; low = dominant bus, high = recessive bus."
      },
      {
        "number": "5",
        "name": "VIO",
        "type": "power_in",
        "description": "Digital I/O rail for level shifting to the MCU. Supports 1.8V-5V to match the host processor's I/O voltage."
      },
      {
        "number": "6",
        "name": "nINT/SDO",
        "type": "output",
        "description": "Muxed digital output. Acts as SPI serial-data-out (SDO) while nCS is low; becomes the active-low interrupt (nINT) output when nCS is high."
      },
      {
        "number": "7",
        "name": "INH/LIMP",
        "type": "output",
        "description": "High-voltage inhibit output used to enable/disable the system voltage regulator and power rails. On TCAN1144-Q1 and TCAN1146-Q1 this pin can be configured as a limp-home output; on TCAN1145-Q1 it functions as INH only."
      },
      {
        "number": "8",
        "name": "SCLK",
        "type": "input",
        "description": "SPI serial clock input from the MCU. Clocks SDI in and SDO out on the appropriate edges."
      },
      {
        "number": "9",
        "name": "WAKE",
        "type": "input",
        "description": "High-voltage local wake-up input. Edge on this pin wakes the device from sleep. Absolute voltage range −18V to +42V."
      },
      {
        "number": "10",
        "name": "VSUP",
        "type": "power_in",
        "description": "High-voltage battery supply input. Feeds the INH and wake circuitry directly from the vehicle battery rail."
      },
      {
        "number": "11",
        "name": "SDI",
        "type": "input",
        "description": "SPI serial data input from the MCU. Sampled on SCLK edges while nCS is asserted low."
      },
      {
        "number": "12",
        "name": "CANL",
        "type": "bidirectional",
        "description": "Low-side CAN bus I/O. Driven low in the dominant state and biased to VCC/2 in the recessive state. ±58V bus fault protection."
      },
      {
        "number": "13",
        "name": "CANH",
        "type": "bidirectional",
        "description": "High-side CAN bus I/O. Driven high in the dominant state and biased to VCC/2 in the recessive state. ±58V bus fault protection."
      },
      {
        "number": "14",
        "name": "nCS",
        "type": "input",
        "description": "Active-low SPI chip-select input from the MCU. Enables SPI transactions and selects the nINT/SDO pin function."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2302220500_Texas-Instruments-TCAN1145DRQ1_C3234148.pdf",
        "pages": 116,
        "sha256": "276a9067cc1d77a4",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "zmin_mm": -0.0,
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "SOIC-14",
      "Category": "Comm/UART",
      "Pins": "14"
    }
  },
  "variants": [
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      "mpn": "TCAN1145DRQ1D",
      "kind": "packaging"
    },
    {
      "mpn": "TCAN1145DRQ1",
      "kind": "packaging"
    },
    {
      "mpn": "TCAN1145DRQ1DMT",
      "kind": "packaging"
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    {
      "mpn": "TCAN1145DRQ1DYY",
      "kind": "packaging"
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  "discovery_triggers": [
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  "discovery_pitch": "TCAN1145DRQ1 (Texas Instruments) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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  "updated_at": "2026-09-25T09:30:06.484Z"
}