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Ray Set visibility: public 7720d14 17d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "tja1042m-3",
  "title": "TJA1042M-3",
  "brief": "HGSEMI CAN Transceivers, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "interface",
    "tja1042m-3",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TJA1042M-3",
    "manufacturer": "HGSEMI",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "CAN Transceivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590929123491454976",
    "parts": {
      "symbol": "tja1042m-3.kicad_sym",
      "footprint": "tja1042m-3.kicad_mod",
      "model_3d": "tja1042m-3-hero.glb",
      "model_3d_plain": "tja1042m-3-etched.glb",
      "model_3d_step": "tja1042m-3-etched.step",
      "model_3d_step_plain": "tja1042m-3.step",
      "lbr": "tja1042m-3.lbr"
    },
    "distributor_links": {
      "lcsc": "C19193499"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T05:57:13Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "TXD",
        "type": "input",
        "description": "Transmit data input with an internal pull-up, so the bus stays recessive when TXD is floating; a low level drives the bus dominant, and a TXD dominant timeout (0.3 to 5 ms) releases the bus if TXD is held low."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the transceiver; all voltages are referenced to this pin."
      },
      {
        "number": "3",
        "name": "VCC",
        "type": "power_in",
        "description": "Main supply input, operating range 4.5 to 5.5 V, with undervoltage protection that tri-states the bus outputs when VCC falls below about 3.5 to 4.5 V."
      },
      {
        "number": "4",
        "name": "RXD",
        "type": "output",
        "description": "Receive data output that goes high when the bus is recessive and low when the bus is dominant; it is tri-stated when VCC is powered down to prevent reverse current."
      },
      {
        "number": "5",
        "name": "VIO/SPLIT",
        "type": "power_in",
        "description": "Dual-function pin: supplies the transceiver I/O level shifter (VIO operating range 2.8 to 5.5 V, allowing 3.3 V MCU interfacing on the TJA1042-3) and also serves as the SPLIT common-mode regulated output at 0.5VCC, which should be tied to the midpoint of the termination in normal mode and left floating in standby."
      },
      {
        "number": "6",
        "name": "CANL",
        "type": "bidirectional",
        "description": "Low-level CAN bus line, driven dominant at about 0.5 to 2.25 V with the bus common-mode range of -70 V to +70 V and ±8 kV HBM ESD protection."
      },
      {
        "number": "7",
        "name": "CANH",
        "type": "bidirectional",
        "description": "High-level CAN bus line, driven dominant at about 2.75 to 4.5 V with the bus common-mode range of -70 V to +70 V and ±8 kV HBM ESD protection."
      },
      {
        "number": "8",
        "name": "STB",
        "type": "input",
        "description": "Standby mode control input with an internal pull-up: low selects normal mode, while high or floating selects low-power standby mode with bus wake-up detection."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 5 is printed as VIO/SPLIT and has two functions: a supply for the I/O level shifter (power input; The datasheet gives one pin table (page 3) that is shared by TJA1042 and TJA1042-3 in SOP-8; the ord; The CANH/CANL dominant output voltages and ESD/common-mode ratings are from the electrical tables (p"
        ],
        "pages_sent": 13,
        "cost_usd": 0.0469,
        "at": "2026-10-18T05:56:43"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590929123491454976",
        "pages": 13,
        "sha256": "ea83dd256aba04f9",
        "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"
    },
    "models_3d": [
      {
        "file": "tja1042m-3.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tja1042m-3-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6,
          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e5591fbc0bedf666e3932ea477cd0d62c0a2bd4c7152f4a0a4158f64ed549359",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HGSEMI",
      "Package": "SOP-8",
      "Category": "Interface",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "ea83dd256aba04f9805e56e931ecc1979c08d17b2959a66ce82bbbc34d5ba69c",
      "rows": [
        {
          "name": "Supply voltage VCC (withstand)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "可承受耐压",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage VCC (operating range)",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.5,
          "typ": null,
          "max": 5.5,
          "conditions": "工作范围",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "I/O supply voltage VIO (withstand)",
          "symbol": "VIO",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 7,
          "conditions": "可承受耐压",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "I/O supply voltage VIO (operating range)",
          "symbol": "VIO",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.8,
          "typ": null,
          "max": 5.5,
          "conditions": "工作范围",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "CANH, CANL common-mode voltage",
          "symbol": "VCAN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -70,
          "typ": null,
          "max": 70,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Bus differential voltage",
          "symbol": "Vdiff",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -27,
          "typ": null,
          "max": 27,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Electrostatic discharge, human body model",
          "symbol": "VESD",
          "kind": "absolute_maximum",
          "unit": "kV",
          "min": -8,
          "typ": null,
          "max": 8,
          "conditions": "人体模型",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Actual junction temperature",
          "symbol": "TVJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "实际结温",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Lead temperature (soldering 10 s)",
          "symbol": "TLEAD",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": null,
          "typ": null,
          "max": 245,
          "conditions": "焊接 10s",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VCC supply current, normal mode recessive",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": 2.5,
          "typ": 5,
          "max": 10,
          "conditions": "正常模式:隐性 VTXD = VIO",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VCC supply current, normal mode dominant",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "mA",
          "min": 20,
          "typ": 45,
          "max": 70,
          "conditions": "正常模式:显性 VTXD = 0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VCC supply current, standby mode (TJA1042-3)",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "µA",
          "min": 0.5,
          "typ": null,
          "max": 5,
          "conditions": "待机模式:TJA1042-3",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VIO supply current, normal mode recessive",
          "symbol": "IIO",
          "kind": "electrical",
          "unit": "µA",
          "min": 80,
          "typ": null,
          "max": 200,
          "conditions": "正常模式:隐性 VTXD = VIO",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VIO supply current, normal mode dominant",
          "symbol": "IIO",
          "kind": "electrical",
          "unit": "µA",
          "min": 350,
          "typ": null,
          "max": 1000,
          "conditions": "正常模式:显性 VTXD = 0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VIO supply current, standby mode",
          "symbol": "IIO",
          "kind": "electrical",
          "unit": "µA",
          "min": 12,
          "typ": null,
          "max": 17,
          "conditions": "待机模式:VTXD = VIO",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VCC undervoltage protection threshold",
          "symbol": "Vuvp_VCC",
          "kind": "electrical",
          "unit": "V",
          "min": 3.5,
          "typ": null,
          "max": 4.5,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "VIO undervoltage protection threshold",
          "symbol": "Vuvp_VIO",
          "kind": "electrical",
          "unit": "V",
          "min": 1.3,
          "typ": 2,
          "max": 2.7,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "TXD low-level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "TXD high-level input current",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "µA",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "VTXD = VIO",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "TXD low-level input current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "µA",
          "min": -260,
          "typ": -150,
          "max": -30,
          "conditions": "正常模式:VTXD = 0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "STB low-level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "STB high-level input current",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VSTB = VIO",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "STB low-level input current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "µA",
          "min": -15,
          "typ": null,
          "max": -1,
          "conditions": "VSTB = 0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "RXD high-level output current",
          "symbol": "IOH",
          "kind": "electrical",
          "unit": "mA",
          "min": -8,
          "typ": -3,
          "max": -1,
          "conditions": "正常模式:VRXD = VIO - 0.4V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "RXD low-level output current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": 2,
          "typ": 5,
          "max": 12,
          "conditions": "VRXD = 0.4V,总线显性",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CANH dominant output voltage",
          "symbol": "VOH(D)",
          "kind": "electrical",
          "unit": "V",
          "min": 2.75,
          "typ": 3.5,
          "max": 4.5,
          "conditions": "VTXD = 0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "CANL dominant output voltage",
          "symbol": "VOL(D)",
          "kind": "electrical",
          "unit": "V",
          "min": 0.5,
          "typ": 1.5,
          "max": 2.25,
          "conditions": "VTXD = 0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Bus differential output voltage, dominant",
          "symbol": "VO(D)",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": null,
          "max": 3,
          "conditions": "VTXD = 0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Bus differential output voltage, recessive",
          "symbol": "VOD(R)",
          "kind": "electrical",
          "unit": "mV",
          "min": -12,
          "typ": null,
          "max": 12,
          "conditions": "VTXD = VIO;隐性 45Ω<RL<65Ω",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Dominant output voltage symmetry",
          "symbol": "Vdom(TX)sym",
          "kind": "electrical",
          "unit": "mV",
          "min": -400,
          "typ": null,
          "max": 400,
          "conditions": "Vdom(TX)sym = VCC - VCANH - VCANL",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Common-mode output voltage",
          "symbol": "VOC",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": 2.5,
          "max": 3,
          "conditions": "VSTB = 0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Difference between dominant and recessive common-mode output voltage",
          "symbol": "△VOC",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit output current, dominant (CANH to -12V)",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "mA",
          "min": -100,
          "typ": null,
          "max": -70,
          "conditions": "VCANH = -12V,VCANL = open",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit output current, dominant (CANH at 12V)",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.36,
          "typ": null,
          "max": 1,
          "conditions": "VCANH = 12V,VCANL = open",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit output current, dominant (CANL at -12V)",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "mA",
          "min": -1,
          "typ": null,
          "max": 0.5,
          "conditions": "VCANL = -12V,VCANH = open",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Short-circuit output current, dominant (CANL at 12V)",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "mA",
          "min": 70,
          "typ": null,
          "max": 100,
          "conditions": "VCANL = 12V,VCANH = open",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Recessive output current",
          "symbol": "IO(R)",
          "kind": "electrical",
          "unit": "mA",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "正常模式:VTXD = VIO,-27V< VCAN <32V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Transmitter propagation delay, low to high",
          "symbol": "tPLH",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 90,
          "conditions": "VSTB = 0V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Transmitter propagation delay, high to low",
          "symbol": "tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": null,
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