SIT82C251T

{
  "schema_version": 1,
  "type": "component",
  "slug": "sit82c251t",
  "title": "SIT82C251T",
  "brief": "SIT 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": [
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    "interface",
    "sit82c251t",
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  "component": {
    "mpn": "SIT82C251T",
    "manufacturer": "SIT",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "CAN Transceivers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588881761815814144",
    "parts": {
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      "model_3d_step_plain": "sit82c251t.step",
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    "distributor_links": {
      "lcsc": "C313020"
    },
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      "checked_at": "2026-10-17T17:12:10Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
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    },
    "pins": [
      {
        "number": "1",
        "name": "TXD",
        "type": "input",
        "description": "Transmit data input from the CAN protocol controller; logic-high input must be between 2 V and VCC+0.3 V and logic-low between -0.3 V and 0.8 V."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground supply and voltage reference point for all device voltages."
      },
      {
        "number": "3",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage of 4.5 V to 5.5 V for normal operation (absolute maximum -0.3 V to +7 V)."
      },
      {
        "number": "4",
        "name": "RXD",
        "type": "output",
        "description": "Receive data output that reads out the bus state, going low for dominant and high for recessive bus states."
      },
      {
        "number": "5",
        "name": "VREF",
        "type": "power_out",
        "description": "Common-mode stabilization (reference) voltage output, specified at 0.3VCC to 0.7VCC for load currents between -500 µA and 500 µA."
      },
      {
        "number": "6",
        "name": "CANL",
        "type": "bidirectional",
        "description": "LOW-level CAN bus line, rated for bus terminal voltages from -40 V to +40 V."
      },
      {
        "number": "7",
        "name": "CANH",
        "type": "bidirectional",
        "description": "HIGH-level CAN bus line, rated for bus terminal voltages from -40 V to +40 V."
      },
      {
        "number": "8",
        "name": "Rs",
        "type": "input",
        "description": "Standby mode control input: grounding Rs selects high-speed mode, while high or open selects low-power standby mode; the MCU-side port limit is -0.3 V to VCC+0.3 V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
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        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The datasheet lists one pin table (page 2) that applies to both the SOP8 and DIP8 packages; the SIT8; The datasheet does not state a KiCad ERC type for VREF, RXD or the bus pins; the types assigned here"
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        "cost_usd": 0.0571,
        "at": "2026-10-17T17:10:00"
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        "sha256": "e2c6771ee683400b",
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        "total": 8,
        "described": 8,
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  "metadata": {
    "specs": {
      "Manufacturer": "SIT",
      "Package": "SOP-8",
      "Category": "Interface",
      "Pins": "8"
    },
    "characteristics": {
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          "name": "Supply voltage",
          "symbol": "Vcc",
          "kind": "recommended_operating",
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          "max": 5.5,
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        {
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        {
          "name": "Bus differential voltage",
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        {
          "name": "Virtual junction temperature",
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        {
          "name": "MCU side port TXD, RXD, VREF, Rs",
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          "typ": null,
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          "conditions": "see Fig 7",
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        {
          "name": "Storage temperature",
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          "unit": "℃",
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        {
          "name": "Virtual junction temperature",
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          "min": -40,
          "typ": null,
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        {
          "name": "Continuous power consumption",
          "symbol": "",
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          "unit": "mW",
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          "conditions": "SOP8",
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        },
        {
          "name": "CANH dominant output voltage",
          "symbol": "VOH(D)",
          "kind": "electrical",
          "unit": "V",
          "min": 2.9,
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          "max": 4.5,
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        {
          "name": "CANL dominant output voltage",
          "symbol": "VOL(D)",
          "kind": "electrical",
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          "min": 0.8,
          "typ": null,
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          "conditions": "",
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        },
        {
          "name": "Bus recessive output voltage",
          "symbol": "VO(R)",
          "kind": "electrical",
          "unit": "V",
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          "name": "Bus dominant differential output voltage",
          "symbol": "VOD(D)",
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        {
          "name": "Bus recessive differential output voltage",
          "symbol": "VOD(R)",
          "kind": "electrical",
          "unit": "V",
          "min": -0.012,
          "typ": null,
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          "conditions": "VI=3V, Rs=0V, Fig 1, Fig 2",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Bus recessive differential output voltage (no load)",
          "symbol": "VOD(R)",
          "kind": "electrical",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 0.05,
          "conditions": "VI=3V, Rs=0V, NO LOAD",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Transmitter dominant 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": 3,
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        {
          "name": "Common-mode output voltage",
          "symbol": "VOC",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": 2.5,
          "max": 3,
          "conditions": "Rs=0V, Fig 8",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Peak-to-peak Common-mode output voltage",
          "symbol": "VOC",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
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        {
          "name": "Short-circuit output current (CANH=-12V, CANL=open)",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "mA",
          "min": -105,
          "typ": null,
          "max": -72,
          "conditions": "CANH=-12V, CANL=open, Fig 10",
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        {
          "name": "Short-circuit output current (CANH=12V, CANL=open)",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "mA",
          "min": 0.36,
          "typ": null,
          "max": 1,
          "conditions": "CANH=12V, CANL=open, Fig 10",
          "source_page": 3,
          "source": "datasheet"
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        {
          "name": "Short-circuit output current (CANL=-12V, CANH=open)",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "mA",
          "min": -1,
          "typ": null,
          "max": 0.5,
          "conditions": "CANL=-12V, CANH=open, Fig 10",
          "source_page": 3,
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        {
          "name": "Short-circuit output current (CANL=12V, CANH=open)",
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          "kind": "electrical",
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          "min": 71,
          "typ": null,
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          "conditions": "CANL=12V, CANH=open, Fig 10",
          "source_page": 3,
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        {
          "name": "Recessive output current",
          "symbol": "IO(R)",
          "kind": "electrical",
          "unit": "mA",
          "min": -2,
          "typ": null,
          "max": 2.5,
          "conditions": "-27V<CANH<32V, 0<VCC<5.25V",
          "source_page": 3,
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        {
          "name": "Propagation delay time, low-to-high-level output (driver)",
          "symbol": "tPLH",
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          "min": 25,
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          "max": 120,
          "conditions": "Rs=0V, Fig 4",
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          "name": "Propagation delay time, high-to-low-level output (driver)",
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          "name": "Differential output signal rise time",
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          "name": "Differential output signal fall time",
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          "name": "Enable time from standby mode to dominant",
          "symbol": "tEN",
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        },
        {
          "name": "Bus wake-up filter time",
          "symbol": "tBUS",
          "kind": "timing",
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          "min": 0.7,
          "typ": null,
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        {
          "name": "Positive-going input threshold voltage",
          "symbol": "VIT+",
          "kind": "electrical",
          "unit": "mV",
          "min": 800,
          "typ": null,
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          "conditions": "Rs=0V, Fig 5",
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          "name": "Negative-going input threshold voltage",
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          "kind": "electrical",
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          "name": "Hysteresis voltage (VIT+ – VIT–)",
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          "name": "Low-level output voltage (receiver)",
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          "typ": null,
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        {
          "name": "Power-off bus input current",
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          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "CANH or CANL=5V, Other pin=0V",
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          "source": "datasheet"
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        {
          "name": "Input capacitance to ground (CANH or CANL)",
          "symbol": "CI",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 13,
          "conditions": "",
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        {
          "name": "Differential input capacitance",
          "symbol": "CID",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "",
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        {
          "name": "Input resistance (CANH or CANL)",
          "symbol": "RIN",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 15,
          "typ": 30,
          "max": 40,
          "conditions": "TXD=3V, Rs=0V",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Differential input resistance",
          "symbol": "RID",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 30,
          "typ": null,
          "max": 80,
          "conditions": "",
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        {
          "name": "Input resistance matching",
          "symbol": "RImatch",
          "kind": "tolerance",
          "unit": "%",
          "min": -3,
          "typ": null,
          "max": 3,
          "conditions": "CANH=CANL",
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        },
        {
          "name": "The range of common-mode voltage",
          "symbol": "VCOM",
          "kind": "electrical",
          "unit": "V",
          "min": -12,
          "typ": null,
          "max": 12,
          "conditions": "",
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          "name": "Propagation delay time, low-to-high-level output (receiver)",
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          "name": "Propagation delay time, high-to-low-level output (receiver)",
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          "min": 45,
          "typ": 70,
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        {
          "name": "RXD signal rise time",
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          "name": "RXD signal fall time",
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        },
        {
          "name": "Loop delay 1, driver input to receiver output, Recessive to Dominant",
          "symbol": "td(LOOP1)",
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          "unit": "ns",
          "min": 90,
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          "conditions": "Rs=0V, Fig 9",
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          "name": "Loop delay 2, driver input to receiver output, Dominant to Recessive",
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        {
          "name": "Standby supply current",
          "symbol": "ICC",
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          "unit": "μA",
          "min": 5,
          "typ": null,
          "max": 12,
          "conditions": "Rs=VCC, VI=VCC",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Supply current, Dominant",
          "symbol": "ICC",
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