main
Ray Set visibility: public a8a5dd6 1d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "ht82c251arz",
  "title": "HT82C251ARZ",
  "brief": "HTCSEMI Buffer/Driver/Transceiver, 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",
    "logic ics",
    "ht82c251arz",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "HT82C251ARZ",
    "manufacturer": "HTCSEMI",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Logic ICs",
    "subcategory": "Buffer/Driver/Transceiver",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/418874d65737155ede1c6fa8e582ff9b.pdf",
    "parts": {
      "symbol": "ht82c251arz.kicad_sym",
      "footprint": "ht82c251arz.kicad_mod",
      "model_3d": "ht82c251arz-hero.glb",
      "model_3d_plain": "ht82c251arz-etched.glb",
      "model_3d_step": "ht82c251arz-etched.step",
      "model_3d_step_plain": "ht82c251arz.step",
      "lbr": "ht82c251arz.lbr"
    },
    "distributor_links": {
      "lcsc": "C3019550"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T12:04:07Z",
      "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 from the CAN controller; low (~1 V) drives the bus dominant, high (~4 V) gives recessive, with VIH min 0.7 VCC and VIL max 0.3 VCC."
      },
      {
        "number": "2",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "3",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, 4.5 V to 5.5 V recommended operating range (absolute maximum 7.0 V)."
      },
      {
        "number": "4",
        "name": "RXD",
        "type": "output",
        "description": "Receive data output to the CAN controller; low when the bus is dominant (VDIFF > 0.9 V), high when recessive (VDIFF < 0.5 V)."
      },
      {
        "number": "5",
        "name": "Vref",
        "type": "power_in",
        "description": "Reference voltage output equal to half of the supply voltage (0.45 VCC to 0.55 VCC)."
      },
      {
        "number": "6",
        "name": "CANL",
        "type": "bidirectional",
        "description": "Low-level CAN bus line, with input/output voltage range of -36 V to 36 V and recessive bus voltage of 2.0 V to 3.0 V."
      },
      {
        "number": "7",
        "name": "CANH",
        "type": "bidirectional",
        "description": "High-level CAN bus line, with input/output voltage range of -36 V to 36 V and recessive bus voltage of 2.0 V to 3.0 V."
      },
      {
        "number": "8",
        "name": "RS",
        "type": "input",
        "description": "Mode select: grounded (VRs < 0.3 VCC) for high-speed, resistor Rext to ground for reduced-RFI slope control, and VRs > 0.75 VCC for standby."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin-to-name mapping was taken from the pin layout label list and block diagram (TXD 01, GND 02, VCC ; The SOP8 package page gives only dimensions and no pin table. The SOP8 variant is HT82C251ARZ, per t"
        ],
        "pages_sent": 16,
        "cost_usd": 0.0902,
        "at": "2026-10-30T12:03:51"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/418874d65737155ede1c6fa8e582ff9b.pdf",
        "pages": 16,
        "sha256": "55daffa5715e0cfc",
        "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": [
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        "file": "ht82c251arz.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4.9,
          1.75
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "07f46cff378d30e6c27dfd5a03092c795323f86d91c71fc7e743f4f418dc553a",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "ht82c251arz-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.75
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9743f3d536b90dc4dee1986aab8f25c7656eb1aa621478286fc6b61c9246907d",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "SOP8",
      "source_page": 13,
      "D": {
        "nom_mm": 4.9,
        "range_mm": [
          4.8,
          5
        ]
      },
      "E1": {
        "nom_mm": 3.9,
        "range_mm": [
          3.8,
          4
        ]
      },
      "E": {
        "nom_mm": 6,
        "range_mm": [
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          6.2
        ]
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      "e": {
        "nom_mm": 1.27,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.75,
        "range_mm": [
          null,
          1.75
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "ht82c251arz.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  },
  "metadata": {
    "specs": {
      "Manufacturer": "HTCSEMI",
      "Package": "SOP-8",
      "Category": "Logic ICs",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "55daffa5715e0cfcf476170736af8f013ffea49a1a624682bde9c0e3d5ead284",
      "rows": [
        {
          "name": "Input/output high and low level voltage of CAN signal",
          "symbol": "VCAN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": -36,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Pin 06, 07 transient voltage",
          "symbol": "Vtr",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -200,
          "typ": null,
          "max": 200,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "Tstg",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -60,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Junction temperature",
          "symbol": "Tj",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply current, dominant",
          "symbol": "I3",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 78,
          "conditions": "Dominant; V1 = 1,0 V, VCC < 5,1 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply current, dominant",
          "symbol": "I3",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 80,
          "conditions": "Dominant; V1 = 1,0 V, VCC < 5,25 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply current, dominant",
          "symbol": "I3",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 85,
          "conditions": "Dominant; V1 = 1,0 V, VCC < 5,5 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply current, recessive",
          "symbol": "I3",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "Recessive; V1 = 4,0 V, R8 = 47 kΩ",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "High-level input current",
          "symbol": "IIH",
          "kind": "electrical",
          "unit": "μA",
          "min": -200,
          "typ": null,
          "max": 30,
          "conditions": "4,5 V< VCC < 5,5 V, V1 = 4,0 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Low-level input current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "μA",
          "min": -200,
          "typ": null,
          "max": -100,
          "conditions": "4,5 V< VCC < 5,5 V, V1 = 1,0 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Recessive bus voltage",
          "symbol": "V6,7",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": 3,
          "conditions": "4,5 V< VCC < 5,5 V, V1 = 4,0 V, no load",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Off-state output leakage current",
          "symbol": "ILO",
          "kind": "electrical",
          "unit": "mA",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "4,5 V< VCC < 5,5 V, -2,0 V< (V6, V7) < 7,0 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Off-state output leakage current",
          "symbol": "ILO",
          "kind": "electrical",
          "unit": "mA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "4,5 V< VCC < 5,5 V, -5,0 V< (V6, V7) < 36 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "CANH short-circuit current",
          "symbol": "ISC7",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": -200,
          "conditions": "4,5 V< VCC < 5,5 V, V7 = -5,0 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CANL signal short-circuit current",
          "symbol": "ISC6",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 200,
          "conditions": "4,5 V< VCC < 5,5 V, V6 = 36 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Differential input voltage (dominant mode)",
          "symbol": "VDIFF(D)",
          "kind": "electrical",
          "unit": "V",
          "min": 1,
          "typ": null,
          "max": 5,
          "conditions": "4,5 V< VCC < 5,5 V, -7,0 V< (V6, V7) < 12 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "CANL and CANH input resistance",
          "symbol": "RI",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 5,
          "typ": null,
          "max": 25,
          "conditions": "4,5 V< VCC < 5,5 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Differential input resistance",
          "symbol": "RDIFF",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 20,
          "typ": null,
          "max": 100,
          "conditions": "4,5 V< VCC < 5,5 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "One bit transmitting minimum time",
          "symbol": "tbit",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "4,5 V< VCC < 5,5 V, R8 = 0 Ω",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input data transfer to active bus delay",
          "symbol": "tonTXD",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "4,5 V< VCC < 5,5 V, R8 = 0 Ω",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input data transfer to inactive bus delay",
          "symbol": "toffTXD",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 80,
          "conditions": "4,5 V< VCC < 5,5 V, R8 = 0 Ω",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input data transfer to active receiver delay",
          "symbol": "tonRXD",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 120,
          "conditions": "4,5 V< VCC < 5,5 V, R8 = 0 Ω",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input data transfer to active receiver delay",
          "symbol": "tonRXD",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 550,
          "conditions": "4,5 V< VCC < 5,5 V, R8 = 47 kΩ",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input data transfer to inactive receiver delay",
          "symbol": "toffRXD",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 190,
          "conditions": "4,5 V< VCC < 5,5 V, R8 = 0 Ω",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input data transfer to inactive receiver delay",
          "symbol": "toffRXD",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 400,
          "conditions": "4,5 V< VCC < 5,5 V, R8 = 47 kΩ",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Wake-up time from standby mode (via pin 08)",
          "symbol": "tWAKE",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "4,5 V< VCC < 5,5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Bus input data transfer delay to low on RXD output",
          "symbol": "tdRXDL",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "4,5 V< VCC < 5,5 V, V8 = 4,0 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Input current for low RFI mode",
          "symbol": "Islope",
          "kind": "electrical",
          "unit": "μA",
          "min": -200,
          "typ": null,
          "max": -10,
          "conditions": "4,5 V< VCC < 5,5 V",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Differential hysteresis voltage",
          "symbol": "Vdiff(hys)",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "VCC from 4,5 to 5,5 V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "CANH, CANL slew rate",
          "symbol": "|SR|",
          "kind": "electrical",
          "unit": "V/μs",
          "min": null,
          "typ": 7,
          "max": null,
          "conditions": "VCC from 4,5 to 5,5 V; R8 = 47 kΩ",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "High level CAN short circuit current",
          "symbol": "ISC7",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": -100,
          "max": null,
          "conditions": "VCC from 4,5 to 5,5 V; V7 = -36 V",
          "source_page": 7,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "breadcrumbs",
    "info"
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "HT82C251ARZ (HTCSEMI) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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