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Ray Set visibility: public ebe2e80 9d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "cos485rs",
  "title": "COS485RS",
  "brief": "COSINE RS-485/RS-422 ICs, 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",
    "communication interface chip-uart-485-232",
    "cos485rs",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "COS485RS",
    "manufacturer": "COSINE",
    "package": "SOP-8",
    "pin_count": 8,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "RS-485/RS-422 ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/c3b52c7305b0ecee3a5907d4f04175db.pdf",
    "parts": {
      "symbol": "cos485rs.kicad_sym",
      "footprint": "cos485rs.kicad_mod",
      "model_3d": "cos485rs-hero.glb",
      "model_3d_plain": "cos485rs-etched.glb",
      "model_3d_step": "cos485rs-etched.step",
      "model_3d_step_plain": "cos485rs.step",
      "lbr": "cos485rs.lbr"
    },
    "distributor_links": {
      "lcsc": "C5334495"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T03:18:41Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RO",
        "type": "output",
        "description": "Receiver output: when RE is low, RO is high if A > B by 200mV and low if A < B by 200mV; high impedance when RE is high."
      },
      {
        "number": "2",
        "name": "RE",
        "type": "input",
        "description": "Receiver output enable: a low enables the receiver output RO, a high forces RO into a high impedance state."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver output enable: a high enables driver outputs A and B (line driver), a low forces them high impedance (line receiver)."
      },
      {
        "number": "4",
        "name": "DI",
        "type": "input",
        "description": "Driver input: with DE high, a low on DI forces A low and B high, and a high on DI forces A high and B low."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "6",
        "name": "A",
        "type": "bidirectional",
        "description": "Non-inverting receiver input and non-inverting driver output, with -7V to 12V common mode range and ±8 kV IEC-ESD contact protection."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "Inverting receiver input and inverting driver output, with -7V to 12V common mode range and ±8 kV IEC-ESD contact protection."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply, 3.0V to 5.5V recommended operating range (7V absolute maximum)."
      }
    ],
    "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": [],
        "pages_sent": 12,
        "cost_usd": 0.0565,
        "at": "2026-10-23T03:18:25"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/c3b52c7305b0ecee3a5907d4f04175db.pdf",
        "pages": 12,
        "sha256": "ec80090158e6c3aa",
        "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": "cos485rs.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": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "cos485rs-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4.9,
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "0c64d5805a293d8dfde0593cdc27524cce5e2cca99faf3076ad6359ca022a205",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "COSINE",
      "Package": "SOP-8",
      "Category": "Communication Interface Chip/UART/485/232",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "ec80090158e6c3aab352c4e5ad1db7cc9c33d99eecb6be00b09f4db1f45e184b",
      "rows": [
        {
          "name": "DC supply voltage",
          "symbol": "Vcc",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Control input voltages",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 5.5,
          "conditions": "Max printed as Vcc + 0.5",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Driver output voltage at A or B",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -14,
          "typ": null,
          "max": 14,
          "conditions": "±14",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Receiver input voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -14,
          "typ": null,
          "max": 14,
          "conditions": "±14",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature (abs max)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 135,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Package thermal resistance SOP8",
          "symbol": "",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "SOP8",
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          "source": "datasheet"
        },
        {
          "name": "DC supply voltage",
          "symbol": "Vcc",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Input voltage at any bus terminal",
          "symbol": "",
          "kind": "recommended_operating",
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          "min": -7,
          "typ": null,
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          "conditions": "",
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        {
          "name": "Differential input voltage",
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          "unit": "V",
          "min": -12,
          "typ": null,
          "max": 12,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Differential load resistance",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "Ω",
          "min": 54,
          "typ": 60,
          "max": null,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Data rate",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "Mbps",
          "min": 0,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Operating ambient temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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          "source": "datasheet"
        },
        {
          "name": "Operating junction temperature",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Differential driver output (no load)",
          "symbol": "VOD1",
          "kind": "electrical",
          "unit": "V",
          "min": 3,
          "typ": 3.5,
          "max": null,
          "conditions": "IO = 0",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Differential driver output (with load) RS422",
          "symbol": "VOD2",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": 2.5,
          "max": null,
          "conditions": "RL = 50Ω (RS422)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Differential driver output (with load) RS485",
          "symbol": "VOD2",
          "kind": "electrical",
          "unit": "V",
          "min": 1.5,
          "typ": 2,
          "max": null,
          "conditions": "RL = 27Ω (RS485), Figure 2",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Change in magnitude of driver differential output voltage",
          "symbol": "ΔVOD",
          "kind": "electrical",
          "unit": "V",
          "min": -0.2,
          "typ": 0,
          "max": 0.2,
          "conditions": "RL = 27Ω or 50Ω",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Driver common-mode output voltage",
          "symbol": "VOC",
          "kind": "electrical",
          "unit": "V",
          "min": 1,
          "typ": 2.4,
          "max": 3,
          "conditions": "RL = 27Ω or 50Ω",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Change in magnitude of driver common-mode output voltage",
          "symbol": "ΔVOC",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "RL = 27Ω or 50Ω",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Driver short-circuit current",
          "symbol": "IOS",
          "kind": "electrical",
          "unit": "mA",
          "min": -250,
          "typ": null,
          "max": 250,
          "conditions": "VO = -7V to 12V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Logic input high voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "RE, DE, DI",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Logic input low voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.8,
          "conditions": "RE, DE, DI",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Logic input current",
          "symbol": "IIN1",
          "kind": "electrical",
          "unit": "μA",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "RE, DE, DI",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Receiver differential threshold voltage",
          "symbol": "VTH",
          "kind": "electrical",
          "unit": "mV",
          "min": -200,
          "typ": -125,
          "max": -50,
          "conditions": "VCM = -7V to 12V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Receiver input hysteresis",
          "symbol": "ΔVTH",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "VCM = 0V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Receiver input resistance",
          "symbol": "RIN",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 100,
          "typ": null,
          "max": null,
          "conditions": "VCM = -7V to 12V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Input current (A, B)",
          "symbol": "IIN",
          "kind": "electrical",
          "unit": "mA",
          "min": -0.3,
          "typ": null,
          "max": 0.3,
          "conditions": "VCC = 0V or 5V, VDE = 0V, VIN = 12V / VIN = -7V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Receiver output high voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4,
          "typ": 4.6,
          "max": null,
          "conditions": "IO = -8mA, VID = 200mV",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Receiver output low voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 0.2,
          "max": 0.4,
          "conditions": "IO = -8mA, VID = 200mV",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Receiver output short-circuit current",
          "symbol": "IOSR",
          "kind": "electrical",
          "unit": "mA",
          "min": 7,
          "typ": null,
          "max": 30,
          "conditions": "VRO = 0V to Vcc",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Tristate output leakage current",
          "symbol": "IOZR",
          "kind": "electrical",
          "unit": "μA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VRO = 0.4 to 2.4V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 330,
          "max": 500,
          "conditions": "No Load, DE= VCC, RE = 0",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 36,
          "max": 50,
          "conditions": "No Load, DE= VCC, RE = VCC",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply current",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 350,
          "max": 550,
          "conditions": "No Load, DE= 0, RE = 0",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Shutdown current",
          "symbol": "ISHDN",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 2,
          "conditions": "DE= 0, RE = VCC",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal shut-down junction temperature",
          "symbol": "TSH",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 170,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Thermal shut-down hysteresis",
          "symbol": "TSHY",
          "kind": "electrical",
          "unit": "°C",
          "min": null,
          "typ": 30,
          "max": null,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Driver propagation delay",
          "symbol": "tPLH",
          "kind": "timing",
          "unit": "ns",
          "min": 3,
          "typ": 5,
          "max": 10,
          "conditions": "RDIFF = 54Ω, CL1 = CL2 = 100pF",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Driver output to output skew",
          "symbol": "tSK",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 2,
          "max": 5,
          "conditions": "RDIFF = 54Ω, CL1 = CL2 = 100pF",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Driver rise or fall time",
          "symbol": "tr, tf",
          "kind": "timing",
          "unit": "ns",
          "min": 3,
          "typ": 6,
          "max": 10,
          "conditions": "RDIFF = 54Ω, CL1 = CL2 = 100pF",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Driver enable to output high",
          "symbol": "tPZH",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 5,
          "max": 10,
          "conditions": "CL = 100pF, S2 = Closed",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Driver enable to output low",
          "symbol": "tPZL",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 5,
          "max": 10,
          "conditions": "CL = 100pF, S1 = Closed",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Driver disable time from low",
          "symbol": "tPLZ",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 8,
          "max": 15,
          "conditions": "CL = 15pF, S1 = Closed",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Driver disable time from high",
          "symbol": "tPHZ",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 8,
          "max": 15,
          "conditions": "CL = 15pF, S2 = Closed",
          "source_page": 6,
          "source": "datasheet"
        },
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