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Ray Set visibility: public 863d277 17d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "isl3155eiuz-t-tudi",
  "title": "ISL3155EIUZ-T-TUDI",
  "brief": "Tudi RS-485 / RS-422 ICs, MSOP-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",
    "isl3155eiuz-t-tudi",
    "factory-2.0.0",
    "extractor-text"
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  "component": {
    "mpn": "ISL3155EIUZ-T-TUDI",
    "manufacturer": "Tudi",
    "package": "MSOP-8",
    "pin_count": 8,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604436248815677440",
    "parts": {
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      "footprint": "isl3155eiuz-t-tudi.kicad_mod",
      "model_3d": "isl3155eiuz-t-tudi-hero.glb",
      "model_3d_plain": "isl3155eiuz-t-tudi-etched.glb",
      "model_3d_step": "isl3155eiuz-t-tudi-etched.step",
      "model_3d_step_plain": "isl3155eiuz-t-tudi.step",
      "lbr": "isl3155eiuz-t-tudi.lbr"
    },
    "distributor_links": {
      "lcsc": "C42372944"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T20:36:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
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        "name": "RO",
        "type": "output",
        "description": "Receiver output, high when A-B >= -50mV and low when A-B <= -200mV while /RE is low, high-impedance when /RE is high."
      },
      {
        "number": "2",
        "name": "/RE",
        "type": "input",
        "description": "Receiver output enable, active low; /RE high with DE low puts the device in low-power shutdown."
      },
      {
        "number": "3",
        "name": "DE",
        "type": "input",
        "description": "Driver output enable, active high, high-impedance outputs when low; DE low with /RE high enters shutdown."
      },
      {
        "number": "4",
        "name": "DI",
        "type": "input",
        "description": "Driver input, with DE high a low on DI drives A low and B high, a high on DI drives 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 ±15kV ESD protection."
      },
      {
        "number": "7",
        "name": "B",
        "type": "bidirectional",
        "description": "Inverting receiver input and inverting driver output, with ±15kV ESD protection."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply, operating range 4.75V to 5.25V."
      }
    ],
    "provenance": {
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        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
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          "vision extraction: provenance cannot be text-verified; needs consensus"
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        "pages_sent": 10,
        "cost_usd": 0.1389,
        "at": "2026-10-17T20:35:51"
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        "pages": 10,
        "sha256": "e9d7e24ac7e5473a",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
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        "sha256": "847c4c5023fe1603fbd36900a5dcc4bd3901ba473f71d42c9a469f0236eaadf3",
        "checked": "2026-10-17",
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        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Tudi",
      "Package": "MSOP-8",
      "Category": "Interface",
      "Pins": "8"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "e9d7e24ac7e5473a132067c62cf600142ffccf658b2086e3870638d6405de80e",
      "rows": [
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          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Control port voltage /RE, DE, DI",
          "symbol": "",
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          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Bus pin input voltage A, B",
          "symbol": "",
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          "typ": null,
          "max": 13,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Receiver output voltage RO",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature range",
          "symbol": "",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
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        },
        {
          "name": "Storage temperature range",
          "symbol": "",
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          "min": -60,
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          "name": "Soldering temperature range",
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        {
          "name": "Continuous power dissipation",
          "symbol": "",
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          "unit": "mW",
          "min": null,
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          "conditions": "SOP8 package",
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        },
        {
          "name": "Supply voltage range",
          "symbol": "VCC",
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          "min": 4.75,
          "typ": null,
          "max": 5.25,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Driver rise/fall time",
          "symbol": "tDR, tDF",
          "kind": "timing",
          "unit": "ns",
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          "typ": 500,
          "max": 700,
          "conditions": "",
          "source_page": 5,
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        {
          "name": "Driver skew |tDPLH - tDPHL|",
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          "min": -100,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Tri-state input leakage current",
          "symbol": "IOZR",
          "kind": "electrical",
          "unit": "uA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "0.4 V < VO < 2.4 V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Logic input current",
          "symbol": "IIN1",
          "kind": "electrical",
          "unit": "uA",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "DE, DI, /RE",
          "source_page": 4,
          "source": "datasheet"
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        {
          "name": "Receiver input current (A, B)",
          "symbol": "IIN2",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 125,
          "conditions": "DE = 0 V, VCC = 0 or 5 V, VIN = 12 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Receiver input current (A, B)",
          "symbol": "IIN2",
          "kind": "electrical",
          "unit": "uA",
          "min": -100,
          "typ": null,
          "max": null,
          "conditions": "DE = 0 V, VCC = 0 or 5 V, VIN = -7 V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Driver output short-circuit current, short to high",
          "symbol": "IOSD1",
          "kind": "electrical",
          "unit": "mA",
          "min": 35,
          "typ": null,
          "max": 250,
          "conditions": "short to 0V~12 V",
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          "min": -250,
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          "conditions": "short to -7V~0V",
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          "min": null,
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          "max": 500,
          "conditions": "/RE=0V or VCC, DE = 0",
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          "source": "datasheet"
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          "name": "Supply current",
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          "typ": 170,
          "max": 400,
          "conditions": "/RE=VCC, DE=VCC",
          "source_page": 5,
          "source": "datasheet"
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          "name": "Shutdown current",
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          "kind": "electrical",
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          "min": null,
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          "max": 10,
          "conditions": "DE=0 V, /RE=VCC",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Shutdown exit time",
          "symbol": "tSHDN",
          "kind": "timing",
          "unit": "ns",
          "min": 50,
          "typ": 200,
          "max": 600,
          "conditions": "/RE=1, DE=0 (NOTE2)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Receiver propagation delay, low to high",
          "symbol": "tRPLH",
          "kind": "timing",
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          "min": null,
          "typ": 127,
          "max": 200,
          "conditions": "VID≥2.0V; rise and fall time VID≤15 ns",
          "source_page": 6,
          "source": "datasheet"
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        {
          "name": "Receiver propagation delay, high to low",
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          "max": 200,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Receiver skew |tRPLH - tRPHL|",
          "symbol": "tSKEW2",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 3,
          "max": 30,
          "conditions": "",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Enable to output low time",
          "symbol": "tRZL",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 20,
          "max": 50,
          "conditions": "CL = 100 pF, S1 closed",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Enable to output high time",
          "symbol": "tRZH",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 20,
          "max": 50,
          "conditions": "CL = 100 pF, S2 closed",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output low to disable time",
          "symbol": "tRLZ",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 20,
          "max": 50,
          "conditions": "CL = 100 pF, S1 closed",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Output high to disable time",
          "symbol": "tRHZ",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 20,
          "max": 50,
          "conditions": "CL = 100 pF, S2 closed",
          "source_page": 6,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_triggers": [
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  "discovery_pitch": "ISL3155EIUZ-T-TUDI (Tudi) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
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