main
Ray Set visibility: public 5ea720b 5h ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "max489esd-t",
  "title": "MAX489ESD+T",
  "brief": "Analog Devices Inc Maxim Integrated RS-485 / RS-422 ICs, SOP-14. 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",
    "max489esd+t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MAX489ESD+T",
    "manufacturer": "Analog Devices Inc Maxim Integrated",
    "package": "SOP-14",
    "pin_count": 14,
    "category": "Interface",
    "subcategory": "RS-485 / RS-422 ICs",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588905397440139264",
    "parts": {
      "symbol": "max489esd-t.kicad_sym",
      "footprint": "max489esd-t.kicad_mod",
      "model_3d": "max489esd-t-hero.glb",
      "model_3d_plain": "max489esd-t-etched.glb",
      "model_3d_step": "max489esd-t-etched.step",
      "model_3d_step_plain": "max489esd-t.step",
      "lbr": "max489esd-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C571492",
      "digikey": "MAX489ESD+TR-ND"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T14:22:35Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "MAX489ESD+TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "N.C.",
        "type": "unconnected",
        "description": "No connect; this pin is not internally connected."
      },
      {
        "number": "2",
        "name": "RO",
        "type": "output",
        "description": "Receiver output: RO is high if A > B by 200mV and low if A < B by 200mV."
      },
      {
        "number": "3",
        "name": "RE",
        "type": "input",
        "description": "Receiver output enable: RO is enabled when RE is low and is high impedance when RE is high."
      },
      {
        "number": "4",
        "name": "DE",
        "type": "input",
        "description": "Driver output enable: outputs Y and Z are enabled when DE is high and are high impedance when DE is low."
      },
      {
        "number": "5",
        "name": "DI",
        "type": "input",
        "description": "Driver input: a low on DI forces Y low and Z high, and a high on DI forces Y high and Z low."
      },
      {
        "number": "6",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device (second ground pin)."
      },
      {
        "number": "8",
        "name": "N.C.",
        "type": "unconnected",
        "description": "No connect; this pin is not internally connected."
      },
      {
        "number": "9",
        "name": "Y",
        "type": "output",
        "description": "Noninverting driver output, enabled when DE is high."
      },
      {
        "number": "10",
        "name": "Z",
        "type": "output",
        "description": "Inverting driver output, enabled when DE is high."
      },
      {
        "number": "11",
        "name": "B",
        "type": "input",
        "description": "Inverting receiver input."
      },
      {
        "number": "12",
        "name": "A",
        "type": "input",
        "description": "Noninverting receiver input."
      },
      {
        "number": "13",
        "name": "N.C.",
        "type": "unconnected",
        "description": "No connect; this pin is not internally connected."
      },
      {
        "number": "14",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive supply, 4.75V ≤ VCC ≤ 5.25V."
      }
    ],
    "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: The pin-function table gives the MAX489/MAX491 14-pin column in a garbled layout, so pin numbers wer; The Figure 3 label order (9 10 12 11 with B A Z Y) conflicts with the table rows (9 = noninverting Y; GND appears on two pins in the 14-pin variant; both are listed as ground in the table."
        ],
        "pages_sent": 17,
        "cost_usd": 0.0964,
        "at": "2026-10-18T14:22:19"
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      "datasheet": {
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        "pages": 17,
        "sha256": "4ab94c4124d89450",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
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    },
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        "seat": "z = 0",
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        "checked": "2026-10-18",
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        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices Inc Maxim Integrated",
      "Package": "SOP-14",
      "Category": "Interface",
      "Pins": "14"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "4ab94c4124d89450d5289ccc28e3c7328f2298cd4c8354a6d69fda7584794ac5",
      "rows": [
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          "name": "Driver Output Voltage (A, B)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
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          "typ": null,
          "max": 12.5,
          "conditions": "",
          "source_page": 2,
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        },
        {
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          "conditions": "",
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          "name": "Control Input Voltage (RE, DE)",
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        {
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          "symbol": "",
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        {
          "name": "Receiver Output Voltage (RO)",
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          "name": "Storage Temperature Range",
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          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 160,
          "conditions": "",
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          "source": "datasheet"
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        {
          "name": "Lead Temperature (soldering)",
          "symbol": "",
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          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "soldering, 10sec",
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          "source": "datasheet"
        },
        {
          "name": "Operating Temperature Range (E grade, MAX489ESD)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "MAX4__E__ grade",
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        },
        {
          "name": "Positive Supply Voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 4.75,
          "typ": null,
          "max": 5.25,
          "conditions": "Pin description, VCC pin",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Receiver Input Resistance",
          "symbol": "RIN",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 12,
          "typ": null,
          "max": null,
          "conditions": "-7V ≤ VCM ≤ 12V, all devices except MAX487/MAX1487",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Receiver Differential Threshold Voltage",
          "symbol": "VTH",
          "kind": "electrical",
          "unit": "V",
          "min": -0.2,
          "typ": null,
          "max": 0.2,
          "conditions": "-7V ≤ VCM ≤ 12V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Receiver Output High Voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 3.5,
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          "max": null,
          "conditions": "IO = -4mA, VID = 200mV",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Receiver Output Low Voltage",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
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          "typ": null,
          "max": 0.4,
          "conditions": "IO = 4mA, VID = -200mV",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Three-State Output Current at Receiver",
          "symbol": "IOZR",
          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "0.4V ≤ VO ≤ 2.4V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Receiver Short-Circuit Current",
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          "kind": "electrical",
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          "typ": null,
          "max": 95,
          "conditions": "0V ≤ VO ≤ VCC",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Differential Driver Output (with load)",
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          "kind": "electrical",
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          "min": 1.5,
          "typ": null,
          "max": 5,
          "conditions": "R = 27Ω (RS-485), Figure 4",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Differential Driver Output (no load)",
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          "kind": "electrical",
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          "conditions": "",
          "source_page": 2,
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        },
        {
          "name": "Change in Magnitude of Driver Common-Mode Output Voltage for Complementary Output States",
          "symbol": "ΔVOD",
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          "max": 0.2,
          "conditions": "R = 27Ω or 50Ω, Figure 4",
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        {
          "name": "Change in Magnitude of Driver Differential Output Voltage for Complementary Output States",
          "symbol": "ΔVOD",
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          "min": null,
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          "max": 0.2,
          "conditions": "R = 27Ω or 50Ω, Figure 4",
          "source_page": 2,
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        {
          "name": "Driver Common-Mode Output Voltage",
          "symbol": "VOC",
          "kind": "electrical",
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          "min": null,
          "typ": null,
          "max": 3,
          "conditions": "R = 27Ω or 50Ω, Figure 4",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input Current (DE, DI, RE)",
          "symbol": "IIN1",
          "kind": "electrical",
          "unit": "µA",
          "min": -2,
          "typ": null,
          "max": 2,
          "conditions": "DE, DI, RE",
          "source_page": 2,
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        },
        {
          "name": "Input Low Voltage",
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          "kind": "electrical",
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          "conditions": "DE, DI, RE",
          "source_page": 2,
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        {
          "name": "Input High Voltage",
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          "kind": "electrical",
          "unit": "V",
          "min": 2,
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          "conditions": "DE, DI, RE",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input Current (A, B)",
          "symbol": "IIN2",
          "kind": "electrical",
          "unit": "mA",
          "min": -0.8,
          "typ": null,
          "max": null,
          "conditions": "VIN = -7V; DE = 0V; VCC = 0V or 5.25V; all devices except MAX487/MAX1487",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Input Current (A, B)",
          "symbol": "IIN2",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "VIN = 12V; DE = 0V; VCC = 0V or 5.25V; all devices except MAX487/MAX1487",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Driver Short-Circuit Current, VO = Low",
          "symbol": "IOSD2",
          "kind": "electrical",
          "unit": "mA",
          "min": 35,
          "typ": null,
          "max": 250,
          "conditions": "-7V ≤ VO ≤ 12V (Note 4)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Driver Short-Circuit Current, VO = High",
          "symbol": "IOSD1",
          "kind": "electrical",
          "unit": "mA",
          "min": 35,
          "typ": null,
          "max": 250,
          "conditions": "-7V ≤ VO ≤ 12V (Note 4)",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Driver Output Skew to Output",
          "symbol": "tSKEW",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": 100,
          "max": 800,
          "conditions": "Figures 6 and 8, RDIFF = 54Ω, CL1 = CL2 = 100pF",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Driver Input to Output",
          "symbol": "tPLH, tPHL",
          "kind": "timing",
          "unit": "ns",
          "min": 250,
          "typ": 800,
          "max": 2000,
          "conditions": "Figures 6 and 8, RDIFF = 54Ω, CL1 = CL2 = 100pF",
          "source_page": 4,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
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    "readme",
    "breadcrumbs",
    "info"
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  "discovery_triggers": [
    "max489esd+t"
  ],
  "discovery_pitch": "MAX489ESD+T (Analog Devices Inc Maxim Integrated) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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