main
Ray Set visibility: public 934ca75 8d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "ds4520e",
  "title": "DS4520E+",
  "brief": "Analog Devices Inc Maxim Integrated I/O Expanders, TSSOP-16. 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",
    "interface",
    "ds4520e+",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "DS4520E+",
    "manufacturer": "Analog Devices Inc Maxim Integrated",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Interface",
    "subcategory": "I/O Expanders",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588904163858665472",
    "parts": {
      "symbol": "ds4520e.kicad_sym",
      "footprint": "ds4520e.kicad_mod",
      "model_3d": "ds4520e-hero.glb",
      "model_3d_plain": "ds4520e-etched.glb",
      "model_3d_step": "ds4520e-etched.step",
      "model_3d_step_plain": "ds4520e.step",
      "lbr": "ds4520e.lbr"
    },
    "distributor_links": {
      "lcsc": "C2762954",
      "digikey": "DS4520E+-ND",
      "mouser": "700-DS4520E"
    },
    "distributor_check": {
      "checked_at": "2026-10-19T07:38:46Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "DS4520E+-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "700-DS4520E",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "I/O_0",
        "type": "bidirectional",
        "description": "Bidirectional I/O pin with an open-drain output that can sink up to 12mA and a selectable internal pullup."
      },
      {
        "number": "2",
        "name": "I/O_1",
        "type": "bidirectional",
        "description": "Bidirectional I/O pin with an open-drain output that can sink up to 12mA and a selectable internal pullup."
      },
      {
        "number": "3",
        "name": "I/O_2",
        "type": "bidirectional",
        "description": "Bidirectional I/O pin with an open-drain output that can sink up to 12mA and a selectable internal pullup."
      },
      {
        "number": "4",
        "name": "I/O_3",
        "type": "bidirectional",
        "description": "Bidirectional I/O pin with an open-drain output that can sink up to 12mA and a selectable internal pullup."
      },
      {
        "number": "5",
        "name": "I/O_4",
        "type": "bidirectional",
        "description": "Bidirectional I/O pin with an open-drain output that can sink up to 12mA and a selectable internal pullup."
      },
      {
        "number": "6",
        "name": "A0",
        "type": "input",
        "description": "I2C address input; A0, A1, and A2 determine the I2C slave address, with GND giving 0 and VCC giving 1 in each bit position."
      },
      {
        "number": "7",
        "name": "A1",
        "type": "input",
        "description": "I2C address input; A0, A1, and A2 determine the I2C slave address, with GND giving 0 and VCC giving 1 in each bit position."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply voltage, specified from +2.7V to +5.5V."
      },
      {
        "number": "9",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C serial data open-drain input/output."
      },
      {
        "number": "10",
        "name": "SCL",
        "type": "input",
        "description": "I2C serial clock input, specified for clock frequencies from 0 to 400kHz."
      },
      {
        "number": "11",
        "name": "A2",
        "type": "input",
        "description": "I2C address input; A0, A1, and A2 determine the I2C slave address, with GND giving 0 and VCC giving 1 in each bit position."
      },
      {
        "number": "12",
        "name": "I/O_5",
        "type": "bidirectional",
        "description": "Bidirectional I/O pin with an open-drain output that can sink up to 12mA and a selectable internal pullup."
      },
      {
        "number": "13",
        "name": "I/O_6",
        "type": "bidirectional",
        "description": "Bidirectional I/O pin with an open-drain output that can sink up to 12mA and a selectable internal pullup."
      },
      {
        "number": "14",
        "name": "I/O_7",
        "type": "bidirectional",
        "description": "Bidirectional I/O pin with an open-drain output that can sink up to 12mA and a selectable internal pullup."
      },
      {
        "number": "15",
        "name": "I/O_8",
        "type": "bidirectional",
        "description": "Bidirectional I/O pin with an open-drain output that can sink up to 12mA and a selectable internal pullup."
      },
      {
        "number": "16",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      }
    ],
    "provenance": {
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        "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": [],
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        "cost_usd": 0.0669,
        "at": "2026-10-19T07:38:30"
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        "pages": 11,
        "sha256": "7a03872d5183fb98",
        "source_tier": "lcsc"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
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        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
        "checked": "2026-10-19",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Analog Devices Inc Maxim Integrated",
      "Package": "TSSOP-16",
      "Category": "Interface",
      "Pins": "16"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "7a03872d5183fb9870d58b20cb2b16a5c217023ea37576d39255c810e935e45d",
      "rows": [
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          "name": "Supply Voltage",
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          "kind": "recommended_operating",
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          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "(Note 1)",
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        {
          "name": "Voltage on VCC, SDA, and SCL Pins Relative to Ground",
          "symbol": "",
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        {
          "name": "Voltage on A0, A1, A2, and I/O_n Relative to Ground",
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          "name": "EEPROM Programming Temperature Range",
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          "name": "Storage Temperature Range",
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        {
          "name": "Input Leakage",
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          "unit": "µA",
          "min": -1,
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        {
          "name": "Input Current each I/O Pin",
          "symbol": "II/O",
          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": null,
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          "conditions": "0.4V < VI/O < 0.9VCC (Note 3)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Low-Level Output Voltage (SDA)",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 0.4,
          "conditions": "3mA sink current",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Low-Level Output Voltage (SDA)",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 0.6,
          "conditions": "6mA sink current",
          "source_page": 2,
          "source": "datasheet"
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        {
          "name": "Standby Current",
          "symbol": "ISTBY",
          "kind": "electrical",
          "unit": "µA",
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          "typ": 2,
          "max": 10,
          "conditions": "(Note 2)",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "I/O Pin Pullup Resistors",
          "symbol": "RPU",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 4,
          "typ": 5.5,
          "max": 7.5,
          "conditions": "",
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        },
        {
          "name": "I/O Capacitance",
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          "kind": "electrical",
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          "conditions": "(Note 4)",
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        },
        {
          "name": "SCL Clock Frequency",
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          "kind": "timing",
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        {
          "name": "Bus Free Time Between Stop and Start Conditions",
          "symbol": "tBUF",
          "kind": "timing",
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          "min": 1.3,
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        {
          "name": "Hold Time (Repeated) Start Condition",
          "symbol": "tHD:STA",
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          "typ": null,
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        },
        {
          "name": "Low Period of SCL",
          "symbol": "tLOW",
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        {
          "name": "High Period of SCL",
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        {
          "name": "Data Setup Time",
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        {
          "name": "Start Setup Time",
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        {
          "name": "SDA and SCL Rise Time",
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        },
        {
          "name": "SDA and SCL Fall Time",
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        },
        {
          "name": "Stop Setup Time",
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        },
        {
          "name": "SDA and SCL Capacitive Loading",
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        },
        {
          "name": "EEPROM Write Time",
          "symbol": "tWR",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 10,
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          "conditions": "(Note 7)",
          "source_page": 3,
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        },
        {
          "name": "EEPROM Writes",
          "symbol": "",
          "kind": "electrical",
          "unit": "",
          "min": 50000,
          "typ": null,
          "max": null,
          "conditions": "+70°C (Note 4)",
          "source_page": 3,
          "source": "datasheet"
        }
      ]
    }
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  "discovery_triggers": [
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  ],
  "discovery_pitch": "DS4520E+ (Analog Devices Inc Maxim Integrated) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
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}