PI4IOE5V9538LEX

{
  "slug": "pi4ioe5v9538lex",
  "version": "0.1.0",
  "type": "component",
  "description": "Diodes Incorporated I/O Expanders, TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip-uart-485-232",
    "pi4ioe5v9538lex",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "pi4ioe5v9538lex.kicad_sym",
    "pi4ioe5v9538lex.kicad_mod",
    "pi4ioe5v9538lex.glb",
    "pi4ioe5v9538lex.step",
    "pi4ioe5v9538lex.lbr",
    "docs/hero.png",
    "docs/pi4ioe5v9538lex-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "pi4ioe5v9538lex-hero.glb",
    "pi4ioe5v9538lex-hero.overlay.json",
    "pi4ioe5v9538lex-etched.glb"
  ],
  "component": {
    "mpn": "PI4IOE5V9538LEX",
    "manufacturer": "Diodes Incorporated",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "I/O Expanders",
    "datasheet": "https://www.diodes.com/assets/Datasheets/PI4IOE5V9538LEX.pdf",
    "parts": {
      "symbol": "pi4ioe5v9538lex.kicad_sym",
      "footprint": "pi4ioe5v9538lex.kicad_mod",
      "model_3d": "pi4ioe5v9538lex-hero.glb",
      "model_3d_plain": "pi4ioe5v9538lex-etched.glb",
      "model_3d_step": "pi4ioe5v9538lex-etched.step",
      "model_3d_step_plain": "pi4ioe5v9538lex.step",
      "lbr": "pi4ioe5v9538lex.lbr"
    },
    "distributor_links": {
      "lcsc": "C2669704",
      "digikey": "31-PI4IOE5V9538LEXTR-ND",
      "mouser": "729-PI4IOE5V9538LEX"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T16:27:20Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "31-PI4IOE5V9538LEXTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "729-PI4IOE5V9538LEX",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "A0",
        "type": "input",
        "description": "Address input 0 that, together with A1, sets the fixed I2C-bus address so up to four devices can share the bus."
      },
      {
        "number": "2",
        "name": "A1",
        "type": "input",
        "description": "Address input 1 that, together with A0, sets the fixed I2C-bus address so up to four devices can share the bus."
      },
      {
        "number": "3",
        "name": "RESET",
        "type": "input",
        "description": "Active-low reset input; holding it LOW for at least tw(rst) (25 ns) resets registers and the state machine to defaults, and it needs a pull-up if not actively driven."
      },
      {
        "number": "4",
        "name": "IO0",
        "type": "bidirectional",
        "description": "Input/output 0, 5V tolerant, configured as input by default at reset."
      },
      {
        "number": "5",
        "name": "IO1",
        "type": "bidirectional",
        "description": "Input/output 1, 5V tolerant, configured as input by default at reset."
      },
      {
        "number": "6",
        "name": "IO2",
        "type": "bidirectional",
        "description": "Input/output 2, 5V tolerant, configured as input by default at reset."
      },
      {
        "number": "7",
        "name": "IO3",
        "type": "bidirectional",
        "description": "Input/output 3, 5V tolerant, configured as input by default at reset."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Supply ground."
      },
      {
        "number": "9",
        "name": "IO4",
        "type": "bidirectional",
        "description": "Input/output 4, 5V tolerant, configured as input by default at reset."
      },
      {
        "number": "10",
        "name": "IO5",
        "type": "bidirectional",
        "description": "Input/output 5, 5V tolerant, configured as input by default at reset."
      },
      {
        "number": "11",
        "name": "IO6",
        "type": "bidirectional",
        "description": "Input/output 6, 5V tolerant, configured as input by default at reset."
      },
      {
        "number": "12",
        "name": "IO7",
        "type": "bidirectional",
        "description": "Input/output 7, 5V tolerant, configured as input by default at reset."
      },
      {
        "number": "13",
        "name": "INT",
        "type": "output",
        "description": "Active-low open-drain interrupt output that signals a change of state on an input pin, with IOL of 3 mA min at VOL=0.4V."
      },
      {
        "number": "14",
        "name": "SCL",
        "type": "input",
        "description": "Serial clock line of the I2C-bus/SMBus, operating from 0 to 400 kHz with VIH 0.7VCC min."
      },
      {
        "number": "15",
        "name": "SDA",
        "type": "bidirectional",
        "description": "Serial data line of the I2C-bus/SMBus, with IOL of 3 mA min at VOL=0.4V."
      },
      {
        "number": "16",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply, 2.3V to 5.5V operating range."
      }
    ],
    "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: The pin table lists SCL as type I/O, but SCL is an input on an I2C target; I classed it as input. Th"
        ],
        "pages_sent": 15,
        "cost_usd": 0.1119,
        "at": "2026-10-30T16:27:09"
      },
      "datasheet": {
        "url": "https://www.diodes.com/assets/Datasheets/PI4IOE5V9538LEX.pdf",
        "pages": 15,
        "sha256": "24c73e5783bade41",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "pi4ioe5v9538lex.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "pi4ioe5v9538lex-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          1.1
        ],
        "zmin_mm": -0.0,
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        "sha256": "e5d3154a69575b3606a370604aedb63e5a41d1fcef9a4d52b41e2ad1290bb2f1",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}