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Ray Set visibility: public 31cdd38 1d ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "pi4ioe5v9538lex",
  "title": "PI4IOE5V9538LEX",
  "brief": "Diodes Incorporated 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",
    "communication interface chip-uart-485-232",
    "pi4ioe5v9538lex",
    "factory-2.0.0",
    "extractor-text"
  ],
  "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,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 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": [
          6.4,
          5,
          1.1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "e5d3154a69575b3606a370604aedb63e5a41d1fcef9a4d52b41e2ad1290bb2f1",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Diodes Incorporated",
      "Package": "TSSOP-16",
      "Category": "Communication Interface Chip/UART/485/232",
      "Pins": "16"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "24c73e5783bade41e7b67605329a7a8dfcc3d006bccbfbde272b3ac01c9d24ec",
      "rows": [
        {
          "name": "Supply voltage",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.3,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply current, operating",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 40,
          "max": 60,
          "conditions": "Operating mode; VCC = 5.5 V; no load; fSCL= 400 kHz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Supply current, operating",
          "symbol": "ICC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 10,
          "max": 20,
          "conditions": "Operating mode; VCC = 2.3 V; no load; fSCL= 400 kHz",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Standby current",
          "symbol": "Istb",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 0.25,
          "max": 1,
          "conditions": "Standby mode; VCC = 5.5 V; no load; VI = GND; fSCL= 0 kHz; I/O = inputs",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Power-on reset voltage",
          "symbol": "VPOR",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.16,
          "max": 1.41,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SCL/SDA low level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 0.3,
          "conditions": "max printed as +0.3VCC",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SCL/SDA high level input voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 0.7,
          "typ": null,
          "max": 5.5,
          "conditions": "min printed as 0.7VCC",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SDA low level output current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": 3,
          "typ": 7,
          "max": null,
          "conditions": "VOL=0.4V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SCL/SDA leakage current",
          "symbol": "IL",
          "kind": "electrical",
          "unit": "μA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VI=VCC=GND",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "SCL/SDA input capacitance",
          "symbol": "Ci",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 5,
          "max": 10,
          "conditions": "VI =GND",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "I/O low level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 0.81,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "I/O high level input voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "I/O low level output current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": 8,
          "typ": 10,
          "max": null,
          "conditions": "VCC = 2.3 V; VOL = 0.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "I/O low level output current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": 10,
          "typ": 13,
          "max": null,
          "conditions": "VCC = 2.3 V; VOL = 0.7 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "I/O low level output current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": 8,
          "typ": 14,
          "max": null,
          "conditions": "VCC = 3.0 V; VOL = 0.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "I/O low level output current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": 10,
          "typ": 19,
          "max": null,
          "conditions": "VCC = 3.0 V; VOL = 0.7 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "I/O low level output current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": 8,
          "typ": 17,
          "max": null,
          "conditions": "VCC = 4.5 V; VOL = 0.5 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "I/O low level output current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": 10,
          "typ": 24,
          "max": null,
          "conditions": "VCC=4.5 V; VOL = 0.7 V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "High level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": null,
          "conditions": "IOH=-8mA;VCC=2.3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "High level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.7,
          "typ": null,
          "max": null,
          "conditions": "IOH=-10mA;VCC=2.3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "High level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.6,
          "typ": null,
          "max": null,
          "conditions": "IOH=-8mA;VCC=3.0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "High level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.5,
          "typ": null,
          "max": null,
          "conditions": "IOH=-10mA;VCC=3.0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "High level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4.1,
          "typ": null,
          "max": null,
          "conditions": "IOH=-8mA;VCC=4.75V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "High level output voltage",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 4,
          "typ": null,
          "max": null,
          "conditions": "IOH=-10mA;VCC=4.75V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current",
          "symbol": "ILI",
          "kind": "electrical",
          "unit": "μA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VCC=3.6V; VI=VCC=GND",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "I/O input capacitance",
          "symbol": "Ci",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 5,
          "max": 10,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "INT low level output current",
          "symbol": "IOL",
          "kind": "electrical",
          "unit": "mA",
          "min": 3,
          "typ": 13,
          "max": null,
          "conditions": "VOL=0.4V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "INT output current (labelled High level input voltage)",
          "symbol": "IOH",
          "kind": "electrical",
          "unit": "μA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VOL=0.4V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "A0/A1/RESET low level input voltage",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 0.81,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "A0/A1/RESET high level input voltage",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "A0/A1/RESET input leakage current",
          "symbol": "IL",
          "kind": "electrical",
          "unit": "μA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VI=VCC=GND",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "SCL clock frequency (fast mode)",
          "symbol": "fSCL",
          "kind": "timing",
          "unit": "kHz",
          "min": 0,
          "typ": null,
          "max": 400,
          "conditions": "Fast mode I2C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Bus free time STOP to START (fast mode)",
          "symbol": "tBUF",
          "kind": "timing",
          "unit": "μs",
          "min": 1.3,
          "typ": null,
          "max": null,
          "conditions": "Fast mode I2C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Hold time repeated START (fast mode)",
          "symbol": "tHD;STA",
          "kind": "timing",
          "unit": "μs",
          "min": 0.6,
          "typ": null,
          "max": null,
          "conditions": "Fast mode I2C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Set-up time repeated START (fast mode)",
          "symbol": "tSU;STA",
          "kind": "timing",
          "unit": "μs",
          "min": 0.6,
          "typ": null,
          "max": null,
          "conditions": "Fast mode I2C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Set-up time STOP (fast mode)",
          "symbol": "tSU;STO",
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