USB2244I-AEZG-06-TR

{
  "slug": "usb2244i-aezg-06-tr",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech Interface - Specialized, QFN-36(6x6). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface ics",
    "usb2244i-aezg-06-tr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "usb2244i-aezg-06-tr.kicad_sym",
    "usb2244i-aezg-06-tr.kicad_mod",
    "usb2244i-aezg-06-tr.glb",
    "usb2244i-aezg-06-tr.step",
    "usb2244i-aezg-06-tr.lbr",
    "docs/hero.png",
    "docs/usb2244i-aezg-06-tr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "usb2244i-aezg-06-tr-hero.glb",
    "usb2244i-aezg-06-tr-hero.overlay.json",
    "usb2244i-aezg-06-tr-etched.glb"
  ],
  "component": {
    "mpn": "USB2244I-AEZG-06-TR",
    "manufacturer": "Microchip Tech",
    "package": "QFN-36(6x6)",
    "pin_count": 37,
    "category": "Interface ICs",
    "subcategory": "Interface - Specialized",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/c6a3c9320841ce33e94e3170a2b21abe.pdf",
    "parts": {
      "symbol": "usb2244i-aezg-06-tr.kicad_sym",
      "footprint": "usb2244i-aezg-06-tr.kicad_mod",
      "model_3d": "usb2244i-aezg-06-tr-hero.glb",
      "model_3d_plain": "usb2244i-aezg-06-tr-etched.glb",
      "model_3d_step": "usb2244i-aezg-06-tr-etched.step",
      "model_3d_step_plain": "usb2244i-aezg-06-tr.step",
      "lbr": "usb2244i-aezg-06-tr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2674043",
      "digikey": "USB2244I-AEZG-06-TR-ND",
      "mouser": "579-USB2244IAEZG06TR"
    },
    "distributor_check": {
      "checked_at": "2026-11-09T05:42:34Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "USB2244I-AEZG-06-TR-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "579-USB2244IAEZG06TR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "LED",
        "type": "bidirectional",
        "description": "Media activity LED output (I/O12 buffer, 12 mA sink and source)."
      },
      {
        "number": "2",
        "name": "USB+",
        "type": "bidirectional",
        "description": "USB bus data plus signal, analog I/O as defined in the USB 2.0 Specification."
      },
      {
        "number": "3",
        "name": "USB-",
        "type": "bidirectional",
        "description": "USB bus data minus signal, analog I/O as defined in the USB 2.0 Specification."
      },
      {
        "number": "4",
        "name": "SD_D1",
        "type": "bidirectional",
        "description": "SD/MMC bi-directional data bit 1 with weak internal pull-up, 12 mA sink and source."
      },
      {
        "number": "5",
        "name": "SD_D0",
        "type": "bidirectional",
        "description": "SD/MMC bi-directional data bit 0 with weak internal pull-up, 12 mA sink and source."
      },
      {
        "number": "6",
        "name": "VDD33",
        "type": "power_in",
        "description": "3.3 V power and regulator input."
      },
      {
        "number": "7",
        "name": "SD_D7",
        "type": "bidirectional",
        "description": "SD/MMC bi-directional data bit 7 with weak internal pull-up, 12 mA sink and source."
      },
      {
        "number": "8",
        "name": "SD_D6",
        "type": "bidirectional",
        "description": "SD/MMC bi-directional data bit 6 with weak internal pull-up, 12 mA sink and source."
      },
      {
        "number": "9",
        "name": "SD_CLK",
        "type": "output",
        "description": "Output clock to the SD/MMC device with software-configurable frequency, 12 mA source."
      },
      {
        "number": "10",
        "name": "SD_D5",
        "type": "bidirectional",
        "description": "SD/MMC bi-directional data bit 5 with weak internal pull-up, 12 mA sink and source."
      },
      {
        "number": "11",
        "name": "SD_CMD",
        "type": "bidirectional",
        "description": "Bi-directional command signal to the CMD pin of the SD/MMC device with weak internal pull-up, 12 mA sink and source."
      },
      {
        "number": "12",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; no trace or signal should be routed or attached to this pin."
      },
      {
        "number": "13",
        "name": "VDD18",
        "type": "power_in",
        "description": "+1.8 V core power; must have a 1.0 µF ± 20% (ESR < 0.1 Ω) capacitor to VSS."
      },
      {
        "number": "14",
        "name": "VDD33",
        "type": "power_in",
        "description": "3.3 V power and regulator input."
      },
      {
        "number": "15",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; no trace or signal should be routed or attached to this pin."
      },
      {
        "number": "16",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; no trace or signal should be routed or attached to this pin."
      },
      {
        "number": "17",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; no trace or signal should be routed or attached to this pin."
      },
      {
        "number": "18",
        "name": "RESET_N",
        "type": "input",
        "description": "Active-low Schmitt-trigger chip reset input; the low pulse should be at least 1 µs wide."
      },
      {
        "number": "19",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected on USB2244/44I (listed without a signal name in the reset-state table)."
      },
      {
        "number": "20",
        "name": "SD_D4",
        "type": "bidirectional",
        "description": "SD/MMC bi-directional data bit 4 with weak internal pull-up, 12 mA sink and source."
      },
      {
        "number": "21",
        "name": "CRD_PWR",
        "type": "bidirectional",
        "description": "Card power drive of 3.3 V at either 100 mA or 200 mA from the internal FET (I/O200 buffer)."
      },
      {
        "number": "22",
        "name": "VDD33",
        "type": "power_in",
        "description": "3.3 V power and regulator input."
      },
      {
        "number": "23",
        "name": "SD_D3",
        "type": "bidirectional",
        "description": "SD/MMC bi-directional data bit 3 with weak internal pull-up, 12 mA sink and source."
      },
      {
        "number": "24",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected on USB2244/44I (listed without a signal name in the reset-state table)."
      },
      {
        "number": "25",
        "name": "SD_D2",
        "type": "bidirectional",
        "description": "SD/MMC bi-directional data bit 2 with weak internal pull-up, 12 mA sink and source."
      },
      {
        "number": "26",
        "name": "SD_nCD",
        "type": "input",
        "description": "SD card detect input, enabled as an input with pull-up after reset."
      },
      {
        "number": "27",
        "name": "RXD / SDA",
        "type": "bidirectional",
        "description": "UART RXD input (custom firmware required) or SDA data pin to an external serial EEPROM (I/O12)."
      },
      {
        "number": "28",
        "name": "TEST",
        "type": "input",
        "description": "Test input; tie to ground for normal operation."
      },
      {
        "number": "29",
        "name": "NC",
        "type": "unconnected",
        "description": "Not connected on USB2244/44I (listed without a signal name in the reset-state table)."
      },
      {
        "number": "30",
        "name": "SD_WP",
        "type": "input",
        "description": "SD write protect detection signal."
      },
      {
        "number": "31",
        "name": "TXD / SCK",
        "type": "output",
        "description": "UART TXD output (custom firmware required) or clock output to an external EEPROM (O12)."
      },
      {
        "number": "32",
        "name": "XTAL2",
        "type": "output",
        "description": "24 MHz crystal output terminal, left open when an external clock drives XTAL1 (CLKIN)."
      },
      {
        "number": "33",
        "name": "XTAL1 (CLKIN)",
        "type": "input",
        "description": "24 MHz crystal terminal or external 24 MHz clock input when a crystal is not used."
      },
      {
        "number": "34",
        "name": "VDD18PLL",
        "type": "power_in",
        "description": "+1.8 V filtered analog power for the internal PLL; must have a 1.0 µF ± 20% (ESR < 0.1 Ω) capacitor to VSS."
      },
      {
        "number": "35",
        "name": "RBIAS",
        "type": "passive",
        "description": "USB transceiver bias pin; a 12.0 kΩ ± 1.0% resistor is connected from VSS to this pin."
      },
      {
        "number": "36",
        "name": "VDDA33",
        "type": "power_in",
        "description": "3.3 V analog power."
      },
      {
        "number": "37",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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: Table 6-1 pin-number columns are garbled in the extracted text. Pin numbers for the USB2244 column w; The datasheet gives no explicit pin number for the exposed pad. '37' is an assumed designator for th; Pins 19, 24 and 29 appear in the reset table with blank names. They are inferred to be NC because th",
          "1/37 pins cited to the wrong page (name found elsewhere): ['27:RXD / SDA@p16']",
          "1/37 pin names appear NOWHERE in the datasheet text: ['2:USB+@p15']"
        ],
        "pages_sent": 22,
        "cost_usd": 0.1461,
        "at": "2026-11-09T05:42:24"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/c6a3c9320841ce33e94e3170a2b21abe.pdf",
        "pages": 43,
        "sha256": "3e98a6a324cc56bd",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 37,
        "described": 37,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "usb2244i-aezg-06-tr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          6.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6212c4fd2463ccb7c6ae2c35f5e24c80884153fcaeaf8e86549c0e49087bc8bb",
        "checked": "2026-11-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "usb2244i-aezg-06-tr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          6.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "546c14045544fe2b707fe90cb869adc30e497908d78a2425f4cf5e8920e7afd1",
        "checked": "2026-11-09",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}