XR21B1424IV64TR-F

{
  "slug": "xr21b1424iv64tr-f",
  "version": "0.1.0",
  "type": "component",
  "description": "MaxLinear USB ICs, LQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "interface ics",
    "xr21b1424iv64tr-f",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "xr21b1424iv64tr-f.kicad_sym",
    "xr21b1424iv64tr-f.kicad_mod",
    "xr21b1424iv64tr-f.glb",
    "xr21b1424iv64tr-f.step",
    "xr21b1424iv64tr-f.lbr",
    "docs/hero.png",
    "docs/xr21b1424iv64tr-f-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "xr21b1424iv64tr-f-hero.glb",
    "xr21b1424iv64tr-f-hero.overlay.json",
    "xr21b1424iv64tr-f-etched.glb"
  ],
  "component": {
    "mpn": "XR21B1424IV64TR-F",
    "manufacturer": "MaxLinear",
    "package": "LQFP-64(10x10)",
    "pin_count": 64,
    "category": "Interface ICs",
    "subcategory": "USB ICs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/13a922d9218161f27ed10ea23c4866da.pdf",
    "parts": {
      "symbol": "xr21b1424iv64tr-f.kicad_sym",
      "footprint": "xr21b1424iv64tr-f.kicad_mod",
      "model_3d": "xr21b1424iv64tr-f-hero.glb",
      "model_3d_plain": "xr21b1424iv64tr-f-etched.glb",
      "model_3d_step": "xr21b1424iv64tr-f-etched.step",
      "model_3d_step_plain": "xr21b1424iv64tr-f.step",
      "lbr": "xr21b1424iv64tr-f.lbr"
    },
    "distributor_links": {
      "lcsc": "C2678066",
      "digikey": "1016-XR21B1424IV64TR-FTR-ND",
      "mouser": "701-21B1424IV64TRF"
    },
    "distributor_check": {
      "checked_at": "2026-11-02T19:18:16Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "1016-XR21B1424IV64TR-FTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "701-21B1424IV64TRF",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "RXA",
        "type": "input",
        "description": "UART channel A receive data input."
      },
      {
        "number": "2",
        "name": "GPIOA5/RTSA#/RS485A",
        "type": "bidirectional",
        "description": "GPIO, UART RTS output (active low) or auto RS-485 half-duplex control; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "3",
        "name": "GPIOA4/CTSA#",
        "type": "bidirectional",
        "description": "GPIO or UART CTS input (active low); defaults to GPIO input with internal pull-up."
      },
      {
        "number": "4",
        "name": "GPIOA3/DTRA#",
        "type": "bidirectional",
        "description": "GPIO or UART DTR push-pull output (active low); defaults to GPIO input with internal pull-up."
      },
      {
        "number": "5",
        "name": "GPIOA2/DSRA#",
        "type": "bidirectional",
        "description": "GPIO or UART DSR input (active low); defaults to GPIO input with internal pull-up."
      },
      {
        "number": "6",
        "name": "GPIOA1/CDA#",
        "type": "bidirectional",
        "description": "GPIO or UART carrier-detect input (active low); defaults to GPIO input with internal pull-up."
      },
      {
        "number": "7",
        "name": "GPIOA0/RIA#/RWKA#",
        "type": "bidirectional",
        "description": "GPIO, UART ring-indicator input (active low) or remote wakeup input signaled on a falling edge; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "8",
        "name": "GND",
        "type": "power_in",
        "description": "Power supply common, ground."
      },
      {
        "number": "9",
        "name": "USBD+",
        "type": "bidirectional",
        "description": "USB differential data positive with USB 2.0 compliant internal pull-up resistor and ±15kV HBM ESD protection."
      },
      {
        "number": "10",
        "name": "USBD-",
        "type": "bidirectional",
        "description": "USB differential data negative with ±15kV HBM ESD protection."
      },
      {
        "number": "11",
        "name": "VIO",
        "type": "power_in",
        "description": "I/O voltage input to the UART/GPIO pins, must be between 1.8 and 3.6V; may be tied to VCC if VCC_REG is 5V."
      },
      {
        "number": "12",
        "name": "VCC",
        "type": "power_in",
        "description": "3.3V power to the device, or 3.3V output (up to 200 mA including the device) when VCC_REG is 5V; decouple with at least 4.7µF ceramic."
      },
      {
        "number": "13",
        "name": "VCC_REG",
        "type": "power_in",
        "description": "5V or 3.3V power input to the device; in bus-powered mode connect to VBUS and VBUS_SENSE, with 1µF to 10µF decoupling."
      },
      {
        "number": "14",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "15",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "16",
        "name": "VBUS_SENSE",
        "type": "input",
        "description": "Must be connected to USB host VBUS to disable the USBD+ pull-up when VBUS is absent; decouple with a 4.7µF tantalum capacitor."
      },
      {
        "number": "17",
        "name": "RESET#",
        "type": "bidirectional",
        "description": "Active-low open-drain reset output asserted at power-on or device reset; as input must be asserted at least 15µs to reset, with weak internal pull-up."
      },
      {
        "number": "18",
        "name": "USB_STAT2",
        "type": "output",
        "description": "Open-drain USB status output like USB_STAT1, default active low asserted when the device is suspended; configurable via PIN_CFG_USB_STAT2."
      },
      {
        "number": "19",
        "name": "GPIOC9/RXTC",
        "type": "bidirectional",
        "description": "GPIO or UART receive data indicator toggling at ~10Hz while receiving; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "20",
        "name": "GPIOC8/TXTC",
        "type": "bidirectional",
        "description": "GPIO or UART transmit data indicator toggling at ~10Hz while transmitting; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "21",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect."
      },
      {
        "number": "22",
        "name": "GPIOC7/RS485C",
        "type": "bidirectional",
        "description": "GPIO or RS-485 half-duplex enable output; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "23",
        "name": "GPIOC6/CLKC",
        "type": "bidirectional",
        "description": "GPIO or clock/pulse output; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "24",
        "name": "TXC",
        "type": "output",
        "description": "UART channel C transmit data output."
      },
      {
        "number": "25",
        "name": "USB_STAT1",
        "type": "output",
        "description": "USB status output asserted on USB reset, suspend or when it is not safe to draw the requested current; default active high on suspend, selectable via PIN_CFG_STAT1."
      },
      {
        "number": "26",
        "name": "RXC",
        "type": "input",
        "description": "UART channel C receive data input."
      },
      {
        "number": "27",
        "name": "GPIOC5/RTSC#/RS485C",
        "type": "bidirectional",
        "description": "GPIO, UART RTS output (active low) or auto RS-485 half-duplex control; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "28",
        "name": "GPIOC4/CTSC#",
        "type": "bidirectional",
        "description": "GPIO or UART CTS input (active low); defaults to GPIO input with internal pull-up."
      },
      {
        "number": "29",
        "name": "GPIOC3/DTRC#",
        "type": "bidirectional",
        "description": "GPIO or UART DTR push-pull output (active low); defaults to GPIO input with internal pull-up."
      },
      {
        "number": "30",
        "name": "GPIOC2/DSRC#",
        "type": "bidirectional",
        "description": "GPIO or UART DSR input (active low); defaults to GPIO input with internal pull-up."
      },
      {
        "number": "31",
        "name": "GPIOC1/CDC#",
        "type": "bidirectional",
        "description": "GPIO or UART carrier-detect input (active low); defaults to GPIO input with internal pull-up."
      },
      {
        "number": "32",
        "name": "TEST#",
        "type": "input",
        "description": "Test mode pin that must be left open or pulled high to VIO for normal operation."
      },
      {
        "number": "33",
        "name": "GPIOC0/RIC#/RWKC#",
        "type": "bidirectional",
        "description": "GPIO, UART ring-indicator input (active low) or remote wakeup input signaled on a falling edge; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "34",
        "name": "GPIOB9/RXTB",
        "type": "bidirectional",
        "description": "GPIO or UART receive data indicator toggling at ~10Hz while receiving; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "35",
        "name": "GPIOB8/TXTB",
        "type": "bidirectional",
        "description": "GPIO or UART transmit data indicator toggling at ~10Hz while transmitting; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "36",
        "name": "GPIOB7/RS485B",
        "type": "bidirectional",
        "description": "GPIO or auto RS-485 half-duplex control; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "37",
        "name": "GPIOB6/CLKB",
        "type": "bidirectional",
        "description": "GPIO or clock/pulse output; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "38",
        "name": "VIO",
        "type": "power_in",
        "description": "I/O voltage input to the UART/GPIO pins, must be between 1.8 and 3.6V; may be tied to VCC if VCC_REG is 5V."
      },
      {
        "number": "39",
        "name": "GND",
        "type": "power_in",
        "description": "Power supply common, ground."
      },
      {
        "number": "40",
        "name": "TXB",
        "type": "output",
        "description": "UART channel B transmit data output."
      },
      {
        "number": "41",
        "name": "RXB",
        "type": "input",
        "description": "UART channel B receive data input."
      },
      {
        "number": "42",
        "name": "GPIOB5/RTSB#/RS485B",
        "type": "bidirectional",
        "description": "GPIO, UART RTS output (active low) or auto RS-485 half-duplex control; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "43",
        "name": "GPIOB4/CTSB#",
        "type": "bidirectional",
        "description": "GPIO or UART CTS input (active low); defaults to GPIO input with internal pull-up."
      },
      {
        "number": "44",
        "name": "GPIOB3/DTRB#",
        "type": "bidirectional",
        "description": "GPIO or UART DTR push-pull output (active low); defaults to GPIO input with internal pull-up."
      },
      {
        "number": "45",
        "name": "GPIOB2/DSRB#",
        "type": "bidirectional",
        "description": "GPIO or UART DSR input (active low); defaults to GPIO input with internal pull-up."
      },
      {
        "number": "46",
        "name": "GPIOB1/CDB#",
        "type": "bidirectional",
        "description": "GPIO or UART carrier-detect input (active low); defaults to GPIO input with internal pull-up."
      },
      {
        "number": "47",
        "name": "GPIOB0/RIB#/RWKB#",
        "type": "bidirectional",
        "description": "GPIO, UART ring-indicator input (active low) or remote wakeup input signaled on a falling edge; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "48",
        "name": "GPIOD9/RXTD",
        "type": "bidirectional",
        "description": "GPIO or UART receive data indicator toggling at ~10Hz while receiving; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "49",
        "name": "GPIOD8/TXTD",
        "type": "bidirectional",
        "description": "GPIO or UART transmit data indicator toggling at ~10Hz while transmitting; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "50",
        "name": "GPIOD7/RS485D",
        "type": "bidirectional",
        "description": "GPIO or RS-485 half-duplex enable output; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "51",
        "name": "GPIOD6/CLKD",
        "type": "bidirectional",
        "description": "GPIO or clock/pulse output; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "52",
        "name": "TXD",
        "type": "output",
        "description": "UART channel D transmit data output."
      },
      {
        "number": "53",
        "name": "RXD",
        "type": "input",
        "description": "UART channel D receive data input."
      },
      {
        "number": "54",
        "name": "GPIOD5/RTSD#/RS485D",
        "type": "bidirectional",
        "description": "GPIO, UART RTS output (active low) or auto RS-485 half-duplex control; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "55",
        "name": "GPIOD4/CTSD#",
        "type": "bidirectional",
        "description": "GPIO or UART CTS input (active low); defaults to GPIO input with internal pull-up."
      },
      {
        "number": "56",
        "name": "GPIOD3/DTRD#",
        "type": "bidirectional",
        "description": "GPIO or UART DTR push-pull output (active low); defaults to GPIO input with internal pull-up."
      },
      {
        "number": "57",
        "name": "GPIOD2/DSRD#",
        "type": "bidirectional",
        "description": "GPIO or UART DSR input (active low); defaults to GPIO input with internal pull-up."
      },
      {
        "number": "58",
        "name": "GPIOD1/CDD#",
        "type": "bidirectional",
        "description": "GPIO or UART carrier-detect input (active low); defaults to GPIO input with internal pull-up."
      },
      {
        "number": "59",
        "name": "GPIOD0/RID#/RWKD#",
        "type": "bidirectional",
        "description": "GPIO, UART ring-indicator input (active low) or remote wakeup input signaled on a falling edge; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "60",
        "name": "GPIOA9/RXTA",
        "type": "bidirectional",
        "description": "GPIO or UART receive data indicator toggling at ~10Hz while receiving; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "61",
        "name": "GPIOA8/TXTA",
        "type": "bidirectional",
        "description": "GPIO or UART transmit data indicator toggling at ~10Hz while transmitting; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "62",
        "name": "GPIOA7/RS485A",
        "type": "bidirectional",
        "description": "GPIO or auto RS-485 half-duplex control; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "63",
        "name": "GPIOA6/CLKA",
        "type": "bidirectional",
        "description": "GPIO or clock/pulse output; defaults to GPIO input with internal pull-up."
      },
      {
        "number": "64",
        "name": "TXA",
        "type": "output",
        "description": "UART channel A transmit data output."
      }
    ],
    "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-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: VCC is either a 3.3V supply input or a 3.3V output (up to 200 mA) when 5V is applied to VCC_REG; cla; Pin 37 is printed as GPIOB6/CLKB in the table but as GPIOB6/CLKB# in the pin diagram; the table name; The datasheet has no exposed pad pin listed for the 64-pin LQFP. The ordering table lists XR21B1424I"
        ],
        "pages_sent": 17,
        "cost_usd": 0.3808,
        "at": "2026-11-02T19:17:46"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/13a922d9218161f27ed10ea23c4866da.pdf",
        "pages": 66,
        "sha256": "2264ecd5804c3219",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 64,
        "described": 64,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "xr21b1424iv64tr-f.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b0c827bc5c05552175d28affe44a5bd2ab45c9c36efff6ff07a74cc449b13db4",
        "checked": "2026-11-02",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "xr21b1424iv64tr-f-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "321063d0cd713e4c3eb403f380d0028f1d39e340db8a0ea75d29faec84f432c6",
        "checked": "2026-11-02",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}