TUSB8044AIRGCR

{
  "slug": "tusb8044airgcr",
  "version": "0.1.0",
  "type": "component",
  "description": "Texas Instruments USB ICs, VQFN-64-EP(9x9). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "communication interface chip-uart-485-232",
    "tusb8044airgcr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tusb8044airgcr.kicad_sym",
    "tusb8044airgcr.kicad_mod",
    "tusb8044airgcr.glb",
    "tusb8044airgcr.step",
    "tusb8044airgcr.lbr",
    "docs/hero.png",
    "docs/tusb8044airgcr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tusb8044airgcr-hero.glb",
    "tusb8044airgcr-hero.overlay.json"
  ],
  "component": {
    "mpn": "TUSB8044AIRGCR",
    "manufacturer": "Texas Instruments",
    "package": "VQFN-64-EP(9x9)",
    "pin_count": 65,
    "category": "Communication Interface Chip/UART/485/232",
    "subcategory": "USB ICs",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tusb8044a",
    "parts": {
      "symbol": "tusb8044airgcr.kicad_sym",
      "footprint": "tusb8044airgcr.kicad_mod",
      "model_3d": "tusb8044airgcr-hero.glb",
      "model_3d_plain": "tusb8044airgcr.glb",
      "model_3d_step": "tusb8044airgcr-etched.step",
      "model_3d_step_plain": "tusb8044airgcr.step",
      "lbr": "tusb8044airgcr.lbr"
    },
    "distributor_links": {
      "lcsc": "C1849381",
      "digikey": "296-TUSB8044AIRGCRTR-ND",
      "mouser": "595-TUSB8044AIRGCR"
    },
    "distributor_check": {
      "checked_at": "2026-10-07T08:29:59Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-TUSB8044AIRGCRTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TUSB8044AIRGCR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "USB_DP_DN1",
        "type": "bidirectional",
        "description": "USB High-speed differential transceiver positive terminal for downstream port 1."
      },
      {
        "number": "2",
        "name": "USB_DM_DN1",
        "type": "bidirectional",
        "description": "USB High-speed differential transceiver negative terminal for downstream port 1."
      },
      {
        "number": "3",
        "name": "USB_SSTXP_DN1",
        "type": "output",
        "description": "USB SuperSpeed transmitter differential pair positive terminal for downstream port 1."
      },
      {
        "number": "4",
        "name": "USB_SSTXM_DN1",
        "type": "output",
        "description": "USB SuperSpeed transmitter differential pair negative terminal for downstream port 1."
      },
      {
        "number": "5",
        "name": "VDD",
        "type": "power_in",
        "description": "1.1-V power supply input voltage."
      },
      {
        "number": "6",
        "name": "USB_SSRXP_DN1",
        "type": "input",
        "description": "USB SuperSpeed receiver differential pair positive terminal for downstream port 1."
      },
      {
        "number": "7",
        "name": "USB_SSRXM_DN1",
        "type": "input",
        "description": "USB SuperSpeed receiver differential pair negative terminal for downstream port 1."
      },
      {
        "number": "8",
        "name": "VDD",
        "type": "power_in",
        "description": "1.1-V power supply input voltage."
      },
      {
        "number": "9",
        "name": "USB_DP_DN2",
        "type": "bidirectional",
        "description": "USB High-speed differential transceiver positive terminal for downstream port 2."
      },
      {
        "number": "10",
        "name": "USB_DM_DN2",
        "type": "bidirectional",
        "description": "USB High-speed differential transceiver negative terminal for downstream port 2."
      },
      {
        "number": "11",
        "name": "USB_SSTXP_DN2",
        "type": "output",
        "description": "USB SuperSpeed transmitter differential pair positive terminal for downstream port 2."
      },
      {
        "number": "12",
        "name": "USB_SSTXM_DN2",
        "type": "output",
        "description": "USB SuperSpeed transmitter differential pair negative terminal for downstream port 2."
      },
      {
        "number": "13",
        "name": "VDD",
        "type": "power_in",
        "description": "1.1-V power supply input voltage."
      },
      {
        "number": "14",
        "name": "USB_SSRXP_DN2",
        "type": "input",
        "description": "USB SuperSpeed receiver differential pair positive terminal for downstream port 2."
      },
      {
        "number": "15",
        "name": "USB_SSRXM_DN2",
        "type": "input",
        "description": "USB SuperSpeed receiver differential pair negative terminal for downstream port 2."
      },
      {
        "number": "16",
        "name": "VDD33",
        "type": "power_in",
        "description": "3.3-V power supply input voltage."
      },
      {
        "number": "17",
        "name": "USB_DP_DN3",
        "type": "bidirectional",
        "description": "USB High-speed differential transceiver positive terminal for downstream port 3."
      },
      {
        "number": "18",
        "name": "USB_DM_DN3",
        "type": "bidirectional",
        "description": "USB High-speed differential transceiver negative terminal for downstream port 3."
      },
      {
        "number": "19",
        "name": "USB_SSTXP_DN3",
        "type": "output",
        "description": "USB SuperSpeed transmitter differential pair positive terminal for downstream port 3."
      },
      {
        "number": "20",
        "name": "USB_SSTXM_DN3",
        "type": "output",
        "description": "USB SuperSpeed transmitter differential pair negative terminal for downstream port 3."
      },
      {
        "number": "21",
        "name": "VDD",
        "type": "power_in",
        "description": "1.1-V power supply input voltage."
      },
      {
        "number": "22",
        "name": "USB_SSRXP_DN3",
        "type": "input",
        "description": "USB SuperSpeed receiver differential pair positive terminal for downstream port 3."
      },
      {
        "number": "23",
        "name": "USB_SSRXM_DN3",
        "type": "input",
        "description": "USB SuperSpeed receiver differential pair negative terminal for downstream port 3."
      },
      {
        "number": "24",
        "name": "USB_DP_DN4",
        "type": "bidirectional",
        "description": "USB High-speed differential transceiver positive terminal for downstream port 4."
      },
      {
        "number": "25",
        "name": "USB_DM_DN4",
        "type": "bidirectional",
        "description": "USB High-speed differential transceiver negative terminal for downstream port 4."
      },
      {
        "number": "26",
        "name": "USB_SSTXP_DN4",
        "type": "output",
        "description": "USB SuperSpeed transmitter differential pair positive terminal for downstream port 4."
      },
      {
        "number": "27",
        "name": "USB_SSTXM_DN4",
        "type": "output",
        "description": "USB SuperSpeed transmitter differential pair negative terminal for downstream port 4."
      },
      {
        "number": "28",
        "name": "VDD",
        "type": "power_in",
        "description": "1.1-V power supply input voltage."
      },
      {
        "number": "29",
        "name": "USB_SSRXP_DN4",
        "type": "input",
        "description": "USB SuperSpeed receiver differential pair positive terminal for downstream port 4."
      },
      {
        "number": "30",
        "name": "USB_SSRXM_DN4",
        "type": "input",
        "description": "USB SuperSpeed receiver differential pair negative terminal for downstream port 4."
      },
      {
        "number": "31",
        "name": "VDD",
        "type": "power_in",
        "description": "1.1-V power supply input voltage."
      },
      {
        "number": "32",
        "name": "PWRCTL4/BATEN4",
        "type": "bidirectional",
        "description": "Downstream port 4 power control output sampled at reset deassertion to indicate battery charging support (0 = not supported, 1 = supported)."
      },
      {
        "number": "33",
        "name": "PWRCTL3/BATEN3",
        "type": "bidirectional",
        "description": "Downstream port 3 power control output sampled at reset deassertion to indicate battery charging support (0 = not supported, 1 = supported)."
      },
      {
        "number": "34",
        "name": "VDD33",
        "type": "power_in",
        "description": "3.3-V power supply input voltage."
      },
      {
        "number": "35",
        "name": "PWRCTL2/BATEN2",
        "type": "bidirectional",
        "description": "Downstream port 2 power control output sampled at reset deassertion to indicate battery charging support (0 = not supported, 1 = supported)."
      },
      {
        "number": "36",
        "name": "PWRCTL1/BATEN1",
        "type": "bidirectional",
        "description": "Downstream port 1 power control output sampled at reset deassertion to indicate battery charging support (0 = not supported, 1 = supported)."
      },
      {
        "number": "37",
        "name": "SDA/SMBDAT",
        "type": "bidirectional",
        "description": "I2C serial data or SMBus data bidirectional line; function determined by SMBUSz pin setting at reset deassertion."
      },
      {
        "number": "38",
        "name": "SCL/SMBCLK",
        "type": "bidirectional",
        "description": "I2C serial clock or SMBus clock bidirectional line; function determined by SMBUSz pin setting at reset deassertion."
      },
      {
        "number": "39",
        "name": "SMBUSz,SS_SUSPEND",
        "type": "bidirectional",
        "description": "I2C/SMBus mode select input (1 = I2C, 0 = SMBus) sampled at reset deassertion, or SuperSpeed upstream suspend status output when stsOutputEn enabled."
      },
      {
        "number": "40",
        "name": "BBbmConfigured0/FULLAUTOz/FULLPWRMGMTz/SS_UP",
        "type": "bidirectional",
        "description": "Billboard bmConfigured[0] control in I2C mode, full auto or power management mode control in SMBus mode, or upstream SS connection indicator when stsOutputEn enabled."
      },
      {
        "number": "41",
        "name": "PWRCTL_POL",
        "type": "bidirectional",
        "description": "Power control polarity selection input (0 = active low, 1 = active high) sampled at reset deassertion."
      },
      {
        "number": "42",
        "name": "BBEN/GANGED,HS_UP",
        "type": "bidirectional",
        "description": "Billboard enable control in I2C mode, ganged or individual power control mode selection in SMBus mode sampled at reset deassertion, or upstream HS connection indicator when stsOutputEn enabled."
      },
      {
        "number": "43",
        "name": "OVERCUR4z",
        "type": "input",
        "description": "Downstream port 4 over-current detection input with internal pull-up; low level indicates an overcurrent event."
      },
      {
        "number": "44",
        "name": "OVERCUR3z",
        "type": "input",
        "description": "Downstream port 3 over-current detection input with internal pull-up; low level indicates an overcurrent event."
      },
      {
        "number": "45",
        "name": "BBbmConfigured1/AUTOENz/HS_SUSPEND",
        "type": "bidirectional",
        "description": "Billboard bmConfigured[1] control in I2C mode, automatic mode enable control in SMBus mode, or upstream HS suspend indicator when stsOutputEn enabled."
      },
      {
        "number": "46",
        "name": "OVERCUR1z",
        "type": "input",
        "description": "Downstream port 1 over-current detection input with internal pull-up; low level indicates an overcurrent event."
      },
      {
        "number": "47",
        "name": "OVERCUR2z",
        "type": "input",
        "description": "Downstream port 2 over-current detection input with internal pull-up; low level indicates an overcurrent event."
      },
      {
        "number": "48",
        "name": "USB_VBUS",
        "type": "input",
        "description": "Upstream port power monitor input; requires voltage divider with 90.9-kΩ ±1% resistor to VBUS and 10-kΩ ±1% resistor to ground."
      },
      {
        "number": "49",
        "name": "TEST",
        "type": "input",
        "description": "Factory test pin requiring external 10-kΩ or stronger pull-down resistor to ground for normal operation."
      },
      {
        "number": "50",
        "name": "GRSTz",
        "type": "input",
        "description": "Global power reset input with internal pull-up; brings all internal registers to default states and device is nonfunctional when asserted."
      },
      {
        "number": "51",
        "name": "VDD",
        "type": "power_in",
        "description": "1.1-V power supply input voltage."
      },
      {
        "number": "52",
        "name": "VDD33",
        "type": "power_in",
        "description": "3.3-V power supply input voltage."
      },
      {
        "number": "53",
        "name": "USB_DP_UP",
        "type": "bidirectional",
        "description": "USB High-speed differential transceiver positive terminal for upstream port."
      },
      {
        "number": "54",
        "name": "USB_DM_UP",
        "type": "bidirectional",
        "description": "USB High-speed differential transceiver negative terminal for upstream port."
      },
      {
        "number": "55",
        "name": "USB_SSTXP_UP",
        "type": "output",
        "description": "USB SuperSpeed transmitter differential pair positive terminal for upstream port."
      },
      {
        "number": "56",
        "name": "USB_SSTXM_UP",
        "type": "output",
        "description": "USB SuperSpeed transmitter differential pair negative terminal for upstream port."
      },
      {
        "number": "57",
        "name": "VDD",
        "type": "power_in",
        "description": "1.1-V power supply input voltage."
      },
      {
        "number": "58",
        "name": "USB_SSRXP_UP",
        "type": "input",
        "description": "USB SuperSpeed receiver differential pair positive terminal for upstream port."
      },
      {
        "number": "59",
        "name": "USB_SSRXM_UP",
        "type": "input",
        "description": "USB SuperSpeed receiver differential pair negative terminal for upstream port."
      },
      {
        "number": "60",
        "name": "NC",
        "type": "unconnected",
        "description": "No connect; leave floating."
      },
      {
        "number": "61",
        "name": "XO",
        "type": "output",
        "description": "Crystal oscillator output; leave unconnected if external oscillator drives XI pin."
      },
      {
        "number": "62",
        "name": "XI",
        "type": "input",
        "description": "Crystal oscillator input accepting external oscillator output or crystal with 1-MΩ feedback resistor to XO."
      },
      {
        "number": "63",
        "name": "VDD33",
        "type": "power_in",
        "description": "3.3-V power supply input voltage."
      },
      {
        "number": "64",
        "name": "USB_R1",
        "type": "input",
        "description": "Precision resistor reference input; connect 9.53-kΩ ±1% resistor between this pin and ground."
      },
      {
        "number": "65",
        "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-haiku-4-5-20251001",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 56 (USB_SSTXM_UP) explicit description not found in provided datasheet text; description inferre; Pin 58 (USB_SSRXP_UP) explicit description not found in provided datasheet text; description inferre",
          "exposed pad 65 added from the footprint"
        ],
        "pages_sent": 18,
        "cost_usd": 0.2814,
        "at": "2026-10-07T08:29:40"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tusb8044a",
        "pages": 69,
        "sha256": "57142228db173b28",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 65,
        "described": 65,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tusb8044airgcr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.0,
          9.0,
          0.75
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dce07a86ec3fe3ca87eebdff13827f55e036ced5518fee01f85cec4a3f56366d",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tusb8044airgcr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.0,
          9.0,
          0.75
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "79926d3644add5d3dfcc1c9b8aab5b09d7281bc9fc1cb9380fb93aeb6dcdd876",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}