TUSB2077APT

{
  "schema_version": 1,
  "type": "component",
  "slug": "tusb2077apt",
  "title": "TUSB2077APT",
  "brief": "Texas Instruments USB Converters, LQFP-48(7x7). 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",
    "interface",
    "tusb2077apt",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "TUSB2077APT",
    "manufacturer": "Texas Instruments",
    "package": "LQFP-48(7x7)",
    "pin_count": 48,
    "category": "Interface",
    "subcategory": "USB Converters",
    "datasheet": "https://www.ti.com/cn/lit/gpn/tusb2077a",
    "parts": {
      "symbol": "tusb2077apt.kicad_sym",
      "footprint": "tusb2077apt.kicad_mod",
      "model_3d": "tusb2077apt-hero.glb",
      "model_3d_plain": "tusb2077apt.glb",
      "model_3d_step": "tusb2077apt-etched.step",
      "model_3d_step_plain": "tusb2077apt.step",
      "lbr": "tusb2077apt.lbr"
    },
    "distributor_links": {
      "lcsc": "C701574",
      "digikey": "296-11089-ND",
      "mouser": "595-TUSB2077APT"
    },
    "distributor_check": {
      "checked_at": "2026-10-08T21:39:50Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "296-11089-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "595-TUSB2077APT",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "SUSPND",
        "type": "output",
        "description": "Active-high suspend status output for external logic power-down; it is high during suspend mode and low during normal operation."
      },
      {
        "number": "2",
        "name": "DP0PUR",
        "type": "output",
        "description": "DP0 pull-up resistor control that floats until a 15-ms internal counter expires after a system reset or BUSPWR level change, then is driven to VCC (3.3 V) until the next reset or BUSPWR change."
      },
      {
        "number": "3",
        "name": "DP0",
        "type": "bidirectional",
        "description": "Root port USB differential data plus, which together with DM0 forms the upstream USB port."
      },
      {
        "number": "4",
        "name": "DM0",
        "type": "bidirectional",
        "description": "Root port USB differential data minus, which together with DP0 forms the upstream USB port."
      },
      {
        "number": "5",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin that must be tied to ground for proper operation."
      },
      {
        "number": "6",
        "name": "RESET",
        "type": "input",
        "description": "Active-low TTL input with hysteresis that must be asserted at power-up; a 100 µs to 1 ms pulse is recommended after VCC reaches 90%, and the clock must be active during the last 60 µs of the reset window."
      },
      {
        "number": "7",
        "name": "EECLK",
        "type": "output",
        "description": "EEPROM serial clock: disabled and left floating when EXTMEM is high, and when EXTMEM is low it is a 3-state serial clock output with a 100-µA internal pulldown."
      },
      {
        "number": "8",
        "name": "EEDATA/GANGED",
        "type": "bidirectional",
        "description": "When EXTMEM is high it selects ganged or per-port overcurrent detection, and when EXTMEM is low it is the EEPROM serial data I/O; it is a standard TTL input with a 100-µA internal pulldown that must not change dynamically during operation."
      },
      {
        "number": "9",
        "name": "VCC",
        "type": "power_in",
        "description": "3.3-V supply pin; the recommended operating supply range is 3 V to 3.6 V."
      },
      {
        "number": "10",
        "name": "BUSPWR",
        "type": "input",
        "description": "Active-low power source indicator that must be pulled low for bus-powered mode or pulled to 3.3 V for self-powered mode, and must not change dynamically during operation."
      },
      {
        "number": "11",
        "name": "PWRON1",
        "type": "output",
        "description": "Active-low push-pull power-on/off control for an external power switch, which must accept 3.3-V inputs because the output cannot drive 5-V signals."
      },
      {
        "number": "12",
        "name": "OVRCUR1",
        "type": "input",
        "description": "Active-low overcurrent input with noise filtering; in per-port mode each downstream port has its own input, and in ganged mode all OVRCUR pins must be tied together."
      },
      {
        "number": "13",
        "name": "DM1",
        "type": "bidirectional",
        "description": "Downstream port USB differential data minus, paired with DP1 to support downstream USB ports."
      },
      {
        "number": "14",
        "name": "DP1",
        "type": "bidirectional",
        "description": "Downstream port USB differential data plus, paired with DM1 to support downstream USB ports."
      },
      {
        "number": "15",
        "name": "PWRON2",
        "type": "output",
        "description": "Active-low push-pull power-on/off control for an external power switch, which must accept 3.3-V inputs because the output cannot drive 5-V signals."
      },
      {
        "number": "16",
        "name": "OVRCUR2",
        "type": "input",
        "description": "Active-low overcurrent input with noise filtering; in per-port mode each downstream port has its own input, and in ganged mode all OVRCUR pins must be tied together."
      },
      {
        "number": "17",
        "name": "DM2",
        "type": "bidirectional",
        "description": "Downstream port USB differential data minus, paired with DP2 to support downstream USB ports."
      },
      {
        "number": "18",
        "name": "DP2",
        "type": "bidirectional",
        "description": "Downstream port USB differential data plus, paired with DM2 to support downstream USB ports."
      },
      {
        "number": "19",
        "name": "PWRON3",
        "type": "output",
        "description": "Active-low push-pull power-on/off control for an external power switch, which must accept 3.3-V inputs because the output cannot drive 5-V signals."
      },
      {
        "number": "20",
        "name": "OVRCUR3",
        "type": "input",
        "description": "Active-low overcurrent input with noise filtering; in per-port mode each downstream port has its own input, and in ganged mode all OVRCUR pins must be tied together."
      },
      {
        "number": "21",
        "name": "DM3",
        "type": "bidirectional",
        "description": "Downstream port USB differential data minus, paired with DP3 to support downstream USB ports."
      },
      {
        "number": "22",
        "name": "DP3",
        "type": "bidirectional",
        "description": "Downstream port USB differential data plus, paired with DM3 to support downstream USB ports."
      },
      {
        "number": "23",
        "name": "PWRON4",
        "type": "output",
        "description": "Active-low push-pull power-on/off control for an external power switch, which must accept 3.3-V inputs because the output cannot drive 5-V signals."
      },
      {
        "number": "24",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin that must be tied to ground for proper operation."
      },
      {
        "number": "25",
        "name": "OVRCUR4",
        "type": "input",
        "description": "Active-low overcurrent input with noise filtering; in per-port mode each downstream port has its own input, and in ganged mode all OVRCUR pins must be tied together."
      },
      {
        "number": "26",
        "name": "DM4",
        "type": "bidirectional",
        "description": "Downstream port USB differential data minus, paired with DP4 to support downstream USB ports."
      },
      {
        "number": "27",
        "name": "DP4",
        "type": "bidirectional",
        "description": "Downstream port USB differential data plus, paired with DM4 to support downstream USB ports."
      },
      {
        "number": "28",
        "name": "PWRON5",
        "type": "output",
        "description": "Active-low push-pull power-on/off control for an external power switch, which must accept 3.3-V inputs because the output cannot drive 5-V signals."
      },
      {
        "number": "29",
        "name": "OVRCUR5",
        "type": "input",
        "description": "Active-low overcurrent input with noise filtering; in per-port mode each downstream port has its own input, and in ganged mode all OVRCUR pins must be tied together."
      },
      {
        "number": "30",
        "name": "DM5",
        "type": "bidirectional",
        "description": "Downstream port USB differential data minus, paired with DP5 to support downstream USB ports."
      },
      {
        "number": "31",
        "name": "DP5",
        "type": "bidirectional",
        "description": "Downstream port USB differential data plus, paired with DM5 to support downstream USB ports."
      },
      {
        "number": "32",
        "name": "PWRON6",
        "type": "output",
        "description": "Active-low push-pull power-on/off control for an external power switch, which must accept 3.3-V inputs because the output cannot drive 5-V signals."
      },
      {
        "number": "33",
        "name": "OVRCUR6",
        "type": "input",
        "description": "Active-low overcurrent input with noise filtering; in per-port mode each downstream port has its own input, and in ganged mode all OVRCUR pins must be tied together."
      },
      {
        "number": "34",
        "name": "DM6",
        "type": "bidirectional",
        "description": "Downstream port USB differential data minus, paired with DP6 to support downstream USB ports."
      },
      {
        "number": "35",
        "name": "DP6",
        "type": "bidirectional",
        "description": "Downstream port USB differential data plus, paired with DM6 to support downstream USB ports."
      },
      {
        "number": "36",
        "name": "PWRON7",
        "type": "output",
        "description": "Active-low push-pull power-on/off control for an external power switch, which must accept 3.3-V inputs because the output cannot drive 5-V signals."
      },
      {
        "number": "37",
        "name": "OVRCUR7",
        "type": "input",
        "description": "Active-low overcurrent input with noise filtering; in per-port mode each downstream port has its own input, and in ganged mode all OVRCUR pins must be tied together."
      },
      {
        "number": "38",
        "name": "DM7",
        "type": "bidirectional",
        "description": "Downstream port USB differential data minus, paired with DP7 to support downstream USB ports."
      },
      {
        "number": "39",
        "name": "DP7",
        "type": "bidirectional",
        "description": "Downstream port USB differential data plus, paired with DM7 to support downstream USB ports."
      },
      {
        "number": "40",
        "name": "HUBCFG",
        "type": "output",
        "description": "Hub configured indicator that is high when the hub is configured (drives a green LED) and low when not configured (drives a red LED), and is 3-stated during low-power suspend."
      },
      {
        "number": "41",
        "name": "PORTPWR",
        "type": "output",
        "description": "Any-port-powered indicator that is high when any port is powered (green LED) and low when all ports are off (red LED), and is 3-stated during low-power suspend."
      },
      {
        "number": "42",
        "name": "PORTDIS",
        "type": "output",
        "description": "No-port-disabled indicator that is high when no port is disabled (green LED) and low when any port is disabled (red LED), and is 3-stated during low-power suspend."
      },
      {
        "number": "43",
        "name": "GND",
        "type": "power_in",
        "description": "Ground pin that must be tied to ground for proper operation."
      },
      {
        "number": "44",
        "name": "XTAL2",
        "type": "output",
        "description": "6-MHz crystal output that must be left open when an oscillator is used."
      },
      {
        "number": "45",
        "name": "XTAL1/CLK48",
        "type": "input",
        "description": "When MODE is low this is a 6-MHz crystal input with 50% duty cycle; when MODE is high it is a 48-MHz clock input and the internal APLL is bypassed."
      },
      {
        "number": "46",
        "name": "VCC",
        "type": "power_in",
        "description": "3.3-V supply pin; the recommended operating supply range is 3 V to 3.6 V."
      },
      {
        "number": "47",
        "name": "EXTMEM",
        "type": "input",
        "description": "When high it disables the serial EEPROM interface and selects default VID/PID (General Purpose USB Hub); when low, pins 7 and 8 act as the EEPROM clock and data."
      },
      {
        "number": "48",
        "name": "MODE",
        "type": "input",
        "description": "When low the APLL output clocks the core with a 6-MHz crystal or oscillator; when high the XTAL1/CLK48 input clocks the core with a 48-MHz oscillator or other onboard clock."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: EECLK is listed as type O in the pin table, but the description says it is a 3-state output when EXT; The pin-configuration legend mentions 'NC - No internal connection', but no pins are marked NC in th; The datasheet text covers only 9 of 29 pages. The full 48-pin table is on pages 4-5, which is enough"
        ],
        "pages_sent": 9,
        "cost_usd": 0.0957,
        "at": "2026-10-08T21:39:09"
      },
      "datasheet": {
        "url": "https://www.ti.com/cn/lit/gpn/tusb2077a",
        "pages": 29,
        "sha256": "84f556408dd203b4",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 48,
        "described": 48,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "tusb2077apt.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "tusb2077apt-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9,
          9,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c1825f3742c893464d342ef74ab8a2082f292b50c1d9a68a146756bdc1c947ce",
        "checked": "2026-10-08",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Texas Instruments",
      "Package": "LQFP-48(7x7)",
      "Category": "Interface",
      "Pins": "48"
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "tusb2077apt"
  ],
  "discovery_pitch": "TUSB2077APT (Texas Instruments) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "tusb2077apt.kicad_sym",
    "tusb2077apt.kicad_mod",
    "tusb2077apt.glb",
    "tusb2077apt.step",
    "tusb2077apt.lbr",
    "docs/hero.png",
    "docs/tusb2077apt-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "tusb2077apt-hero.glb",
    "tusb2077apt-hero.overlay.json"
  ],
  "visibility": {
    "public": true
  }
}