W78E054DFG

{
  "slug": "w78e054dfg",
  "version": "0.1.0",
  "type": "component",
  "description": "Nuvoton Tech Microcontroller Units (MCUs/MPUs/SOCs), TQFP-44(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "w78e054dfg",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "w78e054dfg.kicad_sym",
    "w78e054dfg.kicad_mod",
    "w78e054dfg.glb",
    "w78e054dfg.step",
    "w78e054dfg.lbr",
    "docs/hero.png",
    "docs/w78e054dfg-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "w78e054dfg-hero.glb",
    "w78e054dfg-hero.overlay.json",
    "w78e054dfg-etched.glb"
  ],
  "component": {
    "mpn": "W78E054DFG",
    "manufacturer": "Nuvoton Tech",
    "package": "TQFP-44(10x10)",
    "pin_count": 44,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/fa303376662cc698bf9411c792b844f4.pdf",
    "parts": {
      "symbol": "w78e054dfg.kicad_sym",
      "footprint": "w78e054dfg.kicad_mod",
      "model_3d": "w78e054dfg-hero.glb",
      "model_3d_plain": "w78e054dfg-etched.glb",
      "model_3d_step": "w78e054dfg-etched.step",
      "model_3d_step_plain": "w78e054dfg.step",
      "lbr": "w78e054dfg.lbr"
    },
    "distributor_links": {
      "lcsc": "C112403",
      "digikey": "W78E054DFG-ND",
      "mouser": "503-W78E054DFG"
    },
    "distributor_check": {
      "checked_at": "2026-10-26T18:39:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "W78E054DFG-ND",
        "status": "found",
        "lifecycle": "Obsolete"
      },
      "mouser": {
        "pn": "503-W78E054DFG",
        "status": "found",
        "lifecycle": "Obsolete"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "P1.5",
        "type": "bidirectional",
        "description": "Port 1 bit 5, bi-directional I/O with internal pull-up."
      },
      {
        "number": "2",
        "name": "P1.6",
        "type": "bidirectional",
        "description": "Port 1 bit 6, bi-directional I/O with internal pull-up."
      },
      {
        "number": "3",
        "name": "P1.7",
        "type": "bidirectional",
        "description": "Port 1 bit 7, bi-directional I/O with internal pull-up."
      },
      {
        "number": "4",
        "name": "RST",
        "type": "input",
        "description": "Reset input: a high for two machine cycles while the oscillator is running resets the device; internal pull-down resistor 100-225 kOhm."
      },
      {
        "number": "5",
        "name": "P3.0/RXD",
        "type": "bidirectional",
        "description": "Port 3 bit 0 with internal pull-up; alternate function is serial port 0 input RXD."
      },
      {
        "number": "6",
        "name": "P4.3/INT2",
        "type": "bidirectional",
        "description": "Port 4 bit 3 general I/O or external interrupt 2 input."
      },
      {
        "number": "7",
        "name": "P3.1/TXD",
        "type": "bidirectional",
        "description": "Port 3 bit 1 with internal pull-up; alternate function is serial port 0 output TXD."
      },
      {
        "number": "8",
        "name": "P3.2/INT0",
        "type": "bidirectional",
        "description": "Port 3 bit 2 with internal pull-up; alternate function is external interrupt 0."
      },
      {
        "number": "9",
        "name": "P3.3/INT1",
        "type": "bidirectional",
        "description": "Port 3 bit 3 with internal pull-up; alternate function is external interrupt 1."
      },
      {
        "number": "10",
        "name": "P3.4/T0",
        "type": "bidirectional",
        "description": "Port 3 bit 4 with internal pull-up; alternate function is Timer 0 external input."
      },
      {
        "number": "11",
        "name": "P3.5/T1",
        "type": "bidirectional",
        "description": "Port 3 bit 5 with internal pull-up; alternate function is Timer 1 external input."
      },
      {
        "number": "12",
        "name": "P3.6/WR",
        "type": "bidirectional",
        "description": "Port 3 bit 6 with internal pull-up; alternate function is external data memory write strobe."
      },
      {
        "number": "13",
        "name": "P3.7/RD",
        "type": "bidirectional",
        "description": "Port 3 bit 7 with internal pull-up; alternate function is external data memory read strobe."
      },
      {
        "number": "14",
        "name": "XTAL2",
        "type": "output",
        "description": "Crystal oscillator output, the inversion of XTAL1."
      },
      {
        "number": "15",
        "name": "XTAL1",
        "type": "input",
        "description": "Crystal oscillator input; may be driven by an external clock."
      },
      {
        "number": "16",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground potential."
      },
      {
        "number": "17",
        "name": "P4.0",
        "type": "bidirectional",
        "description": "Port 4 bit 0, general purpose bit-addressable bi-directional I/O."
      },
      {
        "number": "18",
        "name": "P2.0/A8",
        "type": "bidirectional",
        "description": "Port 2 bit 0 with internal pull-up; also address bit A8 for external memory."
      },
      {
        "number": "19",
        "name": "P2.1/A9",
        "type": "bidirectional",
        "description": "Port 2 bit 1 with internal pull-up; also address bit A9 for external memory."
      },
      {
        "number": "20",
        "name": "P2.2/A10",
        "type": "bidirectional",
        "description": "Port 2 bit 2 with internal pull-up; also address bit A10 for external memory."
      },
      {
        "number": "21",
        "name": "P2.3/A11",
        "type": "bidirectional",
        "description": "Port 2 bit 3 with internal pull-up; also address bit A11 for external memory."
      },
      {
        "number": "22",
        "name": "P2.4/A12",
        "type": "bidirectional",
        "description": "Port 2 bit 4 with internal pull-up; also address bit A12 for external memory."
      },
      {
        "number": "23",
        "name": "P2.5/A13",
        "type": "bidirectional",
        "description": "Port 2 bit 5 with internal pull-up; also address bit A13 for external memory."
      },
      {
        "number": "24",
        "name": "P2.6/A14",
        "type": "bidirectional",
        "description": "Port 2 bit 6 with internal pull-up; also address bit A14 for external memory."
      },
      {
        "number": "25",
        "name": "P2.7/A15",
        "type": "bidirectional",
        "description": "Port 2 bit 7 with internal pull-up; also address bit A15 for external memory."
      },
      {
        "number": "26",
        "name": "PSEN",
        "type": "output",
        "description": "Program store enable: strobes external ROM data onto the Port 0 bus during fetch and MOVC; no strobe during internal ROM access."
      },
      {
        "number": "27",
        "name": "ALE",
        "type": "output",
        "description": "Address latch enable: separates the address from data on Port 0."
      },
      {
        "number": "28",
        "name": "P4.1",
        "type": "bidirectional",
        "description": "Port 4 bit 1, general purpose bit-addressable bi-directional I/O."
      },
      {
        "number": "29",
        "name": "EA",
        "type": "input",
        "description": "External access enable: keep high to execute from internal ROM, low to force external ROM."
      },
      {
        "number": "30",
        "name": "P0.7/AD7",
        "type": "bidirectional",
        "description": "Port 0 bit 7, open-drain I/O (optional pull-up via P0UPR); multiplexed address/data bit 7."
      },
      {
        "number": "31",
        "name": "P0.6/AD6",
        "type": "bidirectional",
        "description": "Port 0 bit 6, open-drain I/O (optional pull-up via P0UPR); multiplexed address/data bit 6."
      },
      {
        "number": "32",
        "name": "P0.5/AD5",
        "type": "bidirectional",
        "description": "Port 0 bit 5, open-drain I/O (optional pull-up via P0UPR); multiplexed address/data bit 5."
      },
      {
        "number": "33",
        "name": "P0.4/AD4",
        "type": "bidirectional",
        "description": "Port 0 bit 4, open-drain I/O (optional pull-up via P0UPR); multiplexed address/data bit 4."
      },
      {
        "number": "34",
        "name": "P0.3/AD3",
        "type": "bidirectional",
        "description": "Port 0 bit 3, open-drain I/O (optional pull-up via P0UPR); multiplexed address/data bit 3."
      },
      {
        "number": "35",
        "name": "P0.2/AD2",
        "type": "bidirectional",
        "description": "Port 0 bit 2, open-drain I/O (optional pull-up via P0UPR); multiplexed address/data bit 2."
      },
      {
        "number": "36",
        "name": "P0.1/AD1",
        "type": "bidirectional",
        "description": "Port 0 bit 1, open-drain I/O (optional pull-up via P0UPR); multiplexed address/data bit 1."
      },
      {
        "number": "37",
        "name": "P0.0/AD0",
        "type": "bidirectional",
        "description": "Port 0 bit 0, open-drain I/O (optional pull-up via P0UPR); multiplexed address/data bit 0."
      },
      {
        "number": "38",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply for operation, 2.4V to 5.5V."
      },
      {
        "number": "39",
        "name": "P4.2/INT3",
        "type": "bidirectional",
        "description": "Port 4 bit 2 general I/O or external interrupt 3 input."
      },
      {
        "number": "40",
        "name": "P1.0/T2",
        "type": "bidirectional",
        "description": "Port 1 bit 0 with internal pull-up; alternate function is Timer/Counter 2 external count input."
      },
      {
        "number": "41",
        "name": "P1.1/T2EX",
        "type": "bidirectional",
        "description": "Port 1 bit 1 with internal pull-up; alternate function is Timer/Counter 2 reload/capture control."
      },
      {
        "number": "42",
        "name": "P1.2",
        "type": "bidirectional",
        "description": "Port 1 bit 2, bi-directional I/O with internal pull-up."
      },
      {
        "number": "43",
        "name": "P1.3",
        "type": "bidirectional",
        "description": "Port 1 bit 3, bi-directional I/O with internal pull-up."
      },
      {
        "number": "44",
        "name": "P1.4",
        "type": "bidirectional",
        "description": "Port 1 bit 4, bi-directional I/O with internal pull-up."
      }
    ],
    "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+vision",
        "consensus_model": "claude-opus-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Package conflict: the parts list (page 6) gives W78E054DFG as PQFP-44, while TQFP-44 is W78E054DTG. ",
          "vision extraction: provenance cannot be text-verified; needs consensus"
        ],
        "pages_sent": 89,
        "cost_usd": 0.8033,
        "at": "2026-10-26T18:39:21"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/fa303376662cc698bf9411c792b844f4.pdf",
        "pages": 89,
        "sha256": "c3cab453b742088d",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 44,
        "described": 44,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "w78e054dfg.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "61ecec1147f835d2c9d165c450b1c8d53e65b038f6ca1dac3066a2dfb1bbbb85",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "w78e054dfg-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "80ec5f727dcb896970e6f1d4967546bfc9bc8bf76e45333c56dd2411d82e6098",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}