FU5821T

{
  "slug": "fu5821t",
  "version": "0.1.0",
  "type": "component",
  "description": "Fortior Tech Microcontroller Units (MCUs/MPUs/SOCs), TSSOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "single chip microcomputer-microcontroller",
    "fu5821t",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "fu5821t.kicad_sym",
    "fu5821t.kicad_mod",
    "fu5821t.glb",
    "fu5821t.step",
    "fu5821t.lbr",
    "docs/hero.png",
    "docs/fu5821t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "fu5821t-hero.glb",
    "fu5821t-hero.overlay.json",
    "fu5821t-etched.glb"
  ],
  "component": {
    "mpn": "FU5821T",
    "manufacturer": "Fortior Tech",
    "package": "TSSOP-16",
    "pin_count": 16,
    "category": "Single Chip Microcomputer/Microcontroller",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/49bffc67d9625026cd702400675fb91e.pdf",
    "parts": {
      "symbol": "fu5821t.kicad_sym",
      "footprint": "fu5821t.kicad_mod",
      "model_3d": "fu5821t-hero.glb",
      "model_3d_plain": "fu5821t-etched.glb",
      "model_3d_step": "fu5821t-etched.step",
      "model_3d_step_plain": "fu5821t.step",
      "lbr": "fu5821t.lbr"
    },
    "distributor_links": {
      "lcsc": "C5128841"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T12:15:28Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "P0.1/TIM4/SDA/TXD",
        "type": "bidirectional",
        "description": "GPIO with configurable INT0 input and open-drain output, also Timer4 I/O, I2C SDA (can be open-drain) and UART TXD open-drain output."
      },
      {
        "number": "2",
        "name": "H_PU",
        "type": "output",
        "description": "2P2N-mode pre-driver high-side U-phase output with built-in 50kΩ pull-up resistor."
      },
      {
        "number": "3",
        "name": "H_PV",
        "type": "output",
        "description": "2P2N-mode pre-driver high-side V-phase output with built-in 50kΩ pull-up resistor."
      },
      {
        "number": "4",
        "name": "L_U",
        "type": "output",
        "description": "2P2N-mode pre-driver low-side U-phase output with built-in 25kΩ pull-down resistor."
      },
      {
        "number": "5",
        "name": "L_V",
        "type": "output",
        "description": "2P2N-mode pre-driver low-side V-phase output with built-in 25kΩ pull-down resistor."
      },
      {
        "number": "6",
        "name": "VCC",
        "type": "power_in",
        "description": "Power supply input, requires an external filter capacitor of 2.2μF or larger."
      },
      {
        "number": "7",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "8",
        "name": "VDD5",
        "type": "power_in",
        "description": "Medium-voltage supply input or internal 5V LDO output supply, with an external 1 to 4.7μF capacitor."
      },
      {
        "number": "9",
        "name": "RSTN/FICEK",
        "type": "input",
        "description": "External reset input (chip resets when low for more than 50μs) and FICE clock pin."
      },
      {
        "number": "10",
        "name": "P1.2/TIM4S/TIM2/TXDS/FICED",
        "type": "bidirectional",
        "description": "GPIO with configurable INT0/INT1 input, also remapped Timer4 I/O, Timer2 I/O, remapped UART TXD output and FICE data pin."
      },
      {
        "number": "11",
        "name": "P1.6/C0M/AD5",
        "type": "bidirectional",
        "description": "GPIO with configurable INT1 input, CMP0 negative input and ADC channel 5 input."
      },
      {
        "number": "12",
        "name": "P0.4/TIM2S/C0P/AD6",
        "type": "bidirectional",
        "description": "GPIO with configurable INT0/INT1 input, remapped Timer2 I/O, CMP0 positive input and ADC channel 6 input."
      },
      {
        "number": "13",
        "name": "P0.6/ISEN/AD0",
        "type": "input",
        "description": "Input port P0.6, bus current sense input and ADC channel 0 input."
      },
      {
        "number": "14",
        "name": "P0.2/HALP/AD2",
        "type": "bidirectional",
        "description": "GPIO used for Hall logic-level input, differential Hall positive input and ADC channel 2 input."
      },
      {
        "number": "15",
        "name": "P0.3/HALM/AD3",
        "type": "bidirectional",
        "description": "GPIO, differential Hall negative input and ADC channel 3 input."
      },
      {
        "number": "16",
        "name": "P1.1/TIM3/SCL/RXD/AD7",
        "type": "bidirectional",
        "description": "GPIO with configurable INT0/INT1 input and configurable pull-up/pull-down, Timer3 I/O, I2C SCL (can be open-drain), UART RXD input (or TXD output/RXD input in single-wire mode) and ADC channel 7 input."
      }
    ],
    "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: Pin types for multi-function pins were chosen as bidirectional/input/output from the datasheet IO ty"
        ],
        "pages_sent": 34,
        "cost_usd": 0.1936,
        "at": "2026-10-23T12:15:09"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/49bffc67d9625026cd702400675fb91e.pdf",
        "pages": 157,
        "sha256": "baf47c2e26fc12de",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 16,
        "described": 16,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "fu5821t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "6ad5e98224d02a427d9a6b929a28dbc158b9925fba5adec12db05079f1016948",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "fu5821t-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "ca4bbfcbd5c45071a23283067b6505d6412e3f49b97fa6bd21c8b8d96ea7ac98",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}