FU6831N

{
  "schema_version": 1,
  "type": "component",
  "slug": "fu6831n",
  "title": "FU6831N",
  "brief": "Fortior Tech Microcontrollers (MCU/MPU/SOC), QFN-32-EP(4x4). 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",
    "embedded processors & controllers",
    "fu6831n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "FU6831N",
    "manufacturer": "Fortior Tech",
    "package": "QFN-32-EP(4x4)",
    "pin_count": 33,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586181844706058240",
    "parts": {
      "symbol": "fu6831n.kicad_sym",
      "footprint": "fu6831n.kicad_mod",
      "model_3d": "fu6831n-hero.glb",
      "model_3d_plain": "fu6831n-etched.glb",
      "model_3d_step": "fu6831n-etched.step",
      "model_3d_step_plain": "fu6831n.step",
      "lbr": "fu6831n.lbr"
    },
    "distributor_links": {
      "lcsc": "C98870"
    },
    "distributor_check": {
      "checked_at": "2026-10-20T22:41:46Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "P2.6/C3M",
        "type": "bidirectional",
        "description": "GPIO with configurable external interrupt INT1 input; serves as the overcurrent reference signal input and the negative input of comparator CMP3."
      },
      {
        "number": "2",
        "name": "P2.7/AD4/C3P/A0O",
        "type": "bidirectional",
        "description": "GPIO with configurable INT1 input; ADC channel 4 input for the amplified bus-current signal, positive input of CMP3 for bus-current overcurrent detection, and AMP0 output carrying the amplified bus-current voltage."
      },
      {
        "number": "3",
        "name": "P3.0/A0M",
        "type": "bidirectional",
        "description": "GPIO; negative input of AMP0, used to amplify the bus-current signal."
      },
      {
        "number": "4",
        "name": "P3.1/A0P",
        "type": "bidirectional",
        "description": "GPIO; positive input of AMP0, used to amplify the bus-current signal."
      },
      {
        "number": "5",
        "name": "P3.2/AD5/TIM0/VHALF",
        "type": "bidirectional",
        "description": "GPIO; over-temperature signal input and ADC channel 5 input, also Advanced timer channel 4 output and 1/2 VDD5 or 1/2 VREF reference output that requires an external 1 µF capacitor."
      },
      {
        "number": "6",
        "name": "P3.4/AD7/TXD2/IR_TXD2",
        "type": "bidirectional",
        "description": "GPIO; analog speed-control input on ADC channel 7, with UART2 transmit and infrared transmit functions after function transfer."
      },
      {
        "number": "7",
        "name": "P3.5/VREF",
        "type": "bidirectional",
        "description": "GPIO; ADC external reference voltage input or internal VREF output, requiring an external 1 µF capacitor."
      },
      {
        "number": "8",
        "name": "AVSS",
        "type": "power_in",
        "description": "Analog ground."
      },
      {
        "number": "9",
        "name": "AVDD5",
        "type": "power_in",
        "description": "Analog supply input, connected externally to VDD5 with a 1 µF capacitor to AVSS."
      },
      {
        "number": "10",
        "name": "P0.0/SDA",
        "type": "bidirectional",
        "description": "GPIO with configurable INT0 input; I2C SDA open-drain output with optional 4.7 kΩ pull-up."
      },
      {
        "number": "11",
        "name": "P0.1/SCL/TIM4",
        "type": "bidirectional",
        "description": "GPIO; I2C SCL clock open-drain output with optional 4.7 kΩ pull-up, or Timer4 input/output."
      },
      {
        "number": "12",
        "name": "P1.4/C0P/P2.4/AD2",
        "type": "bidirectional",
        "description": "Multiplexed pin: P1.4 GPIO with INT1 and optional 4.7 kΩ pull-up, Timer1 switch Hall0 input and differential Hall0/BEMF0 positive input; or P2.4 GPIO with INT1 and ADC channel 2 input for the bus-voltage signal."
      },
      {
        "number": "13",
        "name": "P0.5/MOSI/TXD/IR_TXD",
        "type": "bidirectional",
        "description": "GPIO; SPI MOSI (master output or slave input), UART1 transmit and infrared transmit before function transfer."
      },
      {
        "number": "14",
        "name": "P0.6/MISO/RXD/IR_RXD",
        "type": "bidirectional",
        "description": "GPIO; SPI MISO (master input or slave output), UART1 receive and infrared receive before function transfer."
      },
      {
        "number": "15",
        "name": "P0.7/SCLK/TIM5/CXO",
        "type": "bidirectional",
        "description": "GPIO; SPI clock, Timer5 capture input or PWM output, and comparator output test pin."
      },
      {
        "number": "16",
        "name": "P1.1/TIM3",
        "type": "bidirectional",
        "description": "GPIO with configurable INT1 input; Timer3 capture input or PWM output."
      },
      {
        "number": "17",
        "name": "H_PU",
        "type": "output",
        "description": "3P3N Predriver high-side U-phase voltage output with internal 47 kΩ pull-up."
      },
      {
        "number": "18",
        "name": "H_PV",
        "type": "output",
        "description": "3P3N Predriver high-side V-phase voltage output with internal 47 kΩ pull-up."
      },
      {
        "number": "19",
        "name": "H_PW",
        "type": "output",
        "description": "3P3N Predriver high-side W-phase voltage output with internal 47 kΩ pull-up."
      },
      {
        "number": "20",
        "name": "L_U",
        "type": "output",
        "description": "3P3N Predriver low-side U-phase voltage output with internal 47 kΩ pull-down."
      },
      {
        "number": "21",
        "name": "L_V",
        "type": "output",
        "description": "3P3N Predriver low-side V-phase voltage output with internal 47 kΩ pull-down."
      },
      {
        "number": "22",
        "name": "L_W",
        "type": "output",
        "description": "3P3N Predriver low-side W-phase voltage output with internal 47 kΩ pull-down."
      },
      {
        "number": "23",
        "name": "VBB",
        "type": "power_out",
        "description": "10 V LDO output; connect an external 1 µF to 4.7 µF capacitor."
      },
      {
        "number": "24",
        "name": "VCC",
        "type": "power_in",
        "description": "Power input for an external 5 V to 24 V supply, with VDD5 generated by the internal LDO; add a 10 µF or larger filter capacitor."
      },
      {
        "number": "25",
        "name": "VSS",
        "type": "power_in",
        "description": "Digital ground."
      },
      {
        "number": "26",
        "name": "VDD5",
        "type": "power_out",
        "description": "Internal 5 V LDO output supply; connect an external 1 µF to 4.7 µF capacitor."
      },
      {
        "number": "27",
        "name": "RSTN/FICEK",
        "type": "input",
        "description": "External reset input with internal pull-up; also the FICE debug interface clock."
      },
      {
        "number": "28",
        "name": "VDD18",
        "type": "power_out",
        "description": "1.85 V LDO output; connect an external 1 µF to 4.7 µF capacitor."
      },
      {
        "number": "29",
        "name": "P1.2/FICED",
        "type": "bidirectional",
        "description": "GPIO with configurable INT1 input; FICE debug interface data port."
      },
      {
        "number": "30",
        "name": "P1.3/HBIAS",
        "type": "bidirectional",
        "description": "GPIO; Hall bias supply switched internally to VDD5, capable of high-current output."
      },
      {
        "number": "31",
        "name": "P1.6/C1P/P2.0/AD0",
        "type": "bidirectional",
        "description": "Multiplexed pin: P1.6 GPIO with INT1 and optional 4.7 kΩ pull-up, Timer1 switch Hall1 input and differential Hall1/BEMF1 positive input; or P2.0 GPIO with INT1 and ADC channel 0 input for the amplified phase-current 1 signal."
      },
      {
        "number": "32",
        "name": "P2.1/C2P/P2.3/AD1",
        "type": "bidirectional",
        "description": "Multiplexed pin: P2.1 GPIO with INT1 and optional 4.7 kΩ pull-up, Timer1 switch Hall2 input and differential Hall2/BEMF2 positive input; or P2.3 GPIO with INT1 and ADC channel 1 input for the amplified phase-current 2 signal."
      },
      {
        "number": "33",
        "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-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: The QFN32_4X4 exposed thermal pad (EP) is not listed as a numbered pin in the FU6831N pin list (sect; Pins 12, 31 and 32 are multiplexed between two GPIO ports; the datasheet's IO type column lists seve; Pin types were assigned from the datasheet IO-type column. VBB, VDD5 and VDD18 are LDO outputs and a",
          "exposed pad 33 added from the footprint"
        ],
        "pages_sent": 78,
        "cost_usd": 0.2879,
        "at": "2026-10-20T22:39:27"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586181844706058240",
        "pages": 292,
        "sha256": "d5a21e4e7fe9a48c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 33,
        "described": 33,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "fu6831n.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.6
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "7b482a511cdf2cf875c31931f9fea7f745b8dac2ea6203531cd6604f40a290cb",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "fu6831n-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "75b4804b8a038f26f23c0d53406e21a4976f905014dd7d10ba6fac0804ba21c5",
        "checked": "2026-10-20",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Fortior Tech",
      "Package": "QFN-32-EP(4x4)",
      "Category": "Embedded Processors & Controllers",
      "Pins": "33"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "d5a21e4e7fe9a48c157f05ac50a4f1a4c603a98cb7fb351b2142e4d4ac5ebee5",
      "rows": [
        {
          "name": "TJ工作时结温 (junction temperature, operating)",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 68,
          "source": "datasheet"
        },
        {
          "name": "储存温度 (storage temperature)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 68,
          "source": "datasheet"
        },
        {
          "name": "VCC 相对 VSS 的电压 (VCC to VSS voltage)",
          "symbol": "VCC",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 36,
          "conditions": "",
          "source_page": 68,
          "source": "datasheet"
        },
        {
          "name": "VDD5 相对 VSS 的电压 (VDD5 to VSS voltage)",
          "symbol": "VDD5",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 68,
          "source": "datasheet"
        },
        {
          "name": "RSTN、VCC_MODE、GPIO 相对 VSS 的电压 (RSTN, VCC_MODE, GPIO to VSS voltage)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 68,
          "source": "datasheet"
        },
        {
          "name": "VCC 工作电压, 单电源高压模式 (single-supply high-voltage mode)",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 5,
          "typ": null,
          "max": 24,
          "conditions": "单电源高压模式, TA = -40℃ ~ 85℃",
          "source_page": 71,
          "source": "datasheet"
        },
        {
          "name": "VCC 工作电压, 双电源高压模式 (dual-supply high-voltage mode)",
          "symbol": "VCC",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 5,
          "typ": null,
          "max": 36,
          "conditions": "双电源高压模式, VCC_MODE = 1, VCC ≥ VDD5",
          "source_page": 71,
          "source": "datasheet"
        },
        {
          "name": "IVCC睡眠电流 (sleep current)",
          "symbol": "IVCC",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 100,
          "max": 250,
          "conditions": "TA = 25℃, VCC = 15V, VCC_MODE = 0",
          "source_page": 71,
          "source": "datasheet"
        },
        {
          "name": "工作时环境温度 TA (operating ambient temperature)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 71,
          "source": "datasheet"
        },
        {
          "name": "工作时环境温度 TA (operating ambient temperature, VCC_MODE = VDD5 = 5V)",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "VCC_MODE = VDD5 = 5V, VCC ≤ 24V",
          "source_page": 71,
          "source": "datasheet"
        },
        {
          "name": "采样时间 (sampling time, 12-bit mode)",
          "symbol": "",
          "kind": "electrical",
          "unit": "ADCLK",
          "min": 3,
          "typ": null,
          "max": 63,
          "conditions": "",
          "source_page": 79,
          "source": "datasheet"
        },
        {
          "name": "VREF 参考电压, VREF_CR[VREFVSEL] = 10 (reference voltage)",
          "symbol": "VREF",
          "kind": "electrical",
          "unit": "V",
          "min": 4.3,
          "typ": 4.5,
          "max": 4.7,
          "conditions": "VREF_CR[VREFVSEL] = 10, TA = -40℃ ~ 85℃, VCC = 15V, VCC_MODE = 0",
          "source_page": 80,
          "source": "datasheet"
        },
        {
          "name": "VICMR 运放共模输入范围下限 (op-amp common-mode input range, min)",
          "symbol": "VICMR",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "TA = 25℃, VCC = 15V, VCC_MODE = 0",
          "source_page": 80,
          "source": "datasheet"
        },
        {
          "name": "VOS 运放失配电压 (op-amp offset voltage)",
          "symbol": "VOS",
          "kind": "electrical",
          "unit": "mV",
          "min": null,
          "typ": 5,
          "max": 10,
          "conditions": "TA = 25℃",
          "source_page": 80,
          "source": "datasheet"
        },
        {
          "name": "UGBW 单位增益带宽 (unity-gain bandwidth)",
          "symbol": "UGBW",
          "kind": "electrical",
          "unit": "MHz",
          "min": 6,
          "typ": 10,
          "max": null,
          "conditions": "CL = 40pF",
          "source_page": 80,
          "source": "datasheet"
        },
        {
          "name": "SR 运放摆率 (slew rate)",
          "symbol": "SR",
          "kind": "electrical",
          "unit": "V/μs",
          "min": 10,
          "typ": 15,
          "max": null,
          "conditions": "CL = 40pF",
          "source_page": 80,
          "source": "datasheet"
        },
        {
          "name": "VICMR 比较器共模输入范围下限 (comparator common-mode input range, min)",
          "symbol": "VICMR",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "TA = 25℃, VCC = 15V, VCC_MODE = 0",
          "source_page": 80,
          "source": "datasheet"
        },
        {
          "name": "BEMF 内置电阻 (built-in BEMF resistance)",
          "symbol": "",
          "kind": "electrical",
          "unit": "KΩ",
          "min": 5.4,
          "typ": 6.8,
          "max": 8.2,
          "conditions": "TA = 25℃, VCC = 15V, VCC_MODE = 0",
          "source_page": 81,
          "source": "datasheet"
        },
        {
          "name": "系统时钟频率 (system clock frequency)",
          "symbol": "",
          "kind": "electrical",
          "unit": "MHz",
          "min": 23.5,
          "typ": 24,
          "max": 24.5,
          "conditions": "TA = -40℃ ~ 85℃, VCC = 5V ~ 24V, VCC_MODE = 0",
          "source_page": 81,
          "source": "datasheet"
        },
        {
          "name": "低速时钟频率 (low-speed clock frequency)",
          "symbol": "",
          "kind": "electrical",
          "unit": "KHz",
          "min": 29,
          "typ": 32.8,
          "max": 37,
          "conditions": "TA = -40℃ ~ 85℃, VCC = 5V ~ 24V, VCC_MODE = 0",
          "source_page": 81,
          "source": "datasheet"
        },
        {
          "name": "RSTN 复位低电平最小宽度 (reset low pulse width)",
          "symbol": "RSTN",
          "kind": "timing",
          "unit": "μs",
          "min": null,
          "typ": 25,
          "max": 50,
          "conditions": "TA = 25℃, VCC = 15V, VCC_MODE = 0",
          "source_page": 81,
          "source": "datasheet"
        },
        {
          "name": "VDD5 电压 (LDO output voltage)",
          "symbol": "VDD5",
          "kind": "electrical",
          "unit": "V",
          "min": 4.7,
          "typ": 5,
          "max": 5.3,
          "conditions": "VCC = 7V ~ 24V, VCC_MODE = 0, TA = -40℃ ~ 85℃",
          "source_page": 82,
          "source": "datasheet"
        },
        {
          "name": "VBB 电压 (VBB voltage)",
          "symbol": "VBB",
          "kind": "electrical",
          "unit": "V",
          "min": 9,
          "typ": 10,
          "max": 11,
          "conditions": "VCC = 12V ~ 30V",
          "source_page": 82,
          "source": "datasheet"
        },
        {
          "name": "VBB 启动时间 (VBB start-up time)",
          "symbol": "",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": null,
          "max": 1,
          "conditions": "使能至稳定值 95%输出，1μF 电容",
          "source_page": 82,
          "source": "datasheet"
        },
        {
          "name": "ƟJA 芯片结温相对环境温度 (junction-to-ambient, 2S2P PCB)",
          "symbol": "ƟJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 47,
          "max": null,
          "conditions": "JEDEC 标准，2S2P PCB",
          "source_page": 83,
          "source": "datasheet"
        },
        {
          "name": "ƟJA 芯片结温相对环境温度 (junction-to-ambient, 1S0P PCB)",
          "symbol": "ƟJA",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 74,
          "max": null,
          "conditions": "JEDEC 标准，1S0P PCB",
          "source_page": 83,
          "source": "datasheet"
        },
        {
          "name": "ƟJC 芯片结温相对封装表面温度 (junction-to-case, 1S0P PCB)",
          "symbol": "ƟJC",
          "kind": "thermal",
          "unit": "℃/W",
          "min": null,
          "typ": 20,
          "max": null,
          "conditions": "JEDEC 标准，1S0P PCB",
          "source_page": 83,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "fu6831n"
  ],
  "discovery_pitch": "FU6831N (Fortior Tech) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
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  "files": [
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    "README.md",
    "fu6831n.kicad_sym",
    "fu6831n.kicad_mod",
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