FM33LG046

{
  "slug": "fm33lg046",
  "version": "0.1.0",
  "type": "component",
  "description": "FUDAN MICRO Microcontroller Units (MCUs/MPUs/SOCs), LQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "single chip microcomputer-microcontroller",
    "fm33lg046",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "fm33lg046.kicad_sym",
    "fm33lg046.kicad_mod",
    "fm33lg046.glb",
    "fm33lg046.step",
    "fm33lg046.lbr",
    "docs/hero.png",
    "docs/fm33lg046-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "fm33lg046-hero.glb",
    "fm33lg046-hero.overlay.json",
    "fm33lg046-etched.glb"
  ],
  "component": {
    "mpn": "FM33LG046",
    "manufacturer": "FUDAN MICRO",
    "package": "LQFP-64(10x10)",
    "pin_count": 64,
    "category": "Single Chip Microcomputer/Microcontroller",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/f4261f09dadb411ee10066073e041354.pdf",
    "parts": {
      "symbol": "fm33lg046.kicad_sym",
      "footprint": "fm33lg046.kicad_mod",
      "model_3d": "fm33lg046-hero.glb",
      "model_3d_plain": "fm33lg046-etched.glb",
      "model_3d_step": "fm33lg046-etched.step",
      "model_3d_step_plain": "fm33lg046.step",
      "lbr": "fm33lg046.lbr"
    },
    "distributor_links": {
      "lcsc": "C5362850"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T03:24:18Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "NRST",
        "type": "input",
        "description": "Active-low reset pin with internal digital filtering; hold low for more than 2 ms to ensure a reliable global reset."
      },
      {
        "number": "2",
        "name": "PA13",
        "type": "bidirectional",
        "description": "GPIO with alternate functions UART0_RX, LPUART0_RX and ADC_IN4."
      },
      {
        "number": "3",
        "name": "PA14",
        "type": "bidirectional",
        "description": "GPIO with alternate functions UART0_TX, LPUART0_TX and ADC_IN11."
      },
      {
        "number": "4",
        "name": "PA15",
        "type": "bidirectional",
        "description": "GPIO with alternate functions WKUP0 external wake-up, SVS external supply detection and COMP3_OUT."
      },
      {
        "number": "5",
        "name": "PA0",
        "type": "bidirectional",
        "description": "GPIO with alternate functions COM0 (LCD), UART4_RX, ADC_IN5 and LUT3_OUT."
      },
      {
        "number": "6",
        "name": "PA1",
        "type": "bidirectional",
        "description": "GPIO with alternate functions COM1 (LCD), UART4_TX, ADC_IN12 and LUT2_OUT."
      },
      {
        "number": "7",
        "name": "PA2",
        "type": "bidirectional",
        "description": "GPIO with alternate functions COM2 (LCD), UART0_RX and LPUART0_RX."
      },
      {
        "number": "8",
        "name": "PA3",
        "type": "bidirectional",
        "description": "GPIO with alternate functions COM3 (LCD), UART0_TX and LPUART0_TX."
      },
      {
        "number": "9",
        "name": "PA4",
        "type": "bidirectional",
        "description": "GPIO with alternate functions COM4/SEG28 (LCD), GPT1_CH3 and COMP2_INN1."
      },
      {
        "number": "10",
        "name": "PA5",
        "type": "bidirectional",
        "description": "GPIO with alternate functions COM5/SEG29 (LCD), GPT1_CH4 and COMP2_INN2."
      },
      {
        "number": "11",
        "name": "PA6",
        "type": "bidirectional",
        "description": "GPIO with alternate functions COM6/SEG30 (LCD), OPA1_INN2 and CAN_RX."
      },
      {
        "number": "12",
        "name": "PA7",
        "type": "bidirectional",
        "description": "GPIO with alternate functions COM7/SEG31 (LCD), OPA1_INP2 and CAN_TX."
      },
      {
        "number": "13",
        "name": "PA8",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG0 (LCD), LPT32_CH1, SPI1_SSN and COMP2_INP1."
      },
      {
        "number": "14",
        "name": "PA9",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG1 (LCD), LPT32_CH2, SPI1_SCK and COMP2_INP2."
      },
      {
        "number": "15",
        "name": "PA10",
        "type": "bidirectional",
        "description": "GPIO with alternate functions WKUP1 wake-up, SEG2 (LCD), LPT32_ETR and COMP1_INN1."
      },
      {
        "number": "16",
        "name": "PA11",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG32 (LCD), I2C SCL and LPUART2_RX; high-drive pin (VOL 1.1 V at 20 mA, VDD=5 V)."
      },
      {
        "number": "17",
        "name": "PA12",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG33 (LCD), I2C SDA and LPUART2_TX; high-drive pin (VOL 1.1 V at 20 mA, VDD=5 V)."
      },
      {
        "number": "18",
        "name": "PB0",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG34 (LCD), UART3_RX, SPI1_MISO and OPA1_OUT3."
      },
      {
        "number": "19",
        "name": "PB1",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG35 (LCD), UART3_TX, SPI1_MOSI and OPA1_OUT4."
      },
      {
        "number": "20",
        "name": "PB2",
        "type": "bidirectional",
        "description": "GPIO with alternate functions WKUP2 wake-up, VCIN1 (LCD capacitor drive), UART4_RX and ATIM_CH1N."
      },
      {
        "number": "21",
        "name": "PB3",
        "type": "bidirectional",
        "description": "GPIO with alternate functions VCIN2 (LCD capacitor drive), UART4_TX and ATIM_CH2N."
      },
      {
        "number": "22",
        "name": "PB4",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG3 (LCD), ATIM_CH1, LPUART2_RX and COMP3_INN1."
      },
      {
        "number": "23",
        "name": "PB5",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG4 (LCD), ATIM_CH2, LPUART2_TX and COMP3_INN2."
      },
      {
        "number": "24",
        "name": "PB6",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG5 (LCD), ATIM_CH3 and SPI2_SSN."
      },
      {
        "number": "25",
        "name": "PB7",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG6 (LCD), ATIM_CH4, SPI2_SCK and ANATST (factory test channel)."
      },
      {
        "number": "26",
        "name": "PB8",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG7 (LCD), SPI0_SSN, ATIM_CH3N and COMP1_INP1."
      },
      {
        "number": "27",
        "name": "PB9",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG8 (LCD), COMP1_INP2, SPI0_SCK and GPT0_ETR."
      },
      {
        "number": "28",
        "name": "PB10",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG9 (LCD), OPA1_INN1, SPI0_MISO and GPT0_CH1."
      },
      {
        "number": "29",
        "name": "PB11",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG10 (LCD), OPA1_INP1, SPI0_MOSI and GPT0_CH2."
      },
      {
        "number": "30",
        "name": "PB12",
        "type": "bidirectional",
        "description": "GPIO with alternate functions WKUP3 wake-up, FOUT1 clock output, ATIM_ETR and OPA1_OUT1."
      },
      {
        "number": "31",
        "name": "PB13",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG11 (LCD), UART1_RX and LPUART1_RX."
      },
      {
        "number": "32",
        "name": "PB14",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG12 (LCD), UART1_TX and LPUART1_TX."
      },
      {
        "number": "33",
        "name": "PD12",
        "type": "bidirectional",
        "description": "GPIO with alternate functions VDISP1 (LCD external capacitor), I2C SDA and SPI2_MOSI."
      },
      {
        "number": "34",
        "name": "PC0",
        "type": "bidirectional",
        "description": "GPIO with alternate functions VDISP2 (LCD external capacitor), COMP3_INP1, LUT0_OUT and GPT1_CH1."
      },
      {
        "number": "35",
        "name": "PC1",
        "type": "bidirectional",
        "description": "GPIO with alternate functions VDISP3 (LCD external capacitor), COMP3_INP2, LUT1_OUT and GPT1_CH2."
      },
      {
        "number": "36",
        "name": "PC2",
        "type": "bidirectional",
        "description": "GPIO with alternate functions XTHIN (high-frequency crystal input), UART1_RX and LPUART1_RX."
      },
      {
        "number": "37",
        "name": "PC3",
        "type": "bidirectional",
        "description": "GPIO with alternate functions XTHOUT (high-frequency crystal output), UART1_TX and LPUART1_TX."
      },
      {
        "number": "38",
        "name": "PC4",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG13 (LCD), OPA1_OUT2, COMP1_OUT and UART5_RX."
      },
      {
        "number": "39",
        "name": "PC5",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG14 (LCD), DAC_OUT, COMP2_OUT and UART5_TX."
      },
      {
        "number": "40",
        "name": "PC6",
        "type": "bidirectional",
        "description": "GPIO with alternate functions WKUP4 wake-up, SEG15 (LCD), GPT1_ETR and COMP1_INN2."
      },
      {
        "number": "41",
        "name": "PC7",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG16 (LCD), SPI2_SSN and ADC_IN6."
      },
      {
        "number": "42",
        "name": "PC8",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG17 (LCD), SPI2_SCK and ADC_IN13."
      },
      {
        "number": "43",
        "name": "PC9",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG18 (LCD), SPI2_MISO and ADC_IN14."
      },
      {
        "number": "44",
        "name": "PC10",
        "type": "bidirectional",
        "description": "GPIO with alternate functions WKUP5 wake-up, SEG19 (LCD), SPI2_MOSI and ADC_IN15."
      },
      {
        "number": "45",
        "name": "PC11",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG20 (LCD), U7816CLK, GPT0_CH3 and ADC_IN16."
      },
      {
        "number": "46",
        "name": "PC12",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG21 (LCD), U7816IO (10K pull-up), GPT0_CH4 and ADC_IN17."
      },
      {
        "number": "47",
        "name": "PH15",
        "type": "bidirectional",
        "description": "Backup-domain GPIO (5V tolerant, internal pull-up) with RTCOUT output and Tamper detection input; max source current 1 mA."
      },
      {
        "number": "48",
        "name": "XT32KO",
        "type": "output",
        "description": "32768 Hz crystal oscillator output."
      },
      {
        "number": "49",
        "name": "XT32KI",
        "type": "input",
        "description": "32768 Hz crystal oscillator input."
      },
      {
        "number": "50",
        "name": "VDD15",
        "type": "power_out",
        "description": "Internal LDO 1.5 V core supply output; connect a 100 nF capacitor to ground (0.1~1 uF)."
      },
      {
        "number": "51",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground (VSSA)."
      },
      {
        "number": "52",
        "name": "VDD",
        "type": "power_in",
        "description": "Main power supply (VDDA), 1.65~5.5 V operating range."
      },
      {
        "number": "53",
        "name": "VREFP",
        "type": "passive",
        "description": "ADC/DAC reference voltage pin; external reference (1.6 V ≤ VREFP ≤ VDDA) or internal VREFP_VREG output with a 1 uF capacitor."
      },
      {
        "number": "54",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup supply for the RTC domain, 1.5~4.2 V with power switching, or tie to VDD (up to 5.5 V) when not used."
      },
      {
        "number": "55",
        "name": "PD11",
        "type": "bidirectional",
        "description": "GPIO with alternate functions WKUP6 wake-up, FOUT0 clock output, ATIM_BRK1 and ADC_IN0."
      },
      {
        "number": "56",
        "name": "PD0",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG22 (LCD), UART5_RX, GPT2_CH1 and ADC_IN7."
      },
      {
        "number": "57",
        "name": "PD1",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG23 (LCD), UART5_TX, GPT2_CH2 and ADC_IN1."
      },
      {
        "number": "58",
        "name": "PD2",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG24 (LCD), SPI1_SSN, GPT2_CH3 and ADC_IN8."
      },
      {
        "number": "59",
        "name": "PD3",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG25 (LCD), SPI1_SCK, GPT2_CH4 and ADC_IN2."
      },
      {
        "number": "60",
        "name": "PD4",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG26 (LCD), SPI1_MISO, GPT2_ETR and ADC_IN9."
      },
      {
        "number": "61",
        "name": "PD5",
        "type": "bidirectional",
        "description": "GPIO with alternate functions SEG27 (LCD), SPI1_MOSI, LPT16_ETR and ADC_IN3."
      },
      {
        "number": "62",
        "name": "PD6",
        "type": "bidirectional",
        "description": "GPIO with alternate functions WKUP7 wake-up, ANATST analog test, ATIM_BRK2 and ADC_IN10."
      },
      {
        "number": "63",
        "name": "PD7",
        "type": "bidirectional",
        "description": "GPIO with alternate functions UART3_RX and SWCLK (SWD clock)."
      },
      {
        "number": "64",
        "name": "PD8",
        "type": "bidirectional",
        "description": "GPIO with alternate functions UART3_TX and SWIO (SWD data)."
      }
    ],
    "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: Table 2-1 lists PB1's first function as '外部唤醒引脚' (external wake-up) instead of GPIO, which looks lik; VREFP is either an external reference input or an internally generated output (VREFP_VREG), so it wa; The datasheet covers the whole FM33LG0 family. The LQFP64 column applies to FM33LG0x6, and the MPN F"
        ],
        "pages_sent": 107,
        "cost_usd": 0.8319,
        "at": "2026-10-23T03:23:53"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/f4261f09dadb411ee10066073e041354.pdf",
        "pages": 840,
        "sha256": "7eb96124383c2857",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 64,
        "described": 64,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "fm33lg046.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b0c827bc5c05552175d28affe44a5bd2ab45c9c36efff6ff07a74cc449b13db4",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "fm33lg046-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "993db92aa22e1520b9229b524338d15a76dfd8e4d2e52c93500ad44186442554",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}