FM33LC045N

{
  "slug": "fm33lc045n",
  "version": "0.1.0",
  "type": "component",
  "description": "FUDAN MICRO Other Processors and Microcontrollers (MCUs), LQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "fm33lc045n",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "fm33lc045n.kicad_sym",
    "fm33lc045n.kicad_mod",
    "fm33lc045n.glb",
    "fm33lc045n.step",
    "fm33lc045n.lbr",
    "docs/hero.png",
    "docs/fm33lc045n-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "fm33lc045n-hero.glb",
    "fm33lc045n-hero.overlay.json",
    "fm33lc045n-etched.glb"
  ],
  "component": {
    "mpn": "FM33LC045N",
    "manufacturer": "FUDAN MICRO",
    "package": "LQFP-48(7x7)",
    "pin_count": 48,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Other Processors and Microcontrollers (MCUs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/07233dfde9eabce59aac9f2feec44738.pdf",
    "parts": {
      "symbol": "fm33lc045n.kicad_sym",
      "footprint": "fm33lc045n.kicad_mod",
      "model_3d": "fm33lc045n-hero.glb",
      "model_3d_plain": "fm33lc045n-etched.glb",
      "model_3d_step": "fm33lc045n-etched.step",
      "model_3d_step_plain": "fm33lc045n.step",
      "lbr": "fm33lc045n.lbr"
    },
    "distributor_links": {
      "lcsc": "C908398"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T23:11:09Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 669 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PA14",
        "type": "bidirectional",
        "description": "GPIO with UART0_TX, LPUART0_TX and ADC_IN7 alternate functions."
      },
      {
        "number": "2",
        "name": "PA15",
        "type": "bidirectional",
        "description": "GPIO with WKUP0 external wake-up, SVS external supply detect and ADC_IN10."
      },
      {
        "number": "3",
        "name": "PA0",
        "type": "bidirectional",
        "description": "GPIO with LCD COM0 and UART4_RX."
      },
      {
        "number": "4",
        "name": "PA1",
        "type": "bidirectional",
        "description": "GPIO with LCD COM1 and UART4_TX."
      },
      {
        "number": "5",
        "name": "PA2",
        "type": "bidirectional",
        "description": "GPIO with LCD COM2, UART0_RX and LPUART0_RX."
      },
      {
        "number": "6",
        "name": "PA3",
        "type": "bidirectional",
        "description": "GPIO with LCD COM3, UART0_TX and LPUART0_TX."
      },
      {
        "number": "7",
        "name": "PA4",
        "type": "bidirectional",
        "description": "GPIO with LCD COM4/SEG28, GPT1_CH3 and COMP2_INN1 comparator input."
      },
      {
        "number": "8",
        "name": "PA5",
        "type": "bidirectional",
        "description": "GPIO with LCD COM5/SEG29, GPT1_CH4 and COMP2_INN2 comparator input."
      },
      {
        "number": "9",
        "name": "PA6",
        "type": "bidirectional",
        "description": "GPIO with LCD COM6/SEG30 and OPA1_INN2 op-amp input."
      },
      {
        "number": "10",
        "name": "PA7",
        "type": "bidirectional",
        "description": "GPIO with LCD COM7/SEG31 and OPA1_INP2 op-amp input."
      },
      {
        "number": "11",
        "name": "PA8",
        "type": "bidirectional",
        "description": "GPIO with LCD SEG0, LPT32_CH1 and COMP2_INP1 comparator input."
      },
      {
        "number": "12",
        "name": "PA9",
        "type": "bidirectional",
        "description": "GPIO with LCD SEG1, LPT32_CH2 and COMP2_INP2 comparator input."
      },
      {
        "number": "13",
        "name": "PA10",
        "type": "bidirectional",
        "description": "GPIO with WKUP1 wake-up, LCD SEG2, LPT32_ETR and COMP1_INN1 comparator input."
      },
      {
        "number": "14",
        "name": "PB2",
        "type": "bidirectional",
        "description": "GPIO with WKUP2 wake-up, UART4_RX and ATIM_CH1N."
      },
      {
        "number": "15",
        "name": "PB3",
        "type": "bidirectional",
        "description": "GPIO with UART4_TX and ATIM_CH2N."
      },
      {
        "number": "16",
        "name": "PB4",
        "type": "bidirectional",
        "description": "GPIO with LCD SEG3 and ATIM_CH1."
      },
      {
        "number": "17",
        "name": "PB5",
        "type": "bidirectional",
        "description": "GPIO with LCD SEG4 and ATIM_CH2."
      },
      {
        "number": "18",
        "name": "PB8",
        "type": "bidirectional",
        "description": "GPIO with LCD SEG7, SPI1_SSN and ATIM_CH3N."
      },
      {
        "number": "19",
        "name": "PB9",
        "type": "bidirectional",
        "description": "GPIO with LCD SEG8, ANATST analog test, SPI1_SCK and GPT0_ETR."
      },
      {
        "number": "20",
        "name": "PB10",
        "type": "bidirectional",
        "description": "GPIO with LCD SEG9, OPA1_INN1 input, SPI1_MISO and GPT0_CH1."
      },
      {
        "number": "21",
        "name": "PB11",
        "type": "bidirectional",
        "description": "GPIO with LCD SEG10, OPA1_INP1 input, SPI1_MOSI and GPT0_CH2."
      },
      {
        "number": "22",
        "name": "PB12",
        "type": "bidirectional",
        "description": "GPIO with WKUP3 wake-up, FOUT1 clock output and ATIM_ETR."
      },
      {
        "number": "23",
        "name": "PB13",
        "type": "bidirectional",
        "description": "GPIO with LCD SEG11, OPA2_INN1 input, UART1_RX and LPUART1_RX."
      },
      {
        "number": "24",
        "name": "PB14",
        "type": "bidirectional",
        "description": "GPIO with LCD SEG12, OPA2_INP1 input, UART1_TX and LPUART1_TX."
      },
      {
        "number": "25",
        "name": "PC0",
        "type": "bidirectional",
        "description": "GPIO with OPA2_INN2 input and GPT1_CH1."
      },
      {
        "number": "26",
        "name": "PC1",
        "type": "bidirectional",
        "description": "GPIO with OPA2_INP2 input and GPT1_CH2."
      },
      {
        "number": "27",
        "name": "PC2",
        "type": "bidirectional",
        "description": "GPIO with XTHIN high-frequency crystal input, UART1_RX and LPUART1_RX."
      },
      {
        "number": "28",
        "name": "PC3",
        "type": "bidirectional",
        "description": "GPIO with XTHOUT high-frequency crystal output, UART1_TX and LPUART1_TX."
      },
      {
        "number": "29",
        "name": "PC4",
        "type": "bidirectional",
        "description": "GPIO with LCD SEG13, OPA1_OUT output and UART5_RX."
      },
      {
        "number": "30",
        "name": "PC5",
        "type": "bidirectional",
        "description": "GPIO with LCD SEG14, OPA2_OUT output and UART5_TX."
      },
      {
        "number": "31",
        "name": "PC6",
        "type": "bidirectional",
        "description": "GPIO with WKUP4 wake-up, LCD SEG15, GPT1_ETR and ADC_IN11."
      },
      {
        "number": "32",
        "name": "PC7",
        "type": "bidirectional",
        "description": "GPIO with LCD SEG16, SPI2_SSN and ADC_IN8."
      },
      {
        "number": "33",
        "name": "PC8",
        "type": "bidirectional",
        "description": "GPIO with LCD SEG17, SPI2_SCK and ADC_IN9."
      },
      {
        "number": "34",
        "name": "PC9",
        "type": "bidirectional",
        "description": "GPIO with LCD SEG18, SPI2_MISO and ADC_IN0."
      },
      {
        "number": "35",
        "name": "PC10",
        "type": "bidirectional",
        "description": "GPIO with WKUP5 wake-up, LCD SEG19, SPI2_MOSI and ADC_IN1."
      },
      {
        "number": "36",
        "name": "PD9",
        "type": "bidirectional",
        "description": "GPIO with XT32KO 32768Hz crystal output."
      },
      {
        "number": "37",
        "name": "PD10",
        "type": "bidirectional",
        "description": "GPIO with XT32KI 32768Hz crystal input."
      },
      {
        "number": "38",
        "name": "VDD15",
        "type": "power_out",
        "description": "LDO output; connect a 100nF capacitor to ground."
      },
      {
        "number": "39",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "40",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply."
      },
      {
        "number": "41",
        "name": "PD11",
        "type": "bidirectional",
        "description": "GPIO with WKUP6 wake-up, FOUT0 clock output, ATIM_BRK1 brake input and ADC_IN2."
      },
      {
        "number": "42",
        "name": "PD0",
        "type": "bidirectional",
        "description": "GPIO with LCD SEG22, UART5_RX and ADC_IN3."
      },
      {
        "number": "43",
        "name": "PD1",
        "type": "bidirectional",
        "description": "GPIO with LCD SEG23, UART5_TX and ADC_IN4."
      },
      {
        "number": "44",
        "name": "PD6",
        "type": "bidirectional",
        "description": "GPIO with WKUP7 wake-up, ANATST analog test and ATIM_BRK2 brake input."
      },
      {
        "number": "45",
        "name": "PD7",
        "type": "bidirectional",
        "description": "GPIO with SWCLK SWD interface clock."
      },
      {
        "number": "46",
        "name": "PD8",
        "type": "bidirectional",
        "description": "GPIO with SWIO SWD interface data."
      },
      {
        "number": "47",
        "name": "NRST",
        "type": "input",
        "description": "Global reset pin; held low for more than 8ms it resets the chip (not the debug logic)."
      },
      {
        "number": "48",
        "name": "PA13",
        "type": "bidirectional",
        "description": "GPIO with UART0_RX, LPUART0_RX and ADC_IN6."
      }
    ],
    "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 numbers were read from the LQFP48 column of the FM33LC0xxN pin table (Table 2-2). The column ali; Pin types are inferred from KiCad ERC classes. GPIOs are given as bidirectional, and VDD15 is given "
        ],
        "pages_sent": 141,
        "cost_usd": 0.9463,
        "at": "2026-10-22T23:10:50"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/07233dfde9eabce59aac9f2feec44738.pdf",
        "pages": 707,
        "sha256": "6d623d96ef650faf",
        "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": "fm33lc045n.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.0,
          9.0,
          1.5
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "9dea352d93177c2904afd7d7b68ea8855ce1ab691f69f8b3e13655600514b6bf",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "fm33lc045n-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.0,
          9.0,
          1.5
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "7b950ecea19f24735d46394eaf2d0d948ecc2a690b4df0e17f11b329162a6c93",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}