FM33LG048A

{
  "schema_version": 1,
  "type": "component",
  "slug": "fm33lg048a",
  "title": "FM33LG048A",
  "brief": "FUDAN MICRO Microcontroller Units (MCUs/MPUs/SOCs), LQFP-80(12X12). 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",
    "single chip microcomputer-microcontroller",
    "fm33lg048a",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "FM33LG048A",
    "manufacturer": "FUDAN MICRO",
    "package": "LQFP-80(12X12)",
    "pin_count": 80,
    "category": "Single Chip Microcomputer/Microcontroller",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/0ce8a05f5eb4a0fbbfbcab1cb5a68471.pdf",
    "parts": {
      "symbol": "fm33lg048a.kicad_sym",
      "footprint": "fm33lg048a.kicad_mod",
      "model_3d": "fm33lg048a-hero.glb",
      "model_3d_plain": "fm33lg048a-etched.glb",
      "model_3d_step": "fm33lg048a-etched.step",
      "model_3d_step_plain": "fm33lg048a.step",
      "lbr": "fm33lg048a.lbr"
    },
    "distributor_links": {
      "lcsc": "C5438462"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:55:59Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 777 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PD10",
        "type": "bidirectional",
        "description": "GPIO with CAN_RX (CAN receive) and ADC_IN18 (ADC input channel) functions."
      },
      {
        "number": "2",
        "name": "PE9",
        "type": "bidirectional",
        "description": "GPIO with CAN_TX (CAN transmit) and ADC_IN19 (ADC input channel) functions."
      },
      {
        "number": "3",
        "name": "PA13",
        "type": "bidirectional",
        "description": "GPIO with UART0_RX, LPUART0_RX (low-power UART receive) and ADC_IN4 functions."
      },
      {
        "number": "4",
        "name": "PA14",
        "type": "bidirectional",
        "description": "GPIO with UART0_TX, LPUART0_TX (low-power UART transmit) and ADC_IN11 functions."
      },
      {
        "number": "5",
        "name": "PA15",
        "type": "bidirectional",
        "description": "GPIO with WKUP0 (external wake-up), SVS (external supply detection) and COMP3_OUT (comparator output) functions."
      },
      {
        "number": "6",
        "name": "PA0",
        "type": "bidirectional",
        "description": "GPIO with COM0 (LCD drive), UART4_RX, ADC_IN5 and LUT3_OUT (PGL output) functions."
      },
      {
        "number": "7",
        "name": "PA1",
        "type": "bidirectional",
        "description": "GPIO with COM1 (LCD drive), UART4_TX, ADC_IN12 and LUT2_OUT (PGL output) functions."
      },
      {
        "number": "8",
        "name": "PA2",
        "type": "bidirectional",
        "description": "GPIO with COM2 (LCD drive), UART0_RX and LPUART0_RX functions."
      },
      {
        "number": "9",
        "name": "PA3",
        "type": "bidirectional",
        "description": "GPIO with COM3 (LCD drive), UART0_TX and LPUART0_TX functions."
      },
      {
        "number": "10",
        "name": "PA4",
        "type": "bidirectional",
        "description": "GPIO with COM4/SEG28 (LCD drive), GPT1_CH3 timer channel and COMP2_INN1 comparator input functions."
      },
      {
        "number": "11",
        "name": "PA5",
        "type": "bidirectional",
        "description": "GPIO with COM5/SEG29 (LCD drive), GPT1_CH4 timer channel and COMP2_INN2 comparator input functions."
      },
      {
        "number": "12",
        "name": "PA6",
        "type": "bidirectional",
        "description": "GPIO with COM6/SEG30 (LCD drive), OPA1_INN2 (OPA input) and CAN_RX functions."
      },
      {
        "number": "13",
        "name": "PA7",
        "type": "bidirectional",
        "description": "GPIO with COM7/SEG31 (LCD drive), OPA1_INP2 (OPA input) and CAN_TX functions."
      },
      {
        "number": "14",
        "name": "PA8",
        "type": "bidirectional",
        "description": "GPIO with SEG0 (LCD drive), LPT32_CH1, SPI1_SSN and COMP2_INP1 comparator input functions."
      },
      {
        "number": "15",
        "name": "PA9",
        "type": "bidirectional",
        "description": "GPIO with SEG1 (LCD drive), LPT32_CH2, SPI1_SCK and COMP2_INP2 comparator input functions."
      },
      {
        "number": "16",
        "name": "PA10",
        "type": "bidirectional",
        "description": "GPIO with WKUP1 (external wake-up), SEG2 (LCD drive), LPT32_ETR (external trigger input) and COMP1_INN1 comparator input functions."
      },
      {
        "number": "17",
        "name": "PA11",
        "type": "bidirectional",
        "description": "GPIO with SEG32 (LCD drive), SCL (I2C clock) and LPUART2_RX functions."
      },
      {
        "number": "18",
        "name": "PA12",
        "type": "bidirectional",
        "description": "GPIO with SEG33 (LCD drive), SDA (I2C data) and LPUART2_TX functions."
      },
      {
        "number": "19",
        "name": "PD9",
        "type": "bidirectional",
        "description": "GPIO with WKUP8 (external wake-up) function."
      },
      {
        "number": "20",
        "name": "PE8",
        "type": "bidirectional",
        "description": "General-purpose I/O."
      },
      {
        "number": "21",
        "name": "PB0",
        "type": "bidirectional",
        "description": "GPIO with SEG34 (LCD drive), UART3_RX, SPI1_MISO and OPA1_OUT3 functions."
      },
      {
        "number": "22",
        "name": "PB1",
        "type": "bidirectional",
        "description": "GPIO (description header printed as external wake-up) with SEG35 (LCD drive), UART3_TX, SPI1_MOSI and OPA1_OUT4 functions."
      },
      {
        "number": "23",
        "name": "PB2",
        "type": "bidirectional",
        "description": "GPIO with WKUP2, VCIN1 (LCD capacitor pin), UART4_RX and ATIM_CH1N functions."
      },
      {
        "number": "24",
        "name": "PB3",
        "type": "bidirectional",
        "description": "GPIO with VCIN2 (LCD capacitor pin), UART4_TX and ATIM_CH2N functions."
      },
      {
        "number": "25",
        "name": "PB4",
        "type": "bidirectional",
        "description": "GPIO with SEG3 (LCD drive), ATIM_CH1, LPUART2_RX and COMP3_INN1 functions."
      },
      {
        "number": "26",
        "name": "PB5",
        "type": "bidirectional",
        "description": "GPIO with SEG4 (LCD drive), ATIM_CH2, LPUART2_TX and COMP3_INN2 functions."
      },
      {
        "number": "27",
        "name": "PB6",
        "type": "bidirectional",
        "description": "GPIO with SEG5 (LCD drive), ATIM_CH3 and SPI2_SSN functions."
      },
      {
        "number": "28",
        "name": "PB7",
        "type": "bidirectional",
        "description": "GPIO with SEG6 (LCD drive), ATIM_CH4, SPI2_SCK and ANATST (factory test channel) functions."
      },
      {
        "number": "29",
        "name": "PB8",
        "type": "bidirectional",
        "description": "GPIO with SEG7 (LCD drive), SPI0_SSN, ATIM_CH3N and COMP1_INP1 functions."
      },
      {
        "number": "30",
        "name": "PB9",
        "type": "bidirectional",
        "description": "GPIO with SEG8 (LCD drive), COMP1_INP2, SPI0_SCK and GPT0_ETR functions."
      },
      {
        "number": "31",
        "name": "PB10",
        "type": "bidirectional",
        "description": "GPIO with SEG9 (LCD drive), OPA1_INN1, SPI0_MISO and GPT0_CH1 functions."
      },
      {
        "number": "32",
        "name": "PB11",
        "type": "bidirectional",
        "description": "GPIO with SEG10 (LCD drive), OPA1_INP1, SPI MOSI and GPT0_CH2 functions."
      },
      {
        "number": "33",
        "name": "PB12",
        "type": "bidirectional",
        "description": "GPIO with WKUP3, FOUT1 (clock output), ATIM_ETR and OPA1_OUT1 functions."
      },
      {
        "number": "34",
        "name": "PB13",
        "type": "bidirectional",
        "description": "GPIO with SEG11 (LCD drive), UART1_RX and LPUART1_RX functions."
      },
      {
        "number": "35",
        "name": "PB14",
        "type": "bidirectional",
        "description": "GPIO with SEG12 (LCD drive), UART1_TX and LPUART1_TX functions."
      },
      {
        "number": "36",
        "name": "PE0",
        "type": "bidirectional",
        "description": "GPIO with SEG36 (LCD drive) and SPI0_SSN functions."
      },
      {
        "number": "37",
        "name": "PE1",
        "type": "bidirectional",
        "description": "GPIO with SEG37 (LCD drive) and SPI0_SCK functions."
      },
      {
        "number": "38",
        "name": "PE2",
        "type": "bidirectional",
        "description": "GPIO with SEG38 (LCD drive) and SPI0_MISO functions."
      },
      {
        "number": "39",
        "name": "PE3",
        "type": "bidirectional",
        "description": "GPIO with SEG39 (LCD drive) and SPI0_MOSI functions."
      },
      {
        "number": "40",
        "name": "PC13",
        "type": "bidirectional",
        "description": "GPIO with SEG40 (LCD drive), U7816CLK (7816 clock) and LPT16_CH1 functions."
      },
      {
        "number": "41",
        "name": "PC14",
        "type": "bidirectional",
        "description": "GPIO with SEG41 (LCD drive), U7816IO (7816 data, 100K pull-up) and LPT16_CH2 functions."
      },
      {
        "number": "42",
        "name": "PC15",
        "type": "bidirectional",
        "description": "GPIO with SEG42 (LCD drive), LPT32_CH3 and CAN_RX functions."
      },
      {
        "number": "43",
        "name": "PE5",
        "type": "bidirectional",
        "description": "GPIO with SEG43 (LCD drive), LPT32_CH4 and CAN_TX functions."
      },
      {
        "number": "44",
        "name": "PB15",
        "type": "bidirectional",
        "description": "GPIO with VDISP0 (off-chip LCD capacitor), SCL (I2C clock) and SPI2_MISO functions."
      },
      {
        "number": "45",
        "name": "PD12",
        "type": "bidirectional",
        "description": "GPIO with VDISP1 (off-chip LCD capacitor), SDA (I2C data) and SPI2_MOSI functions."
      },
      {
        "number": "46",
        "name": "PC0",
        "type": "bidirectional",
        "description": "GPIO with VDISP2 (off-chip LCD capacitor), COMP3_INP1, LUT0_OUT and GPT1_CH1 functions."
      },
      {
        "number": "47",
        "name": "PC1",
        "type": "bidirectional",
        "description": "GPIO with VDISP3 (off-chip LCD capacitor), COMP3_INP2, LUT1_OUT and GPT1_CH2 functions."
      },
      {
        "number": "48",
        "name": "PC2",
        "type": "bidirectional",
        "description": "GPIO with XTHIN (high-frequency crystal input), UART1_RX and LPUART1_RX functions."
      },
      {
        "number": "49",
        "name": "PC3",
        "type": "bidirectional",
        "description": "GPIO with XTHOUT (high-frequency crystal output), UART1_TX and LPUART1_TX functions."
      },
      {
        "number": "50",
        "name": "PC4",
        "type": "bidirectional",
        "description": "GPIO with SEG13 (LCD drive), OPA1_OUT2, COMP1_OUT and UART5_RX functions."
      },
      {
        "number": "51",
        "name": "PC5",
        "type": "bidirectional",
        "description": "GPIO with SEG14 (LCD drive), DAC_OUT, COMP2_OUT and UART5_TX functions."
      },
      {
        "number": "52",
        "name": "PC6",
        "type": "bidirectional",
        "description": "GPIO with WKUP4, SEG15 (LCD drive), GPT1_ETR and COMP1_INN2 functions."
      },
      {
        "number": "53",
        "name": "PC7",
        "type": "bidirectional",
        "description": "GPIO with SEG16 (LCD drive), SPI2_SSN and ADC_IN6 functions."
      },
      {
        "number": "54",
        "name": "PC8",
        "type": "bidirectional",
        "description": "GPIO with SEG17 (LCD drive), SPI2_SCK and ADC_IN13 functions."
      },
      {
        "number": "55",
        "name": "PC9",
        "type": "bidirectional",
        "description": "GPIO with SEG18 (LCD drive), SPI2_MISO and ADC_IN14 functions."
      },
      {
        "number": "56",
        "name": "PC10",
        "type": "bidirectional",
        "description": "GPIO with WKUP5, SEG19 (LCD drive), SPI2_MOSI and ADC_IN15 functions."
      },
      {
        "number": "57",
        "name": "PC11",
        "type": "bidirectional",
        "description": "GPIO with SEG20 (LCD drive), U7816CLK, GPT0_CH3 and ADC_IN16 functions."
      },
      {
        "number": "58",
        "name": "PC12",
        "type": "bidirectional",
        "description": "GPIO with SEG21 (LCD drive), U7816IO (10K pull-up), GPT0_CH4 and ADC_IN17 functions."
      },
      {
        "number": "59",
        "name": "PH15",
        "type": "bidirectional",
        "description": "GPIO in the VAO backup domain with RTCOUT (RTCB output) and Tamper (tamper detection input) functions; 5V tolerant with source current not above 1mA."
      },
      {
        "number": "60",
        "name": "XT32KO",
        "type": "output",
        "description": "32768Hz crystal oscillator output."
      },
      {
        "number": "61",
        "name": "XT32KI",
        "type": "input",
        "description": "32768Hz crystal oscillator input."
      },
      {
        "number": "62",
        "name": "VDD15",
        "type": "power_out",
        "description": "LDO output (1.5V core supply) with a 100nF capacitor to ground."
      },
      {
        "number": "63",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground (VSS/VSSA)."
      },
      {
        "number": "64",
        "name": "VDD",
        "type": "power_in",
        "description": "Main power supply (VDD/VDDA), typical operating range 1.65 to 5.5V."
      },
      {
        "number": "65",
        "name": "VREFN",
        "type": "power_in",
        "description": "Reference ground."
      },
      {
        "number": "66",
        "name": "VREFP",
        "type": "bidirectional",
        "description": "Reference voltage pin for ADC/DAC, external input of 1.6V to VDDA or internal VREFP_VREG output with 1uF capacitor."
      },
      {
        "number": "67",
        "name": "VBAT",
        "type": "power_in",
        "description": "Backup supply, 1.5 to 4.2V with power switching or shorted to VDD (up to 5.5V) if unused."
      },
      {
        "number": "68",
        "name": "PE6",
        "type": "bidirectional",
        "description": "GPIO with WKUP9 (wake-up) function."
      },
      {
        "number": "69",
        "name": "PE7",
        "type": "bidirectional",
        "description": "GPIO with COMP3_OUT (comparator output) function."
      },
      {
        "number": "70",
        "name": "PD11",
        "type": "bidirectional",
        "description": "GPIO with WKUP6, FOUT0 (clock output), ATIM_BRK1 (brake input) and ADC_IN0 functions."
      },
      {
        "number": "71",
        "name": "PD0",
        "type": "bidirectional",
        "description": "GPIO with SEG22 (LCD drive), UART5_RX, GPT2_CH1 and ADC_IN7 functions."
      },
      {
        "number": "72",
        "name": "PD1",
        "type": "bidirectional",
        "description": "GPIO with SEG23 (LCD drive), UART5_TX, GPT2_CH2 and ADC_IN1 functions."
      },
      {
        "number": "73",
        "name": "PD2",
        "type": "bidirectional",
        "description": "GPIO with SEG24 (LCD drive), SPI1_SSN, GPT2_CH3 and ADC_IN8 functions."
      },
      {
        "number": "74",
        "name": "PD3",
        "type": "bidirectional",
        "description": "GPIO with SEG25 (LCD drive), SPI1_SCK, GPT2_CH4 and ADC_IN2 functions."
      },
      {
        "number": "75",
        "name": "PD4",
        "type": "bidirectional",
        "description": "GPIO with SEG26 (LCD drive), SPI1_MISO, GPT2_ETR and ADC_IN9 functions."
      },
      {
        "number": "76",
        "name": "PD5",
        "type": "bidirectional",
        "description": "GPIO with SEG27 (LCD drive), SPI1_MOSI, LPT16_ETR and ADC_IN3 functions."
      },
      {
        "number": "77",
        "name": "PD6",
        "type": "bidirectional",
        "description": "GPIO with WKUP7, ANATST (analog test channel), ATIM_BRK2 and ADC_IN10 functions."
      },
      {
        "number": "78",
        "name": "PD7",
        "type": "bidirectional",
        "description": "GPIO with UART3_RX and SWCLK (SWD clock) functions."
      },
      {
        "number": "79",
        "name": "PD8",
        "type": "bidirectional",
        "description": "GPIO with UART3_TX and SWIO (SWD data) functions."
      },
      {
        "number": "80",
        "name": "NRST",
        "type": "input",
        "description": "Reset pin."
      }
    ],
    "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 SPI1_MOSI for PB11 while the pin diagram shows SPI0_MOSI; the table text was reprodu; PB1 description header reads 'external wake-up pin' in the table, apparently a typo; treated as GPIO; VREFP can be an external reference input or an internal regulator output, so the ERC type is ambiguo"
        ],
        "pages_sent": 97,
        "cost_usd": 0.8191,
        "at": "2026-10-22T22:55:29"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/0ce8a05f5eb4a0fbbfbcab1cb5a68471.pdf",
        "pages": 840,
        "sha256": "6af2d099af5b0f40",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 80,
        "described": 80,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "fm33lg048a.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          14,
          14,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f782bdbc6327d920be33e2b9906695d7c3690117933775c3f145eac71f2013ac",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "fm33lg048a-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          14,
          14,
          1.5
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "30ee1268a760cd7af7a80ef741dab398b567b6360c85687019f14447e8ffcd7b",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "FUDAN MICRO",
      "Package": "LQFP-80(12X12)",
      "Category": "Single Chip Microcomputer/Microcontroller",
      "Pins": "80"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "6af2d099af5b0f40fba08b422b97471b703d8b9959572b17fa4f0b0d95594e5c",
      "rows": [
        {
          "name": "Supply voltage (VDD, VDDA) relative to VSS",
          "symbol": "VDD-VSS",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 61,
          "source": "datasheet"
        },
        {
          "name": "Pin voltage",
          "symbol": "VPIN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6.5,
          "conditions": "VSS-0.3 to 6.5",
          "source_page": 61,
          "source": "datasheet"
        },
        {
          "name": "ADC reference voltage",
          "symbol": "VREFP-VREFN",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 61,
          "source": "datasheet"
        },
        {
          "name": "Voltage difference between all ground pins",
          "symbol": "|ΔVSS|",
          "kind": "absolute_maximum",
          "unit": "mV",
          "min": null,
          "typ": null,
          "max": 50,
          "conditions": "",
          "source_page": 61,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -40,
          "typ": null,
          "max": 105,
          "conditions": "AEC-Q100 grade2",
          "source_page": 61,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "℃",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 61,
          "source": "datasheet"
        },
        {
          "name": "ESD HBM (PC5/DAC_OUT)",
          "symbol": "HBM",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -2000,
          "typ": null,
          "max": 2000,
          "conditions": "TA=25℃, JEDEC JS-001",
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