NUC131SD2AE

{
  "slug": "nuc131sd2ae",
  "version": "0.1.0",
  "type": "component",
  "description": "Nuvoton Tech Microcontrollers (MCU/MPU/SOC), LQFP-64(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "nuc131sd2ae",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "nuc131sd2ae.kicad_sym",
    "nuc131sd2ae.kicad_mod",
    "nuc131sd2ae.glb",
    "nuc131sd2ae.step",
    "nuc131sd2ae.lbr",
    "docs/hero.png",
    "docs/nuc131sd2ae-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "nuc131sd2ae-hero.glb",
    "nuc131sd2ae-hero.overlay.json",
    "nuc131sd2ae-etched.glb"
  ],
  "component": {
    "mpn": "NUC131SD2AE",
    "manufacturer": "Nuvoton Tech",
    "package": "LQFP-64(7x7)",
    "pin_count": 64,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590910714548592640",
    "parts": {
      "symbol": "nuc131sd2ae.kicad_sym",
      "footprint": "nuc131sd2ae.kicad_mod",
      "model_3d": "nuc131sd2ae-hero.glb",
      "model_3d_plain": "nuc131sd2ae-etched.glb",
      "model_3d_step": "nuc131sd2ae-etched.step",
      "model_3d_step_plain": "nuc131sd2ae.step",
      "lbr": "nuc131sd2ae.lbr"
    },
    "distributor_links": {
      "lcsc": "C6943122"
    },
    "distributor_check": {
      "checked_at": "2026-10-18T22:04:04Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PB.14",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin, also external interrupt 0 input (INT0)."
      },
      {
        "number": "2",
        "name": "PB.13",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin."
      },
      {
        "number": "3",
        "name": "PB.12",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are CLKO frequency divider clock output and BPWM1_CH3 output/capture input."
      },
      {
        "number": "4",
        "name": "PF.5",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are I2C0_SCL clock and PWM1_CH5 output/capture input."
      },
      {
        "number": "5",
        "name": "PF.4",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are I2C0_SDA data and PWM1_CH4 output/capture input."
      },
      {
        "number": "6",
        "name": "PA.11",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are I2C1_SCL clock and PWM1_CH3 output/capture input."
      },
      {
        "number": "7",
        "name": "PA.10",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are I2C1_SDA data and PWM1_CH2 output/capture input."
      },
      {
        "number": "8",
        "name": "PA.9",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are I2C0_SCL clock and UART1_nCTS clear-to-send input."
      },
      {
        "number": "9",
        "name": "PA.8",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are I2C0_SDA data and UART1_nRTS request-to-send output."
      },
      {
        "number": "10",
        "name": "PB.4",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is UART1_RXD data receiver input."
      },
      {
        "number": "11",
        "name": "PB.5",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is UART1_TXD data transmitter output."
      },
      {
        "number": "12",
        "name": "PB.6",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is UART1_nRTS request-to-send output."
      },
      {
        "number": "13",
        "name": "PB.7",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is UART1_nCTS clear-to-send input."
      },
      {
        "number": "14",
        "name": "LDO_CAP",
        "type": "power_out",
        "description": "LDO output pin for the internal 1.8 V LDO shown in the block diagram."
      },
      {
        "number": "15",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply for I/O ports and LDO source for internal PLL and digital circuit."
      },
      {
        "number": "16",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin for digital circuit."
      },
      {
        "number": "17",
        "name": "PB.0",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is UART0_RXD data receiver input."
      },
      {
        "number": "18",
        "name": "PB.1",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is UART0_TXD data transmitter output."
      },
      {
        "number": "19",
        "name": "PB.2",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are UART0_nRTS output, TM2_EXT capture input, TM2 toggle output and PWM1_BRAKE1 brake input."
      },
      {
        "number": "20",
        "name": "PB.3",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are UART0_nCTS input, TM3_EXT capture input, TM3 toggle output and PWM1_BRAKE0 brake input."
      },
      {
        "number": "21",
        "name": "PD.6",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are CAN0_RXD receiver input and BPWM1_CH1 output/capture input."
      },
      {
        "number": "22",
        "name": "PD.7",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are CAN0_TXD transmitter output and BPWM1_CH0 output/capture input."
      },
      {
        "number": "23",
        "name": "PD.14",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are UART2_RXD receiver input and BPWM0_CH5 output/capture input."
      },
      {
        "number": "24",
        "name": "PD.15",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are UART2_TXD transmitter output and BPWM0_CH4 input/capture input."
      },
      {
        "number": "25",
        "name": "PC.3",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are SPI0_MOSI0 master-out/slave-in and BPWM0_CH3 output/capture."
      },
      {
        "number": "26",
        "name": "PC.2",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are SPI0_MISO0 master-in/slave-out and BPWM0_CH2 input/capture."
      },
      {
        "number": "27",
        "name": "PC.1",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are SPI0_CLK serial clock and BPWM0_CH1 input/capture."
      },
      {
        "number": "28",
        "name": "PC.0",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are SPI0_SS0 slave select and BPWM0_CH0 input/capture."
      },
      {
        "number": "29",
        "name": "PE.5",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are PWM0_CH5 output/capture, TM1_EXT capture input and TM1 toggle output."
      },
      {
        "number": "30",
        "name": "PB.11",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are TM3 event counter input/toggle output and PWM0_CH4 output/capture."
      },
      {
        "number": "31",
        "name": "PB.10",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is TM2 event counter input/toggle output."
      },
      {
        "number": "32",
        "name": "PB.9",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is TM1 event counter input/toggle output."
      },
      {
        "number": "33",
        "name": "PC.11",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is PWM1_BRAKE1 brake input."
      },
      {
        "number": "34",
        "name": "PC.10",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is PWM1_BRAKE0 brake input."
      },
      {
        "number": "35",
        "name": "PC.9",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is PWM0_BRAKE1 brake input."
      },
      {
        "number": "36",
        "name": "PC.8",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is PWM0_BRAKE0 brake input."
      },
      {
        "number": "37",
        "name": "PA.15",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is PWM0_CH3 output/capture input."
      },
      {
        "number": "38",
        "name": "PA.14",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is PWM0_CH2 output/capture input."
      },
      {
        "number": "39",
        "name": "PA.13",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are PWM0_CH1 output/capture input and UART5_TXD transmitter output."
      },
      {
        "number": "40",
        "name": "PA.12",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are PWM0_CH0 output/capture input and UART5_RXD receiver input."
      },
      {
        "number": "41",
        "name": "PF.7",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is ICE_DAT serial wire debugger data."
      },
      {
        "number": "42",
        "name": "PF.6",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is ICE_CLK serial wire debugger clock input."
      },
      {
        "number": "43",
        "name": "AVSS",
        "type": "power_in",
        "description": "Ground pin for analog circuit."
      },
      {
        "number": "44",
        "name": "PA.0",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are ADC_CH0 analog input, PWM0_CH4 output/capture, I2C1_SCL clock and UART5_TXD transmitter output."
      },
      {
        "number": "45",
        "name": "PA.1",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are ADC_CH1 analog input, PWM0_CH5 output/capture, I2C1_SDA data and UART5_RXD receiver input."
      },
      {
        "number": "46",
        "name": "PA.2",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are ADC_CH2 analog input, PWM1_CH0 output/capture and UART3_TXD transmitter output."
      },
      {
        "number": "47",
        "name": "PA.3",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are ADC_CH3 analog input, PWM1_CH1 output/capture and UART3_RXD receiver input."
      },
      {
        "number": "48",
        "name": "PA.4",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is ADC_CH4 analog input."
      },
      {
        "number": "49",
        "name": "PA.5",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are ADC_CH5 analog input and UART3_RXD receiver input."
      },
      {
        "number": "50",
        "name": "PA.6",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are ADC_CH6 analog input and UART3_TXD transmitter output."
      },
      {
        "number": "51",
        "name": "PA.7",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are ADC_CH7 analog input and VREF voltage reference input for the ADC."
      },
      {
        "number": "52",
        "name": "AVDD",
        "type": "power_in",
        "description": "Power supply for internal analog circuit."
      },
      {
        "number": "53",
        "name": "PC.7",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are UART4_RXD receiver input, I2C0_SCL clock and PWM0_BRAKE1 brake input."
      },
      {
        "number": "54",
        "name": "PC.6",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are UART4_TXD transmitter output, I2C0_SDA data and PWM0_BRAKE0 brake input."
      },
      {
        "number": "55",
        "name": "PC.15",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin."
      },
      {
        "number": "56",
        "name": "PC.14",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin."
      },
      {
        "number": "57",
        "name": "PB.15",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are INT1 external interrupt 1 input, TM0_EXT capture input, TM0 toggle output and BPWM1_CH5 output/capture."
      },
      {
        "number": "58",
        "name": "PF.0",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is XT1_OUT output for the external 4~24 MHz (high speed) crystal."
      },
      {
        "number": "59",
        "name": "PF.1",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate function is XT1_IN input for the external 4~24 MHz (high speed) crystal."
      },
      {
        "number": "60",
        "name": "nRESET",
        "type": "input",
        "description": "External reset input, active LOW with an internal pull-up; driving it low resets the chip to its initial state."
      },
      {
        "number": "61",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground pin for digital circuit."
      },
      {
        "number": "62",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply for I/O ports and LDO source for internal PLL and digital circuit."
      },
      {
        "number": "63",
        "name": "PF.8",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are CLKO frequency divider clock output and BPWM1_CH4 output/capture input."
      },
      {
        "number": "64",
        "name": "PB.8",
        "type": "bidirectional",
        "description": "General purpose digital I/O pin; alternate functions are STADC ADC external trigger input, TM0 event counter/toggle, CLKO output and BPWM1_CH2 output/capture."
      }
    ],
    "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: Only pages 1-22 of the 75-page datasheet were supplied. The electrical characteristics (absolute max; The LQFP-64 pinout is taken from the pin description table on pages 16-21 (pin numbers 1-64, each ro; Pin types are assumptions from KiCad classes. All multi-function GPIO pins are typed bidirectional, "
        ],
        "pages_sent": 16,
        "cost_usd": 0.1225,
        "at": "2026-10-18T22:02:20"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590910714548592640",
        "pages": 75,
        "sha256": "c2666ff0fac3cf48",
        "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": [
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        "file": "nuc131sd2ae.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.8,
          9.8,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "f91f2eca5f19e096f53f34ee39566d329c86d3b33cb6e5711eb08566f38cd8ed",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "nuc131sd2ae-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          9.8,
          9.8,
          1.5
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "dfe3f4912f6ce1641010266b23d95e9413421ebd2c095725b4bcf2471e7b73f6",
        "checked": "2026-10-18",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}