MS51FB9AE-T

{
  "schema_version": 1,
  "type": "component",
  "slug": "ms51fb9ae-t",
  "title": "MS51FB9AE-T",
  "brief": "Nuvoton Tech Microcontrollers (MCU/MPU/SOC), TSSOP-20. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.2.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "mcu",
    "ms51fb9ae-t"
  ],
  "component": {
    "mpn": "MS51FB9AE-T",
    "manufacturer": "Nuvoton Tech",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "MCU",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/54412e5ac7fc68c8e9741a8e1ecaf9fa.pdf",
    "parts": {
      "symbol": "ms51fb9ae-t.kicad_sym",
      "footprint": "ms51fb9ae-t.kicad_mod",
      "model_3d": "ms51fb9ae-t-etched.glb",
      "model_3d_plain": "ms51fb9ae-t.glb",
      "model_3d_step": "ms51fb9ae-t-etched.step",
      "model_3d_step_plain": "ms51fb9ae-t.step",
      "lbr": "ms51fb9ae-t.lbr"
    },
    "distributor_links": {
      "lcsc": "C465921"
    },
    "pins": [
      {
        "number": "1",
        "name": "P0.5/AIN4/T0/IC6/PWM2",
        "type": "bidirectional",
        "description": "General purpose I/O P0.5. Alternate functions: ADC channel 4 input (AIN4), Timer 0 external count input (T0), PWM Timer 2 input capture (IC6), PWM channel 2 output (PWM2)."
      },
      {
        "number": "2",
        "name": "P0.6/AIN3/TXD",
        "type": "bidirectional",
        "description": "General purpose I/O P0.6. Alternate functions: ADC channel 3 input (AIN3), UART0 transmit data (TXD)."
      },
      {
        "number": "3",
        "name": "P0.7/AIN2/RXD",
        "type": "bidirectional",
        "description": "General purpose I/O P0.7. Alternate functions: ADC channel 2 input (AIN2), UART0 receive data (RXD)."
      },
      {
        "number": "4",
        "name": "P2.0/RST",
        "type": "input",
        "description": "External active-low reset input (RST) / input-only P2.0. Asserting low resets the MCU."
      },
      {
        "number": "5",
        "name": "P3.0/AIN1/OSCIN/INT0",
        "type": "bidirectional",
        "description": "General purpose I/O P3.0. Alternate functions: ADC channel 1 input (AIN1), external oscillator/clock input (OSCIN), external interrupt 0 (INT0)."
      },
      {
        "number": "6",
        "name": "P1.7/AIN0/INT1",
        "type": "bidirectional",
        "description": "General purpose I/O P1.7. Alternate functions: ADC channel 0 input (AIN0), external interrupt 1 (INT1)."
      },
      {
        "number": "7",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference (0 V) for digital and analog supplies."
      },
      {
        "number": "8",
        "name": "P1.6/OCDDA/ICPDA/TXD_1/[SDA]",
        "type": "bidirectional",
        "description": "General purpose I/O P1.6. Alternate functions: On-Chip Debugger data (OCDDA), In-Circuit Programming data (ICPDA), UART1 TXD, and remappable I2C SDA."
      },
      {
        "number": "9",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply voltage, 2.4 V to 5.5 V."
      },
      {
        "number": "10",
        "name": "P1.5/SS/IC7/PWM5",
        "type": "bidirectional",
        "description": "General purpose I/O P1.5. Alternate functions: SPI slave select (SS), PWM Timer 2 input capture 7 (IC7), PWM channel 5 output (PWM5)."
      },
      {
        "number": "11",
        "name": "P1.4/PWM1/FB/SDA",
        "type": "bidirectional",
        "description": "General purpose I/O P1.4. Alternate functions: PWM channel 1 output (PWM1), PWM Fault-Brake input (FB), I2C SDA (open-drain)."
      },
      {
        "number": "12",
        "name": "P1.3/SCL/[STADC]",
        "type": "bidirectional",
        "description": "General purpose I/O P1.3. Alternate functions: I2C SCL (open-drain), remappable ADC start-conversion trigger (STADC)."
      },
      {
        "number": "13",
        "name": "P1.2/PWM0/IC0",
        "type": "bidirectional",
        "description": "General purpose I/O P1.2. Alternate functions: PWM channel 0 output (PWM0), PWM Timer 2 input capture 0 (IC0)."
      },
      {
        "number": "14",
        "name": "P1.1/PWM1/IC1/AIN7/CLO",
        "type": "bidirectional",
        "description": "General purpose I/O P1.1. Alternate functions: PWM channel 1 output (PWM1), input capture 1 (IC1), ADC channel 7 input (AIN7), clock output (CLO)."
      },
      {
        "number": "15",
        "name": "P1.0/PWM2/IC2/SPCLK",
        "type": "bidirectional",
        "description": "General purpose I/O P1.0. Alternate functions: PWM channel 2 output (PWM2), input capture 2 (IC2), SPI clock (SPCLK)."
      },
      {
        "number": "16",
        "name": "P0.0/PWM3/IC3/MOSI/T1",
        "type": "bidirectional",
        "description": "General purpose I/O P0.0. Alternate functions: PWM channel 3 output (PWM3), input capture 3 (IC3), SPI master-out slave-in (MOSI), Timer 1 external count input (T1)."
      },
      {
        "number": "17",
        "name": "P0.1/PWM4/IC4/MISO",
        "type": "bidirectional",
        "description": "General purpose I/O P0.1. Alternate functions: PWM channel 4 output (PWM4), input capture 4 (IC4), SPI master-in slave-out (MISO)."
      },
      {
        "number": "18",
        "name": "P0.2/ICPCK/OCDCK/RXD_1/[SCL]",
        "type": "bidirectional",
        "description": "General purpose I/O P0.2. Alternate functions: In-Circuit Programming clock (ICPCK), On-Chip Debugger clock (OCDCK), UART1 receive data (RXD_1), remappable I2C SCL."
      },
      {
        "number": "19",
        "name": "P0.3/PWM5/IC5/AIN6",
        "type": "bidirectional",
        "description": "General purpose I/O P0.3. Alternate functions: PWM channel 5 output (PWM5), input capture 5 (IC5), ADC channel 6 input (AIN6)."
      },
      {
        "number": "20",
        "name": "P0.4/AIN5/STADC/PWM3/IC3",
        "type": "bidirectional",
        "description": "General purpose I/O P0.4. Alternate functions: ADC channel 5 input (AIN5), ADC start-conversion trigger (STADC), PWM channel 3 output (PWM3), input capture 3 (IC3)."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/54412e5ac7fc68c8e9741a8e1ecaf9fa.pdf",
        "pages": 25,
        "sha256": "471cbcb0dd4795df",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "pin1": {
      "pad": "1",
      "at": [
        -2.8625,
        -2.925
      ],
      "corner": "top-left",
      "source": "silk-marker",
      "derived_from": "TSSOP-20_4.4x6.5mm_P0.65mm@sha256:b7ca3a31dd45c122",
      "mark": "drawn"
    },
    "models_3d": [
      {
        "file": "ms51fb9ae-t.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Nuvoton Tech",
      "Package": "TSSOP-20",
      "Category": "MCU",
      "Pins": "20"
    }
  },
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "ms51fb9ae-t"
  ],
  "discovery_pitch": "MS51FB9AE-T (Nuvoton Tech) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "ms51fb9ae-t.kicad_sym",
    "ms51fb9ae-t.kicad_mod",
    "ms51fb9ae-t.glb",
    "ms51fb9ae-t.step",
    "ms51fb9ae-t-etched.step",
    "ms51fb9ae-t.lbr",
    "docs/hero.png",
    "docs/ms51fb9ae-t-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "variants": [
    {
      "mpn": "MS51FB9AE-T",
      "kind": "packaging"
    },
    {
      "mpn": "MS51XB9AE",
      "kind": "unknown"
    },
    {
      "mpn": "MS51XB9BE",
      "kind": "unknown"
    },
    {
      "mpn": "MS51BA9AE",
      "kind": "unknown"
    },
    {
      "mpn": "MS51DA9AE",
      "kind": "unknown"
    }
  ],
  "updated_at": "2026-09-25T02:22:30.698Z"
}