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Ray Set visibility: public 979148f 9h ago
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{
  "schema_version": 1,
  "type": "component",
  "slug": "n79e815at20",
  "title": "N79E815AT20",
  "brief": "Nuvoton Tech Microcontroller Units (MCUs/MPUs/SOCs), TSSOP-20. 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",
    "embedded processors & controllers",
    "n79e815at20",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "N79E815AT20",
    "manufacturer": "Nuvoton Tech",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/0ba3d4da41da3218a1dbd31a6bb40ab1.pdf",
    "parts": {
      "symbol": "n79e815at20.kicad_sym",
      "footprint": "n79e815at20.kicad_mod",
      "model_3d": "n79e815at20-hero.glb",
      "model_3d_plain": "n79e815at20-etched.glb",
      "model_3d_step": "n79e815at20-etched.step",
      "model_3d_step_plain": "n79e815at20.step",
      "lbr": "n79e815at20.lbr"
    },
    "distributor_links": {
      "lcsc": "C124045"
    },
    "distributor_check": {
      "checked_at": "2026-10-26T18:56:05Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "P0.0",
        "type": "bidirectional",
        "description": "Port 0 bit 0 I/O with alternate functions PWM3 output, KB0 keyboard input and SPICLK (SPI-1 clock)."
      },
      {
        "number": "2",
        "name": "P1.7",
        "type": "bidirectional",
        "description": "Port 1 bit 7 I/O with alternate functions PWM2 output, ICPCLK (ICP clock) and MOSI (SPI-1); 38 mA LED drive capability."
      },
      {
        "number": "3",
        "name": "P1.6",
        "type": "bidirectional",
        "description": "Port 1 bit 6 I/O with alternate functions PWM1 output, ICPDAT (ICP data) and MISO (SPI-1); 38 mA LED drive capability."
      },
      {
        "number": "4",
        "name": "/RST",
        "type": "input",
        "description": "Active-low Schmitt-trigger reset input with about 200 kohm internal pull-up; must not float, datasheet requires a 100 ohm resistor and 10 uF capacitor to ground."
      },
      {
        "number": "5",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "6",
        "name": "P3.1",
        "type": "bidirectional",
        "description": "Port 3 bit 1 I/O, alternate function XTAL1 external crystal/clock input."
      },
      {
        "number": "7",
        "name": "P3.0",
        "type": "bidirectional",
        "description": "Port 3 bit 0 I/O, alternate functions XTAL2 (crystal amplifier output) and CLKOUT (internal RC oscillator/4 output)."
      },
      {
        "number": "8",
        "name": "P1.4",
        "type": "bidirectional",
        "description": "Port 1 bit 4 I/O with alternate functions /INT1 external interrupt, STADC ADC start trigger and /SS (SPI-1 slave select); 38 mA LED drive capability."
      },
      {
        "number": "9",
        "name": "P1.3",
        "type": "bidirectional",
        "description": "Port 1 bit 3, always open-drain, with alternate functions /INT0 external interrupt and SDA (I2C data)."
      },
      {
        "number": "10",
        "name": "P1.2",
        "type": "bidirectional",
        "description": "Port 1 bit 2, always open-drain, with alternate functions T0 timer 0 external input, SCL (I2C clock) and IC0 capture input."
      },
      {
        "number": "11",
        "name": "P1.1",
        "type": "bidirectional",
        "description": "Port 1 bit 1 I/O with alternate function RXD (UART receive); 38 mA LED drive capability."
      },
      {
        "number": "12",
        "name": "P1.0",
        "type": "bidirectional",
        "description": "Port 1 bit 0 I/O with alternate function TXD (UART transmit); 38 mA LED drive capability."
      },
      {
        "number": "13",
        "name": "P0.7",
        "type": "bidirectional",
        "description": "Port 0 bit 7 I/O with alternate functions T1 timer 1 external input, ADC6 analog input, KB7 keyboard input and IC1 capture input."
      },
      {
        "number": "14",
        "name": "P0.6",
        "type": "bidirectional",
        "description": "Port 0 bit 6 I/O with alternate functions ADC5 analog input and KB6 keyboard input."
      },
      {
        "number": "15",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply voltage input; operating range 2.4 V to 5.5 V depending on clock source and frequency."
      },
      {
        "number": "16",
        "name": "P0.5",
        "type": "bidirectional",
        "description": "Port 0 bit 5 I/O with alternate functions ADC4 analog input and KB5 keyboard input."
      },
      {
        "number": "17",
        "name": "P0.4",
        "type": "bidirectional",
        "description": "Port 0 bit 4 I/O with alternate functions ADC3 analog input and KB4 keyboard input."
      },
      {
        "number": "18",
        "name": "P0.3",
        "type": "bidirectional",
        "description": "Port 0 bit 3 I/O with alternate functions ADC2 analog input and KB3 keyboard input."
      },
      {
        "number": "19",
        "name": "P0.2",
        "type": "bidirectional",
        "description": "Port 0 bit 2 I/O with alternate functions BRAKE (PWM brake input), ADC1 analog input and KB2 keyboard input."
      },
      {
        "number": "20",
        "name": "P0.1",
        "type": "bidirectional",
        "description": "Port 0 bit 1 I/O with alternate functions PWM0 output, ADC0 analog input and KB1 keyboard input."
      }
    ],
    "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 5-1 lists SOP20 and TSSOP20 in one shared column, so the numbers apply to both packages. The p; The text gives no pin type for the crystal pins P3.0 and P3.1, so they are listed as bidirectional I"
        ],
        "pages_sent": 99,
        "cost_usd": 0.6379,
        "at": "2026-10-26T18:55:51"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/0ba3d4da41da3218a1dbd31a6bb40ab1.pdf",
        "pages": 179,
        "sha256": "d6a503318845ce88",
        "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"
    },
    "models_3d": [
      {
        "file": "n79e815at20.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": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "n79e815at20-etched.step",
        "role": "eda",
        "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": "b35c7bb8a01a69c677c421e24762ba8b451f3f1b8eb1b9b0cf9464fac10094a2",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Nuvoton Tech",
      "Package": "TSSOP-20",
      "Category": "Embedded Processors & Controllers",
      "Pins": "20"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "d6a503318845ce88f13257d12d0edbbbb565d9eb9eee6ae576b73f54da9f11b7",
      "rows": [
        {
          "name": "Operating temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "C",
          "min": -40,
          "typ": null,
          "max": 85,
          "conditions": "",
          "source_page": 166,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 166,
          "source": "datasheet"
        },
        {
          "name": "VDD to VSS voltage",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 6.5,
          "conditions": "",
          "source_page": 166,
          "source": "datasheet"
        },
        {
          "name": "Operating voltage",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 3,
          "typ": null,
          "max": 5.5,
          "conditions": "Fosc = 4 MHz ~ 24 MHz",
          "source_page": 166,
          "source": "datasheet"
        },
        {
          "name": "Operating voltage",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.4,
          "typ": null,
          "max": 5.5,
          "conditions": "Fosc = 4 MHz ~12 MHz",
          "source_page": 166,
          "source": "datasheet"
        },
        {
          "name": "Input low voltage (TTL)",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "2.4< VDD< 5.5V; max printed 0.2VDD-0.1",
          "source_page": 166,
          "source": "datasheet"
        },
        {
          "name": "Input low voltage (Schmitt)",
          "symbol": "VIL1",
          "kind": "electrical",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "2.4< VDD< 5.5V; max printed 0.3VDD",
          "source_page": 166,
          "source": "datasheet"
        },
        {
          "name": "Input low voltage (/RST, XTAL1)",
          "symbol": "VIL2",
          "kind": "electrical",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": null,
          "conditions": "2.4< VDD< 5.5V; max printed 0.2VDD-0.1",
          "source_page": 166,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage P0,P2",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.45,
          "conditions": "VDD=4.5V, IOL=20 mA",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage P10,P11,P14,P16,P17",
          "symbol": "VOL1",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.45,
          "conditions": "VDD=4.5V, IOL=38 mA",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Output high voltage quasi-bidirectional",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2.4,
          "typ": null,
          "max": null,
          "conditions": "VDD=4.5V, IOH=-380 μA",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Output high voltage quasi-bidirectional",
          "symbol": "VOH",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "VDD=2.4V, IOH=-48 μA",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Output high voltage push-pull",
          "symbol": "VOH1",
          "kind": "electrical",
          "unit": "V",
          "min": 2.4,
          "typ": null,
          "max": null,
          "conditions": "VDD=4.5V, IOH=-28.0 mA",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Output high voltage push-pull",
          "symbol": "VOH1",
          "kind": "electrical",
          "unit": "V",
          "min": 2,
          "typ": null,
          "max": null,
          "conditions": "VDD=2.4V, IOH=-3.5 mA",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current",
          "symbol": "ILI",
          "kind": "electrical",
          "unit": "μA",
          "min": -10,
          "typ": null,
          "max": 10,
          "conditions": "open-drain or input mode, 0 < VIN < VDD",
          "source_page": 167,
          "source": "datasheet"
        },
        {
          "name": "Power-down current",
          "symbol": "IPD",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": 5,
          "max": 30,
          "conditions": "Power-down mode",
          "source_page": 168,
          "source": "datasheet"
        },
        {
          "name": "Power-down current, BOD on",
          "symbol": "IPD",
          "kind": "electrical",
          "unit": "μA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "Power-down mode (BOD module on)",
          "source_page": 168,
          "source": "datasheet"
        },
        {
          "name": "Reset pin internal pull-up resistor",
          "symbol": "RRST",
          "kind": "electrical",
          "unit": "KΩ",
          "min": 100,
          "typ": null,
          "max": 250,
          "conditions": "2.4< VDD< 5.5V",
          "source_page": 168,
          "source": "datasheet"
        },
        {
          "name": "BOD38 detection voltage",
          "symbol": "VBOD38",
          "kind": "electrical",
          "unit": "V",
          "min": 3.5,
          "typ": 3.8,
          "max": 4.1,
          "conditions": "Temperature=25℃",
          "source_page": 168,
          "source": "datasheet"
        },
        {
          "name": "BOD38 detection voltage",
          "symbol": "VBOD38",
          "kind": "electrical",
          "unit": "V",
          "min": 3.5,
          "typ": 3.8,
          "max": 4.9,
          "conditions": "Temperature=85℃",
          "source_page": 168,
          "source": "datasheet"
        },
        {
          "name": "BOD38 detection voltage",
          "symbol": "VBOD38",
          "kind": "electrical",
          "unit": "V",
          "min": 3,
          "typ": 3.8,
          "max": 4.1,
          "conditions": "Temperature=-40℃",
          "source_page": 168,
          "source": "datasheet"
        },
        {
          "name": "BOD27 detection voltage",
          "symbol": "VBOD27",
          "kind": "electrical",
          "unit": "V",
          "min": 2.5,
          "typ": 2.7,
          "max": 2.9,
          "conditions": "Temperature=25℃",
          "source_page": 168,
          "source": "datasheet"
        },
        {
          "name": "BOD27 detection voltage",
          "symbol": "VBOD27",
          "kind": "electrical",
          "unit": "V",
          "min": 2.5,
          "typ": 2.7,
          "max": 3.1,
          "conditions": "Temperature=85℃",
          "source_page": 168,
          "source": "datasheet"
        },
        {
          "name": "BOD27 detection voltage",
          "symbol": "VBOD27",
          "kind": "electrical",
          "unit": "V",
          "min": 2.4,
          "typ": 2.7,
          "max": 2.9,
          "conditions": "Temperature=-40℃",
          "source_page": 168,
          "source": "datasheet"
        },
        {
          "name": "ADC operating voltage",
          "symbol": "VDD",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "10-bit SAR-ADC",
          "source_page": 169,
          "source": "datasheet"
        },
        {
          "name": "ADC integral nonlinearity",
          "symbol": "INL",
          "kind": "electrical",
          "unit": "LSB",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 169,
          "source": "datasheet"
        },
        {
          "name": "ADC differential nonlinearity",
          "symbol": "DNL",
          "kind": "electrical",
          "unit": "LSB",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 169,
          "source": "datasheet"
        },
        {
          "name": "ADC gain error",
          "symbol": "Ge",
          "kind": "electrical",
          "unit": "LSB",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "",
          "source_page": 169,
          "source": "datasheet"
        },
        {
          "name": "ADC offset error",
          "symbol": "Ofe",
          "kind": "electrical",
          "unit": "LSB",
          "min": -4,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 169,
          "source": "datasheet"
        },
        {
          "name": "ADC absolute error",
          "symbol": "",
          "kind": "electrical",
          "unit": "LSB",
          "min": -4,
          "typ": null,
          "max": 4,
          "conditions": "",
          "source_page": 169,
          "source": "datasheet"
        },
        {
          "name": "Bandgap reference voltage",
          "symbol": "VBG",
          "kind": "electrical",
          "unit": "V",
          "min": 1,
          "typ": 1.3,
          "max": 1.6,
          "conditions": "",
          "source_page": 169,
          "source": "datasheet"
        },
        {
          "name": "External crystal clock input frequency",
          "symbol": "1/tCLCL",
          "kind": "timing",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 24,
          "conditions": "",
          "source_page": 170,
          "source": "datasheet"
        },
        {
          "name": "Clock high time",
          "symbol": "tCHCX",
          "kind": "timing",
          "unit": "Ns",
          "min": 20.8,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 170,
          "source": "datasheet"
        },
        {
          "name": "Clock low time",
          "symbol": "tCLCX",
          "kind": "timing",
          "unit": "Ns",
          "min": 20.8,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 170,
          "source": "datasheet"
        },
        {
          "name": "Clock rise time",
          "symbol": "tCLCH",
          "kind": "timing",
          "unit": "Ns",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 170,
          "source": "datasheet"
        },
        {
          "name": "Clock fall time",
          "symbol": "tCHCL",
          "kind": "timing",
          "unit": "Ns",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "",
          "source_page": 170,
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