ATTINY827-MUR

{
  "slug": "attiny827-mur",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), VQFN-24(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "single chip microcomputer-microcontroller",
    "attiny827-mur",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "attiny827-mur.kicad_sym",
    "attiny827-mur.kicad_mod",
    "attiny827-mur.glb",
    "attiny827-mur.step",
    "attiny827-mur.lbr",
    "docs/hero.png",
    "docs/attiny827-mur-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "attiny827-mur-hero.glb",
    "attiny827-mur-hero.overlay.json",
    "attiny827-mur-etched.glb"
  ],
  "component": {
    "mpn": "ATTINY827-MUR",
    "manufacturer": "Microchip Tech",
    "package": "VQFN-24(4x4)",
    "pin_count": 25,
    "category": "Single Chip Microcomputer/Microcontroller",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/3ae8065bab9cde6fd0bd760d42b9401d.pdf",
    "parts": {
      "symbol": "attiny827-mur.kicad_sym",
      "footprint": "attiny827-mur.kicad_mod",
      "model_3d": "attiny827-mur-hero.glb",
      "model_3d_plain": "attiny827-mur-etched.glb",
      "model_3d_step": "attiny827-mur-etched.step",
      "model_3d_step_plain": "attiny827-mur.step",
      "lbr": "attiny827-mur.lbr"
    },
    "distributor_links": {
      "lcsc": "C3219934",
      "digikey": "150-ATTINY827-MURTR-ND",
      "mouser": "579-ATTINY827-MUR"
    },
    "distributor_check": {
      "checked_at": "2026-10-26T18:30:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "150-ATTINY827-MURTR-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "579-ATTINY827-MUR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PA2",
        "type": "bidirectional",
        "description": "PORTA pin 2 with EVOUTA, ADC input AIN2, USART RxD/RXD, SPI MISO and LUT0-IN2 functions; full asynchronous pin-change detection."
      },
      {
        "number": "2",
        "name": "PA3",
        "type": "bidirectional",
        "description": "PORTA pin 3 with EXTCLK external clock input, ADC input AIN3, USART XCK, SPI SCK, TCA0 WO3 and TCB1 WO functions."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "4",
        "name": "VDD",
        "type": "power_in",
        "description": "Power supply; datasheet ordering table lists 1.8V-5.5V supply voltage."
      },
      {
        "number": "5",
        "name": "PA4",
        "type": "bidirectional",
        "description": "PORTA pin 4 with ADC input AIN4, USART XDIR, SPI SS, TCA0 WO4 and LUT0-OUT functions."
      },
      {
        "number": "6",
        "name": "PA5",
        "type": "bidirectional",
        "description": "PORTA pin 5 with VREFA external reference input, ADC input AIN5, AC0 OUT, TCA0 WO5, TCB0 WO and LUT3-OUT (alternate) functions."
      },
      {
        "number": "7",
        "name": "PA6",
        "type": "bidirectional",
        "description": "PORTA pin 6 with ADC input AIN6 and AC0 negative input AINN0; full asynchronous pin-change detection."
      },
      {
        "number": "8",
        "name": "PA7",
        "type": "bidirectional",
        "description": "PORTA pin 7 with EVOUTA (alternate), ADC input AIN7, AC0 positive input AINP0 and LUT1-OUT functions."
      },
      {
        "number": "9",
        "name": "PB7",
        "type": "bidirectional",
        "description": "PORTB pin 7 with EVOUTB (alternate location); digital function only."
      },
      {
        "number": "10",
        "name": "PB6",
        "type": "bidirectional",
        "description": "PORTB pin 6 with AC0 positive input AINP3 and LUT2-OUT (alternate); digital function only per pinout legend."
      },
      {
        "number": "11",
        "name": "PB5",
        "type": "bidirectional",
        "description": "PORTB pin 5 with CLKOUT, ADC input AIN8, AC0 positive input AINP1 and TCA0 WO2 (alternate) functions."
      },
      {
        "number": "12",
        "name": "PB4",
        "type": "bidirectional",
        "description": "PORTB pin 4 with alternate RESET location, ADC input AIN9, AC0 negative input AINN1, TCA0 WO1 (alternate) and LUT0-OUT functions."
      },
      {
        "number": "13",
        "name": "PB3",
        "type": "bidirectional",
        "description": "PORTB pin 3 with TOSC1 crystal oscillator pin, USART RxD, TCA0 WO0 (alternate) and LUT2-OUT functions."
      },
      {
        "number": "14",
        "name": "PB2",
        "type": "bidirectional",
        "description": "PORTB pin 2 with TOSC2 crystal oscillator pin, EVOUTB, USART TxD, TCA0 WO2 and LUT2-IN2 functions."
      },
      {
        "number": "15",
        "name": "PB1",
        "type": "bidirectional",
        "description": "PORTB pin 1 with ADC input AIN10, AC0 positive input AINP2, USART XCK, TWI SDA, TCA0 WO1 and LUT2-IN1 functions."
      },
      {
        "number": "16",
        "name": "PB0",
        "type": "bidirectional",
        "description": "PORTB pin 0 with ADC input AIN11, AC0 negative input AINN2, USART XDIR, TWI SCL, TCA0 WO0 and LUT2-IN0 functions."
      },
      {
        "number": "17",
        "name": "PC0",
        "type": "bidirectional",
        "description": "PORTC pin 0 with ADC input AIN12, USART XCK, SPI SCK, TCB0 WO (alternate) and LUT3-IN0 functions."
      },
      {
        "number": "18",
        "name": "PC1",
        "type": "bidirectional",
        "description": "PORTC pin 1 with ADC input AIN13, USART RxD, SPI MISO, LUT1-OUT (alternate) and LUT3-IN1 functions."
      },
      {
        "number": "19",
        "name": "PC2",
        "type": "bidirectional",
        "description": "PORTC pin 2 with EVOUTC, ADC input AIN14, USART TxD, SPI MOSI and LUT3-IN2 functions; full asynchronous pin-change detection."
      },
      {
        "number": "20",
        "name": "PC3",
        "type": "bidirectional",
        "description": "PORTC pin 3 with ADC input AIN15, USART XDIR, SPI SS, TCA0 WO3 (alternate) and LUT1-IN0 functions."
      },
      {
        "number": "21",
        "name": "PC4",
        "type": "bidirectional",
        "description": "PORTC pin 4 with TCA0 WO4 (alternate), TCB1 WO (alternate), LUT1-IN1 and LUT3-OUT functions."
      },
      {
        "number": "22",
        "name": "PC5",
        "type": "bidirectional",
        "description": "PORTC pin 5 with TCA0 WO5 (alternate) and LUT1-IN2 functions."
      },
      {
        "number": "23",
        "name": "PA0",
        "type": "bidirectional",
        "description": "PORTA pin 0 configured as RESET or UPDI programming/debug pin (selected by RSTPINCFG fuse), also LUT0-IN0."
      },
      {
        "number": "24",
        "name": "PA1",
        "type": "bidirectional",
        "description": "PORTA pin 1 with ADC input AIN1, USART TXD, SPI MOSI and LUT0-IN1 functions."
      },
      {
        "number": "25",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad (from the footprint; not named in the datasheet pin table)."
      }
    ],
    "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: The 24-pin VQFN has an exposed pad (D2 about 2.60 mm). The datasheet says the pad is not electricall; Pin numbers come from the 24-pin VQFN column of Table 3-1 (page 17). The pinout figure on page 16 is; The MPN suffix -MUR means VQFN package, -40°C to +85°C, tape and reel. The ordering table lists ATTI"
        ],
        "pages_sent": 100,
        "cost_usd": 0.6364,
        "at": "2026-10-26T18:30:33"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/3ae8065bab9cde6fd0bd760d42b9401d.pdf",
        "pages": 532,
        "sha256": "654989c2c48c3753",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 25,
        "described": 25,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "attiny827-mur.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "attiny827-mur-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4.0,
          4.0,
          0.77
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4f8ddf686a33104a471e4de2bc01d444b5f19ad01b58d7fbbca716d28c4918dd",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}