ATTINY816-MNR

{
  "slug": "attiny816-mnr",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech Microcontrollers (MCU/MPU/SOC), UQFN-20-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "attiny816-mnr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "attiny816-mnr.kicad_sym",
    "attiny816-mnr.kicad_mod",
    "attiny816-mnr.glb",
    "attiny816-mnr.step",
    "attiny816-mnr.lbr",
    "docs/hero.png",
    "docs/attiny816-mnr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "attiny816-mnr-hero.glb",
    "attiny816-mnr-hero.overlay.json",
    "attiny816-mnr-etched.glb"
  ],
  "component": {
    "mpn": "ATTINY816-MNR",
    "manufacturer": "Microchip Tech",
    "package": "UQFN-20-EP(3x3)",
    "pin_count": 21,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589039702641295360",
    "parts": {
      "symbol": "attiny816-mnr.kicad_sym",
      "footprint": "attiny816-mnr.kicad_mod",
      "model_3d": "attiny816-mnr-hero.glb",
      "model_3d_plain": "attiny816-mnr-etched.glb",
      "model_3d_step": "attiny816-mnr-etched.step",
      "model_3d_step_plain": "attiny816-mnr.step",
      "lbr": "attiny816-mnr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2052778"
    },
    "distributor_check": {
      "checked_at": "2026-10-17T23:25:52Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Port A bit 2, alternate functions EVOUT0, ADC0 AIN2, USART0 RxD (alternate position), SPI0 MISO (alternate position), TWI0 SCL (alternate position) and CCL LUT0-IN2; it has full asynchronous pin-change detection for interrupts and wake-up."
      },
      {
        "number": "2",
        "name": "PA3",
        "type": "bidirectional",
        "description": "Port A bit 3, alternate functions EXTCLK (external clock), ADC0 AIN3, USART0 XCK (alternate position), SPI0 SCK and TCA0 WO3; all pins can be used as event inputs and external interrupts."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "4",
        "name": "VDD",
        "type": "power_in",
        "description": "Supply voltage input; operating supply range is 1.8 V to 5.5 V per the General Operating Conditions."
      },
      {
        "number": "5",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Port A bit 4, alternate functions ADC0 AIN4, PTC X0/Y0, USART0 XDIR (alternate position), SPI0 SS, TCA0 WO4, TCD0 WOA and CCL LUT0-OUT."
      },
      {
        "number": "6",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Port A bit 5, alternate functions ADC0 AIN5, PTC X1/Y1, DAC0 OUT, TCA0 WO5, TCB0 WO and TCD0 WOB."
      },
      {
        "number": "7",
        "name": "PA6",
        "type": "bidirectional",
        "description": "Port A bit 6, alternate functions ADC0 AIN6, PTC X2/Y2, AC0 AINN0 and DAC0 OUT; it has full asynchronous pin-change detection for interrupts and wake-up."
      },
      {
        "number": "8",
        "name": "PA7",
        "type": "bidirectional",
        "description": "Port A bit 7, alternate functions ADC0 AIN7, PTC X3/Y3, AC0 AINP0 and CCL LUT1-OUT."
      },
      {
        "number": "9",
        "name": "PB5",
        "type": "bidirectional",
        "description": "Port B bit 5, alternate functions CLKOUT, ADC0 AIN8, AC0 AINP1 and TCA0 WO2 (alternate position)."
      },
      {
        "number": "10",
        "name": "PB4",
        "type": "bidirectional",
        "description": "Port B bit 4, alternate functions ADC0 AIN9, AC0 AINN1, TCA0 WO1 (alternate position) and CCL LUT0-OUT (alternate position)."
      },
      {
        "number": "11",
        "name": "PB3",
        "type": "passive",
        "description": "Port B bit 3, alternate functions TOSC1 (32.768 kHz crystal oscillator input), USART0 RxD (alternate position) and TCA0 WO0 (alternate position)."
      },
      {
        "number": "12",
        "name": "PB2",
        "type": "passive",
        "description": "Port B bit 2, alternate functions TOSC2 (32.768 kHz crystal oscillator output), EVOUT1, USART0 TxD and TCA0 WO2."
      },
      {
        "number": "13",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Port B bit 1, alternate functions ADC0 AIN10, PTC X4/Y4, USART0 XCK, TWI0 SDA and TCA0 WO1."
      },
      {
        "number": "14",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Port B bit 0, alternate functions ADC0 AIN11, PTC X5/Y5, USART0 XDIR, TWI0 SCL and TCA0 WO0."
      },
      {
        "number": "15",
        "name": "PC0",
        "type": "bidirectional",
        "description": "Port C bit 0, alternate functions SPI0 SCK (alternate position), TCB0 WO (alternate position) and TCD0 WOC."
      },
      {
        "number": "16",
        "name": "PC1",
        "type": "bidirectional",
        "description": "Port C bit 1, alternate functions SPI0 MISO (alternate position), TCD0 WOD and CCL LUT1-OUT (alternate position)."
      },
      {
        "number": "17",
        "name": "PC2",
        "type": "bidirectional",
        "description": "Port C bit 2, alternate functions EVOUT2 and SPI0 MOSI (alternate position)."
      },
      {
        "number": "18",
        "name": "PC3",
        "type": "bidirectional",
        "description": "Port C bit 3, alternate functions SPI0 SS (alternate position), TCA0 WO3 (alternate position) and CCL LUT1-IN0."
      },
      {
        "number": "19",
        "name": "PA0/RESET/UPDI",
        "type": "bidirectional",
        "description": "Port A bit 0 multiplexed with the RESET/UPDI pin used for reset and external programming/debug (UPDI), with alternate functions ADC0 AIN0 and CCL LUT0-IN0; the RESET/UPDI function is selected by the RSTPINCFG fuse."
      },
      {
        "number": "20",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Port A bit 1, alternate functions ADC0 AIN1, USART0 TxD (alternate position), SPI0 MOSI (alternate position), TWI0 SDA (alternate position) and CCL LUT0-IN1."
      },
      {
        "number": "21",
        "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-haiku-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Package hint 'UQFN-20-EP(3x3)' does not match the datasheet. The datasheet gives a 20-pin VQFN 3x3 m; The exposed pad (EP) is shown in the package drawing but is not given a pin number or connection req; Pin types are KiCad-class assignments made by judgement, not stated in the datasheet. RESET/UPDI and",
          "exposed pad 21 added from the footprint"
        ],
        "pages_sent": 132,
        "cost_usd": 0.4095,
        "at": "2026-10-17T23:22:52"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589039702641295360",
        "pages": 623,
        "sha256": "77b4e8ba4cab4c02",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "attiny816-mnr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.52
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "0ee4e1082236390795238cd34b082d96efd160d6292c636cc40201a5a30cdc63",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "attiny816-mnr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          3.0,
          3.0,
          0.52
        ],
        "zmin_mm": 0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "42f52a0406d249a5780077b8731175e9b91a2a65442001e084ab3915060664e5",
        "checked": "2026-10-17",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}