ATTINY3216-SNR

{
  "slug": "attiny3216-snr",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech Microcontroller Units (MCUs/MPUs/SOCs), SOIC-20-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "attiny3216-snr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "attiny3216-snr.kicad_sym",
    "attiny3216-snr.kicad_mod",
    "attiny3216-snr.glb",
    "attiny3216-snr.step",
    "attiny3216-snr.lbr",
    "docs/hero.png",
    "docs/attiny3216-snr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "attiny3216-snr-hero.glb",
    "attiny3216-snr-hero.overlay.json",
    "attiny3216-snr-etched.glb"
  ],
  "component": {
    "mpn": "ATTINY3216-SNR",
    "manufacturer": "Microchip Tech",
    "package": "SOIC-20-300mil",
    "pin_count": 20,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontroller Units (MCUs/MPUs/SOCs)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/94a5c32f36f0127cc89a425d81cb60db.pdf",
    "parts": {
      "symbol": "attiny3216-snr.kicad_sym",
      "footprint": "attiny3216-snr.kicad_mod",
      "model_3d": "attiny3216-snr-hero.glb",
      "model_3d_plain": "attiny3216-snr-etched.glb",
      "model_3d_step": "attiny3216-snr-etched.step",
      "model_3d_step_plain": "attiny3216-snr.step",
      "lbr": "attiny3216-snr.lbr"
    },
    "distributor_links": {
      "lcsc": "C609661"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T09:35:02Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply input for the device, operating range 2.7V to 5.5V."
      },
      {
        "number": "2",
        "name": "PA4",
        "type": "bidirectional",
        "description": "General-purpose I/O PA4 with ADC0 AIN4, ADC1 AIN0, PTC X0/Y0, TCA0 WO4, TCD0 WOA, SPI0 SS, USART0 XDIR (alternate) and CCL LUT0-OUT functions."
      },
      {
        "number": "3",
        "name": "PA5",
        "type": "bidirectional",
        "description": "General-purpose I/O PA5 with external reference input VREFA, ADC0 AIN5, ADC1 AIN1, PTC X1/Y1, TCA0 WO5, TCB0 WO and TCD0 WOB functions."
      },
      {
        "number": "4",
        "name": "PA6",
        "type": "bidirectional",
        "description": "General-purpose I/O PA6 with ADC0 AIN6, ADC1 AIN2, PTC X2/Y2, analog comparator inputs and the DAC0 analog output."
      },
      {
        "number": "5",
        "name": "PA7",
        "type": "bidirectional",
        "description": "General-purpose I/O PA7 with ADC0 AIN7, ADC1 AIN3, PTC X3/Y3, analog comparator inputs and CCL LUT1-OUT functions."
      },
      {
        "number": "6",
        "name": "PB5",
        "type": "bidirectional",
        "description": "General-purpose I/O PB5 with CLKOUT, ADC0 AIN8, PTC X12/Y12, analog comparator input and TCA0 WO2 (alternate) functions."
      },
      {
        "number": "7",
        "name": "PB4",
        "type": "bidirectional",
        "description": "General-purpose I/O PB4 with ADC0 AIN9, PTC X13/Y13, analog comparator inputs, TCA0 WO1 (alternate) and LUT0-OUT (alternate) functions."
      },
      {
        "number": "8",
        "name": "PB3",
        "type": "bidirectional",
        "description": "General-purpose I/O PB3 that also serves as the TOSC1 32.768 kHz crystal oscillator pin, with USART0 RxD and TCA0 WO0 (alternate) functions."
      },
      {
        "number": "9",
        "name": "PB2/TOSC2",
        "type": "bidirectional",
        "description": "General-purpose I/O PB2 that also serves as the TOSC2 32.768 kHz crystal oscillator pin, with EVOUT1, USART0 TxD and TCA0 WO2 functions."
      },
      {
        "number": "10",
        "name": "PB1",
        "type": "bidirectional",
        "description": "General-purpose I/O PB1 with ADC AIN10, PTC X4/Y4, analog comparator input, USART0 XCK, TWI0 SDA and TCA0 WO1 functions."
      },
      {
        "number": "11",
        "name": "PB0",
        "type": "bidirectional",
        "description": "General-purpose I/O PB0 with ADC AIN11, PTC X5/Y5, analog comparator inputs, USART0 XDIR, TWI0 SCL and TCA0 WO0 functions."
      },
      {
        "number": "12",
        "name": "PC0",
        "type": "bidirectional",
        "description": "General-purpose I/O PC0 with ADC AIN6, PTC X6/Y6, SPI0 SCK (alternate), TCB0 WO (alternate) and TCD0 WOC functions."
      },
      {
        "number": "13",
        "name": "PC1",
        "type": "bidirectional",
        "description": "General-purpose I/O PC1 with ADC AIN7, PTC X7/Y7, SPI0 MISO (alternate), TCD0 WOD and LUT1-OUT (alternate) functions."
      },
      {
        "number": "14",
        "name": "PC2",
        "type": "bidirectional",
        "description": "General-purpose I/O PC2 with EVOUT2, ADC AIN8, PTC X8/Y8 and SPI0 MOSI (alternate) functions."
      },
      {
        "number": "15",
        "name": "PC3",
        "type": "bidirectional",
        "description": "General-purpose I/O PC3 with ADC AIN9, PTC X9/Y9, SPI0 SS (alternate), TCA0 WO3 (alternate) and CCL LUT1-IN0 functions."
      },
      {
        "number": "16",
        "name": "PA0/RESET/UPDI",
        "type": "bidirectional",
        "description": "General-purpose I/O PA0 that is configurable by fuse as the RESET input or the single-pin UPDI program/debug interface, with ADC0 AIN0 and CCL LUT0-IN0 functions."
      },
      {
        "number": "17",
        "name": "PA1",
        "type": "bidirectional",
        "description": "General-purpose I/O PA1 with ADC0 AIN1, SPI0 MOSI, USART0 TxD and TWI0 SDA (alternate positions) and CCL LUT0-IN1 functions."
      },
      {
        "number": "18",
        "name": "PA2",
        "type": "bidirectional",
        "description": "General-purpose I/O PA2 with EVOUT0, ADC0 AIN2, SPI0 MISO, USART0 RxD and TWI0 SCL (alternate positions) and CCL LUT0-IN2 functions."
      },
      {
        "number": "19",
        "name": "PA3/EXTCLK",
        "type": "bidirectional",
        "description": "General-purpose I/O PA3 that also serves as the external clock input EXTCLK, with ADC0 AIN3, SPI0 SCK, TCA0 WO3 and TCB1 WO functions."
      },
      {
        "number": "20",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference for the device."
      }
    ],
    "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 MPN suffix -SNR does not appear in this datasheet's ordering table. It lists only ATtiny3216-SBT; The pinout figure on page 14 is garbled in the text. Pin numbers were taken from the SOIC 20-Pin col; The datasheet states no per-pin current or voltage limits for the SOIC pins here, so descriptions li"
        ],
        "pages_sent": 88,
        "cost_usd": 0.5777,
        "at": "2026-10-27T09:34:41"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/94a5c32f36f0127cc89a425d81cb60db.pdf",
        "pages": 572,
        "sha256": "97cb689010a2d3b4",
        "source_tier": "mfr"
      },
      "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": "attiny3216-snr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
          12.8,
          2.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "59a10b341e6972b31d81802a048060326da627d8b92dcf4263064f4f62ec808e",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "attiny3216-snr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
          12.8,
          2.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5d9b12439c23d37007deaa3e4086411e140b11775d5334f9103ee8520c8a7fef",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}