ATTINY20-SSURA87

{
  "slug": "attiny20-ssura87",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech Microcontrollers (MCU/MPU/SOC), SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "attiny20-ssura87",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "attiny20-ssura87.kicad_sym",
    "attiny20-ssura87.kicad_mod",
    "attiny20-ssura87.glb",
    "attiny20-ssura87.step",
    "attiny20-ssura87.lbr",
    "docs/hero.png",
    "docs/attiny20-ssura87-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "attiny20-ssura87-hero.glb",
    "attiny20-ssura87-hero.overlay.json",
    "attiny20-ssura87-etched.glb"
  ],
  "component": {
    "mpn": "ATTINY20-SSURA87",
    "manufacturer": "Microchip Tech",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Microcontrollers (MCU/MPU/SOC)",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/7e4e38e8f6ea03327dc401c7e893588b.pdf",
    "parts": {
      "symbol": "attiny20-ssura87.kicad_sym",
      "footprint": "attiny20-ssura87.kicad_mod",
      "model_3d": "attiny20-ssura87-hero.glb",
      "model_3d_plain": "attiny20-ssura87-etched.glb",
      "model_3d_step": "attiny20-ssura87-etched.step",
      "model_3d_step_plain": "attiny20-ssura87.step",
      "lbr": "attiny20-ssura87.lbr"
    },
    "distributor_links": {
      "lcsc": "C7471460"
    },
    "distributor_check": {
      "checked_at": "2026-10-27T06:50:54Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage pin; the datasheet gives an operating voltage of 1.8 - 5.5V."
      },
      {
        "number": "2",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Port B bit 0, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as CLKI/T0/TPICLK/PCINT8."
      },
      {
        "number": "3",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Port B bit 1, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as OC1A/SDA/MOSI/TPIDATA/PCINT9."
      },
      {
        "number": "4",
        "name": "PB3/RESET",
        "type": "input",
        "description": "Reset input; a low level longer than the minimum pulse length generates a reset, and the pin can be used as a weak I/O pin when the RSTDISBL fuse is programmed."
      },
      {
        "number": "5",
        "name": "PB2",
        "type": "bidirectional",
        "description": "Port B bit 2, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as INT0/MISO/OC1B/OC0A/CKOUT/PCINT10."
      },
      {
        "number": "6",
        "name": "PA7",
        "type": "bidirectional",
        "description": "Port A bit 7, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as ADC7/OC0B/ICP1/T1/SCL/SCK/PCINT7."
      },
      {
        "number": "7",
        "name": "PA6",
        "type": "bidirectional",
        "description": "Port A bit 6, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as ADC6/PCINT6/SS."
      },
      {
        "number": "8",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Port A bit 5, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as ADC5/PCINT5."
      },
      {
        "number": "9",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Port A bit 4, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as ADC4/PCINT4."
      },
      {
        "number": "10",
        "name": "PA3",
        "type": "bidirectional",
        "description": "Port A bit 3, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as ADC3/PCINT3."
      },
      {
        "number": "11",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Port A bit 2, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as ADC2/AIN1/PCINT2."
      },
      {
        "number": "12",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Port A bit 1, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as ADC1/AIN0/PCINT1."
      },
      {
        "number": "13",
        "name": "PA0",
        "type": "bidirectional",
        "description": "Port A bit 0, a bi-directional I/O pin with a selectable internal pull-up resistor, also serving as ADC0/PCINT0."
      },
      {
        "number": "14",
        "name": "GND",
        "type": "power_in",
        "description": "Ground reference pin."
      }
    ],
    "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: The MPN ATTINY20-SSURA87 does not appear in the ordering table. The closest listed code is ATtiny20-"
        ],
        "pages_sent": 40,
        "cost_usd": 0.0525,
        "at": "2026-10-27T06:50:32"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/7e4e38e8f6ea03327dc401c7e893588b.pdf",
        "pages": 219,
        "sha256": "0e035d7d6b3af09f",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "attiny20-ssura87.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.7,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3b9a775da256c8afcc28dcddfbc2eb3f266107fe61ce8446d96f2c52b6f44a70",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "attiny20-ssura87-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          8.7,
          1.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "bc862bc7fdbd1db3f7ccad54c7e62b310e247f8eadfcc6d15c1599a3f2fddced",
        "checked": "2026-10-27",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}