ATTINY45-20PU

{
  "slug": "attiny45-20pu",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech MICROCHIP, DIP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "attiny45-20pu",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "attiny45-20pu.kicad_sym",
    "attiny45-20pu.kicad_mod",
    "attiny45-20pu.glb",
    "attiny45-20pu.step",
    "attiny45-20pu.lbr",
    "docs/hero.png",
    "docs/attiny45-20pu-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "attiny45-20pu-hero.glb",
    "attiny45-20pu-hero.overlay.json",
    "attiny45-20pu-etched.glb"
  ],
  "component": {
    "mpn": "ATTINY45-20PU",
    "manufacturer": "Microchip Tech",
    "package": "DIP-8",
    "pin_count": 8,
    "category": "Embedded Processors & Controllers",
    "subcategory": "MICROCHIP",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/450b3c1ffee14a95ae094a5c80e32a74.pdf",
    "parts": {
      "symbol": "attiny45-20pu.kicad_sym",
      "footprint": "attiny45-20pu.kicad_mod",
      "model_3d": "attiny45-20pu-hero.glb",
      "model_3d_plain": "attiny45-20pu-etched.glb",
      "model_3d_step": "attiny45-20pu-etched.step",
      "model_3d_step_plain": "attiny45-20pu.step",
      "lbr": "attiny45-20pu.lbr"
    },
    "distributor_links": {
      "lcsc": "C152181",
      "digikey": "ATTINY45-20PU-ND",
      "mouser": "556-ATTINY45-20PU"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T06:03:42Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "ATTINY45-20PU-ND",
        "status": "found",
        "lifecycle": "Active"
      },
      "mouser": {
        "pn": "556-ATTINY45-20PU",
        "status": "found",
        "lifecycle": "Not Recommended for New Designs"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "PB5",
        "type": "bidirectional",
        "description": "Port B bit 5 (PCINT5/RESET/ADC0/dW): a low level longer than the minimum pulse length on RESET generates a reset (if the reset pin is not disabled), and the pin can also be used as a weak I/O pin."
      },
      {
        "number": "2",
        "name": "PB3",
        "type": "bidirectional",
        "description": "Port B bit 3 (PCINT3/XTAL1/CLKI/OC1B/ADC3) is a bi-directional I/O pin with internal pull-up, tri-stated during reset."
      },
      {
        "number": "3",
        "name": "PB4",
        "type": "bidirectional",
        "description": "Port B bit 4 (PCINT4/XTAL2/CLKO/OC1B/ADC2) is a bi-directional I/O pin with internal pull-up, tri-stated during reset."
      },
      {
        "number": "4",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      },
      {
        "number": "5",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Port B bit 0 (MOSI/DI/SDA/AIN0/OC0A/OC1A/AREF/PCINT0) is a bi-directional I/O pin with internal pull-up, tri-stated during reset."
      },
      {
        "number": "6",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Port B bit 1 (MISO/DO/AIN1/OC0B/OC1A/PCINT1) is a bi-directional I/O pin with internal pull-up, tri-stated during reset."
      },
      {
        "number": "7",
        "name": "PB2",
        "type": "bidirectional",
        "description": "Port B bit 2 (SCK/USCK/SCL/ADC1/T0/INT0/PCINT2) is a bi-directional I/O pin with internal pull-up, tri-stated during reset."
      },
      {
        "number": "8",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage, 2.7 - 5.5V for ATtiny45 (1.8 - 5.5V for the V version)."
      }
    ],
    "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: Pinout figure prints OC1B for both PB3 and PB4 (likely one is complement /OC1B, overbar lost in text; Pin types for Port B pins are inferred as bidirectional; PB5 doubles as RESET input.; Pin-to-number mapping read from the figure text layout (pins 1-4 left, 8-5 right); the pin-number-to"
        ],
        "pages_sent": 19,
        "cost_usd": 0.1466,
        "at": "2026-10-23T06:02:58"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/450b3c1ffee14a95ae094a5c80e32a74.pdf",
        "pages": 30,
        "sha256": "80124a2d9a6f0385",
        "source_tier": "mfr"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "attiny45-20pu.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "4a377a56a8d9e9c0b86c095ef9ecc1869ac19e7f5069a3247b294250bf4f235d",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "attiny45-20pu-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "body on z = 0, through-hole leads below",
        "extents_mm": [
          7.874,
          9.27,
          6.98
        ],
        "zmin_mm": -3.3,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2f3537668ffe4d3db19dac0dc5b708400596428ecfbbb4e002810ef65fe1c267",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}