ATTINY841-SSUR

{
  "slug": "attiny841-ssur",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech Pre-ordered MCUs, SOIC-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "attiny841-ssur",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "attiny841-ssur.kicad_sym",
    "attiny841-ssur.kicad_mod",
    "attiny841-ssur.glb",
    "attiny841-ssur.step",
    "attiny841-ssur.lbr",
    "docs/hero.png",
    "docs/attiny841-ssur-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "attiny841-ssur-hero.glb",
    "attiny841-ssur-hero.overlay.json",
    "attiny841-ssur-etched.glb"
  ],
  "component": {
    "mpn": "ATTINY841-SSUR",
    "manufacturer": "Microchip Tech",
    "package": "SOIC-14",
    "pin_count": 14,
    "category": "Embedded Processors & Controllers",
    "subcategory": "Pre-ordered MCUs",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/c1ef26dc733a991ed96417aa4b1d7f6f.pdf",
    "parts": {
      "symbol": "attiny841-ssur.kicad_sym",
      "footprint": "attiny841-ssur.kicad_mod",
      "model_3d": "attiny841-ssur-hero.glb",
      "model_3d_plain": "attiny841-ssur-etched.glb",
      "model_3d_step": "attiny841-ssur-etched.step",
      "model_3d_step_plain": "attiny841-ssur.step",
      "lbr": "attiny841-ssur.lbr"
    },
    "distributor_links": {
      "lcsc": "C614879"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T22:49:39Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "deferred",
        "error": "shared DigiKey quota guard: 870 calls left today"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VCC",
        "type": "power_in",
        "description": "Supply voltage."
      },
      {
        "number": "2",
        "name": "PB0",
        "type": "bidirectional",
        "description": "Port B bit 0 bidirectional I/O with selectable pull-up; alternate functions PCINT8, ADC11, XTAL1 and CLKI (external clock input)."
      },
      {
        "number": "3",
        "name": "PB1",
        "type": "bidirectional",
        "description": "Port B bit 1 bidirectional I/O with selectable pull-up; alternate functions PCINT9, ADC10, XTAL2 and INT0 (external interrupt 0)."
      },
      {
        "number": "4",
        "name": "PB3",
        "type": "bidirectional",
        "description": "Port B bit 3 / RESET: active-low reset input (a low pulse longer than the minimum pulse length resets the device, even if the clock is not running), or a weak I/O pin if the reset pin is disabled; also PCINT11, ADC9 and dW (debugWIRE)."
      },
      {
        "number": "5",
        "name": "PB2",
        "type": "bidirectional",
        "description": "Port B bit 2 bidirectional I/O with selectable pull-up; alternate functions PCINT10, ADC8, CLKO (system clock output), TOCC7, ICP2 and RXD0."
      },
      {
        "number": "6",
        "name": "PA7",
        "type": "bidirectional",
        "description": "Port A bit 7 bidirectional I/O with selectable pull-up and high sink capability; alternate functions PCINT7, ADC7, TOCC6, ICP1, TXD0 and SS."
      },
      {
        "number": "7",
        "name": "PA6",
        "type": "bidirectional",
        "description": "Port A bit 6 bidirectional I/O with selectable pull-up; alternate functions PCINT6, ADC6, ACO1, TOCC5, XCK1, SDA (TWI data) and MOSI."
      },
      {
        "number": "8",
        "name": "PA5",
        "type": "bidirectional",
        "description": "Port A bit 5 bidirectional I/O with selectable pull-up and high sink capability; alternate functions PCINT5, ADC5, ACO0, TOCC4, T2, TXD1 and MISO."
      },
      {
        "number": "9",
        "name": "PA4",
        "type": "bidirectional",
        "description": "Port A bit 4 bidirectional I/O with selectable pull-up; alternate functions PCINT4, ADC4, AIN11, TOCC3, T1, RXD1, SCL (TWI clock) and SCK."
      },
      {
        "number": "10",
        "name": "PA3",
        "type": "bidirectional",
        "description": "Port A bit 3 bidirectional I/O with selectable pull-up; alternate functions PCINT3, ADC3, AIN10, TOCC2, T0, XCK0 and SCK."
      },
      {
        "number": "11",
        "name": "PA2",
        "type": "bidirectional",
        "description": "Port A bit 2 bidirectional I/O with selectable pull-up; alternate functions PCINT2, ADC2, AIN01, TOCC1, RXD0 and SS."
      },
      {
        "number": "12",
        "name": "PA1",
        "type": "bidirectional",
        "description": "Port A bit 1 bidirectional I/O with selectable pull-up; alternate functions PCINT1, ADC1, AIN00, TOCC0, TXD0 and MOSI."
      },
      {
        "number": "13",
        "name": "PA0",
        "type": "bidirectional",
        "description": "Port A bit 0 bidirectional I/O with selectable pull-up; alternate functions PCINT0, ADC0, AREF (external voltage reference) and MISO."
      },
      {
        "number": "14",
        "name": "GND",
        "type": "power_in",
        "description": "Ground."
      }
    ],
    "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: Pin 4 (PB3/RESET) is typed bidirectional because it can serve as a weak I/O when the reset function ; The datasheet figure is text-extracted; pin-to-name mapping was inferred from the column order (pins"
        ],
        "pages_sent": 65,
        "cost_usd": 0.4131,
        "at": "2026-10-22T22:49:13"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/c1ef26dc733a991ed96417aa4b1d7f6f.pdf",
        "pages": 366,
        "sha256": "204e8fd9bfe23322",
        "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": "attiny841-ssur.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": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "attiny841-ssur-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": "b4acca8287d20892d722e56341b00e44b11a8eba2cd6b80827d77216e2e7d5d1",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}