C8051F121-GQR

{
  "slug": "c8051f121-gqr",
  "version": "0.1.0",
  "type": "component",
  "description": "SILICON LABS SILICON LABS, TQFP-64(10x10). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "c8051f121-gqr",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "c8051f121-gqr.kicad_sym",
    "c8051f121-gqr.kicad_mod",
    "c8051f121-gqr.glb",
    "c8051f121-gqr.step",
    "c8051f121-gqr.lbr",
    "docs/hero.png",
    "docs/c8051f121-gqr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "c8051f121-gqr-hero.glb",
    "c8051f121-gqr-hero.overlay.json"
  ],
  "component": {
    "mpn": "C8051F121-GQR",
    "manufacturer": "SILICON LABS",
    "package": "TQFP-64(10x10)",
    "pin_count": 64,
    "category": "Embedded Processors & Controllers",
    "subcategory": "SILICON LABS",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/89a4c8f1a121dbedb2909908867caf80.pdf",
    "parts": {
      "symbol": "c8051f121-gqr.kicad_sym",
      "footprint": "c8051f121-gqr.kicad_mod",
      "model_3d": "c8051f121-gqr-hero.glb",
      "model_3d_plain": "c8051f121-gqr.glb",
      "model_3d_step": "c8051f121-gqr-etched.step",
      "model_3d_step_plain": "c8051f121-gqr.step",
      "lbr": "c8051f121-gqr.lbr"
    },
    "distributor_links": {
      "lcsc": "C2931363",
      "digikey": "336-4381-2-ND",
      "mouser": "634-C8051F121-GQR"
    },
    "distributor_check": {
      "checked_at": "2026-11-13T21:29:42Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": "336-4381-2-ND",
        "status": "found"
      },
      "mouser": {
        "pn": "634-C8051F121-GQR",
        "status": "found"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CP1-",
        "type": "input",
        "description": "Comparator 1 inverting input."
      },
      {
        "number": "2",
        "name": "CP1+",
        "type": "input",
        "description": "Comparator 1 non-inverting input."
      },
      {
        "number": "3",
        "name": "CP0-",
        "type": "input",
        "description": "Comparator 0 inverting input."
      },
      {
        "number": "4",
        "name": "CP0+",
        "type": "input",
        "description": "Comparator 0 non-inverting input."
      },
      {
        "number": "5",
        "name": "AGND",
        "type": "power_in",
        "description": "Analog ground; must be tied to ground."
      },
      {
        "number": "6",
        "name": "AV+",
        "type": "power_in",
        "description": "Analog supply voltage; must be tied to +2.7 to +3.6 V."
      },
      {
        "number": "7",
        "name": "VREF",
        "type": "power_in",
        "description": "Bandgap voltage reference output (all devices); DAC voltage reference input on C8051F121/3/5/7."
      },
      {
        "number": "8",
        "name": "VREFA",
        "type": "input",
        "description": "ADC0 and ADC2 voltage reference input."
      },
      {
        "number": "9",
        "name": "AIN0.0",
        "type": "input",
        "description": "ADC0 input channel 0."
      },
      {
        "number": "10",
        "name": "AIN0.1",
        "type": "input",
        "description": "ADC0 input channel 1."
      },
      {
        "number": "11",
        "name": "AIN0.2",
        "type": "input",
        "description": "ADC0 input channel 2."
      },
      {
        "number": "12",
        "name": "AIN0.3",
        "type": "input",
        "description": "ADC0 input channel 3."
      },
      {
        "number": "13",
        "name": "AIN0.4",
        "type": "input",
        "description": "ADC0 input channel 4."
      },
      {
        "number": "14",
        "name": "AIN0.5",
        "type": "input",
        "description": "ADC0 input channel 5."
      },
      {
        "number": "15",
        "name": "AIN0.6",
        "type": "input",
        "description": "ADC0 input channel 6."
      },
      {
        "number": "16",
        "name": "AIN0.7",
        "type": "input",
        "description": "ADC0 input channel 7."
      },
      {
        "number": "17",
        "name": "XTAL1",
        "type": "input",
        "description": "Crystal input, the return for the internal oscillator circuit for a crystal or ceramic resonator; becomes the system clock if overdriven by an external CMOS clock."
      },
      {
        "number": "18",
        "name": "XTAL2",
        "type": "output",
        "description": "Crystal output; excitation driver for a crystal or ceramic resonator."
      },
      {
        "number": "19",
        "name": "MONEN",
        "type": "input",
        "description": "VDD monitor enable; tied high enables the internal VDD monitor that resets the system when VDD < VRST, tied low disables it, and must be tied high or low."
      },
      {
        "number": "20",
        "name": "AIN2.7/A15/P1.7",
        "type": "bidirectional",
        "description": "ADC2 input channel 7, external memory address bit 15 (non-multiplexed mode), or Port 1.7."
      },
      {
        "number": "21",
        "name": "AIN2.6/A14/P1.6",
        "type": "bidirectional",
        "description": "ADC2 input channel 6, external memory address bit 14 (non-multiplexed mode), or Port 1.6."
      },
      {
        "number": "22",
        "name": "AIN2.5/A13/P1.5",
        "type": "bidirectional",
        "description": "ADC2 input channel 5, external memory address bit 13 (non-multiplexed mode), or Port 1.5."
      },
      {
        "number": "23",
        "name": "AIN2.4/A12/P1.4",
        "type": "bidirectional",
        "description": "ADC2 input channel 4, external memory address bit 12 (non-multiplexed mode), or Port 1.4."
      },
      {
        "number": "24",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply voltage; must be tied to +2.7 to +3.6 V."
      },
      {
        "number": "25",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground; must be tied to ground."
      },
      {
        "number": "26",
        "name": "AIN2.3/A11/P1.3",
        "type": "bidirectional",
        "description": "ADC2 input channel 3, external memory address bit 11 (non-multiplexed mode), or Port 1.3."
      },
      {
        "number": "27",
        "name": "AIN2.2/A10/P1.2",
        "type": "bidirectional",
        "description": "ADC2 input channel 2, external memory address bit 10 (non-multiplexed mode), or Port 1.2."
      },
      {
        "number": "28",
        "name": "AIN2.1/A9/P1.1",
        "type": "bidirectional",
        "description": "ADC2 input channel 1, external memory address bit 9 (non-multiplexed mode), or Port 1.1."
      },
      {
        "number": "29",
        "name": "AIN2.0/A8/P1.0",
        "type": "bidirectional",
        "description": "ADC2 input channel 0, external memory address bit 8 (non-multiplexed mode), or Port 1.0."
      },
      {
        "number": "30",
        "name": "A15m/A7/P2.7",
        "type": "bidirectional",
        "description": "External memory address bit 15 (multiplexed) or bit 7 (non-multiplexed), or Port 2.7."
      },
      {
        "number": "31",
        "name": "A14m/A6/P2.6",
        "type": "bidirectional",
        "description": "External memory address bit 14 (multiplexed) or bit 6 (non-multiplexed), or Port 2.6."
      },
      {
        "number": "32",
        "name": "A13m/A5/P2.5",
        "type": "bidirectional",
        "description": "External memory address bit 13 (multiplexed) or bit 5 (non-multiplexed), or Port 2.5."
      },
      {
        "number": "33",
        "name": "A12m/A4/P2.4",
        "type": "bidirectional",
        "description": "External memory address bit 12 (multiplexed) or bit 4 (non-multiplexed), or Port 2.4."
      },
      {
        "number": "34",
        "name": "A11m/A3/P2.3",
        "type": "bidirectional",
        "description": "External memory address bit 11 (multiplexed) or bit 3 (non-multiplexed), or Port 2.3."
      },
      {
        "number": "35",
        "name": "A10m/A2/P2.2",
        "type": "bidirectional",
        "description": "External memory address bit 10 (multiplexed) or bit 2 (non-multiplexed), or Port 2.2."
      },
      {
        "number": "36",
        "name": "A9m/A1/P2.1",
        "type": "bidirectional",
        "description": "External memory address bit 9 (multiplexed) or bit 1 (non-multiplexed), or Port 2.1."
      },
      {
        "number": "37",
        "name": "A8m/A0/P2.0",
        "type": "bidirectional",
        "description": "External memory address bit 8 (multiplexed) or bit 0 (non-multiplexed), or Port 2.0."
      },
      {
        "number": "38",
        "name": "AD7/D7/P3.7",
        "type": "bidirectional",
        "description": "External memory address/data bit 7 (multiplexed) or data bit 7 (non-multiplexed), or Port 3.7."
      },
      {
        "number": "39",
        "name": "AD6/D6/P3.6",
        "type": "bidirectional",
        "description": "External memory address/data bit 6 (multiplexed) or data bit 6 (non-multiplexed), or Port 3.6."
      },
      {
        "number": "40",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground; must be tied to ground."
      },
      {
        "number": "41",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply voltage; must be tied to +2.7 to +3.6 V."
      },
      {
        "number": "42",
        "name": "AD5/D5/P3.5",
        "type": "bidirectional",
        "description": "External memory address/data bit 5 (multiplexed) or data bit 5 (non-multiplexed), or Port 3.5."
      },
      {
        "number": "43",
        "name": "AD4/D4/P3.4",
        "type": "bidirectional",
        "description": "External memory address/data bit 4 (multiplexed) or data bit 4 (non-multiplexed), or Port 3.4."
      },
      {
        "number": "44",
        "name": "AD3/D3/P3.3",
        "type": "bidirectional",
        "description": "External memory address/data bit 3 (multiplexed) or data bit 3 (non-multiplexed), or Port 3.3."
      },
      {
        "number": "45",
        "name": "AD2/D2/P3.2",
        "type": "bidirectional",
        "description": "External memory address/data bit 2 (multiplexed) or data bit 2 (non-multiplexed), or Port 3.2."
      },
      {
        "number": "46",
        "name": "AD1/D1/P3.1",
        "type": "bidirectional",
        "description": "External memory address/data bit 1 (multiplexed) or data bit 1 (non-multiplexed), or Port 3.1."
      },
      {
        "number": "47",
        "name": "AD0/D0/P3.0",
        "type": "bidirectional",
        "description": "External memory address/data bit 0 (multiplexed) or data bit 0 (non-multiplexed), or Port 3.0."
      },
      {
        "number": "48",
        "name": "WR/P0.7",
        "type": "bidirectional",
        "description": "/WR strobe for the external memory bus, or Port 0.7."
      },
      {
        "number": "49",
        "name": "RD/P0.6",
        "type": "bidirectional",
        "description": "/RD strobe for the external memory bus, or Port 0.6."
      },
      {
        "number": "50",
        "name": "ALE/P0.5",
        "type": "bidirectional",
        "description": "ALE strobe for the external memory address bus (multiplexed mode), or Port 0.5."
      },
      {
        "number": "51",
        "name": "P0.4",
        "type": "bidirectional",
        "description": "Port 0.4 general-purpose I/O or crossbar-assigned digital function."
      },
      {
        "number": "52",
        "name": "P0.3",
        "type": "bidirectional",
        "description": "Port 0.3 general-purpose I/O or crossbar-assigned digital function."
      },
      {
        "number": "53",
        "name": "P0.2",
        "type": "bidirectional",
        "description": "Port 0.2 general-purpose I/O or crossbar-assigned digital function."
      },
      {
        "number": "54",
        "name": "P0.1",
        "type": "bidirectional",
        "description": "Port 0.1 general-purpose I/O or crossbar-assigned digital function (RX0 when UART0 is enabled)."
      },
      {
        "number": "55",
        "name": "P0.0",
        "type": "bidirectional",
        "description": "Port 0.0 general-purpose I/O or crossbar-assigned digital function (TX0 when UART0 is enabled)."
      },
      {
        "number": "56",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground; must be tied to ground."
      },
      {
        "number": "57",
        "name": "VDD",
        "type": "power_in",
        "description": "Digital supply voltage; must be tied to +2.7 to +3.6 V."
      },
      {
        "number": "58",
        "name": "TMS",
        "type": "input",
        "description": "JTAG test mode select with internal pullup."
      },
      {
        "number": "59",
        "name": "TCK",
        "type": "input",
        "description": "JTAG test clock with internal pullup."
      },
      {
        "number": "60",
        "name": "TDI",
        "type": "input",
        "description": "JTAG test data input with internal pullup, latched on the rising edge of TCK."
      },
      {
        "number": "61",
        "name": "TDO",
        "type": "tri_state",
        "description": "JTAG test data output with internal pullup, shifted out on the falling edge of TCK; tri-state driver."
      },
      {
        "number": "62",
        "name": "RST",
        "type": "bidirectional",
        "description": "Device reset; open-drain output of internal VDD monitor, driven low when VDD < VRST and MONEN is high; an external source can force a reset by driving it low."
      },
      {
        "number": "63",
        "name": "DAC1",
        "type": "output",
        "description": "Digital-to-analog converter 1 voltage output."
      },
      {
        "number": "64",
        "name": "DAC0",
        "type": "output",
        "description": "Digital-to-analog converter 0 voltage output."
      }
    ],
    "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 datasheet covers multiple parts. The MPN C8051F121-GQR was mapped to the 'F121/3/5/7 TQFP-64 col; Pin types for the mixed analog/digital port pins (P1.x/AIN2.x) are set to bidirectional. The datashe"
        ],
        "pages_sent": 52,
        "cost_usd": 0.504,
        "at": "2026-11-13T21:29:29"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/89a4c8f1a121dbedb2909908867caf80.pdf",
        "pages": 350,
        "sha256": "24fdae17f6f8efe6",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 64,
        "described": 64,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "c8051f121-gqr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "60567e81b0770b6c519104183a7a05ba52dddc11146b5fbe21434fbb5801696c",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "c8051f121-gqr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          12.0,
          12.0,
          1.1
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "18473b95a12dd2a9a563e37339fdf3be291bed259c5408ce21260f9dff171907",
        "checked": "2026-11-13",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ],
    "package_dims": {
      "package_code": "TQFP-64",
      "source_page": 54,
      "D": {
        "nom_mm": 10.0,
        "range_mm": [
          null,
          null
        ]
      },
      "E1": {
        "nom_mm": 10.0,
        "range_mm": [
          null,
          null
        ]
      },
      "E": {
        "nom_mm": 12.0,
        "range_mm": [
          null,
          null
        ]
      },
      "e": {
        "nom_mm": 0.5,
        "range_mm": [
          null,
          null
        ]
      },
      "A": {
        "nom_mm": 1.2,
        "range_mm": [
          null,
          1.2
        ]
      },
      "source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
      "model_check": {
        "file": "c8051f121-gqr.step",
        "verdict": "PASS",
        "reasons": [
          "height and body within the datasheet's package drawing"
        ],
        "by": "factory/package_fit.py"
      }
    }
  }
}