PIC16F873A-I

{
  "slug": "pic16f873a-i",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech MICROCHIP, SOIC-28-300mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "embedded processors & controllers",
    "pic16f873a-i",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "pic16f873a-i.kicad_sym",
    "pic16f873a-i.kicad_mod",
    "pic16f873a-i.glb",
    "pic16f873a-i.step",
    "pic16f873a-i.lbr",
    "docs/hero.png",
    "docs/pic16f873a-i-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "pic16f873a-i-hero.glb",
    "pic16f873a-i-hero.overlay.json",
    "pic16f873a-i-etched.glb"
  ],
  "component": {
    "mpn": "PIC16F873A-I",
    "manufacturer": "Microchip Tech",
    "package": "SOIC-28-300mil",
    "pin_count": 28,
    "category": "Embedded Processors & Controllers",
    "subcategory": "MICROCHIP",
    "datasheet": "https://ww1.microchip.com/downloads/en/DeviceDoc/39582C.pdf",
    "parts": {
      "symbol": "pic16f873a-i.kicad_sym",
      "footprint": "pic16f873a-i.kicad_mod",
      "model_3d": "pic16f873a-i-hero.glb",
      "model_3d_plain": "pic16f873a-i-etched.glb",
      "model_3d_step": "pic16f873a-i-etched.step",
      "model_3d_step_plain": "pic16f873a-i.step",
      "lbr": "pic16f873a-i.lbr"
    },
    "distributor_links": {
      "lcsc": "C9728"
    },
    "distributor_check": {
      "checked_at": "2026-10-26T23:46:16Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "MCLR/VPP",
        "type": "input",
        "description": "Master Clear (Reset) input, an active low Reset to the device, also serving as the programming voltage input."
      },
      {
        "number": "2",
        "name": "RA0/AN0",
        "type": "bidirectional",
        "description": "Digital I/O with analog input 0."
      },
      {
        "number": "3",
        "name": "RA1/AN1",
        "type": "bidirectional",
        "description": "Digital I/O with analog input 1."
      },
      {
        "number": "4",
        "name": "RA2/AN2/VREF-/CVREF",
        "type": "bidirectional",
        "description": "Digital I/O with analog input 2, A/D reference voltage (Low) input, and comparator VREF output."
      },
      {
        "number": "5",
        "name": "RA3/AN3/VREF+",
        "type": "bidirectional",
        "description": "Digital I/O with analog input 3 and A/D reference voltage (High) input."
      },
      {
        "number": "6",
        "name": "RA4/T0CKI/C1OUT",
        "type": "bidirectional",
        "description": "Digital I/O, open-drain when configured as output, with Timer0 external clock input and Comparator 1 output."
      },
      {
        "number": "7",
        "name": "RA5/AN4/SS/C2OUT",
        "type": "bidirectional",
        "description": "Digital I/O with analog input 4, SPI slave select input, and Comparator 2 output."
      },
      {
        "number": "8",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for logic and I/O pins."
      },
      {
        "number": "9",
        "name": "OSC1/CLKI",
        "type": "input",
        "description": "Oscillator crystal or external clock source input."
      },
      {
        "number": "10",
        "name": "OSC2/CLKO",
        "type": "output",
        "description": "Oscillator crystal output connecting to a crystal or resonator; in RC mode it outputs CLKO at 1/4 the OSC1 frequency."
      },
      {
        "number": "11",
        "name": "RC0/T1OSO/T1CKI",
        "type": "bidirectional",
        "description": "Digital I/O with Timer1 oscillator output and Timer1 external clock input."
      },
      {
        "number": "12",
        "name": "RC1/T1OSI/CCP2",
        "type": "bidirectional",
        "description": "Digital I/O with Timer1 oscillator input and Capture2 input, Compare2 output, or PWM2 output."
      },
      {
        "number": "13",
        "name": "RC2/CCP1",
        "type": "bidirectional",
        "description": "Digital I/O with Capture1 input, Compare1 output, or PWM1 output."
      },
      {
        "number": "14",
        "name": "RC3/SCK/SCL",
        "type": "bidirectional",
        "description": "Digital I/O with synchronous serial clock input/output for SPI mode and I2C mode."
      },
      {
        "number": "15",
        "name": "RC4/SDI/SDA",
        "type": "bidirectional",
        "description": "Digital I/O with SPI data input and I2C data I/O."
      },
      {
        "number": "16",
        "name": "RC5/SDO",
        "type": "bidirectional",
        "description": "Digital I/O with SPI data output."
      },
      {
        "number": "17",
        "name": "RC6/TX/CK",
        "type": "bidirectional",
        "description": "Digital I/O with USART asynchronous transmit and USART synchronous clock."
      },
      {
        "number": "18",
        "name": "RC7/RX/DT",
        "type": "bidirectional",
        "description": "Digital I/O with USART asynchronous receive and USART synchronous data."
      },
      {
        "number": "19",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for logic and I/O pins."
      },
      {
        "number": "20",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply for logic and I/O pins."
      },
      {
        "number": "21",
        "name": "RB0/INT",
        "type": "bidirectional",
        "description": "Digital I/O with external interrupt input, which is a Schmitt Trigger input when configured as the external interrupt."
      },
      {
        "number": "22",
        "name": "RB1",
        "type": "bidirectional",
        "description": "Digital I/O with internal weak pull-up software selectable."
      },
      {
        "number": "23",
        "name": "RB2",
        "type": "bidirectional",
        "description": "Digital I/O with internal weak pull-up software selectable."
      },
      {
        "number": "24",
        "name": "RB3/PGM",
        "type": "bidirectional",
        "description": "Digital I/O with low-voltage (single-supply) ICSP programming enable function."
      },
      {
        "number": "25",
        "name": "RB4",
        "type": "bidirectional",
        "description": "Digital I/O with internal weak pull-up software selectable."
      },
      {
        "number": "26",
        "name": "RB5",
        "type": "bidirectional",
        "description": "Digital I/O with internal weak pull-up software selectable."
      },
      {
        "number": "27",
        "name": "RB6/PGC",
        "type": "bidirectional",
        "description": "Digital I/O with in-circuit debugger and ICSP programming clock function."
      },
      {
        "number": "28",
        "name": "RB7/PGD",
        "type": "bidirectional",
        "description": "Digital I/O with in-circuit debugger and ICSP programming data function."
      }
    ],
    "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 (audit)",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 37,
        "cost_usd": 0.0596,
        "at": "2026-10-26T23:45:52"
      },
      "datasheet": {
        "url": "https://ww1.microchip.com/downloads/en/DeviceDoc/39582C.pdf",
        "pages": 234,
        "sha256": "94f1cb4c43edd96e",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 28,
        "described": 28,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "pic16f873a-i.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          10.3,
          17.9,
          2.75
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "b889a13dbe9ec59e79fa9f1b5118b00bfa54f9582392335ff3365b64afc264b1",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "pic16f873a-i-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "971193eb1d3ef261aec21ca0c3aef4ac7a873d82096cf8d5efed5d24cf39a57a",
        "checked": "2026-10-26",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}