MCP4442-104E

{
  "slug": "mcp4442-104e",
  "version": "0.1.0",
  "type": "component",
  "description": "Microchip Tech Digital Potentiometers, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "tags": [
    "component",
    "adc-dac-data conversion",
    "mcp4442-104e",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mcp4442-104e.kicad_sym",
    "mcp4442-104e.kicad_mod",
    "mcp4442-104e.glb",
    "mcp4442-104e.step",
    "mcp4442-104e.lbr",
    "docs/hero.png",
    "docs/mcp4442-104e-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mcp4442-104e-hero.glb",
    "mcp4442-104e-hero.overlay.json",
    "mcp4442-104e-etched.glb"
  ],
  "component": {
    "mpn": "MCP4442-104E",
    "manufacturer": "Microchip Tech",
    "package": "TSSOP-14",
    "pin_count": 14,
    "category": "ADC/DAC/Data Conversion",
    "subcategory": "Digital Potentiometers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/79d8b0a98303dc2487a8107cea095d17.pdf",
    "parts": {
      "symbol": "mcp4442-104e.kicad_sym",
      "footprint": "mcp4442-104e.kicad_mod",
      "model_3d": "mcp4442-104e-hero.glb",
      "model_3d_plain": "mcp4442-104e-etched.glb",
      "model_3d_step": "mcp4442-104e-etched.step",
      "model_3d_step_plain": "mcp4442-104e.step",
      "lbr": "mcp4442-104e.lbr"
    },
    "distributor_links": {
      "lcsc": "C637102"
    },
    "distributor_check": {
      "checked_at": "2026-10-24T03:32:56Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "P3W",
        "type": "passive",
        "description": "Potentiometer 3 wiper terminal; it has no polarity relative to terminals A or B, can carry positive or negative current, and must stay between VSS and VDD."
      },
      {
        "number": "2",
        "name": "P3B",
        "type": "passive",
        "description": "Potentiometer 3 terminal B, the fixed zero-scale connection (wiper 0x00); it can carry positive or negative current and must stay between VSS and VDD."
      },
      {
        "number": "3",
        "name": "HVC/A0",
        "type": "input",
        "description": "I2C address bit A0, latched at POR/BOR, and the High Voltage Command pin, where a VIHH voltage selects a high-voltage command; the input is high-voltage tolerant with Schmitt trigger."
      },
      {
        "number": "4",
        "name": "SCL",
        "type": "input",
        "description": "I2C serial clock input for a slave device, accepting only external clock signals; the input is high-voltage tolerant with Schmitt trigger."
      },
      {
        "number": "5",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C serial data I/O, implemented as an open-drain N-channel driver; the input is high-voltage tolerant with Schmitt trigger."
      },
      {
        "number": "6",
        "name": "VSS",
        "type": "power_in",
        "description": "Device ground reference."
      },
      {
        "number": "7",
        "name": "P1B",
        "type": "passive",
        "description": "Potentiometer 1 terminal B, the fixed zero-scale connection (wiper 0x00); it can carry positive or negative current and must stay between VSS and VDD."
      },
      {
        "number": "8",
        "name": "P1W",
        "type": "passive",
        "description": "Potentiometer 1 wiper terminal; it can carry positive or negative current and must stay between VSS and VDD."
      },
      {
        "number": "9",
        "name": "P0W",
        "type": "passive",
        "description": "Potentiometer 0 wiper terminal; it can carry positive or negative current and must stay between VSS and VDD."
      },
      {
        "number": "10",
        "name": "P0B",
        "type": "passive",
        "description": "Potentiometer 0 terminal B, the fixed zero-scale connection (wiper 0x00); it can carry positive or negative current and must stay between VSS and VDD."
      },
      {
        "number": "11",
        "name": "A1",
        "type": "input",
        "description": "I2C address bit A1 which, together with A0, allows up to 4 MCP44XX devices on one I2C bus; the input is high-voltage tolerant with Schmitt trigger."
      },
      {
        "number": "12",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive power supply input, referenced to VSS; device electrical performance may not meet the datasheet specifications while VDD is below Vmin (2.7V)."
      },
      {
        "number": "13",
        "name": "P2B",
        "type": "passive",
        "description": "Potentiometer 2 terminal B, the fixed zero-scale connection (wiper 0x00); it can carry positive or negative current and must stay between VSS and VDD."
      },
      {
        "number": "14",
        "name": "P2W",
        "type": "passive",
        "description": "Potentiometer 2 wiper terminal; it can carry positive or negative current and must stay between VSS and VDD."
      }
    ],
    "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 14L pin numbers come from the family-wide Table 3-1 (MCP444X/446X), which lists a TSSOP 14L colu; The 14-lead pinout has no terminal A pins, WP or RESET pins, which fits the rheostat (MCP44X2/MCP444; Pin table text (page 39) is garbled in the extracted text. The 14L column was read by aligning the T"
        ],
        "pages_sent": 20,
        "cost_usd": 0.0894,
        "at": "2026-10-24T03:32:36"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/79d8b0a98303dc2487a8107cea095d17.pdf",
        "pages": 100,
        "sha256": "c64d93992e9b7079",
        "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": "mcp4442-104e.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.0
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "3ee5786aae56190997aa793ba3cfc003fd616782770e29719b4562f012982245",
        "checked": "2026-10-24",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mcp4442-104e-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5.0,
          1.0
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "bb048bcb0dd9436d1fde529503c0b19e5bbae94d1d3db5ff4cb6e1fc26bc4c28",
        "checked": "2026-10-24",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}