MCP42100-I

{
  "slug": "mcp42100-i",
  "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",
    "data acquisition",
    "mcp42100-i",
    "factory-2.0.0",
    "extractor-text"
  ],
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "mcp42100-i.kicad_sym",
    "mcp42100-i.kicad_mod",
    "mcp42100-i.glb",
    "mcp42100-i.step",
    "mcp42100-i.lbr",
    "docs/hero.png",
    "docs/mcp42100-i-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "mcp42100-i-hero.glb",
    "mcp42100-i-hero.overlay.json",
    "mcp42100-i-etched.glb"
  ],
  "component": {
    "mpn": "MCP42100-I",
    "manufacturer": "Microchip Tech",
    "package": "TSSOP-14",
    "pin_count": 14,
    "category": "Data Acquisition",
    "subcategory": "Digital Potentiometers",
    "datasheet": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589807146411335680",
    "parts": {
      "symbol": "mcp42100-i.kicad_sym",
      "footprint": "mcp42100-i.kicad_mod",
      "model_3d": "mcp42100-i-hero.glb",
      "model_3d_plain": "mcp42100-i-etched.glb",
      "model_3d_step": "mcp42100-i-etched.step",
      "model_3d_step_plain": "mcp42100-i.step",
      "lbr": "mcp42100-i.lbr"
    },
    "distributor_links": {
      "lcsc": "C637069"
    },
    "distributor_check": {
      "checked_at": "2026-10-21T02:19:32Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "CS",
        "type": "input",
        "description": "SPI chip select; a new command is executed after it has been loaded into the shift register, and the pin has a Schmitt Trigger input."
      },
      {
        "number": "2",
        "name": "SCK",
        "type": "input",
        "description": "SPI serial clock; data is clocked into SI on the rising edge and out of SO on the falling edge, the pin is gated to CS, and it has a Schmitt Trigger input."
      },
      {
        "number": "3",
        "name": "SI",
        "type": "input",
        "description": "SPI serial data input through which the command and data bytes are clocked into the shift register, gated to CS, with a Schmitt Trigger input."
      },
      {
        "number": "4",
        "name": "VSS",
        "type": "power_in",
        "description": "Ground reference for the device."
      },
      {
        "number": "5",
        "name": "PB1",
        "type": "passive",
        "description": "Terminal B connection for potentiometer 1."
      },
      {
        "number": "6",
        "name": "PW1",
        "type": "passive",
        "description": "Wiper connection for potentiometer 1."
      },
      {
        "number": "7",
        "name": "PA1",
        "type": "passive",
        "description": "Terminal A connection for potentiometer 1."
      },
      {
        "number": "8",
        "name": "PA0",
        "type": "passive",
        "description": "Terminal A connection for potentiometer 0."
      },
      {
        "number": "9",
        "name": "PW0",
        "type": "passive",
        "description": "Wiper connection for potentiometer 0."
      },
      {
        "number": "10",
        "name": "PB0",
        "type": "passive",
        "description": "Terminal B connection for potentiometer 0."
      },
      {
        "number": "11",
        "name": "RS",
        "type": "input",
        "description": "Hardware reset that sets all potentiometers to mid-scale (code 80h) when held low for at least 150 ns; it should not be toggled low while CS is low and must not be left floating."
      },
      {
        "number": "12",
        "name": "SHDN",
        "type": "input",
        "description": "Hardware shutdown with a Schmitt Trigger input; pulling it low opens the A terminal and connects B and W for all potentiometers, it should not be toggled low while CS is low, and it must not be left floating."
      },
      {
        "number": "13",
        "name": "SO",
        "type": "output",
        "description": "SPI serial data output for daisy-chaining devices; it is a push-pull output that does not go high-impedance when CS is high and drives logic-low while CS is high."
      },
      {
        "number": "14",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive supply, specified for single supply operation from 2.7 V to 5.5 V."
      }
    ],
    "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 pin table (Table 3-2) covers the MCP42XXX in PDIP/SOIC/TSSOP and the Package Types diagram shows; The MCP42100 is the 100 kΩ dual version (MCP42XXX family). The pin table does not vary by resistance; The VDD supply range of 2.7 V to 5.5 V in the pin description comes from the Features and Descriptio"
        ],
        "pages_sent": 7,
        "cost_usd": 0.0394,
        "at": "2026-10-21T02:15:48"
      },
      "datasheet": {
        "url": "https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589807146411335680",
        "pages": 32,
        "sha256": "5a411a1df96a189e",
        "source_tier": "lcsc"
      },
      "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": "mcp42100-i.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": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mcp42100-i-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": "30172b9714a2fbd09f27c16a412f379d48e4d51d81156163b3247e654aabe804",
        "checked": "2026-10-21",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  }
}