MCP4441-103E

{
  "schema_version": 1,
  "type": "component",
  "slug": "mcp4441-103e",
  "title": "MCP4441-103E",
  "brief": "Microchip Tech Digital Potentiometers, QFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "adc-dac-data conversion",
    "mcp4441-103e",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MCP4441-103E",
    "manufacturer": "Microchip Tech",
    "package": "QFN-20-EP(4x4)",
    "pin_count": 21,
    "category": "ADC/DAC/Data Conversion",
    "subcategory": "Digital Potentiometers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/79d8b0a98303dc2487a8107cea095d17.pdf",
    "parts": {
      "symbol": "mcp4441-103e.kicad_sym",
      "footprint": "mcp4441-103e.kicad_mod",
      "model_3d": "mcp4441-103e-hero.glb",
      "model_3d_plain": "mcp4441-103e-etched.glb",
      "model_3d_step": "mcp4441-103e-etched.step",
      "model_3d_step_plain": "mcp4441-103e.step",
      "lbr": "mcp4441-103e.lbr"
    },
    "distributor_links": {
      "lcsc": "C637735"
    },
    "distributor_check": {
      "checked_at": "2026-10-30T15:38:04Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "P3B",
        "type": "passive",
        "description": "Potentiometer 3 terminal B is the fixed connection to the zero-scale wiper value (0x00); its voltage must be between VSS and VDD and it can carry positive and negative current."
      },
      {
        "number": "2",
        "name": "HVC/A0",
        "type": "input",
        "description": "Address 0 input for the I2C interface, latched at POR/BOR, and the High Voltage Command pin (a VIHH level selects a high-voltage command); the input is high-voltage tolerant with a Schmitt trigger."
      },
      {
        "number": "3",
        "name": "SCL",
        "type": "input",
        "description": "I2C serial clock input connected to the host controller; the device is a slave that accepts only external clock signals, with a high-voltage tolerant Schmitt-trigger input."
      },
      {
        "number": "4",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C serial data I/O implemented as an open-drain N-channel driver, with a high-voltage tolerant Schmitt-trigger input."
      },
      {
        "number": "5",
        "name": "VSS",
        "type": "power_in",
        "description": "Device ground reference; the VDD supply and all terminal voltages are referenced to this pin."
      },
      {
        "number": "6",
        "name": "P1B",
        "type": "passive",
        "description": "Potentiometer 1 terminal B is the fixed connection to the zero-scale wiper value (0x00); its voltage must be between VSS and VDD and it can carry positive and negative current."
      },
      {
        "number": "7",
        "name": "P1W",
        "type": "passive",
        "description": "Potentiometer 1 wiper terminal is the adjustable tap of the digital potentiometer; its voltage must be between VSS and VDD and it can carry positive and negative current."
      },
      {
        "number": "8",
        "name": "P1A",
        "type": "passive",
        "description": "Potentiometer 1 terminal A is connected to the full-scale wiper value (0x100 for 8-bit or 0x80 for 7-bit devices); its voltage must be between VSS and VDD and it can carry positive and negative current."
      },
      {
        "number": "9",
        "name": "P0A",
        "type": "passive",
        "description": "Potentiometer 0 terminal A is connected to the full-scale wiper value (0x100 for 8-bit or 0x80 for 7-bit devices); its voltage must be between VSS and VDD and it can carry positive and negative current."
      },
      {
        "number": "10",
        "name": "P0W",
        "type": "passive",
        "description": "Potentiometer 0 wiper terminal is the adjustable tap of the digital potentiometer; its voltage must be between VSS and VDD and it can carry positive and negative current."
      },
      {
        "number": "11",
        "name": "P0B",
        "type": "passive",
        "description": "Potentiometer 0 terminal B is the fixed connection to the zero-scale wiper value (0x00); its voltage must be between VSS and VDD and it can carry positive and negative current."
      },
      {
        "number": "12",
        "name": "WP",
        "type": "input",
        "description": "Hardware EEPROM write-protect input that forces the nonvolatile memory to be write protected; it is a high-voltage tolerant input with a Schmitt trigger."
      },
      {
        "number": "13",
        "name": "RESET",
        "type": "input",
        "description": "Hardware reset input that forces the device into the POR/BOR state; it is a high-voltage tolerant Schmitt-trigger input with a weak pull-up."
      },
      {
        "number": "14",
        "name": "A1",
        "type": "input",
        "description": "I2C Address 1 input which, together with A0, sets the device address so up to 4 MCP44XX devices can share one bus; it is a high-voltage tolerant input whose smart pull-up shuts off while the pin is forced low."
      },
      {
        "number": "15",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive power supply input referenced to VSS; electrical performance may not meet the datasheet specifications while VDD is below 2.7V (Vmin)."
      },
      {
        "number": "16",
        "name": "P2B",
        "type": "passive",
        "description": "Potentiometer 2 terminal B is the fixed connection to the zero-scale wiper value (0x00); its voltage must be between VSS and VDD and it can carry positive and negative current."
      },
      {
        "number": "17",
        "name": "P2W",
        "type": "passive",
        "description": "Potentiometer 2 wiper terminal is the adjustable tap of the digital potentiometer; its voltage must be between VSS and VDD and it can carry positive and negative current."
      },
      {
        "number": "18",
        "name": "P2A",
        "type": "passive",
        "description": "Potentiometer 2 terminal A is connected to the full-scale wiper value (0x100 for 8-bit or 0x80 for 7-bit devices); its voltage must be between VSS and VDD and it can carry positive and negative current."
      },
      {
        "number": "19",
        "name": "P3A",
        "type": "passive",
        "description": "Potentiometer 3 terminal A is connected to the full-scale wiper value (0x100 for 8-bit or 0x80 for 7-bit devices); its voltage must be between VSS and VDD and it can carry positive and negative current."
      },
      {
        "number": "20",
        "name": "P3W",
        "type": "passive",
        "description": "Potentiometer 3 wiper terminal is the adjustable tap of the digital potentiometer; its voltage must be between VSS and VDD and it can carry positive and negative current."
      },
      {
        "number": "21",
        "name": "EP",
        "type": "passive",
        "description": "Exposed pad conductively connected to the die substrate; it should be tied to the same potential as VSS or left unconnected, and it can serve as a heat sink when attached to a PCB heat sink."
      }
    ],
    "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 QFN-20 (4x4) pin assignments come from the QFN 20L column of Table 3-1 on page 39 (pin descripti; The ordering text for MCP4441-103E (the suffix-to-package mapping) is not in the 20 pages provided. ; The exposed pad (pin 21) has no electrical function in the datasheet beyond being tied to VSS or lef"
        ],
        "pages_sent": 20,
        "cost_usd": 0.094,
        "at": "2026-10-30T15:37:11"
      },
      "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": 21,
        "described": 21,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "mcp4441-103e.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          4,
          4,
          0.77
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "c9476a1612023de37f27b4972110ab6ac6dc0eaf5ac48957a2e1c497650082a5",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mcp4441-103e-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
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          4,
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        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "f4eb52fcd8c5cc157deb2e06fb4c883e3b9056f2c33542ef339b0f603eb90e10",
        "checked": "2026-10-30",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "QFN-20-EP(4x4)",
      "Category": "ADC/DAC/Data Conversion",
      "Pins": "21"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c64d93992e9b7079ca1a1131423ea4cead5314d96106eda6e68be6b56f9e05e6",
      "rows": [
        {
          "name": "Resistance RAB (-103 device, 10 kΩ)",
          "symbol": "RAB",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 8,
          "typ": 10,
          "max": 12,
          "conditions": "-103 devices (Note 1)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Resistance tolerance (RAB)",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "Resistance (± 20%)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Nominal resistance match",
          "symbol": "(|RABWC - RABMEAN|) / RABMEAN",
          "kind": "tolerance",
          "unit": "%",
          "min": null,
          "typ": 0.2,
          "max": 1.25,
          "conditions": "10 kΩ",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Ratiometric (wiper) resistance match",
          "symbol": "(|RBWWC - RBWMEAN|) / RBWMEAN",
          "kind": "tolerance",
          "unit": "%",
          "min": null,
          "typ": 0.25,
          "max": 1.5,
          "conditions": "10 kΩ",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Absolute max: voltage on VDD with respect to VSS",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.6,
          "typ": null,
          "max": 7,
          "conditions": "with respect to VSS",
          "source_page": 3,
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        },
        {
          "name": "Absolute max: voltage on HVC/A0, A1, SCL, SDA, WP, RESET",
          "symbol": "",
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          "unit": "V",
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          "typ": null,
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          "conditions": "with respect to VSS",
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          "source": "datasheet"
        },
        {
          "name": "Absolute max: voltage on PxA, PxW, PxB pins",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "with respect to VSS; printed maximum is VDD + 0.3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Absolute max: input clamp current",
          "symbol": "IIK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "VI < 0, VI > VDD, VI > VPP ON HV pins",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Absolute max: output clamp current",
          "symbol": "IOK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "VO < 0 or VO > VDD",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Absolute max: output current sunk by any output pin",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 25,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Absolute max: output current sourced by any output pin",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 25,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Absolute max: current out of VSS pin",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Absolute max: current into VDD pin",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Absolute max: current into PxA, PxW, PxB pins",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -2.5,
          "typ": null,
          "max": 2.5,
          "conditions": "",
          "source_page": 3,
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        },
        {
          "name": "Absolute max: storage temperature",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
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        },
        {
          "name": "Absolute max: ambient temperature with power applied",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Absolute max: soldering temperature of leads (10 s)",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 300,
          "conditions": "10 seconds",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Absolute max: maximum junction temperature",
          "symbol": "TJ",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 3,
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        {
          "name": "Operating temperature range",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 17,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VDD",
          "kind": "electrical",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
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        {
          "name": "Supply voltage, device operation (serial interface only)",
          "symbol": "VDD",
          "kind": "electrical",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 2.7,
          "conditions": "Serial Interface only.",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "HVC/A0, SDA, SCL, A1, WP, RESET voltage range",
          "symbol": "VHV",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 12.5,
          "conditions": "VDD ≥ 4.5V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VDD start voltage to ensure wiper reset",
          "symbol": "VBOR",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.65,
          "conditions": "RAM retention voltage (VRAM) < VBOR",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Delay after device exits reset state",
          "symbol": "TBORD",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 10,
          "max": 20,
          "conditions": "VDD > VBOR",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply current, serial interface active at 3.4 MHz",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 600,
          "conditions": "Serial Interface Active, HVC/A0 = VIH (or VIL), write all 0's to volatile Wiper 0, VDD = 5.5V, FSCL @ 3.4 MHz",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply current, serial interface active at 100 kHz",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 250,
          "conditions": "Serial Interface Active, HVC/A0 = VIH (or VIL), write all 0's to volatile Wiper 0, VDD = 5.5V, FSCL @ 100 kHz",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EE write current (write cycle, nonvolatile device)",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 575,
          "conditions": "Write Cycle (Nonvolatile device only), VDD = 5.5V, FSCL = 400 kHz, write all 0's to nonvolatile Wiper 0, SCL = VIL or VIH",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Serial interface inactive (standby) current",
          "symbol": "",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 2.5,
          "max": 5,
          "conditions": "Stop condition, SCL = SDA = VIH, Wiper = 0, VDD = 5.5V, HVC/A0 = VIH",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Maximum current through terminal A",
          "symbol": "IW",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 2.5,
          "conditions": "Terminal A IAW, W = Full Scale (FS)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum current through terminal B",
          "symbol": "IW",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 2.5,
          "conditions": "Terminal B IBW, W = Zero Scale (ZS)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum current through terminal W",
          "symbol": "IW",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 2.5,
          "conditions": "Terminal W IAW (W = FS) or IBW (W = ZS)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum RAB current (10 kΩ)",
          "symbol": "IAB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.688,
          "conditions": "VB = 0V, VA = 5.5V, RAB(MIN) = 8000Ω",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Full scale error (MCP44X1, 7-bit)",
          "symbol": "VWFSE",
          "kind": "electrical",
          "unit": "LSb",
          "min": -2,
          "typ": -0.1,
          "max": null,
          "conditions": "10 kΩ 7-bit, 3.0V ≤ VDD ≤ 5.5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Zero scale error (MCP44X1, 7-bit)",
          "symbol": "VWZSE",
          "kind": "electrical",
          "unit": "LSb",
          "min": null,
          "typ": 0.1,
          "max": 2,
          "conditions": "10 kΩ 7-bit, 3.0V ≤ VDD ≤ 5.5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Potentiometer integral non-linearity (7-bit)",
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          "kind": "electrical",
          "unit": "LSb",
          "min": -0.5,
          "typ": 0.25,
          "max": 0.5,
          "conditions": "7-bit",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Potentiometer differential non-linearity (7-bit)",
          "symbol": "DNL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.25,
          "typ": 0.125,
          "max": 0.25,
          "conditions": "7-bit",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Rheostat integral non-linearity, 5.5V (10 kΩ, 7-bit)",
          "symbol": "R-INL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -1.125,
          "typ": 0.5,
          "max": 1.125,
          "conditions": "10 kΩ 7-bit 5.5V, IW = 450 µA",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Rheostat integral non-linearity, 3.0V (10 kΩ, 7-bit)",
          "symbol": "R-INL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -4,
          "typ": 2.5,
          "max": 4,
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