MCP4441T-503E

{
  "schema_version": 1,
  "type": "component",
  "slug": "mcp4441t-503e",
  "title": "MCP4441T-503E",
  "brief": "Microchip Tech Digital Potentiometers, TSSOP-20. 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",
    "mcp4441t-503e",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MCP4441T-503E",
    "manufacturer": "Microchip Tech",
    "package": "TSSOP-20",
    "pin_count": 20,
    "category": "ADC/DAC/Data Conversion",
    "subcategory": "Digital Potentiometers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/79d8b0a98303dc2487a8107cea095d17.pdf",
    "parts": {
      "symbol": "mcp4441t-503e.kicad_sym",
      "footprint": "mcp4441t-503e.kicad_mod",
      "model_3d": "mcp4441t-503e-hero.glb",
      "model_3d_plain": "mcp4441t-503e-etched.glb",
      "model_3d_step": "mcp4441t-503e-etched.step",
      "model_3d_step_plain": "mcp4441t-503e.step",
      "lbr": "mcp4441t-503e.lbr"
    },
    "distributor_links": {
      "lcsc": "C627249"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T15:58:57Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "P3A",
        "type": "passive",
        "description": "Potentiometer 3 terminal A, which is the fixed Full Scale connection and must be between VSS and VDD."
      },
      {
        "number": "2",
        "name": "P3W",
        "type": "passive",
        "description": "Potentiometer 3 wiper terminal, which must be between VSS and VDD and can carry both positive and negative current."
      },
      {
        "number": "3",
        "name": "P3B",
        "type": "passive",
        "description": "Potentiometer 3 terminal B, which is the fixed Zero Scale connection and must be between VSS and VDD."
      },
      {
        "number": "4",
        "name": "HVC/A0",
        "type": "input",
        "description": "High Voltage Command and I2C Address 0 input; the A0 value is latched at POR/BOR and a high voltage (VIHH) selects High Voltage command mode."
      },
      {
        "number": "5",
        "name": "SCL",
        "type": "input",
        "description": "I2C serial clock input, which accepts only external clock signals since the device is a slave."
      },
      {
        "number": "6",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C serial data I/O, implemented as an open-drain N-channel driver."
      },
      {
        "number": "7",
        "name": "VSS",
        "type": "power_in",
        "description": "Device ground reference."
      },
      {
        "number": "8",
        "name": "P1B",
        "type": "passive",
        "description": "Potentiometer 1 terminal B, which is the fixed Zero Scale connection and must be between VSS and VDD."
      },
      {
        "number": "9",
        "name": "P1W",
        "type": "passive",
        "description": "Potentiometer 1 wiper terminal, which must be between VSS and VDD and can carry both positive and negative current."
      },
      {
        "number": "10",
        "name": "P1A",
        "type": "passive",
        "description": "Potentiometer 1 terminal A, which is the fixed Full Scale connection and must be between VSS and VDD."
      },
      {
        "number": "11",
        "name": "P0A",
        "type": "passive",
        "description": "Potentiometer 0 terminal A, which is the fixed Full Scale connection and must be between VSS and VDD."
      },
      {
        "number": "12",
        "name": "P0W",
        "type": "passive",
        "description": "Potentiometer 0 wiper terminal, which must be between VSS and VDD and can carry both positive and negative current."
      },
      {
        "number": "13",
        "name": "P0B",
        "type": "passive",
        "description": "Potentiometer 0 terminal B, which is the fixed Zero Scale connection and must be between VSS and VDD."
      },
      {
        "number": "14",
        "name": "WP",
        "type": "input",
        "description": "Hardware EEPROM Write Protect input, which forces the nonvolatile memory to be write protected."
      },
      {
        "number": "15",
        "name": "RESET",
        "type": "input",
        "description": "Hardware reset input, which forces the device into the POR/BOR state."
      },
      {
        "number": "16",
        "name": "A1",
        "type": "input",
        "description": "I2C Address 1 input, which together with A0 allows up to 4 devices on one I2C bus."
      },
      {
        "number": "17",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive power supply input relative to VSS; electrical performance may not meet specifications while VDD is below 2.7V."
      },
      {
        "number": "18",
        "name": "P2B",
        "type": "passive",
        "description": "Potentiometer 2 terminal B, which is the fixed Zero Scale connection and must be between VSS and VDD."
      },
      {
        "number": "19",
        "name": "P2W",
        "type": "passive",
        "description": "Potentiometer 2 wiper terminal, which must be between VSS and VDD and can carry both positive and negative current."
      },
      {
        "number": "20",
        "name": "P2A",
        "type": "passive",
        "description": "Potentiometer 2 terminal A, which is the fixed Full Scale connection and must be 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 datasheet text gives no explicit mapping from ordering code MCP4441T-503E to the TSSOP-20 packag; Pin 1 (P3A) is listed only as a 20L TSSOP/QFN terminal in Table 3-1. Note that TSSOP-20 pin 1 is P3A"
        ],
        "pages_sent": 20,
        "cost_usd": 0.0308,
        "at": "2026-10-28T15:58:42"
      },
      "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": 20,
        "described": 20,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
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        "file": "mcp4441t-503e.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          6.5,
          1.2
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "97339947f3a7196470ec2f1d9f9b92bb2fc2ab66ad53be0cf105192585ef3c9a",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mcp4441t-503e-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,
        "centre_offset_mm": 0,
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        "sha256": "0f37ee7e24e91308a3a26a2adf381e1d8d59c65f6ea28d63f55a247dd759fc33",
        "checked": "2026-10-28",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "TSSOP-20",
      "Category": "ADC/DAC/Data Conversion",
      "Pins": "20"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "c64d93992e9b7079ca1a1131423ea4cead5314d96106eda6e68be6b56f9e05e6",
      "rows": [
        {
          "name": "Resistance tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "Resistance (±20%), -503 devices",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Nominal resistance RAB",
          "symbol": "RAB",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 40,
          "typ": 50,
          "max": 60,
          "conditions": "-503 devices (Note 1)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Nominal resistance match 50 kΩ",
          "symbol": "(|RABWC - RABMEAN|)/RABMEAN",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.2,
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          "source_page": 5,
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        },
        {
          "name": "Wiper resistance RW",
          "symbol": "RW",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 75,
          "max": 160,
          "conditions": "VDD = 5.5 V, IW = 2.0 mA, code = 00h",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "Wiper resistance RW",
          "symbol": "RW",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 75,
          "max": 300,
          "conditions": "VDD = 2.7 V, IW = 2.0 mA, code = 00h",
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        },
        {
          "name": "Full Scale Error 50 kΩ 7-bit",
          "symbol": "VWFSE",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.5,
          "typ": -0.1,
          "max": null,
          "conditions": "50 kΩ 7-bit 3.0V ≤ VDD ≤ 5.5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Zero Scale Error 50 kΩ 7-bit",
          "symbol": "VWZSE",
          "kind": "electrical",
          "unit": "LSb",
          "min": null,
          "typ": 0.1,
          "max": 0.5,
          "conditions": "50 kΩ 7-bit 3.0V ≤ VDD ≤ 5.5V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Potentiometer integral non-linearity 7-bit",
          "symbol": "INL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.5,
          "typ": 0.25,
          "max": 0.5,
          "conditions": "7-bit, MCP44X1 devices only (Note 2)",
          "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, MCP44X1 devices only (Note 2)",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Resistance match full scale 50 kΩ",
          "symbol": "(|RBWWC - RBWMEAN|)/RBWMEAN",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.25,
          "max": 1.25,
          "conditions": "50 kΩ, code = full scale",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Maximum current through A, W or B",
          "symbol": "IW",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 2.5,
          "conditions": "Terminal A IAW, W = Full Scale (FS); also terminal B and terminal W",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum RAB current",
          "symbol": "IAB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.138,
          "conditions": "VB = 0V, VA = 5.5V, RAB(MIN) = 40000Ω",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply voltage serial interface only",
          "symbol": "VDD",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 2.7,
          "conditions": "Serial interface only",
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          "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": "Supply current serial interface active 3.4 MHz",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 600,
          "conditions": "Serial Interface Active, HVC/A0 = VIH (or VIL) (Note 11), write all 0's to volatile Wiper 0",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply current serial interface active 100 kHz",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 250,
          "conditions": "Serial Interface Active, HVC/A0 = VIH (or VIL) (Note 11), write all 0's to volatile Wiper 0, VDD = 5.5V, FSCL @ 100 kHz",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "EE write current",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 575,
          "conditions": "EE Write Current (Write Cycle), VDD = 5.5V, FSCL = 400 kHz, write all 0's to nonvolatile Wiper 0",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Serial interface inactive supply current",
          "symbol": "IDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 2.5,
          "max": 5,
          "conditions": "Serial Interface Inactive (Stop condition, SCL = SDA = VIH), Wiper = 0, VDD = 5.5V, HVC/A0 = VIH",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Output low voltage SDA",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.4,
          "conditions": "VDD ≥ 2.0V, IOL = 3 mA",
          "source_page": 10,
          "source": "datasheet"
        },
        {
          "name": "Input leakage current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VIN = VDD (all pins) and VIN = VSS (all pins except RESET)",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "RESET pulse width",
          "symbol": "tRST",
          "kind": "timing",
          "unit": "ns",
          "min": 50,
          "typ": null,
          "max": null,
          "conditions": "",
          "source_page": 12,
          "source": "datasheet"
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        {
          "name": "RESET rising edge normal mode",
          "symbol": "tRSTD",
          "kind": "timing",
          "unit": "ns",
          "min": null,
          "typ": null,
          "max": 20,
          "conditions": "Wiper driving and I2C interface operational",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "SCL clock frequency standard mode",
          "symbol": "FSCL",
          "kind": "timing",
          "unit": "kHz",
          "min": 0,
          "typ": null,
          "max": 100,
          "conditions": "Cb = 400 pF, 1.8V - 5.5V",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "SCL clock frequency fast mode",
          "symbol": "FSCL",
          "kind": "timing",
          "unit": "kHz",
          "min": 0,
          "typ": null,
          "max": 400,
          "conditions": "Cb = 400 pF, 2.7V - 5.5V",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "SCL clock frequency high-speed 3.4 MHz",
          "symbol": "FSCL",
          "kind": "timing",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 3.4,
          "conditions": "Cb = 100 pF, 4.5V - 5.5V",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "Pin capacitance",
          "symbol": "CIN, COUT",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "fC = 20 MHz",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Capacitance PA",
          "symbol": "CAW",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 75,
          "max": null,
          "conditions": "f = 1 MHz, Code = Full Scale",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Capacitance PW",
          "symbol": "CW",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 120,
          "max": null,
          "conditions": "f = 1 MHz, Code = Full Scale",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Capacitance PB",
          "symbol": "CBW",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 75,
          "max": null,
          "conditions": "f = 1 MHz, Code = Full Scale",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Bandwidth -3 dB 50 kΩ 7-bit",
          "symbol": "BW",
          "kind": "electrical",
          "unit": "kHz",
          "min": null,
          "typ": 200,
          "max": null,
          "conditions": "50 kΩ 7-bit, Code = 40h, load = 30 pF",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Nominal resistance tempco",
          "symbol": "ΔRAB/ΔT",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": 50,
          "max": null,
          "conditions": "TA = -20°C to +70°C",
          "source_page": 5,
          "source": "datasheet"
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        {
          "name": "Nominal resistance tempco",
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          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "TA = -40°C to +85°C",
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          "source": "datasheet"
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        {
          "name": "Nominal resistance tempco",
          "symbol": "ΔRAB/ΔT",
          "kind": "temperature_coefficient",
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          "min": null,
          "typ": 150,
          "max": null,
          "conditions": "TA = -40°C to +125°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Ratiometric tempco",
          "symbol": "ΔVWB/ΔT",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": 15,
          "max": null,
          "conditions": "Code = Midscale (80h or 40h)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Power supply sensitivity 7-bit",
          "symbol": "PSS",
          "kind": "voltage_coefficient",
          "unit": "%/%",
          "min": null,
          "typ": 0.0015,
          "max": 0.0035,
          "conditions": "7-bit, VDD = 2.7V to 5.5V, VA = 2.7V, Code = 40h",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "EEPROM write cycle time",
          "symbol": "tWC",
          "kind": "timing",
          "unit": "ms",
          "min": null,
          "typ": 3,
          "max": 10,
          "conditions": "",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Specified temperature range",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 17,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature range",
          "symbol": "TA",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 17,
          "source": "datasheet"
        },
        {
          "name": "Ambient temperature with power applied",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Voltage on VDD with respect to VSS",
          "symbol": "VDD",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.6,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Voltage on HVC/A0, A1, SCL, SDA, WP, RESET with respect to VSS",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
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