MCP45HV31-104E

{
  "schema_version": 1,
  "type": "component",
  "slug": "mcp45hv31-104e",
  "title": "MCP45HV31-104E",
  "brief": "Microchip Tech Digital Potentiometers, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
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    "adc-dac-data conversion",
    "mcp45hv31-104e",
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  "component": {
    "mpn": "MCP45HV31-104E",
    "manufacturer": "Microchip Tech",
    "package": "TSSOP-14",
    "pin_count": 14,
    "category": "ADC/DAC/Data Conversion",
    "subcategory": "Digital Potentiometers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/556468123355b07f5b301e0b9dfefe39.pdf",
    "parts": {
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      "lbr": "mcp45hv31-104e.lbr"
    },
    "distributor_links": {
      "lcsc": "C637114"
    },
    "distributor_check": {
      "checked_at": "2026-10-28T21:39:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "VL",
        "type": "power_in",
        "description": "Positive digital power supply input, referenced to DGND, specified from 1.8V to 5.5V; a decoupling capacitor to DGND is recommended for maximum performance."
      },
      {
        "number": "2",
        "name": "SCL",
        "type": "input",
        "description": "I2C serial clock input (Schmitt trigger); the device is an I2C slave, so this pin is input-only."
      },
      {
        "number": "3",
        "name": "A1",
        "type": "input",
        "description": "I2C address bit 1 input (Schmitt trigger), latched at POR/BOR; together with A0 it allows up to four devices on one I2C bus."
      },
      {
        "number": "4",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C serial data pin, an open-drain N-channel driver that lets the host read and write the Wiper and TCON registers."
      },
      {
        "number": "5",
        "name": "A0",
        "type": "input",
        "description": "I2C address bit 0 input (Schmitt trigger), latched at POR/BOR; together with A1 it completes the device address."
      },
      {
        "number": "6",
        "name": "WLAT",
        "type": "input",
        "description": "Wiper latch enable: when Low, the received I2C value is transferred from the shift buffer to the Wiper register; when High, the value is held in the shift buffer (SPBUF)."
      },
      {
        "number": "7",
        "name": "NC",
        "type": "unconnected",
        "description": "Not internally connected to the die; to reduce noise coupling, connect to DGND or VL."
      },
      {
        "number": "8",
        "name": "SHDN",
        "type": "input",
        "description": "Shutdown input (Schmitt trigger) that forces the resistor network terminals into the hardware shutdown state."
      },
      {
        "number": "9",
        "name": "DGND",
        "type": "power_in",
        "description": "Digital ground reference for the device; VL and the level-shifted digital signals are referenced to this pin."
      },
      {
        "number": "10",
        "name": "V-",
        "type": "power_in",
        "description": "Analog negative potential supply; must be lower than or equal to the DGND pin potential."
      },
      {
        "number": "11",
        "name": "P0B",
        "type": "passive",
        "description": "Potentiometer 0 Terminal B, the zero-scale wiper connection; the voltage must be between V- and V+ and it can carry positive or negative current."
      },
      {
        "number": "12",
        "name": "P0W",
        "type": "passive",
        "description": "Potentiometer 0 wiper (W) terminal; the voltage must be between V- and V+ and it can carry positive or negative current."
      },
      {
        "number": "13",
        "name": "P0A",
        "type": "passive",
        "description": "Potentiometer 0 Terminal A, the full-scale wiper connection; the voltage must be between V- and V+ and it can carry positive or negative current."
      },
      {
        "number": "14",
        "name": "V+",
        "type": "power_in",
        "description": "Analog positive potential supply, which must be at a higher potential than V-; analog operation is specified from 10V to 36V with a maximum of +36V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
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        "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 TSSOP-14 pin table on page 24 is garbled in the extracted text. Pin 1 (VL) was read from the fir; The datasheet specifies the analog supply range as 10V to 36V and the digital range as 1.8V to 5.5V."
        ],
        "pages_sent": 21,
        "cost_usd": 0.0901,
        "at": "2026-10-28T21:39:30"
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      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/556468123355b07f5b301e0b9dfefe39.pdf",
        "pages": 100,
        "sha256": "ab854db7c83242c1",
        "source_tier": "mfr"
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      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 14,
        "described": 14,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
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      "footprint": "viewers/footprint.html"
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        "extents_mm": [
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        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
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  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "TSSOP-14",
      "Category": "ADC/DAC/Data Conversion",
      "Pins": "14"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
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      "rows": [
        {
          "name": "Digital Positive Supply Voltage (VL)",
          "symbol": "VL",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 2.7,
          "typ": null,
          "max": 5.5,
          "conditions": "With respect to DGND (Note 4)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Digital Positive Supply Voltage (VL), 1.8V operation",
          "symbol": "VL",
          "kind": "recommended_operating",
          "unit": "V",
          "min": 1.8,
          "typ": null,
          "max": 5.5,
          "conditions": "VL ≥ V- + 2.7V (Note 1, Note 4)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Digital to Analog Level Shifter Operational Voltage",
          "symbol": "VLS",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 2.3,
          "conditions": "VL to V- voltage",
          "source_page": 4,
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        },
        {
          "name": "Analog Positive Supply Voltage (V+)",
          "symbol": "V+",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 36,
          "conditions": "With respect to V- (Note 4)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Analog Negative Supply Voltage (V-)",
          "symbol": "V-",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0,
          "conditions": "With respect to DGND and with VL = 1.8V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Resistor Network Supply Voltage",
          "symbol": "VRN",
          "kind": "recommended_operating",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 36,
          "conditions": "Delta voltage between V+ and V- (Note 4)",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "VL Start Voltage to ensure Wiper Reset",
          "symbol": "VDPOR",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.8,
          "conditions": "With respect to DGND, V+ > 6.0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "V+ Voltage to ensure Wiper Reset",
          "symbol": "VAPOR",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 6,
          "conditions": "With respect to V-, VL = 0V",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Delay after device exits the Reset state",
          "symbol": "TBORD",
          "kind": "timing",
          "unit": "µs",
          "min": null,
          "typ": 10,
          "max": 20,
          "conditions": "VL > VBOR",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply Current, serial interface active",
          "symbol": "IDDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 45,
          "max": 650,
          "conditions": "Serial Interface Active, Write all 0's to Volatile Wiper 0 (address 0h), VL = 5.5V, FSCL = 3.4 MHz, V- = DGND",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply Current, serial interface inactive",
          "symbol": "IDDD",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": 4,
          "max": 7,
          "conditions": "Serial Interface Inactive, VL = 5.5V, SCL = VIH, Wiper = 0, V- = DGND",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Supply Current, analog",
          "symbol": "IDDA",
          "kind": "electrical",
          "unit": "µA",
          "min": null,
          "typ": null,
          "max": 5,
          "conditions": "Current V+ to V-, PxA = PxB = PxW, DGND = V- +(V+/2)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Resistance RAB (-104 device)",
          "symbol": "RAB",
          "kind": "electrical",
          "unit": "kΩ",
          "min": 80,
          "typ": 100,
          "max": 120,
          "conditions": "-104 devices, V+/V- = 10V to 36V",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "RAB resistance tolerance",
          "symbol": "RAB",
          "kind": "tolerance",
          "unit": "%",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "Resistance (± 20%) as printed for RAB",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "RAB Current (-104 device)",
          "symbol": "IAB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.45,
          "conditions": "-104 devices, 36V / RAB(MIN), V- = -18V, V+ = +18V (Note 9)",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Wiper Resistance",
          "symbol": "RW",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 75,
          "max": 170,
          "conditions": "IW = 1 mA V+ = +18V, V- = -18V, code = 00h, PxA = floating, PxB = V-",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Wiper Resistance",
          "symbol": "RW",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 145,
          "max": 200,
          "conditions": "IW = 1 mA V+ = +5.0V, V- = -5.0V, code = 00h, PxA = floating, PxB = V- (Note 2)",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Terminal Current (A, B, Wiper)",
          "symbol": "IT, IW",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 6.5,
          "conditions": "-104 devices IBW(W ≠ ZS) and IAW(W ≠ FS)",
          "source_page": 6,
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        {
          "name": "Terminal Current (A, B, Wiper), zero/full scale",
          "symbol": "IT, IW",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 36,
          "conditions": "IBW(W = ZS), or IAW(W = FS)",
          "source_page": 6,
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        },
        {
          "name": "Full Scale Error (Potentiometer), 7-bit, 100 k",
          "symbol": "VWFSE",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.85,
          "typ": null,
          "max": null,
          "conditions": "7-bit, VAB = 20V to 36V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Full Scale Error (Potentiometer), 7-bit, 100 k",
          "symbol": "VWFSE",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.975,
          "typ": null,
          "max": null,
          "conditions": "7-bit, VAB = 10V to 36V",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Zero Scale Error (Potentiometer), 7-bit, 100 k",
          "symbol": "VWZSE",
          "kind": "electrical",
          "unit": "LSb",
          "min": null,
          "typ": null,
          "max": 0.3,
          "conditions": "7-bit, VAB = 20V to 36V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Zero Scale Error (Potentiometer), 7-bit, 100 k",
          "symbol": "VWZSE",
          "kind": "electrical",
          "unit": "LSb",
          "min": null,
          "typ": null,
          "max": 0.475,
          "conditions": "7-bit, VAB = 10V to 36V",
          "source_page": 8,
          "source": "datasheet"
        },
        {
          "name": "Potentiometer Integral Nonlinearity, 7-bit, 100 k",
          "symbol": "P-INL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -1,
          "typ": 0.5,
          "max": 1,
          "conditions": "7-bit, VAB = 10V to 36V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Potentiometer Differential Nonlinearity, 7-bit, 100 k",
          "symbol": "P-DNL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.125,
          "typ": 0.1,
          "max": 0.125,
          "conditions": "7-bit, VAB = 10V to 36V",
          "source_page": 9,
          "source": "datasheet"
        },
        {
          "name": "Rheostat Integral Nonlinearity, 7-bit, 100 k",
          "symbol": "R-INL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.5,
          "typ": null,
          "max": 0.5,
          "conditions": "7-bit, IW = 300 µA, (V+ - V-) = 36V (Note 2)",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Rheostat Integral Nonlinearity, 7-bit, 100 k",
          "symbol": "R-INL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.6,
          "typ": null,
          "max": 0.6,
          "conditions": "7-bit, IW = 83 µA, (V+ - V-) = 10V",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Rheostat Differential Nonlinearity, 7-bit, 100 k",
          "symbol": "R-DNL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.25,
          "typ": null,
          "max": 0.25,
          "conditions": "7-bit, IW = 300 µA, (V+ - V-) = 36V (Note 2)",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Sensitivity, 7-bit",
          "symbol": "PSS",
          "kind": "electrical",
          "unit": "%/%",
          "min": null,
          "typ": 0.0015,
          "max": 0.0035,
          "conditions": "7-bit, VL = 2.7V to 5.5V, V+ = 18V, V- = -18V, Code = 3Fh",
          "source_page": 14,
          "source": "datasheet"
        },
        {
          "name": "Input Leakage Current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "uA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VIN = VL and VIN = DGND",
          "source_page": 13,
          "source": "datasheet"
        },
        {
          "name": "I2C clock frequency, High Speed 3.4 MHz mode",
          "symbol": "FSCL",
          "kind": "timing",
          "unit": "MHz",
          "min": 0,
          "typ": null,
          "max": 3.4,
          "conditions": "Cb = 100 pF, 4.5V ≤ VL ≤ 5.5V",
          "source_page": 17,
          "source": "datasheet"
        },
        {
          "name": "Specified Temperature Range",
          "symbol": "TA",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -40,
          "typ": null,
          "max": 125,
          "conditions": "Extended temperature grade (E)",
          "source_page": 21,
          "source": "datasheet"
        },
        {
          "name": "Voltage on V- with respect to DGND",
          "symbol": "V-",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -40,
          "typ": null,
          "max": 0.6,
          "conditions": "Printed as DGND + 0.6V max to -40.0V min",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Voltage on V+ with respect to DGND",
          "symbol": "V+",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 40,
          "conditions": "Printed as DGND - 0.3V to 40.0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Voltage on V+ with respect to V-",
          "symbol": "V+",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": 40,
          "conditions": "Printed as DGND - 0.3V to 40.0V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Voltage on VL with respect to V+",
          "symbol": "VL",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -40,
          "typ": null,
          "max": -0.6,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Voltage on VL with respect to V-",
          "symbol": "VL",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.6,
          "typ": null,
          "max": 40,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Voltage on VL with respect to DGND",
          "symbol": "VL",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.6,
          "typ": null,
          "max": 7,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Voltage on SCL, SDA, A0, A1, WLAT, SHDN with respect to DGND",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.6,
          "typ": null,
          "max": null,
          "conditions": "Upper limit VL + 0.6V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Voltage on PxA, PxW, PxB with respect to V-",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "V",
          "min": -0.3,
          "typ": null,
          "max": null,
          "conditions": "Upper limit V+ + 0.3V",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Input clamp current",
          "symbol": "IIK",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "VI < 0, VI > VL, VI > VPP on HV pins",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum current out of DGND pin",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
          "conditions": "",
          "source_page": 3,
          "source": "datasheet"
        },
        {
          "name": "Maximum current into VL pin",
          "symbol": "",
          "kind": "absolute_maximum",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 100,
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