MCP4651-503E

{
  "schema_version": 1,
  "type": "component",
  "slug": "mcp4651-503e",
  "title": "MCP4651-503E",
  "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": [
    "component",
    "data converters",
    "mcp4651-503e",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "MCP4651-503E",
    "manufacturer": "Microchip Tech",
    "package": "TSSOP-14",
    "pin_count": 14,
    "category": "Data Converters",
    "subcategory": "Digital Potentiometers",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/119d1f868bb0428d90f58d0a45154443.pdf",
    "parts": {
      "symbol": "mcp4651-503e.kicad_sym",
      "footprint": "mcp4651-503e.kicad_mod",
      "model_3d": "mcp4651-503e-hero.glb",
      "model_3d_plain": "mcp4651-503e-etched.glb",
      "model_3d_step": "mcp4651-503e-etched.step",
      "model_3d_step_plain": "mcp4651-503e.step",
      "lbr": "mcp4651-503e.lbr"
    },
    "distributor_links": {
      "lcsc": "C148010"
    },
    "distributor_check": {
      "checked_at": "2026-10-23T03:25:47Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "no match"
      },
      "mouser": {
        "pn": null,
        "status": "no match"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "HVC/A0",
        "type": "input",
        "description": "High-voltage tolerant (up to 12.5V) Schmitt-trigger input with smart pull-up that latches the Address 0 bit at POR/BOR and, at VIHH, marks an I2C command as a High Voltage command."
      },
      {
        "number": "2",
        "name": "SCL",
        "type": "input",
        "description": "I2C serial clock input from the host controller; the device is a slave, so it accepts only external clock signals."
      },
      {
        "number": "3",
        "name": "SDA",
        "type": "bidirectional",
        "description": "I2C serial data input/output with an open-drain N-channel driver, connected to the host controller SDA."
      },
      {
        "number": "4",
        "name": "VSS",
        "type": "power_in",
        "description": "Device ground reference."
      },
      {
        "number": "5",
        "name": "P1B",
        "type": "passive",
        "description": "Potentiometer 1 terminal B, the fixed zero-scale connection (wiper value 0x00); its voltage must be between VSS and VDD."
      },
      {
        "number": "6",
        "name": "P1W",
        "type": "passive",
        "description": "Potentiometer 1 wiper terminal, the adjustable terminal; its voltage must be between VSS and VDD."
      },
      {
        "number": "7",
        "name": "P1A",
        "type": "passive",
        "description": "Potentiometer 1 terminal A, the fixed full-scale connection (0x100 for 8-bit devices); its voltage must be between VSS and VDD."
      },
      {
        "number": "8",
        "name": "P0A",
        "type": "passive",
        "description": "Potentiometer 0 terminal A, the fixed full-scale connection (0x100 for 8-bit devices); its voltage must be between VSS and VDD."
      },
      {
        "number": "9",
        "name": "P0W",
        "type": "passive",
        "description": "Potentiometer 0 wiper terminal, the adjustable terminal; its voltage must be between VSS and VDD."
      },
      {
        "number": "10",
        "name": "P0B",
        "type": "passive",
        "description": "Potentiometer 0 terminal B, the fixed zero-scale connection (wiper value 0x00); its voltage must be between VSS and VDD."
      },
      {
        "number": "11",
        "name": "NC",
        "type": "unconnected",
        "description": "No connection per the pinout table; the pin description says it should be connected to VDD or VSS."
      },
      {
        "number": "12",
        "name": "A2",
        "type": "input",
        "description": "High-voltage tolerant Schmitt-trigger input with smart pull-up for I2C Address 2, which with A1 and A0 allows up to eight devices on one bus."
      },
      {
        "number": "13",
        "name": "A1",
        "type": "input",
        "description": "High-voltage tolerant Schmitt-trigger input with smart pull-up for I2C Address 1, which with A2 and A0 allows up to eight devices on one bus."
      },
      {
        "number": "14",
        "name": "VDD",
        "type": "power_in",
        "description": "Positive power supply input relative to VSS; device operation 1.8V to 5.5V, characteristics specified 2.7V to 5.5V."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [
          "extractor flagged: Pin 11 (NC) is listed as 'No Connection' in Table 3-1, but Section 3.11 says NC pins should be conne; The pin table's 14L column was identified by position in the garbled header (Single Rheo/Pot 8L, Dua"
        ],
        "pages_sent": 18,
        "cost_usd": 0.1288,
        "at": "2026-10-23T03:25:23"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/119d1f868bb0428d90f58d0a45154443.pdf",
        "pages": 102,
        "sha256": "ee77464c39584a73",
        "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": "mcp4651-503e.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "3ee5786aae56190997aa793ba3cfc003fd616782770e29719b4562f012982245",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "mcp4651-503e-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.4,
          5,
          1
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "105cf6475194318a07aa6bae718efc09e8991f115b0dc177f7e27ea373b92bb8",
        "checked": "2026-10-23",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Microchip Tech",
      "Package": "TSSOP-14",
      "Category": "Data Converters",
      "Pins": "14"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "ee77464c39584a7313b41fafe53dddc3975cf98d85911d19da0c6a5d58d1bda8",
      "rows": [
        {
          "name": "Nominal resistance RAB (-503 devices)",
          "symbol": "RAB",
          "kind": "tolerance",
          "unit": "kΩ",
          "min": 40,
          "typ": 50,
          "max": 60,
          "conditions": "-503 devices (Note 1), ±20%",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Resistance tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -20,
          "typ": null,
          "max": 20,
          "conditions": "RAB, -503 devices",
          "source_page": 5,
          "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",
          "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": "electrical",
          "unit": "µs",
          "min": null,
          "typ": 10,
          "max": 20,
          "conditions": "VDD > VBOR",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply Current, serial 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), write all 0's to Volatile Wiper 0, VDD = 5.5V, FSCL = 3.4 MHz",
          "source_page": 4,
          "source": "datasheet"
        },
        {
          "name": "Supply Current, serial active 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": "Supply Current, serial inactive",
          "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": "Wiper Resistance",
          "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"
        },
        {
          "name": "Wiper Resistance",
          "symbol": "RW",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": 75,
          "max": 300,
          "conditions": "VDD = 2.7 V, IW = 2.0 mA, code = 00h",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Nominal Resistance Match (MCP46X1)",
          "symbol": "|RAB0-RAB1|/RAB",
          "kind": "electrical",
          "unit": "%",
          "min": null,
          "typ": 0.2,
          "max": 1.25,
          "conditions": "MCP46X1 devices only",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Full-Scale Error 50k 8-bit",
          "symbol": "VWFSE",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.8,
          "typ": -0.1,
          "max": null,
          "conditions": "50 k 8-bit 3.0V ≤ VDD ≤ 5.5V, MCP4XX1 only",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Zero-Scale Error 50k 8-bit",
          "symbol": "VWZSE",
          "kind": "electrical",
          "unit": "LSb",
          "min": null,
          "typ": 0.1,
          "max": 0.8,
          "conditions": "50 k 8-bit 3.0V ≤ VDD ≤ 5.5V, MCP4XX1 only",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Potentiometer INL 8-bit",
          "symbol": "INL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -1,
          "typ": 0.5,
          "max": 1,
          "conditions": "8-bit 3.0V ≤ VDD ≤ 5.5V, MCP4XX1 devices only (Note 2)",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Potentiometer DNL 8-bit",
          "symbol": "DNL",
          "kind": "electrical",
          "unit": "LSb",
          "min": -0.5,
          "typ": 0.25,
          "max": 0.5,
          "conditions": "8-bit 3.0V ≤ VDD ≤ 5.5V, MCP4XX1 devices only (Note 2)",
          "source_page": 7,
          "source": "datasheet"
        },
        {
          "name": "Maximum current through Terminal A",
          "symbol": "IT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 2.5,
          "conditions": "Terminal A IAW, W = Full-Scale",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum current through Terminal B",
          "symbol": "IT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 2.5,
          "conditions": "Terminal B IBW, W = Zero Scale",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum current through Terminal W",
          "symbol": "IT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 2.5,
          "conditions": "Terminal W IAW or IBW, W = FS or ZS",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Maximum current A to B",
          "symbol": "IAB",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 0.138,
          "conditions": "VB = 0V, VA = 5.5V, RAB(MIN) = 40000",
          "source_page": 6,
          "source": "datasheet"
        },
        {
          "name": "Resistor Terminal Input Voltage Range",
          "symbol": "VA,VW,VB",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": null,
          "conditions": "Vss to VDD, Note 5, Note 6",
          "source_page": 5,
          "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"
        },
        {
          "name": "Nominal Resistance Tempco",
          "symbol": "ΔRAB/ΔT",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "min": null,
          "typ": 100,
          "max": null,
          "conditions": "TA = -40°C to +85°C",
          "source_page": 5,
          "source": "datasheet"
        },
        {
          "name": "Nominal Resistance Tempco",
          "symbol": "ΔRAB/ΔT",
          "kind": "temperature_coefficient",
          "unit": "ppm/°C",
          "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": "Bandwidth -3 dB 50k 8-bit",
          "symbol": "BW",
          "kind": "electrical",
          "unit": "kHz",
          "min": null,
          "typ": 200,
          "max": null,
          "conditions": "50 k 8-bit Code = 80h, load = 30 pF",
          "source_page": 8,
          "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": 10,
          "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": 10,
          "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": 10,
          "source": "datasheet"
        },
        {
          "name": "Schmitt Trigger High Input Threshold (except SDA/SCL), 2.7V-5.5V",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 0.45,
          "typ": null,
          "max": null,
          "conditions": "min = 0.45 VDD, all inputs except SDA and SCL, 2.7V ≤ VDD ≤ 5.5V",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Schmitt Trigger High Input Threshold (except SDA/SCL), 1.8V-2.7V",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 0.5,
          "typ": null,
          "max": null,
          "conditions": "min = 0.5 VDD, 1.8V ≤ VDD ≤ 2.7V",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Schmitt Trigger High Input Threshold SDA/SCL",
          "symbol": "VIH",
          "kind": "electrical",
          "unit": "V",
          "min": 0.7,
          "typ": null,
          "max": 12.5,
          "conditions": "min = 0.7 VDD, max VMAX",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Schmitt Trigger Low Input Threshold (except SDA/SCL)",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 0.2,
          "conditions": "max = 0.2 VDD, all inputs except SDA and SCL",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Schmitt Trigger Low Input Threshold SDA/SCL",
          "symbol": "VIL",
          "kind": "electrical",
          "unit": "V",
          "min": -0.5,
          "typ": null,
          "max": 0.3,
          "conditions": "max = 0.3 VDD, SDA and SCL",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "High Voltage Limit",
          "symbol": "VMAX",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 12.5,
          "conditions": "Pin can tolerate VMAX or less",
          "source_page": 11,
          "source": "datasheet"
        },
        {
          "name": "Output Low Voltage (SDA)",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 0.4,
          "conditions": "VDD ≥ 2.0V, IOL = 3 mA",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Output Low Voltage (SDA), low VDD",
          "symbol": "VOL",
          "kind": "electrical",
          "unit": "V",
          "min": 0,
          "typ": null,
          "max": 0.2,
          "conditions": "max = 0.2 VDD, VDD < 2.0V, IOL = 1 mA",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Weak Pull-up/Pull-down Current",
          "symbol": "IPU",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 1.75,
          "conditions": "Internal VDD pull-up, VIHH pull-down, VDD = 5.5V, VIHH = 12.5V",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Input Leakage Current",
          "symbol": "IIL",
          "kind": "electrical",
          "unit": "µA",
          "min": -1,
          "typ": null,
          "max": 1,
          "conditions": "VIN = VDD and VIN = VSS",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Power Supply Sensitivity",
          "symbol": "PSS",
          "kind": "electrical",
          "unit": "%/%",
          "min": null,
          "typ": 0.0015,
          "max": 0.0035,
          "conditions": "8-bit VDD = 2.7V to 5.5V, VA = 2.7V, Code = 80h (MCP45X2 and MCP46X2 only)",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Pin Capacitance",
          "symbol": "CIN, COUT",
          "kind": "electrical",
          "unit": "pF",
          "min": null,
          "typ": 10,
          "max": null,
          "conditions": "fC = 3.4 MHz",
          "source_page": 12,
          "source": "datasheet"
        },
        {
          "name": "Brown-out reset trip (typical)",
          "symbol": "",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 1.5,
          "max": null,
          "conditions": "Features list",
          "source_page": 1,
          "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",
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