component
MCP4441-103E
Public Made by Adomby adom
Microchip Tech Digital Potentiometers, QFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "mcp4441-103e",
"version": "0.1.0",
"type": "component",
"description": "Microchip Tech Digital Potentiometers, QFN-20-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"adc-dac-data conversion",
"mcp4441-103e",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
"type": "image",
"path": "docs/hero.png"
},
"files": [
"page.json",
"README.md",
"mcp4441-103e.kicad_sym",
"mcp4441-103e.kicad_mod",
"mcp4441-103e.glb",
"mcp4441-103e.step",
"mcp4441-103e.lbr",
"docs/hero.png",
"docs/mcp4441-103e-datasheet.pdf",
"viewers/symbol.html",
"viewers/footprint.html",
"mcp4441-103e-hero.glb",
"mcp4441-103e-hero.overlay.json",
"mcp4441-103e-etched.glb"
],
"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": [
4.0,
4.0,
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],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"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": [
4.0,
4.0,
0.77
],
"zmin_mm": 0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "f4eb52fcd8c5cc157deb2e06fb4c883e3b9056f2c33542ef339b0f603eb90e10",
"checked": "2026-10-30",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
}
]
}
}