component
MCP4661T-503E
Public Made by Adomby adom
Microchip Tech Digital Potentiometers, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "MCP4661T-503E",
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"package": "TSSOP-14",
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"subcategory": "Digital Potentiometers",
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"checked_at": "2026-10-30T18:17:19Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": null,
"status": "no match"
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"pins": [
{
"number": "1",
"name": "HVC/A0",
"type": "input",
"description": "Address 0 input latched at POR/BOR for the I2C address, and the High Voltage command pin (a VIHH level selects a High Voltage command); digital inputs are high-voltage tolerant up to 12.5V."
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{
"number": "2",
"name": "SCL",
"type": "input",
"description": "I2C serial clock input that accepts only external clock signals from the host controller, with high-voltage tolerant Schmitt-trigger input up to 12.5V."
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{
"number": "3",
"name": "SDA",
"type": "bidirectional",
"description": "I2C serial data pin, an open-drain N-channel driver connected to the host controller SDA."
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{
"number": "4",
"name": "VSS",
"type": "power_in",
"description": "Device ground reference; all voltages on the device pins are referenced to VSS."
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{
"number": "5",
"name": "P1B",
"type": "passive",
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{
"number": "6",
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"description": "Potentiometer 1 wiper terminal, which can carry positive and negative current; its voltage must be between VSS and VDD."
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{
"number": "7",
"name": "P1A",
"type": "passive",
"description": "Potentiometer 1 terminal A, fixed connection to the full-scale wiper value (0x100 for 8-bit devices); its voltage must be between VSS and VDD."
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{
"number": "8",
"name": "P0A",
"type": "passive",
"description": "Potentiometer 0 terminal A, fixed connection to the full-scale wiper value (0x100 for 8-bit devices); its voltage must be between VSS and VDD."
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{
"number": "9",
"name": "P0W",
"type": "passive",
"description": "Potentiometer 0 wiper terminal, which can carry positive and negative current; its voltage must be between VSS and VDD."
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{
"number": "10",
"name": "P0B",
"type": "passive",
"description": "Potentiometer 0 terminal B, fixed connection to the zero-scale wiper value (0x00); its voltage must be between VSS and VDD."
},
{
"number": "11",
"name": "NC",
"type": "unconnected",
"description": "No connection; the datasheet states this pin should be connected to VDD or VSS."
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{
"number": "12",
"name": "A2",
"type": "input",
"description": "I2C Address 2 input which, with A1 and A0, selects one of up to eight devices on a single I2C bus; high-voltage tolerant input."
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{
"number": "13",
"name": "A1",
"type": "input",
"description": "I2C Address 1 input which, with A2 and A0, selects one of up to eight devices on a single I2C bus; high-voltage tolerant input."
},
{
"number": "14",
"name": "VDD",
"type": "power_in",
"description": "Positive power supply input relative to VSS; device characteristics are specified for 2.7V to 5.5V, and performance may not meet the data sheet specifications below 2.7V."
}
],
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],
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"at": "2026-10-30T18:17:13"
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"metadata": {
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"Package": "TSSOP-14",
"Category": "ADC/DAC/Data Conversion",
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"name": "Wiper Resistance (5.5V)",
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"name": "Maximum current Terminal A to B (RAB(MIN) = 40000)",
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{
"name": "Full-Scale Error (50 k, 8-bit)",
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"kind": "electrical",
"unit": "LSb",
"min": -0.8,
"typ": -0.1,
"max": null,
"conditions": "8-bit code = 100h, 50 k, 3.0V ≤ VDD ≤ 5.5V (MCP4XX1 only)",
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"source": "datasheet"
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{
"name": "Zero-Scale Error (50 k, 8-bit)",
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{
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"source": "datasheet"
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{
"name": "Potentiometer Differential Non-linearity (8-bit)",
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"unit": "LSb",
"min": -0.5,
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"name": "Rheostat Integral Non-linearity (50 k, 8-bit, 5.5V)",
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"min": -1.5,
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"conditions": "50 k, 8-bit, 5.5V, IW = 90 µA",
"source_page": 9,
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{
"name": "Rheostat Integral Non-linearity (50 k, 8-bit, 3.0V)",
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"kind": "electrical",
"unit": "LSb",
"min": -2,
"typ": 1,
"max": 2,
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{
"name": "Rheostat Differential Non-linearity (50 k, 8-bit, 5.5V)",
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"kind": "electrical",
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"source": "datasheet"
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{
"name": "Rheostat Differential Non-linearity (50 k, 8-bit, 3.0V)",
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"conditions": "50 k, 8-bit, 3.0V, IW = 48 µA (Note 7)",
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{
"name": "Schmitt Trigger High Input Threshold",
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"min": 0.45,
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"conditions": "2.7V ≤ VDD ≤ 5.5V; all inputs except SDA and SCL",
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{
"name": "Schmitt Trigger High Input Threshold (SDA, SCL 100 kHz)",
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"unit": "VDD",
"min": 0.7,
"typ": null,
"max": null,
"conditions": "SDA and SCL, 100 kHz mode; max = VMAX",
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"name": "Schmitt Trigger Low Input Threshold",
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"name": "Schmitt Trigger Low Input Threshold (SDA, SCL 100 kHz)",
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"min": -0.5,
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"max": 0.3,
"conditions": "SDA and SCL, 100 kHz mode",
"source_page": 11,
"source": "datasheet"
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{
"name": "Hysteresis of Schmitt Trigger Inputs (SDA, SCL 1.7 MHz)",
"symbol": "VHYS",
"kind": "electrical",
"unit": "VDD",
"min": 0.1,
"typ": null,
"max": null,
"conditions": "SDA and SCL, 1.7 MHz mode",
"source_page": 11,
"source": "datasheet"
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{
"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"
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{
"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": 12,
"source": "datasheet"
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{
"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"
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{
"name": "Input Leakage Current",
"symbol": "IIL",
"kind": "electrical",
"unit": "µA",
"min": -1,
"typ": null,
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"conditions": "VIN = VDD and VIN = VSS",
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{
"name": "Supply Current (serial active, 3.4 MHz)",
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"min": null,
"typ": null,
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"conditions": "Serial interface active, HVC/A0 = VIH or VIL; write all 0's to volatile wiper 0; VDD = 5.5V, FSCL = 3.4 MHz",
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{
"name": "Supply Current (serial active, 100 kHz)",
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{
"name": "Supply Current (serial inactive)",
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"conditions": "Serial interface inactive (stop condition, SCL = SDA = VIH), wiper = 0; VDD = 5.5V, HVC/A0 = VIH",
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{
"name": "HVC Pin Voltage Range",
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"conditions": "VDD ≥ 4.5V",
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{
"name": "VDD Start Voltage to ensure Wiper Reset",
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"min": null,
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"name": "Delay after device exits reset state",
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"name": "Absolute maximum: Voltage on VDD",
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"name": "Absolute maximum: Voltage on HVC/A0, A1, A2, SCL, SDA",
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"name": "Absolute maximum: Voltage on PxA, PxW, PxB",
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{
"name": "Input clamp current",
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"kind": "absolute_maximum",
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