MCP4632-104E/UN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4632-104E/UN is a dual-channel digital potentiometer with 128 steps and 100 kOhm end-to-end resistance, controlled via I2C 2-wire serial interface, housed in an MSOP-10 package. Available from global distributors with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MCP4632-104E/UN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7930(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP4632-104E/UN?
- 128-step resolution digital potentiometer providing fine-grained resistance adjustment from 0 to 100 kOhm in software
- I2C 2-wire serial control interface allowing daisy-chain configuration with multiple devices on a single bus
- Dual-channel design in a compact MSOP-10 package, replacing two mechanical potentiometers in one IC
- Non-volatile wiper position storage retaining the last programmed setting through power cycles without a microcontroller
What is MCP4632-104E/UN used for?
The MCP4632-104E/UN serves as a software-configurable resistance element in audio volume control circuits, LCD display contrast adjustment, and analog signal gain tuning stages. Its I2C interface allows a host microcontroller to adjust both channels independently over a 2-wire bus shared with other peripherals, reducing GPIO usage. The 100 kOhm full-scale resistance and 128-step resolution make it a direct digital replacement for manual preset potentiometers in calibration and trimming applications.
What are the specifications of MCP4632-104E/UN?
| Manufacturer Package Code | MSOP-10 |
| Factory Lead Time | 4Weeks |
| YTEOL | 9 |
| Additional Feature | THE RESISTOR ARRAY VALUES ARE 5000 OHM,10000 OHM, 50000 OHM |
| Bandwidth-Nom | 2kHz |
| Control Interface | 2-WIRE SERIAL |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | S-PDSO-G10 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 257 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP10,.19,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Resistance Law | LINEAR |
| Resistance Tolerance-Max | 20% |
| Resistor Terminal Voltage-Max | 5.5V |
| Screening Level | TS 16949 |
| Supply Current-Max | 0.6mA |
| Supply Voltage-Nom | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Coefficient-Nom | 150ppm/°C |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 40 |
| Total Resistance-Nom | 100000Ω |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| HTS Code | 8542.39.00.60 |
| Country of Origin | Thailand |
Where can I find the MCP4632-104E/UN datasheet?
MCP4632-104E/UN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4632-104E/UN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many resistance steps does the MCP4632-104E/UN provide and what is its step size?
The MCP4632-104E/UN offers 128 wiper positions across a 100 kOhm end-to-end resistance, giving a nominal step size of approximately 781 ohms per step. This resolution is sufficient for audio taper volume control, sensor bias trimming, and gain-setting resistor dividers where mechanical potentiometers previously required manual calibration.
For an LCD display brightness control design, how does the I2C interface of MCP4632-104E/UN reduce board complexity?
The MCP4632-104E/UN uses a 2-wire I2C serial interface, allowing it to share the SCL/SDA bus with other I2C peripherals such as temperature sensors and EEPROM chips. This eliminates 2 dedicated GPIO lines compared to SPI-based alternatives, and the dual-channel design controls 2 independent backlight or contrast circuits from one MSOP-10 package, cutting component count.
When should a designer use MCP4632-104E/UN instead of a fixed resistor or a mechanical trimmer?
MCP4632-104E/UN is preferred when the required resistance must be adjusted in the field by firmware without physical access to the PCB, such as in sealed industrial enclosures. The 128-step digital control over 100 kOhm range with I2C commands replaces a manual trimmer, enables automated factory calibration routines at 2 kHz bandwidth, and maintains the set value in non-volatile memory after power-down.
What end-to-end resistance options does Microchip offer in the MCP4632 family beyond the 100 kOhm variant?
Within the MCP4632 family, Microchip offers 5 kOhm and 50 kOhm end-to-end resistance variants in addition to the 100 kOhm MCP4632-104E/UN. All share the same 128-step resolution, I2C interface, and MSOP-10 package, so swapping resistor values requires only a part number change and adjusted software scaling without PCB layout changes.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.2000 | $1.20 |
| 100+ | $0.8900 | $89.00 |
| 1000+ | $0.8700 | $870.00 |
| 5000+ | $0.8000 | $4000.00 |
| 7500+ | $0.7980 | $5985.00 |
| 10000+ | $0.7930 | $7930.00 |
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