MCP4642-104E/UN Microchip Integrated Circuit (Small Outline Packages) In Stock
MCP4642-104E/UN is a dual-channel, non-volatile digital potentiometer from Microchip with 128 wiper steps and a 100 kOhm end-to-end resistance per channel. It uses an I2C-compatible increment/decrement control interface with 0.1 kHz bandwidth and stores wiper positions in non-volatile memory. Packaged in a 10-pin MSOP for compact analog trimming in consumer and industrial electronics.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MCP4642-104E/UN Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.9370(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 MCP4642-104E/UN?
- Dual-channel 100 kOhm digital potentiometer with 128 steps per channel provides independent fine-grained resistance control from a single device
- Non-volatile wiper memory retains both channel positions after power loss, eliminating host re-initialization on every power cycle
- I2C-compatible increment/decrement interface simplifies firmware integration with microcontrollers that have limited available GPIO pins
What is MCP4642-104E/UN used for?
The MCP4642-104E/UN is designed for dual-axis offset trimming, stereo volume control, and gain adjustment in audio and signal conditioning circuits where non-volatile retention of settings is required. Its 100 kOhm resistance range and 128-step resolution suit applications like adjustable low-pass filter tuning and LCD bias voltage control in portable consumer devices. The compact 10-pin MSOP package makes it suitable for space-constrained instrumentation and IoT sensor calibration modules.
What are the specifications of MCP4642-104E/UN?
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-10 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Additional Feature | NON-VOLATILE MEMORY |
| Bandwidth-Nom | 0.1kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | S-PDSO-G10 |
| JESD-609 Code | e3 |
| Number of Functions | 2 |
| Number of Positions | 129 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP10,.19,20 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| 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 | 2.7V |
| 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 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the MCP4642-104E/UN datasheet?
MCP4642-104E/UN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4642-104E/UN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many resistance steps are available per channel on the MCP4642-104E/UN, and what is the step size?
Each of the 2 channels provides 128 wiper steps across a 100 kOhm end-to-end resistance, giving a step size of approximately 781 ohms per step. This resolution is suitable for applications such as adjustable gain stages, LCD bias trimming, and audio tone control where moderate resistance granularity across a 100 kOhm range is sufficient.
Does the MCP4642-104E/UN retain both channel positions when power is removed?
Yes. Both channels store their 128-step wiper positions in on-chip non-volatile memory that survives power cycling. When the device powers up, the wipers automatically return to their last programmed 100 kOhm positions without any I2C command from the host, making the MCP4642-104E/UN ideal for field-calibrated instruments that must maintain settings across power interruptions.
Can the MCP4642-104E/UN control both channels independently in a stereo audio volume circuit?
Yes. The device exposes 2 fully independent wiper channels, each with its own 128-step, 100 kOhm potentiometer element. In a stereo volume application, the left and right audio signals connect to separate wiper channels, allowing independent level adjustment. The I2C address and command structure support writing to either channel individually or simultaneously for matched-volume operation.
How does the 10-pin MSOP package of the MCP4642-104E/UN compare to a through-hole dual-gang trimmer for PCB space?
A standard dual-gang through-hole trimmer potentiometer typically occupies 15 mm x 15 mm or more of PCB area, while the 10-pin MSOP package occupies under 4 mm x 4 mm. Beyond the roughly 10x footprint reduction, the MCP4642-104E/UN also eliminates mechanical wear, allows software-controlled adjustment without physical access, and provides the non-volatile 100 kOhm retention feature absent in mechanical trimmers.
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More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.3100 | $1.31 |
| 100+ | $1.0600 | $106.00 |
| 1000+ | $1.0200 | $1020.00 |
| 5000+ | $0.9480 | $4740.00 |
| 7500+ | $0.9390 | $7042.50 |
| 10000+ | $0.9370 | $9370.00 |
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