MCP4642-502E/UN Microchip Integrated Circuit (Small Outline Packages) In Stock
The MCP4642-502E/UN is a dual-channel non-volatile digital potentiometer with 128 resistance steps and a 5 kΩ end-to-end resistance, controlled via increment/decrement interface in an MSOP-10 package. It stores the wiper position in non-volatile memory so the last setting is retained after power removal. Available from stock with Pb-free RoHS-compliant construction and worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MCP4642-502E/UN Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual-channel non-volatile digital potentiometer with 128 steps and 5 kΩ end-to-end resistance; retains wiper position across power cycles via integrated NVM
- Increment/decrement control interface enables simple 2-wire push-button or GPIO-driven resistance adjustment without a full SPI/I2C bus
- Compact MSOP-10 Pb-free package with 2 kHz nominal bandwidth, suitable for audio volume, gain trim, and calibration applications
Applications
The MCP4642-502E/UN is used in applications requiring dual-channel software-adjustable resistance with power-off memory retention, such as programmable gain amplifiers, audio balance and volume controls, and sensor calibration circuits that must preserve calibration values after power cycling. Its increment/decrement interface simplifies control from low-cost MCUs or mechanical push-buttons, making it practical for user-adjustable settings in consumer electronics and industrial panel controllers. The MSOP-10 footprint and 2 kHz bandwidth suit compact mixed-signal board designs in portable medical devices and test instruments.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-10 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Additional Feature | NON-VOLATILE MEMORY |
| Bandwidth-Nom | 2kHz |
| 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 | 5000Ω |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does non-volatile memory in the MCP4642-502E/UN benefit a calibration circuit that powers off frequently?
The integrated non-volatile memory in the MCP4642-502E/UN retains the 128-step wiper position across power cycles without any external EEPROM or battery backup. In calibration circuits, this means the calibration offset set during production test is preserved when power is removed, eliminating re-calibration on every power-up and reducing initialization time.
What control interface does the MCP4642-502E/UN use, and when is it simpler than SPI-based digital potentiometers?
The MCP4642-502E/UN uses an increment/decrement control interface requiring only 2 to 3 GPIO lines to step the wiper position up or down among 128 steps across a 5 kΩ range. This is simpler than SPI-based potentiometers when the host MCU has limited SPI peripherals or when mechanical push-buttons need to directly drive the control pins.
For a dual-channel audio balance circuit, what resistance range and step resolution does the MCP4642-502E/UN provide?
The MCP4642-502E/UN provides two independent channels each with 128 steps and a 5 kΩ end-to-end resistance, giving a step resolution of approximately 39 Ω per step. This resolution and 2 kHz nominal bandwidth make both channels usable as fine-grained audio balance or volume controls in consumer electronics.
How does the MSOP-10 package of the MCP4642-502E/UN compare with a SOIC-10 alternative for high-density PCB layouts?
The MSOP-10 package has a body size of approximately 3 mm x 3 mm with 0.5 mm pin pitch, which is roughly 60% smaller than a standard SOIC-10 package footprint, enabling significant board space savings in high-density PCB layouts for portable instruments and wearable devices that use the MCP4642-502E/UN's dual-channel non-volatile potentiometer.
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