MCP4642-103E/UN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4642-103E/UN is a dual-channel I2C digital potentiometer with 129 steps and 10 kOhm end-to-end resistance, featuring non-volatile memory to retain wiper position through power cycles. It comes in a compact MSOP-10 package with RoHS compliance. Available for worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MCP4642-103E/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
Key Features
- Dual-channel 10 kOhm digital potentiometer with 129 steps and non-volatile memory for power-loss-proof wiper retention
- I2C increment/decrement interface allowing multi-device bus sharing with address pin selection
- MSOP-10 package with 1 kHz bandwidth suitable for audio and signal conditioning designs requiring minimal board area
Applications
MCP4642-103E/UN is suited for audio volume/balance control, programmable gain amplifiers, and sensor offset calibration circuits where two independent channels are needed and settings must survive power removal. Its non-volatile memory eliminates the need for MCU-side EEPROM to store calibration constants, reducing firmware complexity. The I2C interface enables straightforward integration into system-management buses alongside other peripherals in smart building controllers and medical instrumentation.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-10 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Additional Feature | NON-VOLATILE MEMORY |
| Bandwidth-Nom | 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 | 10000Ω |
| 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 the non-volatile memory in MCP4642-103E/UN benefit designs that lose power frequently?
MCP4642-103E/UN stores the last wiper position in internal non-volatile memory, so after a power cycle both channels resume at their saved 10 kOhm positions without any MCU intervention. This removes the need for a separate EEPROM and the associated startup calibration routine, saving about 8 bytes of external storage and simplifying boot code.
What resistance resolution does each channel of MCP4642-103E/UN achieve across its 10 kOhm range?
With 129 steps across a 10 kOhm end-to-end resistance, each increment changes the wiper by approximately 78 Ohm. This fine resolution enables accurate gain trimming in instrumentation amplifiers and precise volume level steps in audio applications that require better than 1% adjustment granularity.
How many MCP4642-103E/UN devices can share the same I2C bus, and what limits the count?
MCP4642-103E/UN supports hardware address pin selection allowing up to 8 devices on a single I2C bus, giving 16 independent potentiometer channels from one bus. The 400 kHz fast-mode I2C limit means all 8 devices can be updated in under 2 ms per channel, which is more than adequate for audio and calibration applications.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.4000 | $1.40 |
| 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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