MCP4642-503E/UN Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4642-503E/UN is a dual-channel, 128-step, 50 kOhm digital potentiometer in a 10-pin MSOP package with non-volatile memory for wiper position retention. It uses an increment/decrement control interface and targets programmable bias, gain adjustment, and calibration applications.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 10
- Lifecycle
- ACTIVE
- Datasheet
- MCP4642-503E/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 MCP4642-503E/UN?
- 128-step resolution with 50 kOhm end-to-end resistance
- Non-volatile memory retains wiper position through power cycles
- Dual-channel digital potentiometer in a single IC
- Increment/decrement SPI-compatible control interface
- 10-pin MSOP package with RoHS-compliant lead-free finish
What is MCP4642-503E/UN used for?
The MCP4642-503E/UN is used in programmable gain amplifiers, offset trim circuits, and LCD contrast adjustment where the wiper setting must survive power cycling without a microcontroller re-initialization routine. Its dual-channel architecture in a compact MSOP-10 footprint also suits audio volume control, sensor calibration DACs, and closed-loop feedback adjustment in industrial instrumentation.
What are the specifications of MCP4642-503E/UN?
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-10 |
| Factory Lead Time | 7Weeks |
| YTEOL | 9 |
| Additional Feature | NON-VOLATILE MEMORY |
| Bandwidth-Nom | 0.2kHz |
| 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 | 50000Ω |
| 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 MCP4642-503E/UN datasheet?
MCP4642-503E/UN Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP4642-503E/UN?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many resistance steps does the MCP4642-503E/UN offer, and what end-to-end resistance value does it provide?
The MCP4642-503E/UN provides 128 wiper positions across a 50 kOhm end-to-end resistance, yielding approximately 390 Ohm per step. This resolution is sufficient for fine-grained gain or bias adjustment in audio circuits, analog front ends, and precision calibration loops.
Does the MCP4642-503E/UN retain its wiper position after the system powers off?
Yes, the MCP4642-503E/UN incorporates non-volatile memory that stores the last programmed wiper position, so it resumes the same resistance setting after a power cycle without requiring host microcontroller intervention. This is particularly valuable in factory-calibrated equipment where re-initialization on every boot is undesirable.
What control interface does the MCP4642-503E/UN use, and how does it fit into an SPI-based microcontroller design?
The MCP4642-503E/UN uses an increment/decrement serial interface compatible with standard SPI bus transactions, allowing a microcontroller to adjust the wiper position one step at a time or jump directly to a stored value. With only 10 pins in an MSOP package, it integrates easily alongside other SPI peripherals on a shared bus without adding significant PCB area.
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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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