MCP4541-103E/MS Microchip Integrated Circuit (Small Outline Packages) In Stock
Microchip MCP4541-103E/MS is a single-channel 10 kΩ 7-bit digital potentiometer with I2C increment/decrement interface and non-volatile memory in an 8-pin MSOP package. Wiper position is retained across power cycles. Available from stock with worldwide shipping.
- Manufacturer
- Microchip
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- MCP4541-103E/MS Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7700(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
- Non-volatile EEPROM memory retains the 7-bit wiper position across power cycles, eliminating recalibration on startup
- I2C increment/decrement interface with 10 kΩ end-to-end resistance and 1 kHz bandwidth for precision analog tuning
- Compact 8-pin MSOP-8 surface-mount package enables space-efficient layouts in portable and handheld instruments
Applications
The MCP4541-103E/MS is used in programmable gain amplifiers, sensor calibration circuits, and LCD backlight dimming controls where the 7-bit wiper setting must survive power loss without firmware re-initialization. Its I2C interface allows a single microcontroller to address multiple MCP4541 devices on the same 2-wire bus, simplifying multi-channel trim in audio equipment and industrial measurement instruments. Battery-powered handheld meters and portable test equipment benefit from its non-volatile setting and compact MSOP-8 footprint.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | MSOP-8 |
| Factory Lead Time | 6Weeks |
| YTEOL | 8 |
| Additional Feature | NON-VOLATILE MEMORY |
| Bandwidth-Nom | 1kHz |
| Control Interface | INCREMENT/DECREMENT |
| Converter Type | DIGITAL POTENTIOMETER |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Positions | 129 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.19 |
| 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 | 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 | 0.65mm |
| Terminal Position | DUAL |
| Total Resistance-Nom | 10000Ω |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| 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
Does the MCP4541-103E/MS retain its wiper position after power loss?
Yes, the MCP4541-103E/MS uses non-volatile EEPROM to store the 7-bit wiper position, so the 10 kΩ resistance setting is preserved across power cycles. This eliminates the need for host firmware to reload calibration values at startup, which is critical in field-deployed instruments and battery-backup systems where microcontroller boot time is limited and recalibration would delay operation.
What resistance value and resolution does the MCP4541-103E/MS provide for gain control circuits?
The MCP4541-103E/MS provides a 10 kΩ end-to-end resistance with 7-bit resolution, giving 128 discrete wiper positions with approximately 78 Ω per step. This step size is sufficient for fine-grained gain trimming in sensor amplifier stages, LCD contrast adjustment, and audio volume controls where 1 kHz bandwidth is adequate and the I2C increment/decrement control simplifies firmware integration.
How does the MCP4541-103E/MS I2C interface simplify multi-channel trim compared to SPI alternatives?
The MCP4541-103E/MS uses an I2C 2-wire interface, allowing multiple devices to share the same SDA and SCL lines with individual I2C addresses. Unlike SPI devices that each require a dedicated chip-select line, an I2C daisy-chain of MCP4541 units reduces GPIO pin usage significantly in multi-channel trim applications. The 6-week lead time and MSOP-8 footprint further support compact multi-device PCB assemblies for industrial calibration boards.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.0000 | $1.00 |
| 5+ | $0.9200 | $4.60 |
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| 100+ | $0.8100 | $81.00 |
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| 5000+ | $0.7700 | $3850.00 |
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