Device Overview
Microchip Technology MCP41010-I/SN is an exact-order 8-bit single digital potentiometer with SPI supplied in SOIC-8. For substitution or design review, the strongest comparison points are Device Function (8-bit single digital potentiometer with SPI), End To End Resistance (10 kohm), Resolution (8 bit).
Selection-Critical Data
| Parameter | Confirmed Data | Why It Matters |
|---|---|---|
| Device Function | 8-bit single digital potentiometer with SPI | Defines the device function or architecture that a compatible replacement must preserve before secondary ratings are compared. |
| End To End Resistance | 10 kohm (typical RAB) | Defines the full-scale resistance of the digital potentiometer path and therefore the achievable attenuation/bias range and loading. |
| Resolution | 8 bit (256 positions) | Defines conversion granularity and therefore the smallest code-level change represented by the converter. |
| Channels | 1 | Defines the number or arrangement of parallel signal/control paths and therefore the resources a replacement must provide. |
| Operating Voltage | 2.7 to 5.5 V | Defines the electrical voltage envelope that must cover the intended operating or stress level. |
| Interface | SPI | Defines the documented control or communication path that must remain compatible with the host and surrounding peripherals. |
| Exact Package | SOIC-8 | Determines PCB footprint, pinout, mechanical assembly and orderable-variant compatibility. |
Analog Selection Notes
At 8-bit single digital potentiometer with SPI, the device function defines the device function or architecture that a compatible replacement must preserve before secondary ratings are compared. At 1, the channels defines the number or arrangement of parallel signal/control paths and therefore the resources a replacement must provide.
SOIC-8 is the stated exact package value. Determines PCB footprint, pinout, mechanical assembly and orderable-variant compatibility.
End To End Resistance is 10 kohm. Defines the full-scale resistance of the digital potentiometer path and therefore the achievable attenuation/bias range and loading. Technical condition: typical RAB. Resolution is 8 bit. Defines conversion granularity and therefore the smallest code-level change represented by the converter. Technical condition: 256 positions.
2.7 to 5.5 V is the stated operating voltage value. Defines the electrical voltage envelope that must cover the intended operating or stress level. At SPI, the interface defines the documented control or communication path that must remain compatible with the host and surrounding peripherals.
For the same SPI-controlled family at a different impedance, MCP41050-I/SN has 50 kΩ rather than 10 kΩ nominal end-to-end resistance. MCP41010-E/SN keeps the 10 kΩ nominal value but is an extended-temperature ordering variant. Review the digital potentiometer category for other architectures.
