X9241AUSI

Digital Potentiometers Overview

The X9241AUSI is a quad CMOS digital potentiometer IC from the X9241A series, manufactured by Renesas Electronics. It integrates four independent 50 kOhm resistive elements with linear taper and 64 tap positions per channel. The device features non-volatile memory to retain wiper settings upon power loss and communicates via a standard serial 2-wire interface. Operating at a nominal 5 V supply (4.5 V to 5.5 V range), it draws approximately 3 mA of current. The component is housed in a 20-lead SOIC package suitable for surface mount PCB assembly.

Digital Potentiometers Feature Summary

• Quad configuration with four independent 50 kOhm digital potentiometers
• Non-volatile EEPROM storage retains wiper position after power cycle
• 64-tap resolution with linear resistance taper per channel
• Serial 2-wire interface for simplified control connections

Digital Potentiometers Applications

• Programmable gain amplifiers requiring adjustable resistance ratios
• Voltage reference trimming in precision measurement circuits
• Audio volume control systems utilizing digital adjustment
• Calibration networks for sensor signal conditioning

Digital Potentiometers Procurement Notes

Verify component authenticity through authorized distributors as counterfeits exist. Confirm RoHS compliance status via official datasheets before integration. Check for End-of-Life notices or production discontinuation updates from Renesas. Validate package markings against original specifications to ensure correct revision level.

Digital Potentiometers Selection Notes

Select this model when quad-channel adjustment is required within a single footprint. Ensure the 50 kOhm resistance value matches circuit impedance requirements. Verify that the 2-wire serial interface aligns with available microcontroller pins. Consider thermal performance limits if operating near the maximum temperature boundary.

Digital Potentiometers Part Context

This part belongs to the X9241A family of digital potentiometers, which also includes variants with different resistance values and package types such as the X9241AWSIZT1 and X9241AUPZ. The 'USI' suffix typically denotes specific packaging or tape-and-reel configurations within the SOIC-20 form factor, distinguishing it from tube-packed equivalents like the X9241AUSZ.

Digital Potentiometers Replacement Considerations

Direct substitutes include other members of the X9241A series with identical pinouts and electrical characteristics. Verify that any replacement maintains the same 64-tap resolution and non-volatile memory functionality. Cross-reference package dimensions to ensure mechanical compatibility during retrofitting.