X9315WM

Digital Potentiometers Overview

The X9315WM is a digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics Corporation. It features a single circuit with 32 wiper tap points and nonvolatile memory for position retention. The device operates on a 5V supply and utilizes a 3-wire serial interface (CS, U/D, INC). It is housed in an 8-MSOP package. The total end-to-end resistance is 10 kOhms with a linear taper and ±20% tolerance. The typical temperature coefficient is ±300ppm/°C, and the contact resistance is typically 200 Ohms.

Digital Potentiometers Feature Summary

• Nonvolatile memory retains wiper position upon power-up
• 3-wire serial control interface (CS, U/D, INC)
• 32 discrete wiper tap positions
• Low power CMOS technology

Digital Potentiometers Applications

• Volume control in audio systems
• Gain adjustment in instrumentation amplifiers
• Voltage reference trimming
• Programmable biasing circuits

Digital Potentiometers Procurement Notes

Verify component status as the X9315WMI variant is listed as obsolete. Confirm RoHS compliance status, as some variants are marked non-compliant while others are compliant. Check for moisture sensitivity levels and storage conditions prior to soldering. Ensure the specific suffix matches the required packaging and environmental specifications.

Digital Potentiometers Selection Notes

Select based on required resistance value (10k, 50k, or 100k available in the series) and package type (MSOP or SOIC). Verify interface compatibility with the host controller's serial lines. Consider the operating temperature range (-40°C to +85°C for industrial variants) and ensure the supply voltage aligns with the 4.5V to 5.5V specification.

Digital Potentiometers Part Context

The X9315 belongs to the XDCP™ family of digitally controlled potentiometers. It replaces mechanical potentiometers in applications requiring digital adjustment and memory retention. The device integrates a resistor array, wiper switches, and EEPROM into a single IC, reducing board space and improving reliability compared to mechanical alternatives.

Digital Potentiometers Replacement Considerations

The X9315WMIZ is listed as a direct replacement for the X9315WMI. Verify pinout compatibility and electrical parameters before substitution. Other variants in the X9315 series may offer different resistance values or packages but share the same core functionality.