X9315USZ-2.7

Digital Potentiometers Overview

The X9315USZ-2.7 is a digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics Corporation, formerly Intersil. It features a single potentiometer with 32 taps and a total resistance of 50 kOhms. The device operates on a supply voltage ranging from 2.7 V to 5.5 V, with typical operating voltages at 3.3 V and 5 V. It utilizes a serial 3-wire interface for control and includes nonvolatile memory to retain wiper position settings. The component is housed in an 8-SOIC surface-mount package and supports linear taper characteristics.

Digital Potentiometers Feature Summary

• Integrated nonvolatile memory retains wiper position upon power-up
• 3-wire serial interface controls wiper position via CS, U/D, and INC inputs
• Single potentiometer configuration with 32 resistive elements
• Linear taper resistance profile with ±20% tolerance

Digital Potentiometers Applications

• Volume control in audio equipment
• Gain adjustment in signal conditioning circuits
• Voltage reference trimming
• System calibration requiring persistent setting storage

Digital Potentiometers Procurement Notes

Verify component status as the X9315 series is generally listed as obsolete or end-of-life by the manufacturer. Confirm availability through authorized distributors or surplus suppliers. Check RoHS compliance details specific to the manufacturing date code, as older stock may differ from current environmental standards. Ensure the 8-SOIC package matches the target PCB footprint.

Digital Potentiometers Selection Notes

Select this component when a low-power, nonvolatile digital potentiometer is required with a 50 kOhm range. The 3-wire interface is suitable for microcontrollers with limited I/O pins. Compare against variants like the X9315UMZ for different package options or temperature ranges. Verify that the 50 kOhm resistance value fits the circuit's impedance requirements and that the 32-tap resolution meets the necessary adjustment granularity.

Digital Potentiometers Part Context

The X9315 belongs to the XDCP™ family of digitally controlled potentiometers. This series is designed for applications replacing mechanical potentiometers where size, reliability, and programmability are priorities. The 'USZ' suffix indicates the SOIC-8 package and commercial temperature range, while '-2.7' denotes the minimum supply voltage rating.

Digital Potentiometers Replacement Considerations

Direct pin-to-pin replacements may include other X9315 variants such as X9315USZ or X9315WSIZ, depending on resistance value and package requirements. Verify compatibility with existing firmware controlling the 3-wire interface. Consider newer generations of digital potentiometers if long-term supply assurance is critical.