X9315USIZ

Digital Potentiometers Overview

The X9315USIZ is a digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics Corporation, formerly Intersil. It features a single 50 kΩ resistive array with 32 taps and nonvolatile memory for wiper position storage. The device operates on a 3-wire serial interface using CS, U/D, and INC inputs to control the wiper. It supports a supply voltage range of 2.7 V to 5.5 V and consumes low power. The component is housed in an 8-pin SOIC package and is designed for applications requiring precise resistance adjustment without mechanical wear.

Digital Potentiometers Feature Summary

• Nonvolatile memory retains wiper position after power loss
• 3-wire serial interface (CS, U/D, INC) for control
• Single circuit with 32 taps and 50 kΩ total resistance
• Low power consumption with 50 µA operating current

Digital Potentiometers Applications

• Audio volume control and tone adjustment
• Programmable gain amplifiers
• Voltage reference trimming
• Sensor calibration circuits

Digital Potentiometers Procurement Notes

The X9315USIZ is listed as a discontinued product by Renesas Electronics. Availability is limited to existing stock or third-party distributors. Verification of authenticity and lot traceability is critical due to the end-of-life status. Buyers should confirm the specific suffix 'T1' if tape-and-reel packaging is required, as standard tubes may differ.

Digital Potentiometers Selection Notes

Select the X9315USIZ when a reliable, nonvolatile digital potentiometer is needed with a 50 kΩ range. Ensure the system voltage falls within the 2.7 V to 5.5 V range. The 3-wire interface requires compatible microcontroller GPIOs. For industrial temperature ranges (-40°C to 85°C), verify if the USIZ variant meets the requirement or if the US-2.7T2 version is more appropriate.

Digital Potentiometers Part Context

The X9315 belongs to the XDCP™ family of digitally controlled potentiometers from Renesas/Intersil. This series is known for combining traditional potentiometer functionality with digital control capabilities. The USIZ suffix typically denotes an 8-pin SOIC package with specific commercial or industrial temperature ratings depending on the full datasheet specification.

Digital Potentiometers Replacement Considerations

As a discontinued part, direct replacements may be scarce. Consider the X9315UMZ (MSOP package) or X9315US-2.7T2 (SOIC package) for pin-compatible alternatives. Verify that the replacement maintains the same 32-tap resolution and nonvolatile memory characteristics.