X9251UV24IZ-2.7

Digital Potentiometers Overview

The X9251UV24IZ-2.7 is a quad digitally-controlled potentiometer (XDCP) from Renesas Electronics Corporation, part of the X9251 series. It integrates four independent potentiometers on a monolithic CMOS IC, each featuring 256 tap points for precise resistance adjustment. The device utilizes a serial SPI interface for control and includes nonvolatile memory to retain wiper positions during power cycles. Designed for operation within a supply voltage range of 2.7V to 5.5V, it offers low standby current and high endurance, making it suitable for applications requiring programmable bias voltages and signal processing adjustments.

Digital Potentiometers Feature Summary

• Quad configuration with 256 wiper tap points per potentiometer
• Nonvolatile storage of wiper positions with power-on recall
• SPI serial interface for write, read, and transfer operations
• Low standby current (<100µA max) and 3mA maximum wiper current

Digital Potentiometers Applications

• Programming of bias voltages in electronic circuits
• Implementation of ladder networks
• Three-resistor programmable networks
• Signal processing parameter adjustments

Digital Potentiometers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for any product change notices (PCN) related to packaging or fabrication site updates. Ensure compatibility with existing PCB footprints and verify that the SPI interface timing requirements match the host controller specifications.

Digital Potentiometers Selection Notes

Select this component when a quad digital potentiometer with nonvolatile memory and SPI interface is required. Ensure the application operates within the 2.7V to 5.5V supply range. Consider the 256-tap resolution and linear taper characteristics. Verify that the TSSOP-24 package fits the design constraints and that the operating temperature range meets environmental requirements.

Digital Potentiometers Part Context

This component belongs to the X9251 family of quad digitally-controlled potentiometers. It shares core functionalities with similar models like the X9251TV24IZ-27 but may differ in specific electrical parameters or package options. The X9251 series is designed for applications requiring multiple adjustable resistors controlled via digital interfaces, offering a solid-state alternative to mechanical potentiometers.

Digital Potentiometers Replacement Considerations

Direct replacements should be sought within the X9251 series or compatible XDCP families from Renesas. Verify pinout compatibility, interface protocol (SPI), and electrical specifications such as resistance tolerance and operating voltage. Cross-reference with datasheets to ensure functional equivalence before substitution.