X9315UMI-2.7T2

Digital Potentiometers Overview

The X9315UMI-2.7T2 is a digitally controlled potentiometer (XDCP) from the Renesas XDCP family, manufactured by Intersil/Renesas. It features a single potentiometer circuit with 32 taps and nonvolatile memory for wiper position retention. The device utilizes an increment/decrement control interface (CS, U/D, INC) to adjust resistance settings. It operates within a supply voltage range of 2.7V to 5.5V and is housed in an 8-pin MSOP package. Key electrical parameters include a ±20% tolerance and a typical temperature coefficient of ±300ppm/°C.

Digital Potentiometers Feature Summary

• Nonvolatile Memory: Stores wiper position data for recall upon power-up.
• Increment/Decrement Interface: Controlled via CS, U/D, and INC inputs.
• Low Power Operation: Designed for low noise and low power consumption applications.
• Single Circuit Configuration: Contains one potentiometer with 32 adjustable taps.

Digital Potentiometers Applications

• Audio volume control and tone adjustment circuits.
• Programmable gain amplifier biasing.
• Variable resistor replacement in calibration circuits.
• Adjustable reference voltage generation.

Digital Potentiometers Procurement Notes

Verify component authenticity through authorized Renesas distributors or certified suppliers. Confirm RoHS compliance status as specific suffixes may vary. Check for obsolescence notices or last-time buy notifications given the product's age. Ensure storage conditions adhere to moisture sensitivity level requirements prior to soldering.

Digital Potentiometers Selection Notes

Select this model for applications requiring precise, nonvolatile resistance adjustment without continuous power. Compare total resistance values (e.g., 10k, 50k, 100k variants) against circuit requirements. Ensure the operating temperature range (-40°C to +85°C) matches the system environment. Verify that the 3-wire serial interface is compatible with the controlling microcontroller.

Digital Potentiometers Part Context

The X9315 series belongs to the XDCP (Digitally Controlled Potentiometer) family originally developed by Intersil and acquired by Renesas Electronics. These components serve as electronic alternatives to mechanical potentiometers, offering improved reliability and programmability in compact surface-mount packages like MSOP and SOIC.

Digital Potentiometers Replacement Considerations

Direct pin-compatible replacements include other X9315 variants with different resistance values or packaging (e.g., X9315USIZ, X9315TMIZ). Cross-reference with competitors such as Microchip MCP41xxx or Analog Devices AD52xx series, ensuring interface compatibility and voltage range alignment.