X9279TV14IZ-2.7T1

Digital Potentiometers Overview

The X9279TV14IZ-2.7T1 is a single digitally controlled potentiometer (XDCP) manufactured by Intersil, now part of Renesas Electronics. It features a 100 kOhm resistance value with 256 wiper taps and utilizes a 2-wire serial control interface for position adjustment. The device incorporates nonvolatile memory to retain the wiper setting upon power loss. It operates within a supply voltage range of 2.7V to 5.5V and is housed in a 14-pin TSSOP package. The component supports an industrial operating temperature range from -40°C to +85°C.

Digital Potentiometers Feature Summary

• Single channel digital potentiometer with 100 kOhm total resistance
• 256 discrete wiper positions for precise resistance adjustment
• Nonvolatile memory retains wiper position during power cycles
• 2-wire serial interface simplifies system connectivity

Digital Potentiometers Applications

• Programmable gain amplifiers
• Voltage reference trimming
• Digital volume control in audio systems
• Adaptive biasing circuits

Digital Potentiometers Procurement Notes

This component is identified as obsolete or end-of-life. Verification of current availability requires checking authorized distributors for remaining stock or evaluating alternative replacement parts. Sourcing should focus on verified suppliers to ensure authenticity given the discontinued status.

Digital Potentiometers Selection Notes

Select this part when a single-channel, nonvolatile digital potentiometer with 256 taps is required. Ensure the design supports a 2-wire serial interface rather than SPI or I2C. Verify that the 100 kOhm resistance and 2.7V-5.5V supply range align with the target circuit requirements.

Digital Potentiometers Part Context

The X9279 belongs to the XDCP family originally developed by Xicor, which was acquired by Intersil in 2004. The product line was subsequently integrated into Renesas Electronics following their acquisition of Intersil. This specific model represents the legacy analog portfolio managed under the Renesas brand.

Digital Potentiometers Replacement Considerations

Due to the obsolete status, direct replacements must be sourced from cross-reference tools. Potential substitutes include other single-channel, nonvolatile digital potentiometers with similar tap counts and 2-wire interfaces from manufacturers such as Analog Devices or Microchip.