ISL22343UFR20Z

Digital Potentiometers Overview

The ISL22343UFR20Z is a quad digitally controlled potentiometer (DCP) from the XDCP series, manufactured by Renesas Electronics. It features four independent circuits, each with 256 taps and a resistance value of 50 kOhms. The device utilizes an I²C interface for control and incorporates non-volatile memory to retain wiper positions. It operates within a supply voltage range of 2.25V to 5.5V and supports optional address selection. The component is housed in a 20-QFN-EP package measuring 5x5 mm and is rated for operation between -40°C and +125°C.

Digital Potentiometers Feature Summary

• Quad configuration with 256 taps per circuit
• Non-volatile memory retains settings without power
• I²C serial interface with optional address selection
• Wide operating temperature range: -40°C to +125°C

Digital Potentiometers Applications

• Programmable gain amplifiers
• Voltage reference adjustment
• Digital volume control in audio systems
• Sensor biasing and calibration

Digital Potentiometers Procurement Notes

Verify the manufacturer designation as Renesas Electronics, following the acquisition of Intersil. Confirm the specific suffix UFR20Z corresponds to the 20-QFN-EP(5x5) package and tape-and-reel or tube packaging details provided in official datasheets. Ensure compliance with RoHS standards as indicated in current product specifications.

Digital Potentiometers Selection Notes

Select this component when a quad digital potentiometer with high resolution (256 steps) and non-volatile storage is required. The 50kOhm resistance value suits applications needing higher impedance levels compared to lower resistance variants. The I²C interface minimizes pin count, making it suitable for space-constrained designs requiring multiple adjustable resistive elements.

Digital Potentiometers Part Context

This part belongs to the ISL22343 family of XDCP devices. It shares architectural similarities with other quad DCPs but is distinguished by its 256-tap resolution and 50kOhm nominal resistance. The QFN-EP package provides thermal dissipation through an exposed pad, supporting reliable operation in industrial environments.

Digital Potentiometers Replacement Considerations

Direct substitutes include other quad digital potentiometers with similar tap counts and interfaces, such as the ISL22344 or ISL22345 series, depending on resistance value requirements. Verify pin compatibility and memory type (volatile vs. non-volatile) when considering alternatives.