ISL22343UFV20Z

Digital Potentiometers Overview

The ISL22343UFV20Z is a quad digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics. It integrates four independent potentiometers, each featuring 256 taps and a total resistance of 50k ohms. The device utilizes an I²C serial interface for control and includes non-volatile memory to retain wiper positions during power loss. Operating on a single supply voltage ranging from 2.25V to 5.5V, it offers a typical wiper resistance of 70 ohms and supports an operating temperature range of -40°C to +125°C in a 20-TSSOP package.

Digital Potentiometers Feature Summary

• Four independent 50kΩ potentiometers with 256 linear taps per channel
• Non-volatile memory retains wiper settings across power cycles
• I²C serial interface with three address pins supporting up to eight devices on one bus
• Shutdown mode with maximum current consumption of 5µA

Digital Potentiometers Applications

• Control and parameter adjustment circuits
• Signal processing applications requiring variable resistance
• Industrial controls needing durable digital adjustments

Digital Potentiometers Procurement Notes

Verify the specific suffix UFV20Z against the manufacturer's official datasheet to confirm the 20-TSSOP package and 50kΩ resistance value. Ensure compatibility with the required I²C address configuration and voltage levels within the 2.25V to 5.5V range before procurement.

Digital Potentiometers Selection Notes

Select this component when four independent, high-resistance digital pots are required in a compact surface-mount package. The 50kΩ value suits low-current signal conditioning, while the 256-tap resolution provides fine adjustment granularity. Verify that the system can accommodate the ±20% tolerance and the specific I²C addressing scheme.

Digital Potentiometers Part Context

This part belongs to the XDCP™ series of digitally controlled potentiometers from Renesas. It shares functional similarities with other models in the family, such as the ISL22346, but differs in tap count (256 vs 128) and specific resistance options. The device is designed for applications requiring reliable, non-volatile analog resistance control via digital interfaces.

Digital Potentiometers Replacement Considerations

The ISL22346 is a related quad DCP offering 128 taps instead of 256. When substituting, verify that the reduced resolution meets application requirements and that pinouts remain compatible. Check for any differences in shutdown current or supply voltage ranges between the specific variants.