ISL23328TFRUZ-T7A

Digital Potentiometers Overview

The ISL23328TFRUZ-T7A is a dual-channel digital potentiometer IC manufactured by Renesas Electronics. It features two independent potentiometers, each with 128 tap positions and a resistance value of 10 kilohms. The device utilizes an I2C serial interface for control and includes volatile memory to retain wiper settings during operation. It operates within a supply voltage range of 1.2V to 5.5V or 1.7V to 5.5V, depending on the specific configuration, and supports selectable device addresses. The component is housed in a 14-lead TSSOP package and is designed for industrial temperature ranges.

Digital Potentiometers Feature Summary

• Dual-channel architecture providing two independent 128-tap digital potentiometers within a single integrated circuit.
• I2C serial interface compatibility allowing for straightforward communication and control using standard two-wire protocols.
• Selectable device address capability enabling multiple units to operate on the same bus without address conflicts.
• Volatile wiper memory that maintains position data during active power cycles but requires re-initialization upon power loss.

Digital Potentiometers Applications

• Programmable gain amplifiers requiring precise resistance adjustment
• Voltage reference trimming in precision measurement systems
• Digital volume control circuits in audio processing equipment

Digital Potentiometers Procurement Notes

Verify the exact suffix and package variant against the official Renesas datasheet to ensure compatibility with your PCB footprint and electrical requirements. Confirm availability status as components may be subject to end-of-life notices or production changes. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit risks and ensure traceability.

Digital Potentiometers Selection Notes

Select this component when a dual-channel solution is required to save board space compared to using two single-channel devices. Ensure the system design accounts for the volatile nature of the memory if state retention across power cycles is critical. Verify that the I2C bus speed and pull-up resistor values are compatible with the device specifications.

Digital Potentiometers Part Context

This part belongs to the ISL23328 series of digital potentiometers from Renesas. It is functionally similar to other members of the family but distinguished by its dual-channel configuration and specific packaging. The series is designed for applications needing adjustable resistance controlled digitally rather than mechanically.

Digital Potentiometers Replacement Considerations

ISL23328WFRUZ-TK is listed as a similar alternative by distributors, though it may differ in packaging or revision. Verify pinout compatibility and electrical parameters before substitution.