ISL22323TFR16Z

Digital Potentiometers Overview

The ISL22323TFR16Z is a dual digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics Corporation. It integrates two non-volatile potentiometers with 256 taps and a resistance of 10k ohms, housed in a 16-lead TSSOP package. The device operates on a single supply voltage ranging from 2.7V to 5.5V and features an I2C serial interface for wiper position control. Key electrical parameters include a typical wiper resistance of 70 ohms, a temperature coefficient of ±85ppm/°C, and a data retention period of 50 years at temperatures up to +55°C.

Digital Potentiometers Feature Summary

• Dual non-volatile digitally controlled potentiometers with 256 taps each
• I2C serial interface with selectable address pins supporting multiple devices per bus
• Non-volatile memory retains wiper position upon power-up
• Operating temperature range from -40°C to +125°C

Digital Potentiometers Applications

• Fiber optic module laser diode bias and modulation current control
• Industrial process control parameter adjustment
• Signal processing circuit calibration

Digital Potentiometers Procurement Notes

Verify component status as the base model ISL22323 has been reported as obsolete in some distributor records. Confirm availability of the specific tape-and-reel suffix 'TFR' and RoHS compliance status through official Renesas channels or authorized distributors prior to ordering.

Digital Potentiometers Selection Notes

Select this component when dual independent digital potentiometry with non-volatile storage is required. Ensure the 10k ohm resistance value and 256-tap resolution meet the application's precision requirements. Verify that the I2C bus speed and address configuration are compatible with the system controller.

Digital Potentiometers Part Context

This part belongs to the XDCP™ family of digitally controlled potentiometers. It shares functional similarities with the ISL22326 but offers higher tap resolution (256 vs 128). The device is designed for applications requiring precise, software-adjustable resistance values without mechanical wear.

Digital Potentiometers Replacement Considerations

Check for direct pin-compatible alternatives within the Renesas portfolio. Consider the ISL22326 if lower tap count is acceptable. Verify lead time and obsolescence status for potential substitute parts.