ISL22414TFU10Z-TK

Digital Potentiometers Overview

The ISL22414TFU10Z-TK is a single digitally controlled potentiometer (XDCP) from the XDCP™ series, manufactured by Renesas Electronics Corporation. It integrates a 100kΩ resistor network with 256 taps, control logic, and non-volatile memory on a monolithic CMOS IC. The device features a dual power supply capability, supporting VCC from 2.25V to 5.5V and V- from -2.25V to -5.5V. It communicates via an SPI serial interface and includes a volatile Wiper Register (WR) and a non-volatile Initial Value Register (IVR). The component is housed in a 10-lead MSOP package and operates within an extended industrial temperature range of -40°C to +125°C.

Digital Potentiometers Feature Summary

• 256-tap digitally controlled potentiometer with 100kΩ total resistance
• SPI serial interface with write/read capability and daisy chain support
• Non-volatile EEPROM storage for wiper position and 14 general-purpose registers
• Dual power supply operation: VCC 2.25V–5.5V and V- -2.25V–-5.5V

Digital Potentiometers Applications

• Control and parameter adjustments
• Signal processing applications requiring bipolar ranges
• Low noise, low power circuit tuning

Digital Potentiometers Procurement Notes

Verify that the ordering suffix TK corresponds to the specific tape and reel packaging configuration defined in the manufacturer's documentation. Confirm the component status as Not Recommended for New Designs (NRND) and ensure the recommended replacement ISL22414TFU10Z is acceptable for the intended application. Check RoHS compliance and MSL classification against current standards.

Digital Potentiometers Selection Notes

Select this part when a 100kΩ digital potentiometer with 256 resolution is required. Ensure the application supports the dual supply voltage requirements for bipolar terminal ranges. Verify that the SPI interface timing parameters, such as clock frequency up to 5MHz, are compatible with the host microcontroller. Consider the 10-MSOP package dimensions for PCB layout constraints.

Digital Potentiometers Part Context

The ISL22414TFU10Z-TK belongs to the ISL22414 family of single-channel digitally controlled potentiometers. It shares functional characteristics with other variants in the series, such as different resistance options (10kΩ, 50kΩ) and military temperature grades. The 'TK' suffix typically denotes a specific packaging variant, often tape and reel, distinct from the standard tube packaging of the base part number.

Digital Potentiometers Replacement Considerations

The datasheet explicitly lists the ISL22414TFU10Z as the recommended replacement for obsolete variants like the ISL22414UFU10Z and ISL22414WFU10Z. No other direct cross-model replacements are documented for this specific part number.