X9C102SIZT2

Overview

The X9C102SIZT2 is a digitally controlled potentiometer (XDCP) from the Renesas X9C10 series, manufactured by Renesas Electronics Corporation. It features a single-channel, linear taper resistance network with a nominal value of 1 kΩ and 100 wiper tap points. The device utilizes a non-volatile memory architecture to store the wiper position, ensuring data retention for up to 100 years without power. Control is managed via a standard 3-wire serial interface consisting of Chip Select (CS), Up/Down (U/D), and Increment (INC) inputs. Designed for surface-mount applications, it is housed in an 8-SOIC package.

Feature Summary

• Non-volatile memory retains wiper position upon power-up
• 100-position digital control with linear taper
• 3-wire serial interface (CS, U/D, INC)
• Single supply voltage operation at 5V

Applications

• Signal processing parameter adjustment
• Control system gain setting
• Variable resistor replacement in circuit design

Procurement Notes

Verify the specific suffix 'T2' against official Renesas documentation to confirm tape-and-reel packaging status, as datasheets often list 'I' (tube) variants. Confirm current production status, as some X9C10 family members are marked as obsolete or discontinued in distributor databases. Ensure compatibility with existing PCB footprints for the 8-SOIC package.

Selection Notes

Select this component when a solid-state alternative to mechanical potentiometers is required for applications needing position retention after power loss. The 1 kΩ resistance and ±20% tolerance suit low-power signal conditioning tasks. Verify that the 3-wire interface logic levels match the controlling microcontroller outputs.

Part Context

This part belongs to the X9C10 family of Digitally Controlled Potentiometers, originally developed by Intersil and acquired by Renesas. The family includes variants with different resistance values such as the X9C103 (10 kΩ) and X9C104 (100 kΩ). These devices share identical pinouts and control logic, differing primarily in total end-to-end resistance.

Replacement Considerations

Publicly confirmed substitute part numbers for the X9C102SIZT2 were not identified in the provided source material.