X9C103ST2

Overview

The X9C103ST2 is a single-channel digital potentiometer IC from the XDCP series, manufactured by Renesas Electronics. It features a nominal end-to-end resistance of 10 kOhms with a linear taper and ±20% tolerance. The device provides 100 wiper tap points controlled via an increment/decrement interface. It incorporates non-volatile memory to retain the wiper position during power-off, recalling it upon power-up. Operating on a single 5V supply, it utilizes low-power CMOS technology with a maximum active current of 3mA and standby current of 500µA. The component is housed in an 8-pin SOIC package.

Feature Summary

• Non-volatile memory stores wiper position for recall on power-up
• 100 tap points with linear resistance taper
• Increment/Decrement control interface requiring no protocol controller
• Low-power CMOS operation at 5V (3mA active, 500µA standby)

Applications

• Analog signal conditioning circuits
• Bias voltage adjustment
• Audio gain control

Procurement Notes

Verify the specific suffix 'ST2' against official Renesas documentation to confirm pinout compatibility and temperature range specifications relative to other variants like 'SZ'. Confirm RoHS compliance status through the manufacturer's latest environmental reports before integration.

Selection Notes

Select this component when a solid-state replacement for mechanical potentiometers is required in space-constrained designs. Ensure the application supports the 10kΩ resistance value and that the microcontroller can generate the necessary INC/UD timing signals for reliable operation.

Part Context

This part belongs to the X9C10x family of digitally controlled potentiometers originally developed by Xicor and acquired by Intersil, now Renesas. These devices are designed to replace traditional mechanical pots in applications requiring programmable resistance without moving parts.

Replacement Considerations

Check datasheet for direct pin-compatible alternatives within the X9C10x series, such as X9C102 or X9C104, depending on required resistance values.