X9C104P-3

Overview

The X9C104P-3 is a digitally controlled potentiometer (XDCP) from the X9C10 series, manufactured by Renesas Electronics. It features a single channel with a total resistance of 100 kΩ and a linear taper. The device includes 100 tap positions controlled via a 3-wire serial interface (CS, U/D, INC). Non-volatile memory retains the wiper setting during power-off. It operates on a single 5V supply, has a maximum supply current of 750 µA, and functions within a temperature range of 0°C to 70°C. The component is housed in an 8-pin PDIP package.

Feature Summary

• Non-volatile memory stores wiper position for retention after power loss
• 100-position digital control with linear resistance taper
• Simple 3-wire serial interface for easy microcontroller integration
• Single-channel configuration with 100 kΩ total resistance

Applications

• Variable gain control in audio signal processing circuits
• Voltage reference adjustment in measurement systems
• Parameter tuning in feedback loops using oscillators
• Calibration of sensor bias voltages

Procurement Notes

Verify the specific suffix 'P-3' against official Renesas documentation to confirm pinout compatibility and exact electrical tolerances. Ensure the source provides valid RoHS compliance data if required for assembly standards. Cross-reference the manufacturer part number with authorized distributors to confirm availability status and lead times.

Selection Notes

Select this component when a non-volatile, single-channel digital potentiometer with 100 kΩ resistance is required. The 3-wire interface suits applications with limited GPIO pins. Verify that the 5V operating voltage aligns with the system logic levels. Consider the 20% resistance tolerance and 300 ppm/°C temperature coefficient for precision requirements.

Part Context

The X9C104P-3 belongs to the X9C10 family of digitally controlled potentiometers originally developed by Intersil and now produced by Renesas. This series integrates resistor arrays, wiper switches, and EEPROM into a CMOS process. The 'P' designation typically indicates a plastic DIP package, distinguishing it from SOIC variants like the X9C104SZ.

Replacement Considerations

Direct replacements include other X9C104 variants such as X9C104SZ or X9C104ST1, provided the package type difference (DIP vs. SOIC) is accommodated by the PCB design. Verify that substitute components maintain the same 100 kΩ resistance, 100 taps, and 3-wire interface compatibility.