X9C104SZ

Overview

The X9C104SZ is a non-volatile digital potentiometer from the Renesas X9C10 series, housed in an 8-pin SOIC package. It features a single channel with a total resistance of 100 kΩ and a linear taper. The device contains 100 tap points controlled via a 3-wire serial interface (CS, U/D, INC). It operates on a single 5V supply with a maximum current consumption of 1 mA. The wiper position is stored in non-volatile memory for retention across power cycles. Operating temperature ranges from 0°C to +70°C.

Feature Summary

• Non-volatile memory retains wiper position after power loss
• 100 kΩ resistance with linear taper and 20% tolerance
• 3-wire serial interface for up/down control
• Single-channel configuration in SOIC-8 package

Applications

• Signal processing parameter adjustment
• Control system variable resistance
• Hardware gain or offset calibration

Procurement Notes

Verify the manufacturer origin, as the X9C104SZ is produced by both Renesas Electronics and Intersil. Confirm the specific datasheet version matches the required electrical characteristics. Ensure the SOIC-8 package dimensions align with the PCB footprint design. Check for RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this component when a 100 kΩ linear digital potentiometer with non-volatile storage is required. The 100-tap resolution provides fine adjustment steps. The 3-wire interface minimizes pin count compared to parallel interfaces. Verify that the 5V supply voltage and 0°C to 70°C operating range suit the target environment.

Part Context

The X9C104SZ belongs to the X9C10 family of digitally controlled potentiometers (XDCP). This series includes variants like X9C102 (1 kΩ) and X9C103 (10 kΩ), sharing identical pinouts and control logic but differing in resistance values and temperature coefficients. The device integrates a resistor array, wiper switches, and EEPROM into a CMOS process.

Replacement Considerations

Direct substitutes within the same family include X9C102SZ (1 kΩ) and X9C103SZ (10 kΩ) for different resistance requirements. Cross-manufacturer equivalents may exist but require verification of interface timing and voltage levels.