X9C104SIZ

Overview

The X9C104SIZ is a single-channel digital potentiometer IC from the X9C10 series, manufactured by Renesas Electronics. It features a total resistance of 100 kOhms with a linear taper and 100 tap positions. The device utilizes non-volatile memory to retain wiper settings during power-off cycles. It operates on a single 5V supply (4.5V to 5.5V range) with a typical current consumption of 750 µA to 1 mA. The component uses a 3-wire serial interface for control and is housed in an 8-lead SOIC package suitable for surface mount applications.

Feature Summary

• Non-volatile EEPROM storage retains wiper position after power loss
• 100-position linear taper digital potentiometer with 100 kOhm resistance
• Simple 3-wire serial interface (CS, U/D, INC) for control
• Single 5V supply operation with low power consumption

Applications

• Signal processing parameter adjustment
• Hardware gain control circuits
• Voltage reference trimming
• Audio volume control systems

Procurement Notes

Verify the specific suffix 'I' indicates industrial temperature range (-40°C to +85°C). Confirm RoHS compliance status as it varies by production batch. Check for direct replacement options like X9C104SZT1 if the exact SIZ variant is unavailable. Ensure the 8-SOIC footprint matches the target PCB design.

Selection Notes

Select this model when a 100 kOhm resistance value is required. Choose the industrial grade version for environments exceeding standard commercial temperatures. Verify that the 3-wire interface compatibility exists with the host microcontroller. Consider the ±20% tolerance and 300 ppm/°C temperature coefficient for precision requirements.

Part Context

This component belongs to the X9C10 family of Digitally Controlled Potentiometers (XDCP). It shares architectural similarities with the X9C102 (1kΩ) and X9C103 (10kΩ) but provides higher resistance. The 'SIZ' designation typically denotes the SOIC-8 package, industrial temperature range, and specific tape/reel or tube packaging configurations depending on the final character.

Replacement Considerations

The X9C104SZT1 is listed as a direct substitute. Other compatible alternatives include the DS1804Z-100+ from Analog Devices. Verify pinout and interface compatibility before substitution.