X9C104SZT1

Overview

The X9C104SZT1 is a single-channel, non-volatile digital potentiometer from the XDCP series by Renesas Electronics. It features a 100 kΩ resistance value with 100 tap positions and linear taper characteristics. The device operates on a 5 V supply voltage and utilizes a serial 3-wire interface (U/D, INC, CS) for control. Packaged in an 8-pin SOIC format, it maintains resistance settings via EEPROM technology after power loss. The component supports surface-mount installation and functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Non-volatile EEPROM storage retains wiper position data without external power
• Serial 3-wire interface enables simple microcontroller integration
• 100 kΩ total resistance with 100 discrete tap steps
• Linear taper profile ensures uniform resistance adjustment

Applications

• Volume control circuits in audio equipment
• Gain adjustment stages in signal processing systems
• Voltage reference trimming in measurement instruments
• User interface parameter setting in embedded devices

Procurement Notes

Verify RoHS compliance status as manufacturing sources may vary. Confirm package dimensions against PCB footprint requirements. Check datasheet for specific ordering suffixes that denote tape-and-reel quantities versus cut-tape options. Ensure voltage levels match system logic standards before integration.

Selection Notes

Select this model when non-volatile memory is required to preserve calibration settings. The 100 kΩ value suits moderate impedance applications. Verify that the 3-wire interface aligns with available microcontroller pins. Consider thermal stability if operating near the upper temperature limit.

Part Context

This part belongs to the X9C10x family of digital potentiometers, which includes variants with different resistance values such as 1 kΩ (X9C102), 10 kΩ (X9C103), and 100 kΩ (X9C104). All members share similar pinouts and control protocols but differ in resistance tolerance and specific application ranges.

Replacement Considerations

The X9C104ST1 is listed as a direct replacement, though it may lack current RoHS compliance. Alternative cross-reference models include DS1804Z-100+ from Analog Devices/Maxim Integrated, which offers similar functionality with potential interface or packaging differences.