X9418WS24IT1

Digital Potentiometers Overview

The X9418WS24IT1 is a dual digitally controlled potentiometer (XDCP) from the X9418 series, manufactured by Renesas Electronics. It integrates two independent 10 kΩ resistor arrays, each providing 64 discrete taps for precise resistance adjustment. The device utilizes a 2-wire serial interface (SCL/SDA) for communication and includes nonvolatile memory to retain wiper positions. It operates on a single VCC supply of 5V ±10% and supports an industrial temperature range of -40°C to +85°C. Packaged in a 24-lead SOIC, it features low power consumption with standby current under 1µA.

Digital Potentiometers Feature Summary

• Dual 10 kΩ potentiometers with 64-tap resolution per channel
• 2-wire serial interface supporting up to 400 kHz clock frequency
• Nonvolatile data retention of 100 years with 100,000 write endurance per register
• Industrial temperature range (-40°C to +85°C) in 24-lead SOIC package

Digital Potentiometers Applications

• Control and parameter adjustments in electronic circuits
• Signal processing applications requiring variable gain or attenuation
• Battery-operated systems due to low standby current (<1µA)
• Offset voltage adjustment in amplifier configurations

Digital Potentiometers Procurement Notes

Verify component authenticity through authorized Renesas distributors. Confirm RoHS compliance status as the datasheet indicates Pb-free plus anneal options are available. Check for end-of-life notices, as the document marks the part as not recommended for new designs. Ensure ordering suffixes match specific package and temperature requirements.

Digital Potentiometers Selection Notes

Select this model for applications requiring dual independent digital pots with nonvolatile storage. The 10 kΩ resistance value suits moderate impedance signal paths. Verify that the 2-wire serial interface aligns with the host microcontroller's capabilities. Consider the 24-lead SOIC footprint for PCB layout constraints. Alternative lower-resistance variants exist if higher current handling is needed.

Digital Potentiometers Part Context

This component belongs to the X9418 family of low noise, low power digitally controlled potentiometers. It shares architectural similarities with other X9418 variants but differs in resistance value (10 kΩ vs 2.5 kΩ) and package type. The 'WS' designation indicates the SOIC package, while 'I' denotes the industrial temperature range. The 'T1' suffix specifies tape and reel packaging.

Digital Potentiometers Replacement Considerations

Public confirmed substitute part numbers: None listed in the provided documentation. The datasheet explicitly states 'NO RECOMMENDED REPLACEMENT'. Designers should consult Renesas Technical Support Center for potential cross-references.