X9418WV24-2.7

Digital Potentiometers Overview

The X9418WV24-2.7 is a dual digitally controlled potentiometer (XDCP) from the Renesas X9418 series, housed in a 24-lead TSSOP package. It integrates two independent potentiometers with a resistance of 10 kΩ and 64 taps each. The device utilizes a 2-wire serial interface for control and includes nonvolatile memory to retain wiper positions. Operating within a supply voltage range of 2.7V to 5.5V, it features low standby current and supports hardware write protection.

Digital Potentiometers Feature Summary

• Dual potentiometer configuration with 10 kΩ resistance and 64 tap resolution per channel
• 2-wire serial interface supporting direct read/write/transfer of wiper positions
• Nonvolatile data registers store up to four positions per potentiometer
• Hardware write protect input prevents unintended nonvolatile writes

Digital Potentiometers Applications

• Control and parameter adjustments in electronic circuits
• Signal processing applications requiring variable gain or attenuation
• Battery-operated systems due to low power consumption

Digital Potentiometers Procurement Notes

Verify component authenticity through authorized distributors. Confirm RoHS compliance status as the base part number may have lead-free variants. Check for tape and reel availability if surface mount automation is required. Ensure the specific temperature range matches the application environment.

Digital Potentiometers Selection Notes

Select this model for applications requiring dual independent digital pots with nonvolatile storage. The 10 kΩ value suits moderate impedance circuits. Verify that the 2-wire interface is compatible with the host microcontroller. Consider the -2.7 suffix for extended voltage operation compared to standard 5V versions.

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 XDCP devices but is distinct in its dual-channel layout and 2-wire bus compatibility. The 'WV' designation indicates the TSSOP package and commercial temperature range.

Digital Potentiometers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer technical support for recommended replacements as the datasheet states 'No Recommended Replacement'.

Digital Potentiometers FAQ

What is the function of the WP pin?

The Hardware Write Protect (WP) pin prevents nonvolatile writes to the Data Registers when held low.

How many nonvolatile data registers does each potentiometer have?

Each potentiometer has four nonvolatile Data Registers (DR0:DR3) that can store wiper positions or general-purpose data.

What is the maximum clock frequency for the serial interface?

The maximum serial clock (SCL) frequency is 400 kHz.