X9429WV14IZT1

Digital Potentiometers Overview

The X9429WV14IZT1 is a single-channel digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics Corporation. It features a total resistance of 10 kOhms with 64 discrete tap positions, providing linear taper characteristics and a typical wiper contact resistance of 150 Ohms. The device utilizes an I2C serial interface for control and includes nonvolatile memory to retain wiper settings. It operates within a supply voltage range of 2.7 V to 5.5 V and supports an extended industrial temperature range from -40°C to +85°C. The component is housed in a 14-lead Thin Shrink Small Outline Package (TSSOP).

Digital Potentiometers Feature Summary

• Single-channel digital potentiometer with 10 kOhm resistance and 64 taps.
• I2C serial control interface with optional address selection.
• Nonvolatile memory retains wiper position data without power.
• Operates on a single supply voltage from 2.7 V to 5.5 V.

Digital Potentiometers Applications

• Programmable gain amplifiers requiring precise gain adjustment.
• Voltage reference trimming in measurement systems.
• Audio volume control applications utilizing digital interfaces.

Digital Potentiometers Procurement Notes

Verify the RoHS compliance status carefully, as documentation indicates conflicting information regarding lead-free certification across different sources. Confirm the current product lifecycle status, as some records classify this specific part number as obsolete or end-of-life. Ensure the selected variant matches the required operating temperature range and package specifications for the target design.

Digital Potentiometers Selection Notes

Select this component when a single-channel, linear-taper digital potentiometer with I2C connectivity is required. The 10 kOhm value and 64-step resolution are suitable for moderate precision adjustments. Verify that the system voltage falls within the 2.7 V to 5.5 V range and that the I2C bus speed is compatible with the device's specifications.

Digital Potentiometers Part Context

This component belongs to the X9429 series of digitally controlled potentiometers. It shares architectural similarities with other members of the family but is distinguished by its specific I2C interface and 10 kOhm resistance value. The 'IZ' suffix typically denotes the industrial temperature grade and RoHS-compliant packaging, while 'T1' indicates tape-and-reel packaging.

Digital Potentiometers Replacement Considerations

Direct replacements may include other X9429 variants with identical pinouts and electrical characteristics. Verify compatibility regarding the I2C address configuration and nonvolatile memory behavior before substitution.

Digital Potentiometers FAQ

What type of memory does the X9429WV14IZT1 use?

It uses nonvolatile memory to store the wiper position, ensuring the setting is retained after power cycles.

What is the resistance tolerance of this digital potentiometer?

The total resistance tolerance is specified as ±20%.

Does the device support multiple devices on the same bus?

Yes, it features optional address selection, allowing multiple units to be connected on a single I2C bus.