X9314WST2

Digital Potentiometers Overview

The X9314WST2 is a single digitally controlled potentiometer (XDCP) from the Renesas X9314 series, manufactured by Intersil. It features a solid-state nonvolatile design with 32 taps and a 10 kΩ end-to-end resistance. The device utilizes a logarithmic taper and operates on a 3V to 5.5V supply. It employs a three-wire serial interface (U/D, INC, CS) for wiper control. Key electrical parameters include a typical wiper resistance of 40 Ω, a maximum supply current of 500 µA, and a standby current under 500 µA. The component offers 100-year data retention and retains its position upon power-up.

Digital Potentiometers Feature Summary

• Nonvolatile memory stores wiper position for recall at power-up
• Logarithmic taper with 32 resistive elements
• Three-wire serial interface (CS, U/D, INC)
• Operates within 3.0V to 5.5V supply range

Digital Potentiometers Applications

• Digitally controlled resistance trimming
• Parameter adjustments in signal processing circuits
• Volume or gain control in audio applications

Digital Potentiometers Replacement Considerations

The X9314WSZ-3 is listed as a direct replacement for the X9314WS-3 variant. Verification of pinout and electrical compatibility is required before substituting the X9314WST2 with other models in the X9314 family.

Digital Potentiometers FAQ

What type of memory does the X9314WST2 use?

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

What is the interface protocol for controlling the wiper?

The device uses a three-wire serial interface consisting of Chip Select (CS), Up/Down (U/D), and Increment (INC) inputs.

What is the typical wiper resistance?

The typical wiper resistance is 40 Ω.