X9C303V8IZ

Overview

The X9C303V8IZ is a single-channel, non-volatile digital potentiometer from the XDCP series. It features a 32 kΩ resistance value with 100 taps and logarithmic taper. The device operates on a single 5 V supply and utilizes a 3-wire serial interface (CS, U/D, INC) for wiper control. Key electrical parameters include ±15% resistance tolerance and a typical temperature coefficient of ±400 ppm/°C. It is housed in an 8-lead SOIC package.

Feature Summary

• Non-volatile memory retains wiper position upon power loss
• Logarithmic taper configuration for audio or sensor applications
• Single 5 V supply operation with low current consumption
• Serial interface compatible with standard microcontrollers

Applications

• Audio volume control circuits
• Sensor calibration adjustments
• Parameter tuning in instrumentation

Procurement Notes

Verify component authenticity through authorized Renesas distributors. Confirm RoHS compliance status and check for obsolescence notices, as this part number may be subject to lifecycle changes. Ensure packaging specifications match design requirements.

Selection Notes

Select this model when a logarithmic response curve is required rather than linear. Verify that the 32 kΩ resistance range fits the circuit impedance constraints. Ensure the 5 V logic levels are compatible with the controlling microcontroller's I/O voltages.

Part Context

This component belongs to the X9C303 family of digitally controlled potentiometers. Variants within this family differ primarily by resistance value (e.g., 10 kΩ, 50 kΩ) and package type (PDIP, SOIC, TSSOP). The 'V8' suffix typically denotes specific tape-and-reel packaging or temperature grade variations.

Replacement Considerations

Direct pin-compatible replacements include other X9C303 variants with matching resistance and taper. Cross-reference datasheets for interface compatibility and ensure voltage ratings align with system requirements.