X9C503ST2

Overview

The X9C503ST2 is a non-volatile digital potentiometer manufactured by Renesas Electronics Corporation, part of the XDCP series. It features a single circuit with 100 taps and a total resistance of 50 kΩ. The device utilizes an increment/decrement control interface (U/D, INC, CS) for position adjustment. It operates on a 5V supply voltage and is housed in an 8-SOIC surface-mount package. The component maintains its wiper position without power due to its EEPROM memory type.

Feature Summary

• Non-volatile EEPROM storage retains wiper settings after power loss
• 100-tap resolution with linear taper configuration
• Simple 3-wire serial interface (U/D, INC, CS)
• 5V single-supply operation with CMOS technology

Applications

• Volume control in audio equipment
• Gain adjustment in signal conditioning circuits
• Voltage reference trimming
• User interface parameter setting

Part Context

The X9C503ST2 belongs to the X9C503 family, which includes variants like X9C503SZ and X9C503SIZT1. These components share identical electrical specifications but differ in packaging formats such as tube or tape-and-reel. The ST2 suffix typically denotes a specific packaging or processing variant within the Renesas/Intersil product line, often associated with plastic SOIC-8 packages.

Replacement Considerations

Direct replacements include X9C503SZ and X9C503SIZT1 from Renesas, which offer identical electrical performance. Cross-manufacturer equivalents may require verification of interface compatibility and pinout alignment. Ensure the substitute supports the required 50kΩ resistance value and 100-tap resolution.