X9C503PZ

Overview

The X9C503PZ is a digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics Corporation. It features a single circuit with an end-to-end resistance of 10 kOhms and 100 tap points. The device utilizes a non-volatile memory type to store wiper positions, which are recalled upon power-up. It operates on a single supply voltage ranging from 4.5 V to 5.5 V, with a typical operating voltage of 5 V. The component is housed in an 8-pin PDIP package and supports a linear taper configuration.

Feature Summary

• Non-volatile memory retains wiper position data for 100 years with endurance of 100,000 data changes per bit.
• Three-wire serial interface (Up/Down, Increment, Chip Select) controls the wiper position across 100 taps.
• Low power CMOS technology with active current of 750 µA max at VCC = 5V.
• Temperature compensated resistive elements with ±20% tolerance on end-to-end resistance.

Applications

• Parameter adjustment in control systems
• Signal processing applications requiring variable resistance
• Volume or gain control in audio circuits

Part Context

The X9C503PZ belongs to the X9C10 series of digitally controlled potentiometers, which also includes the X9C102 (1kΩ), X9C103 (10kΩ), and X9C104 (100kΩ). This family shares identical pinouts and control interfaces, differing primarily in total resistance values. The 'PZ' suffix indicates an 8-lead PDIP package variant within the broader X9C503 product line.

Replacement Considerations

Direct replacements include other variants in the X9C10 series such as X9C103PZ (identical 10kΩ specification) or X9C503SZ for surface mount applications. Verify that the replacement maintains the same 10kΩ resistance, 100-tap resolution, and PDIP-8 package form factor.