X9C102SIZ

Overview

The X9C102SIZ is a digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics Corporation. It features a single-channel configuration with a total resistance of 1 kΩ and a linear taper. The device provides 100 wiper tap points controlled via a 3-wire serial interface consisting of CS, U/D, and INC inputs. Nonvolatile memory retains the wiper position upon power-up. It operates on a single 5V supply with a maximum active current of 750 µA. The component is housed in an 8-SOIC surface-mount package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Nonvolatile memory stores wiper position for recall after power loss
• 100-tap resolution with linear resistance taper
• 3-wire serial control interface (CS, U/D, INC)
• Single 5V supply operation with low standby current

Applications

• Signal processing parameter adjustment
• Control circuit variable resistance
• Audio volume or tone control circuits

Procurement Notes

Verify the specific suffix 'IZ' against the manufacturer's datasheet to confirm the SOIC-8 package type and industrial temperature rating. Ensure compatibility with the required 3-wire digital interface logic levels before integration into the design.

Selection Notes

Select this component when a nonvolatile digital solution is required for precise resistance adjustment without mechanical wear. Compare the 1 kΩ value and 100-tap count against application requirements. Verify that the 8-SOIC footprint fits the PCB layout constraints.

Part Context

This part belongs to the X9C10 series of digitally controlled potentiometers. It shares architectural similarities with models like the X9C103 and X9C104, differing primarily in total resistance values while maintaining the same 100-tap structure and control interface.

Replacement Considerations

Check for direct pin-compatible substitutes within the X9C10 family, such as the X9C103SIZ or X9C104SIZ, if different resistance values are acceptable. Verify that any alternative maintains the same nonvolatile memory behavior and 3-wire interface protocol.