X9C104P

Overview

The X9C104P is a single-channel digitally controlled potentiometer (XDCP) manufactured by Renesas Electronics. It features a linear resistance taper with an end-to-end resistance of 100 kΩ and 100 tap positions. The device utilizes a non-volatile memory architecture to retain wiper settings during power-off, recalling the last position upon power-up. Control is managed via a three-wire serial interface consisting of Chip Select (CS), Up/Down (U/D), and Increment (INC) inputs. It operates on a single 5 V supply voltage within a range of 4.5 V to 5.5 V.

Feature Summary

• Non-volatile memory retains wiper position across power cycles
• Three-wire serial control interface for simple integration
• Linear resistance taper with 100 discrete taps
• Single channel configuration in an 8-pin PDIP package

Applications

• Programmable gain adjustment in signal processing circuits
• Volume control in audio equipment
• Offset voltage trimming in amplifier circuits
• Variable resistor applications in parameter adjustment systems

Part Context

The X9C104P belongs to the X9C10 series of digitally controlled potentiometers from Renesas (formerly Intersil). This family includes variants such as the X9C102, X9C103, and X9C503, which share similar control logic and non-volatile memory structures but differ in resistance values or package types. The X9C104P specifically provides the 100 kΩ resistance option in a through-hole DIP format.

Replacement Considerations

The X9C104PIZ is listed as obsolete by Mouser. Equivalent components include the X9C104SZ (SOIC package) or other X9C10x series devices if pin compatibility and resistance values align. Verify that the replacement supports the required 100 kΩ value and 3-wire interface.