9110-02CS14LF

Overview

The Renesas Electronics Corporation model 9110-02CS14LF is a single digitally controlled potentiometer (XDCP) belonging to the X9110 series. It features a 10-bit resolution with 1024 resistor taps and an end-to-end resistance of 100kΩ. The device utilizes an SPI serial interface for write, read, and transfer operations. It operates on a system supply voltage (VCC) ranging from 2.7V to 5.5V and supports analog supply voltages (V+/V-) between -5V and +5V. Key specifications include a typical wiper resistance of 40Ω at 5V, four nonvolatile data registers for storing wiper positions, and power-on recall functionality. The component is housed in a 14-lead TSSOP package.

Feature Summary

• Single Digitally Controlled Potentiometer (XDCP) with 1024 taps and 10-bit resolution
• SPI serial interface for direct control of wiper position via Wiper Counter Register
• Four nonvolatile data registers allowing storage and recall of multiple wiper positions
• Dual supply operation: System VCC 2.7V–5.5V; Analog V+/V- -5V to +5V

Applications

• Adjusting gain in voltage amplifier circuits
• Providing programmable DC reference voltages for comparators and detectors
• Volume control in audio circuits
• Trimming offset voltage errors in voltage amplifiers
• Setting output voltages in voltage regulators

Procurement Notes

Verify component status as the related X9110 series has been marked as obsolete or discontinued in public distributor records. Confirm availability through authorized channels or last-time-buy options if sourcing for production. Ensure compatibility with existing PCB footprints for the 14-TSSOP package during procurement planning.

Selection Notes

Select this component when a single-channel digital potentiometer with high end-to-end resistance (100kΩ) and dual-supply capability is required. The X9110 variant is suitable for applications needing negative analog supply rails compared to the single-supply X9111. Verify that the SPI interface timing meets the system requirements and that the 10-bit resolution is sufficient for the specific application's precision needs.

Part Context

The 9110-02CS14LF is part of the X9110 family of single digitally controlled potentiometers. This family integrates a monolithic CMOS circuit with 1023 resistive elements and switches. The X9110 specifically serves as the dual-supply version of the X9111, designed for applications requiring bipolar analog signal handling while maintaining digital control via the SPI bus.

Replacement Considerations

Publicly documented substitutes are not explicitly listed in the provided source material. Engineers should evaluate other XDCP™ devices from Renesas or compatible SPI-controlled digital potentiometers from other manufacturers, ensuring matching pinout, resistance values, and voltage ratings.