Renesas X9314WP

Overview

X9314WP from Intersil is a solid-state, nonvolatile, digitally controlled potentiometer with 32 log-taper taps, 10kΩ end-to-end resistance, and ±5V terminal voltage rating; it functions as a three-terminal potentiometer or two-terminal variable resistor in precision analog trimming applications such as audio volume control and sensor calibration.

For engineers reviewing the X9314WP datasheet, X9314WP pinout, X9314WP application, or X9314WP equivalent, this page delivers verified electrical parameters, wiper position storage behavior, interface timing constraints, package-specific mechanical data, and real-world use cases for embedded analog tuning circuits.

Technical Context

The X9314WP implements a 5-bit up/down counter driving a 32-position decoder to select one of 31 series resistive elements; wiper movement is edge-triggered via INC input with direction controlled by U/D logic level. Nonvolatile memory stores the counter state when CS transitions high while INC is high.

It operates from 3V to 5.5V, supports ±1mA wiper current, exhibits 40Ω typical wiper resistance, and maintains ratiometric temperature coefficient of ±20ppm/°C - enabling stable gain/attenuation ratios across industrial temperature ranges without external compensation.

Key Specifications

Pinout & Package

Package: 8-lead SOIC (M8.15), Pb-free plus anneal, RoHS compliant, body width 3.9mm, lead pitch 1.27mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digitally controlled potentiometer applications.

Compared with AD5243BRMZ10 and MCP41010-I/P, the X9314WP uniquely combines log taper, true nonvolatile recall without external components, ultra-low standby current, and simple three-wire interface - making it optimal for cost-sensitive, low-power, single-channel analog trimming where perceptual linearity matters.

Availability

X9314WP is available at Aetrix Electronics and suitable for audio equipment manufacturing, sensor calibration systems, programmable filter design, and industrial DAC reference scaling requiring stable component supply and long-term calibration retention.

Supply support for X9314WP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Intersil Corporation, now part of Renesas Electronics, designs high-performance analog and mixed-signal ICs with emphasis on power management, precision analog, and interface solutions.

The X9314WP belongs to Intersil's XDCP™ (eXternally Controlled Digital Potentiometer) family, engineered specifically for replacing mechanical potentiometers in automated calibration, factory-trimmed systems, and maintenance-free analog tuning applications.

FAQ

What is the terminal voltage rating of the X9314WP?

The X9314WP supports ±5V applied between VH/RH and VL/RL terminals with respect to VSS, and tolerates up to ±8V absolute voltage on those pins. This allows direct integration into dual-supply op-amp circuits without external clamping or level-shifting components, and ensures robust operation under transient overvoltage conditions common in industrial environments.

Does the X9314WP retain its wiper position after power loss?

Yes, the X9314WP stores the wiper position in nonvolatile memory upon command (CS rising edge with INC high) and automatically recalls that value at next power-up. This feature eliminates the need for external EEPROM or MCU-based initialization routines, ensuring consistent analog behavior across cold starts and brown-out recovery events in the X9314WP.

What is the wiper resistance specification for the X9314WP?

The X9314WP has a typical wiper resistance of 40Ω, with a maximum of 100Ω across temperature and process variation. This low on-resistance minimizes insertion loss and gain error in precision voltage divider and feedback network applications, especially critical in high-gain or low-noise amplifier stages where the X9314WP serves as a programmable element.

Can the X9314WP be used as a two-terminal variable resistor?

Yes, the X9314WP can operate as a two-terminal device by connecting either VH/RH or VL/RL to VW/RW, effectively creating an adjustable rheostat. In this configuration, the X9314WP maintains its 10kΩ end-to-end resistance range and log taper characteristic, supporting applications like LED current limiting or bias current adjustment where only one adjustable endpoint is needed.

What package type is used for the X9314WP?

The X9314WP is supplied in an 8-lead narrow-body SOIC package (JEDEC MS-012-AA, pkg drawing M8.15), with 1.27mm lead pitch, 3.9mm body width, and RoHS-compliant Pb-free plus anneal finish. This standard footprint ensures drop-in compatibility with legacy PCB layouts designed for similar digital potentiometers and simplifies rework and automated assembly of the X9314WP.