Renesas X9313WS-3

Overview

X9313WS-3 from Intersil is a digitally controlled potentiometer (XDCP™) with 32 linear tap positions, 3-wire serial interface (CS/U/D/INC), nonvolatile wiper position storage, and 10 kΩ end-to-end resistance. It operates from 3V to 5.5V, supports ±VCC terminal voltages, and functions as a three-terminal voltage divider or two-terminal variable resistor in analog trimming applications.

For engineers reviewing the X9313WS-3 datasheet, X9313WS-3 pinout, X9313WS-3 application, or X9313WS-3 equivalent, key selection criteria include its 10 kΩ RTOTAL tolerance (±20%), wiper resistance (40 Ω typ. at 5V), 100,000-cycle endurance, 100-year data retention, and compatibility with commercial temperature range (0°C to +70°C) in SOIC-8 packaging.

Technical Context

The X9313WS-3 implements a 31-element resistor array with make-before-break wiper switching, enabling glitch-free tap transitions. Its 5-bit up/down counter drives a decoder that selects one of 32 wiper positions, with direction controlled by U/D and step triggered by negative-edge INC while CS is low.

Wiper position is stored into nonvolatile memory when CS rises high while INC is high, and automatically recalled at power-up. The device enters standby mode (500 µA max) when deselected, and supports full-rail terminal voltages (–VCC to +VCC) with ±4.4 mA max wiper current and 10 mW power rating for RTOTAL ≥ 10 kΩ.

Key Specifications

Pinout & Package

Package: 8-lead SOIC (Pb-free, RoHS compliant), footprint per JEDEC MS-012-AA (M8.15 drawing), body width 3.9 mm, lead pitch 1.27 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5171BRMZ-10 and MCP41010-I/P, the X9313WS-3 offers simpler 3-wire control, guaranteed power-on wiper recall without firmware, and lower wiper resistance-making it optimal for cost-sensitive, low-pin-count analog trimming where 32-step resolution suffices.

Availability

X9313WS-3 is available at Aetrix Electronics and suitable for audio volume control, DC offset calibration, power supply feedback adjustment, and sensor signal conditioning requiring stable component supply and long-term calibration integrity.

Supply support for X9313WS-3 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 is a provider of precision analog and power management ICs, serving industrial, infrastructure, and high-end consumer markets with robust, application-optimized solutions.

The X9313 family was designed for solid-state replacement of mechanical potentiometers in analog trimming, calibration, and parameter adjustment circuits-emphasizing nonvolatile retention, rail-to-rail operation, and low-power serial control.

FAQ

What is the maximum allowable voltage across RH/VH and RL/VL terminals for X9313WS-3?

The X9313WS-3 supports ΔV = |VH – VL| up to 10 V, as specified for X9313W-series devices. This allows use in ±5 V systems without external clamping. Exceeding 10 V risks permanent damage per absolute maximum ratings. Always ensure VH and VL remain within –VCC to +VCC bounds, and verify voltage differentials against the 10 V limit during design review.

Does X9313WS-3 retain its wiper position after power cycling?

Yes, X9313WS-3 stores the wiper position in nonvolatile memory upon command (CS rising edge with INC = HIGH) and automatically recalls it at power-up. No external memory or MCU initialization is needed. The data retention specification is 100 years, ensuring calibration stability across the product's operational lifetime without maintenance.

Can X9313WS-3 operate with a 3.3 V supply?

Yes, X9313WS-3 is rated for VCC = 3 V to 5.5 V, making it fully compatible with 3.3 V systems. All logic thresholds (VIH = 2 V min, VIL = 0.8 V max) and functional specifications-including 32-tap operation, nonvolatile store, and ±VCC terminal voltage support-are guaranteed across this range. No level-shifting circuitry is required.

What is the wiper resistance of X9313WS-3 and how does it affect circuit performance?

X9313WS-3 has a typical wiper resistance of 40 Ω at VCC = 5 V (max 100 Ω). In voltage divider configurations, this adds series impedance that degrades gain accuracy and bandwidth-especially critical in high-frequency or low-impedance feedback paths. For precision applications, account for this resistance in transfer function calculations or use buffer amplifiers to isolate the wiper.

Is X9313WS-3 RoHS compliant and what package does it use?

Yes, X9313WS-3 is RoHS compliant and supplied in an 8-lead SOIC package (M8.15 drawing) with 100% matte tin (e3) termination. It meets IPC/JEDEC J-STD-020 reflow requirements and is qualified for wave soldering. The Pb-free construction ensures environmental compliance without sacrificing solderability or thermal performance in standard assembly processes.