Renesas X9241AWVI

Overview

X9241AWVI from Intersil is a quad digital controlled potentiometer (XDCP™) IC with nonvolatile storage, 2-wire I²C interface, 64-tap resolution per channel, ±3.0V to +5V terminal voltage range, and -40°C to +85°C industrial temperature rating. It functions as four independent digitally adjustable resistors in one monolithic CMOS device, used for precision gain/offset trimming, sensor calibration, and programmable biasing in embedded control systems.

For engineers reviewing the X9241AWVI datasheet, X9241AWVI pinout, X9241AWVI application, or X9241AWVI equivalent, this page delivers verified technical context, validated pin roles, confirmed 20-lead TSSOP package mapping, real-world use cases, and two rigorously cross-checked alternative parts with documented functional and application-level differences.

Technical Context

The X9241AWVI implements four independent resistor arrays-each with 63 discrete segments and 64 wiper positions-controlled via a standard 2-wire I²C bus operating up to 100 kHz. Each array features a volatile 6-bit Wiper Counter Register (WCR) and four nonvolatile Data Registers (DR0–DR3), enabling persistent storage of up to four wiper positions per potentiometer.

Cascade mode allows interconnection of adjacent arrays (e.g., POT2→POT3) using external wiring and CM bit control, supporting end-to-end resistance values from 4 kΩ to 200 kΩ. Wiper operation supports direct write, register transfer, and real-time increment/decrement via SCL clock pulses, with tSTPWV ≤ 500 µs wiper response after STOP.

Key Specifications

Pinout & Package

Package: 20-lead Thin Shrink Small Outline Package (TSSOP), RoHS-compliant, 0.65 mm lead pitch, body size 6.5 mm × 4.4 mm × 1.2 mm (max height). Pin 1 marked by notch or dot; leads are gull-wing, solderable with standard reflow profiles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5204BRZ10 and MCP42050-I/SL, the X9241AWVI uniquely combines I²C compatibility, automatic DR0 power-up recall, cascade mode for extended resistance, and bipolar terminal voltage support - making it optimal for industrial calibration and multi-rail analog systems requiring robust nonvolatile configuration.

Availability

X9241AWVI is available at Aetrix Electronics and suitable for industrial instrumentation, sensor calibration systems, and programmable power supplies requiring stable component supply, long-term lifecycle continuity, and RoHS-compliant packaging.

Supply support for X9241AWVI 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 leader in precision analog and power management ICs, delivering high-reliability solutions for industrial, infrastructure, and high-end consumer markets.

The X9241A family was designed specifically for digitally reconfigurable analog signal conditioning - targeting applications demanding nonvolatile trim, multi-channel integration, and robust operation across extended temperature ranges.

FAQ

What is the exact resistance value per potentiometer in the X9241AWVI?

The X9241AWVI is configured with four 10 kΩ resistor arrays, as explicitly specified in the Ordering Information table for part number X9241AWVIZ. This value is fixed per device variant and not user-selectable. Each array provides 64 discrete tap positions with ±20% end-to-end resistance tolerance.

Does the X9241AWVI support true bipolar operation with negative voltages?

Yes, the X9241AWVI supports terminal voltages from -3.0 V to +5.0 V on all VH/RH, VL/RL, and VW/RW pins relative to VSS. This enables use in AC-coupled or dual-supply analog circuits, such as audio signal paths or sensor interfaces with negative offset rails - confirmed in Absolute Maximum Ratings and Analog Specifications sections.

How does power-up initialization work in the X9241AWVI?

On power-up, the X9241AWVI automatically loads the contents of Data Register 0 (DR0) into the Wiper Counter Register (WCR) for each potentiometer. This ensures a known, nonvolatile wiper position at startup. The datasheet specifies that VCC must ramp first and reach 90% before applying signals to pot pins to guarantee reliable DR0 recall in the X9241AWVI.

Can multiple X9241AWVI devices share the same I²C bus?

Yes, up to 16 X9241AWVI devices can coexist on one I²C bus using the A0–A3 address pins to set unique 4-bit device addresses. Each device responds only when its full 8-bit slave address (0101xxxx) matches the transmitted address, enabling scalable multi-potentiometer systems without bus contention.

What is the maximum wiper current rating for the X9241AWVI at 10 kΩ?

For 10 kΩ total resistance arrays, the X9241AWVI supports a maximum wiper current of ±3 mA, as stated in the Absolute Maximum Ratings table. This limit applies across the full -40°C to +85°C operating range and must be observed to prevent degradation of wiper switch reliability or resistance drift in the X9241AWVI.