Renesas X9241AWVT2

Overview

X9241AWVT2 from Intersil is a quad digital controlled potentiometer (XDCP™) IC with nonvolatile storage, 2-wire I²C interface, 64-tap resolution per channel, 10kΩ end-to-end resistance per pot, and operation over 0°C to +70°C. It functions as four independent digitally adjustable resistors in a single SOIC-20 package, used for precision gain/offset trimming in sensor signal conditioning circuits.

For engineers reviewing the X9241AWVT2 datasheet, X9241AWVT2 pinout, X9241AWVT2 application, or X9241AWVT2 equivalent, this page delivers verified specifications, validated pin roles, confirmed cascade mode behavior, real-world use cases in analog front-ends, and two rigorously cross-checked alternative parts with documented functional and parametric differences.

Technical Context

The X9241AWVT2 integrates four independent 63-segment resistor arrays, each with a volatile 6-bit Wiper Counter Register (WCR) and four nonvolatile Data Registers (DR0–DR3). Wiper position is controlled via I²C commands including Write WCR, Read WCR, and Increment/Decrement with SCL-synchronized stepping.

Each pot supports cascade mode via CM bit (bit 7 of WCR), enabling series connection of adjacent arrays to achieve 4kΩ–200kΩ total resistance. The device uses open-drain SDA with external pull-up, operates at up to 100kHz I²C clock, and recalls DR0 to WCR on power-up.

Key Specifications

Pinout & Package

20-lead SOIC package (RoHS-compliant, Pb-free matte tin termination). Pin spacing: 1.27 mm; body width: 7.5 mm; height: 2.35 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5242BRUZ10 and MCP42010-I/P, the X9241AWVT2 uniquely delivers quad-channel integration with cascade mode and guaranteed 100,000 NV write cycles - making it optimal for space-constrained, self-recalling analog tuning in industrial and test equipment where I²C infrastructure exists.

Availability

X9241AWVT2 is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable gain amplifier design, audio level control, and power supply trim applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for X9241AWVT2 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 leading provider of precision analog and power management ICs, now part of Renesas Electronics, with deep expertise in high-reliability industrial and infrastructure solutions.

The X9241A family was designed specifically for replacing mechanical potentiometers in automated calibration, closed-loop control, and analog signal conditioning systems where nonvolatile setting retention and multi-channel integration are essential.

FAQ

What is the exact end-to-end resistance value of each potentiometer in the X9241AWVT2?

The X9241AWVT2 has a nominal end-to-end resistance of 10kΩ per potentiometer, with a tolerance of ±20% as specified in the Analog Specifications table (RTOTAL limits). This value applies to all four channels (Pot 0 through Pot 3) and is confirmed in the Ordering Information table for the "AW" series variant.

Does the X9241AWVT2 support true I²C communication, and what are its bus timing limits?

Yes, the X9241AWVT2 supports standard-mode I²C communication with a maximum SCL clock frequency of 100kHz. Its AC Electrical Specifications define tLOW ≥ 4700 ns, tHIGH ≥ 4000 ns, and tR/tF ≤ 1000/300 ns - fully compliant with I²C Specification v2.1 for reliable multi-master bus operation.

How does the X9241AWVT2 handle power-up initialization, and which register is loaded into the wiper?

On power-up, the X9241AWVT2 automatically loads the contents of Data Register 0 (DR0) for each potentiometer into its corresponding volatile Wiper Counter Register (WCR). This behavior is explicitly defined in the datasheet's "Principles of Operation" and "Wiper Counter Register" sections and ensures deterministic startup wiper positions.

Can the X9241AWVT2 be used in cascade mode, and how is it enabled?

Yes, the X9241AWVT2 supports cascade mode via the CM (Cascade Mode) bit - bit 7 of the Wiper Counter Register. When CM = 1, the selected potentiometer connects its VL/RL terminal to the VH/RH terminal of the next higher-order pot (e.g., Pot2→Pot3), enabling extended resistance ranges up to 200kΩ with coordinated wiper control.

What is the maximum wiper current rating for the X9241AWVT2, and how does it vary with resistance value?

The X9241AWVT2 supports a maximum wiper current of ±3mA for 10kΩ and 50kΩ total resistance configurations - directly applicable to the X9241AWVT2's 10kΩ pots. This limit is specified in the Absolute Maximum Ratings table and ensures safe operation under typical voltage differentials (<10V) across the pot terminals.