Renesas X9241AMVIT2

Overview

X9241AMVIT2 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 2kΩ/10kΩ/50kΩ selectable resistor arrays-used for precision analog trimming in programmable power supplies, sensor calibration circuits, and audio level control systems.

For engineers reviewing the X9241AMVIT2 datasheet, X9241AMVIT2 pinout, X9241AMVIT2 application, or X9241AMVIT2 equivalent, this page delivers verified electrical specs, validated TSSOP-20 package mapping, confirmed cascade mode operation, real-world wiper response timing (tSTPWV = 500 µs), and two field-tested alternative parts with documented register-level compatibility.

Technical Context

The X9241AMVIT2 implements four independent 63-element resistor arrays with FET-switched wipers controlled by 6-bit volatile Wiper Counter Registers (WCR). Each array supports three end-to-end resistance values (2kΩ, 10kΩ, 50kΩ) and cascading across adjacent channels via CM bit control in the WCR.

It uses a standard 2-wire I²C-compatible bus with slave address format 0101[A3:A0], supports ACK polling during 10 ms nonvolatile writes, and provides four nonvolatile Data Registers (DR0–DR3) per potentiometer for storing up to four wiper positions with 100-year data retention and 100,000 write cycles.

Key Specifications

Pinout & Package

Package: 20-lead TSSOP (RoHS-compliant, Pb-free matte tin finish, JEDEC MSL-3 compatible).

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 X9241AMVIT2 uniquely delivers quad-channel integration, hardware-supported cascade mode for extended resistance ranges, and guaranteed DR0 auto-load at power-up-making it optimal for compact, self-contained analog trimming in industrial and embedded systems requiring persistent calibration.

Availability

X9241AMVIT2 is available at Aetrix Electronics and suitable for programmable power supplies, sensor calibration circuits, audio level control systems, and industrial DAC scaling applications requiring stable component supply, long-term lifecycle continuity, and RoHS-compliant packaging.

Supply support for X9241AMVIT2 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, serving industrial, infrastructure, and high-end consumer markets with high-reliability, low-power solutions.

The X9241A product line was designed for digitally reconfigurable analog signal conditioning-enabling factory calibration, field tuning, and adaptive system behavior without mechanical components or external memory.

FAQ

What is the operating temperature range for the X9241AMVIT2?

The X9241AMVIT2 is rated for industrial operation from −40°C to +85°C. This range is confirmed in the Ordering Information table on page 2 of FN8164 Rev 7.00, where "X9241AMVIZ" (identical package and marking suffix) is explicitly listed with −40°C to +85°C temperature grade. The "I" in "MVIT2" denotes Industrial temperature range, consistent with Intersil's part numbering convention.

Does the X9241AMVIT2 support cascading between its four potentiometers?

Yes, the X9241AMVIT2 supports cascading via the Cascade Mode (CM) bit in the Wiper Counter Register. When CM = 1 in WCR2, POT2 links to POT3; similarly, POT0 can cascade to POT1, and all four arrays may be chained. External connections require VH/RH of lower-order POT tied to VL/RL of higher-order POT, with only one wiper enabled (DW = 0) per chain, as defined in Figure 9 and detailed on page 9 of FN8164 Rev 7.00.

What is the maximum wiper current rating for the X9241AMVIT2 at 5 V supply?

At 5 V supply, the X9241AMVIT2 supports ±4 mA maximum wiper current for 2 kΩ total resistance arrays, and ±3 mA for 10 kΩ or 50 kΩ arrays. These values are specified in the Absolute Maximum Ratings table on page 10 of FN8164 Rev 7.00 and apply across the full −40°C to +85°C operating range, with derating above 70°C per the DCP Wiper Current De-rating Curve.

How does the X9241AMVIT2 handle power-up initialization?

On power-up, the X9241AMVIT2 automatically loads the contents of Data Register 0 (DR0) into the corresponding Wiper Counter Register (WCR) for each potentiometer. This behavior is explicitly stated on page 1 of the datasheet and reinforced in the "Wiper Counter Register" section on page 8. To ensure reliable recall, VCC must ramp first and reach 90% of final value before applying signals to VH/VL/VW pins, per the Power-up Requirements on page 11.

Is the X9241AMVIT2 pin-compatible with other packages in the X9241A family?

Yes, the X9241AMVIT2 uses the same 20-lead TSSOP footprint and pinout as all other X9241A variants in TSSOP packaging (e.g., X9241AMVZ, X9241AMVIZ), including identical pin assignments for SCL, SDA, A0–A3, VH/VL/VW groups, VCC, and VSS. This is confirmed in the Pin Descriptions (page 3), Pinout diagram (page 3), and Ordering Information (page 2) of FN8164 Rev 7.00.