Renesas X9241AUVZ

Overview

X9241AUVZ from Intersil is a quad digital controlled potentiometer (XDCP™) with nonvolatile storage, 2-wire I²C-compatible interface, 64-tap resolution per channel, and 20-lead TSSOP package. It integrates four independent resistor arrays (2kΩ/10kΩ/50kΩ configurable), each with volatile wiper counter register (WCR) and four nonvolatile data registers (DR0–DR3), enabling precise analog voltage/current adjustment in programmable power supplies and sensor calibration circuits.

For engineers reviewing the X9241AUVZ datasheet, X9241AUVZ pinout, X9241AUVZ application, or X9241AUVZ equivalent, this device supports cascaded resistor arrays up to 200kΩ, operates from 0°C to +70°C, features ±3mA max wiper current, 100-year data retention, and 100,000-cycle endurance-critical for industrial control and embedded system reconfiguration.

Technical Context

The X9241AUVZ implements four monolithic CMOS resistor arrays, each with 63 discrete segments and FET-switched wiper terminals controlled by a 6-bit WCR. Each array supports three end-to-end resistance values (2kΩ, 10kΩ, 50kΩ) and can be cascaded externally via VH/RH–VL/RL interconnection.

Its 2-wire serial interface uses open-drain SDA with pull-up requirement, supports slave address configuration via A0–A3 pins (0101xxxx format), and enables register-oriented operations including direct WCR write, DR↔WCR transfer, global register updates, and real-time increment/decrement wiper control with SCL-synchronized stepping.

Key Specifications

Pinout & Package

Package: 20-lead Thin Shrink Small Outline Package (TSSOP), RoHS-compliant, body dimensions 6.5mm × 4.4mm × 1.2mm (D × E × A).

Key Features

Applications

Equivalent & Alternatives

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

Compared with X9241AUVZ, AD5242BRUZ10 offers finer resolution but lacks integrated quad topology and cascading, while MCP42010-I/P provides simpler SPI control but forfeits nonvolatile wiper recall and multi-array flexibility-making X9241AUVZ optimal for compact, self-contained analog reconfiguration in commercial-grade systems.

Availability

X9241AUVZ is available at Aetrix Electronics and suitable for programmable power supplies, sensor signal conditioning, industrial motor control feedback, and audio equipment level adjustment requiring stable component supply and long-term production continuity.

Supply support for X9241AUVZ 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 consumer electronics markets.

The X9241A series was designed for digitally reconfigurable analog signal paths in commercial-grade embedded systems, emphasizing nonvolatile parameter storage, low-power operation, and robust I²C interoperability.

FAQ

What is the maximum wiper current rating for X9241AUVZ?

The X9241AUVZ supports ±3mA maximum wiper current for 10kΩ and 50kΩ resistor arrays, and ±4mA for the 2kΩ array. This rating applies under recommended operating conditions (0°C to +70°C) and must be derated at elevated temperatures per the DCP Wiper Current De-rating Curve in the datasheet. Exceeding these limits risks irreversible damage to the internal FET switches controlling the wiper position.

Does X9241AUVZ retain wiper settings after power loss?

Yes, X9241AUVZ retains wiper settings after power loss via its nonvolatile data registers (DR0–DR3). On power-up, the device automatically loads DR0 into the volatile wiper counter register (WCR), ensuring repeatable startup behavior. To preserve a specific wiper position across power cycles, users must explicitly store it in DR0 using the "XFR WCR to Data Register" command before shutdown.

Can X9241AUVZ resistor arrays be cascaded, and how is it implemented?

Yes, X9241AUVZ supports cascading of adjacent resistor arrays (e.g., POT0→POT1, POT1→POT2) by connecting VL/RL of the higher-order pot to VH/RH of the lower-order pot. Cascade mode is enabled by setting the CM bit (bit 7) in the target WCR. Only one wiper remains active (others disabled via DW bit), and wiper movement automatically transitions between arrays during increment/decrement operations.

What is the I²C slave address format for X9241AUVZ?

The X9241AUVZ uses an 8-bit I²C slave address where the most significant 4 bits are fixed as 0101 (device type identifier), and the least significant 4 bits are determined by the logic states of A0–A3 pins. For example, if A3–A0 = 0000, the full slave address is 01010000 (0x50). The device responds only when this full address matches the serial data stream following a START condition.

Is X9241AUVZ RoHS-compliant and what package does it use?

Yes, X9241AUVZ is RoHS-compliant and packaged in a 20-lead Thin Shrink Small Outline Package (TSSOP) with matte tin (e3) termination finish. This Pb-free package supports standard reflow soldering processes and is rated for commercial temperature operation (0°C to +70°C). The package dimensions are 6.5mm × 4.4mm × 1.2mm (length × width × height).