Renesas X9241AWVIZT1

Overview

X9241AWVIZT1 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 10kΩ resistor array per potentiometer. It functions as four independent digitally adjustable resistors in a single TSSOP-20 package for precision analog control in embedded systems.

For engineers reviewing the X9241AWVIZT1 datasheet, X9241AWVIZT1 pinout, X9241AWVIZT1 application, or X9241AWVIZT1 equivalent, key selection considerations include its quad-channel 10kΩ configuration, -40°C to +85°C industrial temperature rating, RoHS-compliant TSSOP-20 package, nonvolatile wiper position recall from DR0 on power-up, and cascading capability across all four arrays.

Technical Context

The X9241AWVIZT1 implements four independent 63-element resistor arrays, each controlled by a 6-bit volatile Wiper Counter Register (WCR) and four nonvolatile Data Registers (DR0–DR3). Wiper position is set via I²C commands including direct write, register transfer, or increment/decrement mode.

Each potentiometer supports cascade mode via CM bit in WCR, enabling series connection of arrays for extended resistance values (e.g., 20kΩ–200kΩ). The device operates as a slave on a 2-wire bus with fixed 0101xxxx slave address prefix and user-configurable A0–A3 address inputs.

Key Specifications

Pinout & Package

Package: 20-lead Thin Shrink Small Outline Package (TSSOP), RoHS-compliant, body dimensions 6.5mm × 4.4mm × 1.2mm (per MDP0044 spec).

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5242BRUZ10 and MCP42010-I/ST, the X9241AWVIZT1 delivers unique quad-channel integration with cascading and guaranteed DR0 power-up recall-critical for multi-parameter analog tuning where layout space and deterministic startup behavior are constrained.

Availability

X9241AWVIZT1 is available at Aetrix Electronics and suitable for industrial motor control, laser diode biasing, programmable sensor calibration, and audio signal conditioning requiring stable component supply across extended temperature ranges.

Supply support for X9241AWVIZT1 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, now part of Renesas Electronics, with focus on industrial, infrastructure, and high-reliability applications.

The X9241A product line was designed for digitally reconfigurable analog signal conditioning in space-constrained, temperature-varying systems requiring nonvolatile parameter retention.

FAQ

What is the resistor value per potentiometer in X9241AWVIZT1?

The X9241AWVIZT1 is configured with 10kΩ resistor arrays for all four potentiometers, as specified in the Ordering Information table for the X9241AWVIZ* family. This value is fixed per device variant and cannot be altered post-manufacture. Each array consists of 63 resistive segments with 64 tap points, delivering consistent 10kΩ end-to-end resistance across the industrial temperature range.

Does X9241AWVIZT1 support I²C communication at standard speed?

Yes, X9241AWVIZT1 supports standard-mode I²C operation up to 100kHz clock frequency, with defined timing parameters including tLOW ≥ 4700ns, tHIGH ≥ 4000ns, and noise suppression time constant Ti = 20ns. Its open-drain SDA and Schmitt-triggered SCL inputs ensure robust bus interoperability with common microcontrollers and I²C masters without additional level-shifting.

How does power-up wiper position recall work in X9241AWVIZT1?

On power-up, X9241AWVIZT1 automatically loads the contents of Data Register 0 (DR0) for each potentiometer into its respective volatile Wiper Counter Register (WCR), establishing the initial wiper position. This nonvolatile recall occurs without host intervention and is guaranteed across the -40°C to +85°C operating range, ensuring deterministic startup behavior in unattended systems.

Can the four potentiometers in X9241AWVIZT1 be cascaded together?

Yes, X9241AWVIZT1 supports cascading of all four resistor arrays using the Cascade Mode (CM) bit in the WCR. When enabled, adjacent arrays connect VL/RL of a higher-order pot to VH/RH of the next lower-order pot (e.g., POT3→POT2→POT1→POT0), enabling total resistance values from 20kΩ to 200kΩ while maintaining 64-step resolution across the combined array.

What is the maximum wiper current rating for X9241AWVIZT1 at 10kΩ?

For the 10kΩ resistor arrays in X9241AWVIZT1, the maximum continuous wiper current is ±3mA, as specified in the Absolute Maximum Ratings table. This limit applies across the full operating temperature range and assumes ≤10V differential (ΔV = |VH − VL|) across the array. Exceeding this current risks accelerated wear or parametric shift due to resistive element stress.