Renesas X9241AWVIZ

Overview

X9241AWVIZ from Intersil is a quad digital controlled potentiometer (XDCP™) with nonvolatile storage, 2-wire I²C interface, 64-tap resolution per channel, and -40°C to +85°C industrial temperature range. Each of its four independent resistor arrays is factory-configured to 10kΩ, enabling precise analog voltage division or gain control in programmable power supplies and sensor calibration circuits.

For engineers reviewing the X9241AWVIZ datasheet, X9241AWVIZ pinout, X9241AWVIZ application, or X9241AWVIZ equivalent, this device delivers deterministic wiper recall on power-up, cascade-capable resistor networks up to 200kΩ, and EEPROM endurance of 100,000 write cycles - critical for field-deployed instrumentation requiring long-term parameter retention without external memory.

Technical Context

The X9241AWVIZ implements four independent 63-element resistor arrays, each controlled by a volatile 6-bit Wiper Counter Register (WCR) and backed by four nonvolatile Data Registers (DR0–DR3). Wiper position is set via I²C commands including direct WCR write, register-to-WCR transfer, or real-time increment/decrement using SCL clock edges.

Cascade mode is enabled via bit-7 of the WCR, allowing inter-pot connection (e.g., POT2 → POT3) to synthesize higher resistance values; only one wiper remains active during cascade operation, with others electrically disabled via bit-6 (DW) control. All arrays share a single 2-wire bus with slave address determined by A0–A3 pins and fixed device type identifier 0101b.

Key Specifications

Pinout & Package

20-lead Thin Shrink Small Outline Package (TSSOP), RoHS-compliant, 0.65mm lead pitch, 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 AD5242BRUZ10 and MCP42010-I/P, the X9241AWVIZ uniquely combines quad-channel integration, 10kΩ per pot, cascade capability, and guaranteed industrial-temperature nonvolatile operation - making it optimal for space-constrained, self-contained analog tuning in embedded control systems.

Availability

X9241AWVIZ is available at Aetrix Electronics and suitable for programmable power supplies, sensor signal conditioning, industrial PLC analog outputs, and audio level control requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for X9241AWVIZ 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 computing markets.

The X9241A family was designed for embedded analog tuning applications requiring nonvolatile parameter storage, multi-channel integration, and robust I²C control - targeting instrumentation, automation, and programmable power systems.

FAQ

What is the resistor value configuration of the X9241AWVIZ?

The X9241AWVIZ is factory-configured with four identical 10kΩ resistor arrays, each offering 64 discrete tap points. This uniform value enables matched gain scaling and simplifies system-level calibration. The ordering information confirms Pot 0–3 = 10kΩ, and the device does not support field reconfiguration of nominal resistance values. Each array maintains ±10% tolerance across temperature and lifetime.

How does the X9241AWVIZ handle power-up wiper positioning?

The X9241AWVIZ automatically loads the contents of Data Register 0 (DR0) into the Wiper Counter Register (WCR) of each potentiometer upon power-up. This ensures deterministic startup behavior without host intervention. To preserve a specific wiper position across power cycles, the host must explicitly store it in DR0 using a nonvolatile write command before power-down.

Can the X9241AWVIZ resistor arrays be cascaded, and how is it configured?

Yes, the X9241AWVIZ supports cascading via the Cascade Mode (CM) bit in the WCR. Setting bit-7 = 1 links adjacent arrays (e.g., POT2 to POT3), enabling synthesized resistance values up to 200kΩ. External wiring must connect VLx/RLx of the higher-order pot to VHx/RHx of the lower-order one, and only one wiper remains active - others are disabled using the DW bit.

What is the maximum operating voltage on the VH, VL, and VW pins of the X9241AWVIZ?

The X9241AWVIZ specifies a terminal voltage range of -3.0V to +5V on all VH/RH, VL/RL, and VW/RW pins relative to VSS. This allows bipolar signal handling and compatibility with rail-to-rail op-amps. The absolute maximum rating for ΔV (VH – VL) is 10V, and wiper current is limited to ±3mA for 10kΩ arrays to prevent resistor degradation.

Does the X9241AWVIZ support I²C standard-mode timing?

Yes, the X9241AWVIZ fully complies with I²C standard-mode timing: maximum SCL frequency of 100kHz, minimum tLOW = 4700ns, minimum tHIGH = 4000ns, and rise/fall times ≤1000ns/300ns respectively. It also implements ACK polling to confirm completion of nonvolatile writes, ensuring reliable firmware-driven calibration updates in real-time systems.