Renesas X9241AUV

Overview

X9241AUV from Intersil is a quad digital controlled potentiometer (XDCP™) IC implementing four independent 64-tap nonvolatile resistor arrays with 2-wire I²C-compatible interface, ±3.0V to +5V terminal voltage rating, and cascading capability for combined resistance values up to 200kΩ. It serves as a precision programmable analog adjustment element in calibration, gain/offset control, and sensor signal conditioning circuits.

For engineers reviewing the X9241AUV datasheet, X9241AUV pinout, X9241AUV application, or X9241AUV equivalent, this page delivers verified electrical parameters, confirmed TSSOP-20 package mapping, real-world use scenarios, and two validated alternative parts with documented functional and application-level differences.

Technical Context

The X9241AUV integrates four monolithic CMOS resistor arrays-each with 63 resistive segments and 64 wiper positions-controlled by volatile Wiper Counter Registers (WCR) and backed by four nonvolatile Data Registers (DR0–DR3) per pot. Power-up automatically loads DR0 into each WCR.

It uses a standard 2-wire serial interface with SCL/SDA pins, supports slave address configuration via A0–A3, and implements cascade mode via bit-7 of the WCR to link adjacent arrays. Wiper position updates occur within 500 µs after STOP generation (tSTPWV), and nonvolatile writes require ≤10 ms (tWR).

Key Specifications

Pinout & Package

Package: 20-lead Thin Shrink Small Outline Package (TSSOP), 6.5 mm × 4.4 mm body, 0.65 mm lead pitch, RoHS-compliant matte tin termination.

Key Features

Applications

Equivalent & Alternatives

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

Compared with X9241AUV, AD5242BRUZ10 offers finer granularity but sacrifices integration and cascading; MCP42050-I/P trades nonvolatility for SPI compatibility and higher resolution - neither matches X9241AUV's combination of quad channels, 64-tap precision, and guaranteed power-up DR0 recall in a single TSSOP-20 package.

Availability

X9241AUV is available at Aetrix Electronics and suitable for instrumentation calibration, laser diode bias control, audio level adjustment, and sensor offset compensation requiring stable component supply and long-lifecycle support.

Supply support for X9241AUV 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 designs precision analog and power management ICs for industrial, infrastructure, and high-end consumer markets, emphasizing reliability and long-term manufacturability.

The X9241A family delivers digitally programmable analog adjustment with nonvolatile memory and I²C interface - engineered for calibration-critical systems where repeatability, longevity, and integration density are essential.

FAQ

What is the resistance value per potentiometer in the X9241AUV?

The X9241AUV is configured with 50kΩ end-to-end resistance for all four potentiometer arrays, as specified in the Ordering Information table under "POTENTIOMETER ORGANIZATION" for part numbers ending in "UV". This value is fixed per device variant and cannot be altered post-manufacture.

Does the X9241AUV support true I²C communication?

Yes, the X9241AUV implements a fully compliant 2-wire interface compatible with standard I²C protocols: it responds to 7-bit slave addresses (0101xxxx format), supports START/STOP conditions, ACK polling, and adheres to timing limits including tLOW ≥4700 ns and fSCL ≤100 kHz - verified in FN8164 Rev 7.00 AC Electrical Specifications.

How does the X9241AUV handle power-up initialization?

On power-up, the X9241AUV automatically loads the contents of Data Register 0 (DR0) into each potentiometer's volatile Wiper Counter Register (WCR), ensuring repeatable wiper positions without host intervention. This behavior is guaranteed only if VCC ramps cleanly to 90% before applying signals to VH/VL/VW pins, per Power-up Requirements on page 11 of FN8164.

Can the X9241AUV wiper terminals be disabled independently?

Yes - each potentiometer's wiper can be electrically isolated by setting bit-6 (DW bit) of its Wiper Counter Register to "1". When disabled, the corresponding VW/RW pin floats and draws negligible leakage current (<1 µA), enabling hardware mute or open-circuit states without external switches - confirmed in Cascade Mode section (page 9) and DC Electrical Specifications (page 10).

What is the maximum allowable voltage across any X9241AUV potentiometer terminal?

The absolute maximum voltage difference between VH/RH and VL/RL terminals is 10 V (ΔV = |VH/RH − VL/RL| ≤ 10 V), and individual terminal voltages must remain within –3.0 V to +5 V referenced to VSS, as defined in Absolute Maximum Ratings (page 10). Exceeding these limits risks permanent damage to the internal FET switches and resistor arrays.