Renesas X9241AMV

Overview

X9241AMV from Intersil is a quad digital controlled potentiometer (XDCP™) IC with nonvolatile storage, 2-wire I²C interface, 64-tap resolution per channel, 2kΩ/10kΩ/50kΩ resistor array options, and operation over 0°C to +70°C in a 20-lead TSSOP package. It functions as four independent digitally adjustable resistors for precision analog control in embedded signal conditioning circuits.

For engineers reviewing the X9241AMV datasheet, X9241AMV pinout, X9241AMV application, or X9241AMV equivalent, this page delivers verified specifications, validated pin functions, confirmed cascade-mode operation, real-world use cases in programmable gain stages and offset trimming, and two rigorously cross-checked alternative parts with documented differences.

Technical Context

The X9241AMV implements four independent CMOS resistor arrays-each with 63 segments and 64 tap points-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 I²C-compatible interface with slave address formed by fixed 0101b prefix plus user-configurable A0–A3 pins. Each pot supports cascade mode via CM bit (bit 7 of WCR), enabling combined resistance values from 4kΩ to 200kΩ across adjacent arrays.

Key Specifications

Pinout & Package

20-lead Thin Shrink Small Outline Package (TSSOP), RoHS-compliant, with 0.65mm lead pitch and exposed thermal pad not connected internally. Pin 1 marked by notch or dot; pin 10 is VSS, pin 20 is VCC.

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 X9241AMV uniquely delivers quad-channel integration with factory-matched resistor values (2k/10k/10k/50k), automatic DR0 power-up recall, and hardware-enabled cascade mode - making it optimal for compact, self-initializing analog control systems requiring multi-range resistance tuning.

Availability

X9241AMV is available at Aetrix Electronics and suitable for programmable gain amplifiers, DC offset calibration circuits, audio balance controls, and LED current regulation requiring stable component supply across industrial and instrumentation designs.

Supply support for X9241AMV 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 high-end consumer markets.

The X9241A family was designed specifically for digitally reconfigurable analog signal conditioning - targeting applications demanding nonvolatile state retention, multi-channel coordination, and robust I²C interoperability in space-constrained systems.

FAQ

What is the exact resistor value configuration for X9241AMV?

The X9241AMV is factory-configured with four distinct resistor values: Potentiometer 0 = 2kΩ, Potentiometer 1 = 10kΩ, Potentiometer 2 = 10kΩ, and Potentiometer 3 = 50kΩ. This specific combination is fixed for the X9241AMVZ ordering variant and cannot be altered post-manufacture. The values are confirmed in the "Ordering Information" table on page 2 of FN8164 Rev 7.00.

Does X9241AMV support true I²C compliance including repeated START and clock stretching?

The X9241AMV implements a 2-wire serial interface compatible with I²C timing and electrical conventions (open-drain SDA/SCL, ACK/NACK, START/STOP), but does not support clock stretching. It responds to repeated START conditions and adheres to standard I²C timing limits (tLOW ≥ 4700ns, tHIGH ≥ 4000ns, fSCL ≤ 100kHz), as verified in the AC Electrical Specifications section (page 12) of FN8164 Rev 7.00.

How does power-up wiper initialization work in X9241AMV?

On power-up, the X9241AMV automatically loads the contents of Data Register 0 (DR0) for each potentiometer into its corresponding volatile Wiper Counter Register (WCR). This ensures repeatable startup wiper positions without host intervention. The behavior is guaranteed only if VCC ramps monotonically at ≥0.2 V/ms and reaches 90% before pot pins are energized, per the Power-up Requirements section (page 11) of FN8164 Rev 7.00.

Can X9241AMV operate with supply voltages other than 5V?

No - the X9241AMV is specified exclusively for VCC = 5V ±10% (4.5V to 5.5V), as stated in the Absolute Maximum Ratings and Recommended Operating Conditions (page 10 of FN8164 Rev 7.00). Operation outside this range risks functional failure or accelerated wear; the device lacks internal voltage regulation and is not rated for 3.3V or dual-supply operation.

What is the maximum allowable voltage across any potentiometer terminal pair in X9241AMV?

The absolute maximum voltage difference |VH/RH − VL/RL| across any single potentiometer's end-to-end terminals is 10V, as defined in the Absolute Maximum Ratings table (page 10 of FN8164 Rev 7.00). Exceeding this limit risks irreversible damage to the internal resistor array or switch FETs, regardless of whether the device is powered or unpowered.