Renesas X9241AYV

Overview

X9241AYV from Intersil is a quad digital controlled potentiometer (XDCP™) IC with nonvolatile storage, 2-wire I²C interface, 64-tap resolution per channel, and 2kΩ end-to-end resistance per potentiometer. It operates from 5V ±10%, supports -40°C to +85°C industrial temperature range, and is packaged in a 20-lead TSSOP. It serves as programmable analog gain/offset adjustment in precision sensor signal conditioning circuits.

For engineers reviewing the X9241AYV datasheet, X9241AYV pinout, X9241AYV application, or X9241AYV equivalent, this page delivers verified specifications, validated pin functions, confirmed cascade-mode operation, real-world use cases for multi-channel calibration, and two technically documented alternative parts with explicit functional and parametric distinctions.

Technical Context

The X9241AYV integrates four independent 63-element resistor arrays, each with a volatile 6-bit Wiper Counter Register (WCR) and four nonvolatile Data Registers (DR0–DR3). Wiper position is controlled via I²C commands including Write WCR, Read WCR, and Increment/Decrement, with power-up auto-recall from DR0.

Each potentiometer supports terminal voltages of +5V and -3.0V, wiper current up to ±4mA (for 2kΩ), and features cascade mode enabled by CM bit in WCR to combine adjacent arrays-e.g., cascading POT2 to POT3 extends resistance range while requiring external VL/RH interconnection and wiper disable on all but one channel.

Key Specifications

Pinout & Package

Package: 20-lead TSSOP (RoHS-compliant, Pb-free), 6.5mm × 4.4mm body, 0.65mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with X9241AYV, AD5242BRUZ10 offers finer resolution but halves channel count and removes cascade capability, while MCP42010-I/P trades integration and nonvolatility for SPI compatibility and lower per-channel cost - making X9241AYV optimal for compact, self-contained, multi-channel industrial calibration.

Availability

X9241AYV is available at Aetrix Electronics and suitable for motor control bias calibration, multi-sensor signal conditioning, and programmable power supply trim requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for X9241AYV 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 high-performance analog and power management ICs for industrial, infrastructure, and computing markets, emphasizing precision, reliability, and thermal robustness.

The X9241A family was developed specifically for embedded systems requiring nonvolatile, multi-channel analog trimming - targeting applications where mechanical potentiometers fail due to wear, vibration, or recalibration needs.

FAQ

What is the exact resistance value and tolerance of each potentiometer in X9241AYV?

The X9241AYV contains four 2kΩ potentiometers with ±20% end-to-end resistance tolerance (RTOTAL), as specified in the Analog Specifications table on page 10 of FN8164 Rev 7.00. This tolerance applies to the total resistance between VHx and VLx terminals per channel and is measured at room temperature under recommended operating conditions. The X9241AYV datasheet does not specify tighter tolerance bins for this variant.

Does X9241AYV support cascade mode, and how is it configured?

Yes, X9241AYV supports cascade mode via the CM (Cascade Mode) bit in the Wiper Counter Register. When CM = 1 in WCR2, POT2 cascades to POT3; similarly, CM = 1 in WCR0 cascades POT0 to POT1. External connections require linking VLx of the higher-order pot to VHx of the lower-order pot, disabling all but one wiper using the DW bit, and ensuring proper voltage limits across combined arrays. Configuration is done via I²C Write WCR command.

What is the maximum wiper current rating for X9241AYV, and how is it affected by resistance value?

X9241AYV supports ±4mA maximum wiper current for 2kΩ total resistance (RTOTAL), as stated in the Absolute Maximum Ratings table (page 10). This rating is derated over temperature and assumes ≤10V differential (ΔV) between VHx and VLx. For higher RTOTAL values (e.g., 10kΩ or 50kΩ variants), max wiper current drops to ±3mA - but X9241AYV's fixed 2kΩ configuration maintains the ±4mA rating across its full operating temperature range.

How does power-up behavior work in X9241AYV, and what sequence is required for reliable DR0 recall?

X9241AYV recalls DR0 contents to the corresponding WCR on power-up, but correct operation requires strict sequencing: VCC must reach ≥90% of final value before applying signals to VHx/VLx/VWx pins. The VCC ramp rate must stay within 0.2–50 V/ms (tRVCC), and glitches on VCC must remain below 100mV. Failure to follow this sequence may result in incomplete or corrupted DR0-to-WCR transfer, causing incorrect initial wiper positions.

Is X9241AYV pin-compatible with other X9241A variants such as X9241AYSIZ or X9241AMVIZ?

X9241AYV shares identical 20-lead TSSOP pinout and electrical interface with all X9241A family members, including X9241AYSIZ and X9241AMVIZ. However, resistance values differ: X9241AYV is 2kΩ per pot, while X9241AYSIZ is also 2kΩ (industrial temp), and X9241AMVIZ is 2/10/10/50kΩ per pot. Thus, pinout and protocol are identical, but analog performance (gain range, current drive) varies - requiring design validation if substituting across resistance variants.