Renesas X9241AWSIZ

Overview

X9241AWSIZ from Intersil is a quad digital controlled potentiometer (XDCP™) IC with nonvolatile storage, 2-wire I²C interface, 64-tap resolution per pot, and -40°C to +85°C industrial temperature range. It integrates four independent resistor arrays (each 10kΩ), volatile wiper counter registers (WCR), and four nonvolatile data registers (DR0–DR3) per channel. Used in precision analog trimming, sensor calibration, and programmable gain control circuits where EEPROM-backed setting retention is required.

For engineers reviewing the X9241AWSIZ datasheet, X9241AWSIZ pinout, X9241AWSIZ application, or X9241AWSIZ equivalent, this page delivers verified specifications including 10kΩ end-to-end resistance per pot, 2-wire serial protocol timing (fSCL ≤ 100 kHz), wiper response time (tSTPWV = 500 µs), cascade mode capability, and SOIC-20 RoHS-compliant packaging - all confirmed for X9241AWSIZ specifically.

Technical Context

The X9241AWSIZ implements four independent 63-segment resistor arrays, each controlled by a 6-bit volatile Wiper Counter Register (WCR) decoded to select one of 64 tap points. Each array supports three-terminal potentiometer or two-terminal variable resistor configurations with terminal voltage limits of -3.0 V to +5 V.

It uses a register-oriented 2-wire interface with slave address format 0101[A3:A0], supporting nine instructions including Read/Write WCR, Read/Write Data Registers, and global transfers. Cascade mode (CM bit) enables inter-pot linking for extended resistance values up to 200kΩ, while the DW bit disables wiper output for isolation.

Key Specifications

Pinout & Package

20-lead SOIC package (RoHS-compliant, Pb-free, 0.300" wide body). Pinout matches X9241A family: dual-row, 1.27 mm pitch, pin 1 marked with notch or dot.

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 X9241AWSIZ uniquely delivers quad 10kΩ pots with nonvolatile register banks, cascade capability, and wiper disable - enabling compact, self-contained analog tuning in industrial I²C systems without external memory or glue logic.

Availability

X9241AWSIZ is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable power supplies, audio level control, and PLC analog output scaling requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for X9241AWSIZ 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 (now part of Renesas Electronics) designs precision analog and power management ICs for industrial, infrastructure, and high-reliability applications.

The X9241A family was engineered for embedded systems requiring field-programmable analog trimming with EEPROM-backed persistence - targeting sensor conditioning, power supply feedback, and calibration-critical instrumentation.

FAQ

What is the exact end-to-end resistance value specified for X9241AWSIZ?

The X9241AWSIZ is configured with 10kΩ end-to-end resistance for all four potentiometers, as explicitly stated in the Ordering Information table (Pot 0 = 10k, Pot 1 = 10k, Pot 2 = 10k, Pot 3 = 10k). This value is fixed per device variant and confirmed in FN8164 Rev 7.00 datasheet page 2.

Does X9241AWSIZ support true I²C communication, and what are its timing limits?

Yes, X9241AWSIZ supports standard I²C protocol with 7-bit slave address (0101xxxx) and full read/write functionality. Its AC specs define fSCL ≤ 100 kHz, tLOW ≥ 4700 ns, tHIGH ≥ 4000 ns, and tR/tF ≤ 1000/300 ns - all verified in the FN8164 datasheet Tables on pages 12–13.

How does the nonvolatile memory in X9241AWSIZ operate during power-up?

On power-up, X9241AWSIZ automatically loads the contents of Data Register 0 (DR0) for each pot into its corresponding volatile Wiper Counter Register (WCR). This ensures repeatable startup behavior without host intervention, and is guaranteed across the -40°C to +85°C range.

Can X9241AWSIZ be used in cascade mode, and how is it enabled?

Yes, X9241AWSIZ supports cascade mode via the CM (Cascade Mode) bit in the Wiper Counter Register. Setting bit 7 of any WCR to '1' links that pot's VL/RL to the next higher pot's VH/RH. External wiring and wiper disable (DW bit) on non-active pots are required - fully documented in FN8164 pages 9–10.

What package type and lead finish does X9241AWSIZ use?

X9241AWSIZ uses a 20-lead SOIC package (0.300" wide) with Pb-free matte tin plating (e3 termination), compliant with RoHS and qualified for reflow soldering per IPC/JEDEC J-STD-020. This matches the "20 Ld SOIC" designation in the Ordering Information table.