Renesas X9241AWVZ

Overview

X9241AWVZ from Intersil is a quad digital controlled potentiometer (XDCP™) IC with nonvolatile storage, 2-wire I²C interface, 64-tap resolution per channel, 10kΩ end-to-end resistance per pot, and TSSOP-20 package. It functions as four independent digitally adjustable resistors for precision analog control in embedded systems requiring stable, reprogrammable gain or offset calibration.

For engineers reviewing the X9241AWVZ datasheet, X9241AWVZ pinout, X9241AWVZ application, or X9241AWVZ equivalent, this device supports register-oriented wiper control, cascaded resistor arrays up to 40kΩ, power-up recall from DR0, and industrial-grade operation from 0°C to +70°C - critical for sensor signal conditioning, power supply feedback tuning, and programmable filter design.

Technical Context

The X9241AWVZ implements four independent 63-element CMOS resistor arrays, each controlled by a 6-bit volatile Wiper Counter Register (WCR) and backed by four 8-bit nonvolatile Data Registers (DR0–DR3). Each potentiometer supports direct WCR write, DR↔WCR transfer, and real-time increment/decrement via I²C clock pulses.

It operates on a standard 2-wire bus with fixed 0101xxxx slave address prefix, A0–A3 address inputs, and open-drain SDA/SCL pins compliant with I²C timing (fSCL ≤ 100 kHz). Cascade mode enables inter-pot connection using CM bit (bit 7 of WCR), while DW bit (bit 6) disables individual wipers for isolation.

Key Specifications

Pinout & Package

20-lead Thin Shrink Small Outline Package (TSSOP), RoHS-compliant, 6.5 mm × 4.4 mm body, 0.65 mm lead pitch, 1.2 mm max height. Pin 1 marked by notch or dot; leads are gull-wing, surface-mount compatible.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5204BRUZ10 and MCP42050-I/P, the X9241AWVZ offers guaranteed 10kΩ resistance matching, I²C compatibility with minimal GPIO usage, and true nonvolatile DR0 power-up recall - making it optimal for self-initializing, calibration-critical analog systems.

Availability

X9241AWVZ is available at Aetrix Electronics and suitable for audio equipment manufacturing, industrial power supply design, sensor calibration systems, and programmable analog filter development requiring stable component supply and long-term lifecycle support.

Supply support for X9241AWVZ 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 for embedded analog control applications requiring nonvolatile, multi-channel digital resistance adjustment with minimal interface overhead and robust data retention.

FAQ

What is the exact end-to-end resistance value of the X9241AWVZ?

The X9241AWVZ has a nominal end-to-end resistance of 10kΩ per potentiometer, as explicitly specified in the Ordering Information table for this part number. This value applies to all four channels and is confirmed for the 0°C to +70°C operating range. Tolerance is not stated for X9241AWVZ specifically, but the family's typical RTOTAL variation is ±20% unless otherwise noted in characterization data.

Does the X9241AWVZ retain its wiper position after power cycling?

Yes, the X9241AWVZ retains wiper position across power cycles via nonvolatile Data Register 0 (DR0). At power-up, DR0 contents are automatically loaded into the volatile Wiper Counter Register (WCR), restoring the last stored setting. This behavior is guaranteed and does not require host intervention, making X9241AWVZ suitable for unattended recalibration-critical systems.

Can the four potentiometers in the X9241AWVZ be cascaded, and what is the resulting resistance?

Yes, the X9241AWVZ supports cascading via the CM (Cascade Mode) bit in each WCR. With all four 10kΩ pots cascaded, the total end-to-end resistance is 40kΩ. External connections require linking VLx/RLx of one pot to VH(x+1)/RH(x+1) of the next, with only one wiper enabled (DW = 0) and others disabled (DW = 1) to avoid loading conflicts.

What is the maximum clock frequency supported by the X9241AWVZ I²C interface?

The X9241AWVZ supports an I²C clock frequency (fSCL) up to 100 kHz, as specified in the AC Electrical Specifications. This limit ensures reliable communication under standard I²C timing constraints including tLOW ≥ 4700 ns and tHIGH ≥ 4000 ns. Exceeding 100 kHz may result in missed acknowledges or corrupted transfers.

Is the X9241AWVZ RoHS-compliant and what is its package type?

Yes, the X9241AWVZ is RoHS-compliant and supplied in a 20-lead TSSOP package with matte tin (e3) termination finish. The package dimensions are 6.5 mm × 4.4 mm × 1.2 mm max height, and it is qualified for surface-mount reflow soldering per J-STD-020 moisture sensitivity level requirements.