Renesas X9241AYPZ

Overview

X9241AYPZ from Intersil is a quad digital controlled potentiometer (XDCP™) IC with nonvolatile storage, 2-wire I²C interface, 64-tap resolution per channel, and four independent 2kΩ resistor arrays in a 20-lead PDIP package. It functions as a digitally programmable analog adjustment element for precision biasing, gain control, and offset trimming in mixed-signal systems.

For engineers reviewing the X9241AYPZ datasheet, X9241AYPZ pinout, X9241AYPZ application, or X9241AYPZ equivalent, this device supports register-oriented wiper control, cascaded array configuration, power-up recall from DR0, and industrial-grade operation from 0°C to +70°C - critical for stable analog tuning in embedded instrumentation and sensor conditioning circuits.

Technical Context

The X9241AYPZ implements four independent CMOS resistor arrays, each with 63 series-connected segments and 64 selectable tap points controlled by a 6-bit volatile Wiper Counter Register (WCR). Each array pairs with four nonvolatile Data Registers (DR0–DR3), enabling persistent storage of up to four wiper positions per potentiometer.

Communication occurs via a standard 2-wire I²C-compatible interface with slave address formed by fixed 0101b prefix and user-configurable A0–A3 pins. The device supports global and individual register transfers, increment/decrement wiper stepping, and cascade mode where adjacent arrays are electrically linked to extend total resistance range from 4kΩ to 200kΩ.

Key Specifications

Pinout & Package

Package: 20-lead plastic dual in-line package (PDIP), RoHS-compliant, intended for through-hole wave soldering only (not reflow compatible).

Key Features

Applications

Equivalent & Alternatives

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

Compared with X9241AYPZ, X9241AYSIZ offers wider temperature tolerance and surface-mount compatibility at the cost of mechanical robustness in vibration-prone environments, while X9241AYVIZ trades package size for stricter solder process control - both retain identical 2kΩ quad functionality and register behavior.

Availability

X9241AYPZ is available at Aetrix Electronics and suitable for audio signal conditioning, sensor calibration, laser diode biasing, and industrial analog input scaling requiring stable component supply and long-term obsolescence management.

Supply support for X9241AYPZ 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 programmable analog trimming in embedded systems requiring nonvolatile wiper storage, multi-channel coordination, and I²C simplicity - targeting instrumentation, sensor interfaces, and calibration-critical applications.

FAQ

What is the exact resistor value per potentiometer in X9241AYPZ?

The X9241AYPZ integrates four 2kΩ resistor arrays - Pot 0, Pot 1, Pot 2, and Pot 3 are each precisely 2kΩ, as explicitly stated in the Ordering Information table for this part number. This value is fixed and not user-selectable; other variants (e.g., X9241AWPZ) offer different resistance values, but X9241AYPZ is defined solely as 2kΩ per channel.

Does X9241AYPZ support I²C standard-mode timing?

Yes, X9241AYPZ supports standard-mode I²C operation with maximum SCL clock frequency of 100 kHz, tLOW ≥ 4700 ns, tHIGH ≥ 4000 ns, and rise/fall times compliant with I²C specification. Its AC Electrical Specifications table confirms full compatibility with standard-mode timing budgets, including ACK polling and repeated start conditions.

Can X9241AYPZ be used in cascade mode, and how is it configured?

Yes, X9241AYPZ supports cascade mode via the CM (Cascade Mode) bit in the Wiper Counter Register. Setting bit 7 of any WCR to "1" links that potentiometer to the next higher-order array (e.g., WCR2 → Pot 3). External wiring must connect VL/RL of the higher array to VH/RH of the lower one, and only one wiper remains enabled - all others must be disabled via DW bits.

What is the power-up behavior of X9241AYPZ wiper positions?

On power-up, X9241AYPZ automatically loads the contents of Data Register 0 (DR0) for each potentiometer into its corresponding volatile Wiper Counter Register (WCR), restoring the last-saved wiper position. This recall occurs without host intervention and is guaranteed by the internal power-on reset circuit, provided VCC ramps within specified 0.2–50 V/ms range.

Is X9241AYPZ RoHS-compliant and what are its soldering limitations?

Yes, X9241AYPZ is RoHS-compliant with 100% matte tin plate e3 termination finish. However, its Pb-free PDIP package is qualified only for through-hole wave soldering - not reflow - due to thermal stress limitations. The datasheet explicitly states these packages are "not intended for use in Reflow solder processing applications."