Renesas X9250UV24

Overview

X9250UV24 from Intersil is a quad digitally controlled potentiometer (XDCP™) with 256-tap resolution per channel, SPI serial interface, dual analog supply support (±2.7V to ±5.5V), and nonvolatile wiper position storage. It operates over -40°C to +85°C in a 24-lead TSSOP package and delivers 40Ω typical wiper resistance at 5V, enabling precision analog control in mixed-signal systems.

For engineers reviewing the X9250UV24 datasheet, X9250UV24 pinout, X9250UV24 application, or X9250UV24 equivalent, this device serves as a drop-in replacement for mechanical potentiometers in programmable gain stages, offset calibration circuits, and multi-channel sensor conditioning where digital reconfiguration, long-term setting retention, and low-power standby (<5µA) are required.

Technical Context

The X9250UV24 integrates four independent 255-segment resistor arrays with CMOS switch-controlled wipers, each driven by an 8-bit volatile Wiper Counter Register (WCR) and backed by four 8-bit nonvolatile Data Registers (DR0–DR3). Its SPI interface supports full-duplex communication with rising-edge data latching on SI and falling-edge data output on SO, and includes hardware write protection (WP) and HOLD for serial bus arbitration.

It supports true dual-supply operation: V+ and V− independently set analog rail limits (±2.7V to ±5.5V), while VCC powers the digital core (2.7V–5.5V). Power-up automatically loads DR0 into each WCR, and nonvolatile writes complete in ≤10ms with internal high-voltage programming circuitry.

Key Specifications

Pinout & Package

Package: 24-lead TSSOP (4.4mm body width, MDP0044 footprint), RoHS-compliant Pb-free plus anneal finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5242BRUZ100 and MCP42050-I/SL, the X9250UV24 uniquely combines quad-channel integration, true bipolar analog supply capability (V+/V−), and guaranteed 100-year nonvolatile storage - making it the only option for space-constrained, safety-critical, or maintenance-free multi-rail analog systems.

Availability

X9250UV24 is available at Aetrix Electronics and suitable for instrumentation offset calibration, programmable gain amplifiers, bipolar voltage regulator trim, and multi-channel sensor linearization requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for X9250UV24 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 (now part of Renesas Electronics) is a semiconductor manufacturer specializing in precision analog, power management, and interface ICs for industrial, aerospace, and communications markets.

The X9250UV24 belongs to Intersil's XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimmers in high-reliability analog signal conditioning where programmability, nonvolatility, and multi-channel integration are essential.

FAQ

What is the operating temperature range for the X9250UV24?

The X9250UV24 is rated for industrial operation from −40°C to +85°C. This range is confirmed in the Ordering Information table (X9250UV24I variant) and applies to all electrical specifications including wiper resistance, resolution, and nonvolatile write timing. The device maintains full functionality across this range without derating.

Does the X9250UV24 support true bipolar analog operation?

Yes, the X9250UV24 supports true bipolar analog operation via dedicated V+ and V− pins, rated from ±2.7V to ±5.5V. Each of the four potentiometer arrays references these rails independently, enabling direct connection to op-amps or comparators requiring symmetric analog supplies - a capability not found in most single-supply digital potentiometers.

How many nonvolatile data registers does the X9250UV24 provide per potentiometer?

The X9250UV24 provides four 8-bit nonvolatile Data Registers (DR0–DR3) for each of its four potentiometers. These registers store wiper positions or system parameters and retain data for 100 years. DR0 is automatically loaded into the Wiper Counter Register at power-up, providing deterministic startup behavior.

What is the maximum SPI clock frequency supported by the X9250UV24?

The X9250UV24 supports a maximum SPI clock frequency of 2.0 MHz, as specified in the AC Timing section. This allows full 16-bit instruction sequences (e.g., Write Data Register) to complete in under 8µs, enabling rapid reconfiguration of all four potentiometers in real-time control loops.

Can the X9250UV24 be used as a two-terminal variable resistor?

Yes, the X9250UV24 can be configured as a two-terminal variable resistor by connecting either VH/RH or VL/RL to the wiper (VW/RW) terminal, leaving the other fixed terminal open or grounded. This configuration is explicitly supported in the Applications Information section and maintains the same 256-step resolution and nonvolatile storage.