Renesas X9259UV24IZ

Overview

X9259UV24IZ from Intersil is a quad digitally controlled potentiometer (XDCP™) IC integrating four independent 256-tap, 50kΩ end-to-end resistance DCPs in a single monolithic CMOS device. It operates from 2.7V to 5.5V, features 2-wire serial interface control, nonvolatile data register storage, and supports three-terminal potentiometer or two-terminal variable resistor configurations for precision analog trimming in voltage regulators and sensor signal conditioning.

For engineers reviewing the X9259UV24IZ datasheet, X9259UV24IZ pinout, X9259UV24IZ application, or X9259UV24IZ equivalent, this page delivers verified electrical parameters, validated TSSOP-24 pin mapping, confirmed industrial temperature range (–40°C to +85°C), and real-world use cases including LCD contrast adjustment, RF bias control, and amplifier gain trimming - all grounded in FN8169 Rev 6.00.

Technical Context

The X9259UV24IZ implements four independent digital potentiometers using resistor arrays and CMOS switches, each with an 8-bit volatile Wiper Counter Register (WCR) and four 8-bit nonvolatile Data Registers (DR00–DR33). Wiper position is updated via 2-wire bus commands including Write/Read WCR, XFR between DR and WCR, and Increment/Decrement mode for fine-tuning.

It supports hardware write protection (WP pin active-low), device addressing via A0–A3 pins (enabling up to 16 devices on one bus), and automatic power-up loading of DR#0 values into corresponding WCRs. Standby current is <5µA, and nonvolatile writes require high-voltage cycle timing (tWR = 5–10ms).

Key Specifications

Pinout & Package

Package: 24-lead TSSOP (RoHS-compliant, M24.173 drawing), surface-mount, 0.65mm pitch, 7.8mm × 4.4mm footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5204BRUZ10 and MCP41010-I/P, the X9259UV24IZ offers unique value through its 2-wire interface compatibility, 50kΩ resistance optimized for higher-impedance analog circuits, hardware write protection, and true quad-channel nonvolatile configuration - making it optimal for industrial calibration and multi-sensor systems requiring deterministic startup behavior.

Availability

X9259UV24IZ is available at Aetrix Electronics and suitable for industrial sensor interfaces, RF power control, LCD display modules, and audio subsystems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for X9259UV24IZ 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) designs high-performance analog and mixed-signal ICs for industrial, communications, and computing markets, emphasizing precision, reliability, and low-power operation.

The X9259UV24IZ belongs to Intersil's XDCP™ family of digitally controlled potentiometers, engineered specifically for replacing mechanical trimpots in automated calibration, closed-loop bias control, and programmable analog signal conditioning systems.

FAQ

What is the operating voltage range for the X9259UV24IZ?

The X9259UV24IZ operates from 2.7V to 5.5V, supporting both 3.3V and 5V logic systems without external level shifters. This range is explicitly specified in the Ordering Information table and Absolute Maximum Ratings section of FN8169 Rev 6.00, and applies across its full industrial temperature range (–40°C to +85°C). The "-2.7" suffix in the ordering row X9259UV24IZ-2.7 confirms this extended low-voltage capability.

Does the X9259UV24IZ retain wiper settings after power loss?

Yes - the X9259UV24IZ retains wiper positions via four nonvolatile Data Registers per DCP, each rated for 100,000 write cycles and 100-year data retention. While the volatile Wiper Counter Register (WCR) resets on power-down, the device automatically loads DR#0 into the corresponding WCR at power-up, ensuring repeatable startup states. This behavior is documented in the Power Up and Down Recommendations and Data Registers sections of FN8169.

How many independent potentiometers does the X9259UV24IZ integrate?

The X9259UV24IZ integrates four fully independent digitally controlled potentiometers (DCPs) on a single die. Each has dedicated RH, RL, and RW pins, its own 8-bit Wiper Counter Register, and four associated nonvolatile Data Registers (DR#0–DR#3). This quad architecture is confirmed in the device title, Functional Diagram, Pin Descriptions, and Circuit Level Applications sections of FN8169 Rev 6.00.

What package type is used for the X9259UV24IZ?

The X9259UV24IZ uses a 24-lead TSSOP package (RoHS-compliant, package drawing M24.173), as stated in the Ordering Information table on page 2 of FN8169 Rev 6.00. This distinguishes it from the SOIC variant (X9259US24IZ) and confirms its compact, surface-mount footprint optimized for high-density industrial PCBs.

Can the X9259UV24IZ be used as a two-terminal variable resistor?

Yes - the X9259UV24IZ supports both three-terminal potentiometer and two-terminal variable resistor configurations. Per the datasheet introduction and Circuit Level Applications, users may connect either RH or RL to the wiper (RW) to configure each DCP as a programmable rheostat, enabling use in current-setting, gain-control, and bias-adjustment circuits without external components.