Renesas X9259UV24Z-2.7

Overview

X9259UV24Z-2.7 from Renesas (formerly Intersil) is a quad digitally controlled potentiometer (XDCP™) IC integrating four independent 256-tap, 50kΩ end-to-end resistance DCPs on a single CMOS die. It operates from 2.7V to 5.5V, features 2-wire (I²C-compatible) serial interface, nonvolatile data registers with 100-year retention, and <5µA standby current. It serves as programmable gain/voltage/offset control in precision analog signal chains - e.g., trimming amplifier bias or setting reference voltages in sensor interfaces.

For engineers reviewing the X9259UV24Z-2.7 datasheet, X9259UV24Z-2.7 pinout, X9259UV24Z-2.7 application, or X9259UV24Z-2.7 equivalent, key selection criteria include its 2.7–5.5V supply range, TSSOP-24 package, 256-step resolution (0.4%), wiper resistance (300Ω typ. at 3V), and hardware write-protect (WP) functionality for register integrity.

Technical Context

The X9259UV24Z-2.7 implements four independent digital potentiometers using resistor ladders and CMOS switch matrices, each with an 8-bit volatile Wiper Counter Register (WCR) controlling wiper position and four 8-bit nonvolatile Data Registers (DR0–DR3) for persistent storage. Power-up loads DR#0 into the corresponding WCR, enabling deterministic startup behavior without host initialization.

Its 2-wire interface supports read/write of WCRs and DRs, transfer between them (volatile/nonvolatile), and real-time increment/decrement via SCL clocking while holding SDA high/low. The WP pin disables nonvolatile writes when asserted low, preventing accidental register corruption during operation.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5242BRUZ10 and MCP42010-I/SL, the X9259UV24Z-2.7 delivers higher integration (four independent DCPs), guaranteed nonvolatile storage with 100-year retention, and hardware write protection - making it optimal for field-deployed equipment requiring robust, maintenance-free analog tuning.

Availability

X9259UV24Z-2.7 is available at Aetrix Electronics and suitable for industrial sensor interfaces, programmable power supplies, audio subsystems, and embedded calibration systems requiring stable component supply and long-term obsolescence management.

Supply support for X9259UV24Z-2.7 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

Renesas Electronics Corporation (formerly Intersil) is a global semiconductor leader specializing in microcontrollers, analog power, and mixed-signal solutions for industrial, automotive, and infrastructure markets.

The X9259UV24Z-2.7 belongs to Renesas' XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimpots in automated calibration, closed-loop feedback, and programmable analog front-ends.

FAQ

What is the supply voltage range for the X9259UV24Z-2.7?

The X9259UV24Z-2.7 operates from 2.7V to 5.5V, supporting both 3.3V and 5V logic systems without external regulation. This range is explicitly defined in the Absolute Maximum Ratings table and validated across commercial temperature (0°C to +70°C). Operation outside this window may cause undefined behavior or damage.

How many independent potentiometers does the X9259UV24Z-2.7 integrate?

The X9259UV24Z-2.7 integrates four fully independent digitally controlled potentiometers (DCPs), each with its own RH, RL, and RW terminals, dedicated Wiper Counter Register (WCR), and four nonvolatile Data Registers (DR0–DR3). This is confirmed in the Functional Diagram, Pin Descriptions, and Ordering Information tables of the FN8169 datasheet.

Does the X9259UV24Z-2.7 support nonvolatile storage of wiper positions?

Yes, the X9259UV24Z-2.7 provides four 8-bit nonvolatile Data Registers per DCP (DR#0 through DR#3), with 100-year data retention and 100,000 write cycles per bit. Upon power-up, DR#0 values are automatically loaded into the corresponding WCRs - a core feature documented in the Principles of Operation section.

What package type is used for the X9259UV24Z-2.7?

The X9259UV24Z-2.7 is packaged in a 24-lead TSSOP (thin shrink small outline package), RoHS-compliant, with package drawing M24.173. This is specified in the Ordering Information table and verified in the Pin Configuration diagram on page 3 of FN8169 Rev 6.00.

Can the X9259UV24Z-2.7 be used as a two-terminal variable resistor?

Yes, the X9259UV24Z-2.7 supports both three-terminal potentiometer and two-terminal variable resistor configurations. Each DCP's RH and RL terminals serve as fixed ends, while RW acts as the adjustable terminal - explicitly stated in the Introduction and Circuit Level Applications sections of the datasheet.