Renesas X9252YV24I-2.7

Overview

X9252YV24I-2.7 from Renesas Electronics is a quad digitally controlled potentiometer (XDCP™) with 256-tap resolution, 2.8 kΩ end-to-end resistance, 2-wire and Up/Down interfaces, and nonvolatile data registers - used for precision bias voltage trimming in analog front-ends, sensor calibration circuits, and programmable gain amplifiers.

For engineers reviewing the X9252YV24I-2.7 datasheet, X9252YV24I-2.7 pinout, X9252YV24I-2.7 application, or X9252YV24I-2.7 equivalent, key selection considerations include wiper current rating (±3 mA), standby current (<100 µA), power-on recall behavior, 24-pin TSSOP package compatibility, and dual-interface flexibility for embedded trim control.

Technical Context

The X9252YV24I-2.7 integrates four independent 255-segment resistor arrays, each with dedicated volatile Wiper Counter Registers (WCRs) and four nonvolatile Data Registers (DRs). Wiper position is controlled via either 2-wire bus (I²C-compatible, up to 400 kHz) or discrete Up/Down interface with chip select (CS), direction (U/D), and DCP-select pins (DS0/DS1).

At power-up, DR00–DR30 contents load into corresponding WCRs; hardware write protect (WP) disables nonvolatile writes when low. Each DCP supports three-terminal potentiometer or two-terminal variable resistor configurations, with ratiometric temperature coefficient of ±20 ppm/°C and absolute linearity of ±1 MI.

Key Specifications

Pinout & Package

24-pin TSSOP (4.4 mm wide, RoHS-compliant, Pb-free matte tin finish), moisture sensitivity level (MSL) compliant with IPC/JEDEC J-STD-020 at peak reflow ≥260°C.

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/P, the X9252YV24I-2.7 provides unique value through quad integration, dual interface redundancy, and guaranteed 100-year nonvolatile retention - reducing firmware overhead and enabling true set-and-forget analog tuning.

Availability

X9252YV24I-2.7 is available at Aetrix Electronics and suitable for precision analog trimming, sensor calibration, programmable gain control, and industrial HMI applications requiring stable component supply and long-term parameter retention.

Supply support for X9252YV24I-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 is a global semiconductor leader delivering microcontrollers, analog power, and connectivity solutions for automotive, industrial, and IoT markets.

The X9252YV24I-2.7 belongs to Renesas' XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical pots in high-reliability, programmable analog signal conditioning systems.

FAQ

What is the end-to-end resistance value of the X9252YV24I-2.7?

The X9252YV24I-2.7 has a nominal end-to-end resistance of 2.8 kΩ, confirmed in the ordering information table (FN8167 Rev 3.1, Page 2) and analog specifications section (Page 4). This value applies across the full operating temperature range (−40°C to +85°C) with ±20% tolerance, and is fixed per device variant - the "Y" suffix denotes the 2.8 kΩ version.

Does the X9252YV24I-2.7 support both I²C and discrete Up/Down control simultaneously?

No - the X9252YV24I-2.7 supports dual interfaces but not concurrently. When CS is low, the 2-wire interface is disabled and only Up/Down control (via U/D, DS0, DS1, SCL) is active. When CS is high, the 2-wire interface operates and Up/Down is inactive. This hardware-muxed design prevents bus contention and simplifies host interface selection.

How does power-on recall work in the X9252YV24I-2.7?

At power-up, the X9252YV24I-2.7 automatically loads the contents of nonvolatile registers DR00, DR10, DR20, and DR30 into their respective volatile Wiper Counter Registers (WCR0–WCR3). This occurs within 2 ms after VCC exceeds 2.7 V (t_D, Page 5), ensuring immediate valid wiper positions without MCU intervention - critical for fail-safe analog initialization.

What is the maximum allowable wiper current for the X9252YV24I-2.7?

The absolute maximum wiper current for the X9252YV24I-2.7 is ±3.0 mA, as specified in the Analog Specifications table (Page 4, parameter IW). Exceeding this limit risks long-term degradation of switch resistance and linearity. Derating is recommended for continuous operation above 25°C per the thermal limits in the Absolute Maximum Ratings table.

Can the X9252YV24I-2.7 be used as a two-terminal variable resistor?

Yes - each of the four DCPs in the X9252YV24I-2.7 can operate as a two-terminal variable resistor by connecting either RHn or RLn to the wiper RWn, leaving the other terminal open or tied to a fixed potential. The datasheet explicitly states this capability on Page 1 ("used as a three-terminal potentiometer or as a two terminal variable resistor") and confirms it in the Pin Descriptions section (Page 3).