Renesas X9252YV24IZ-2.7

Overview

X9252YV24IZ-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. It operates from 2.7 V to 5.5 V, features <100 µA standby current, and is used for precision bias voltage trimming in analog front-ends and sensor signal conditioning circuits.

For engineers reviewing the X9252YV24IZ-2.7 datasheet, X9252YV24IZ-2.7 pinout, X9252YV24IZ-2.7 application, or X9252YV24IZ-2.7 equivalent, key selection considerations include wiper position recall at power-up, hardware write protection (WP), DCP select logic (DS0/DS1), and dual-interface concurrency constraints (CS-driven interface arbitration).

Technical Context

The X9252YV24IZ-2.7 integrates four independent 255-segment resistor arrays, each with a volatile 8-bit Wiper Counter Register (WCR) and four nonvolatile Data Registers (DR00–DR33). Wiper position is selected via decoded WCR output controlling CMOS switches between RH/RL terminals.

It supports two mutually exclusive control paths: 2-wire bus (SCL/SDA, A0–A2 address, WP-enabled nonvolatile writes) and Up/Down interface (CS-gated, U/D edge-triggered, DS0/DS1 DCP selection). Power-up loads DR00/DR10/DR20/DR30 into corresponding WCRs; no external initialization required.

Key Specifications

Pinout & Package

Package: 24-lead TSSOP (4.4 mm width), RoHS-compliant, moisture sensitivity level per JEDEC J-STD-020.

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 X9252YV24IZ-2.7 uniquely combines quad-channel density, dual-interface flexibility (2-wire + Up/Down), hardware write protection, and 2.8 kΩ resistance optimized for low-noise bias networks - making it the only option supporting autonomous local adjustment while retaining nonvolatile calibration integrity.

Availability

X9252YV24IZ-2.7 is available at Aetrix Electronics and suitable for instrumentation calibration, sensor bias programming, audio level control, and programmable reference divider applications requiring stable component supply across industrial temperature ranges (-40°C to +85°C).

Supply support for X9252YV24IZ-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 SoC solutions for automotive, industrial, and IoT markets.

The X9252YV24IZ-2.7 belongs to Renesas' XDCP™ (Digitally Controlled Potentiometer) family, designed specifically for replacing mechanical trimmers in high-reliability analog signal conditioning and calibration systems.

FAQ

What is the default wiper position loaded at power-up for X9252YV24IZ-2.7?

At power-up, the X9252YV24IZ-2.7 automatically loads the contents of nonvolatile Data Registers DR00, DR10, DR20, and DR30 into the corresponding volatile Wiper Counter Registers (WCR0–WCR3). This recall completes within 2 ms after VCC exceeds 2.7 V, ensuring immediate operational readiness without host intervention.

Can X9252YV24IZ-2.7 operate with a 3.3 V supply?

Yes, the X9252YV24IZ-2.7 supports a supply voltage range of 2.7 V to 5.5 V, making it fully compatible with standard 3.3 V systems. All specifications-including 400 kHz I²C timing, wiper resistance, and nonvolatile write endurance-are guaranteed across this range, including at 3.3 V nominal operation.

How does the hardware write protect (WP) pin function on X9252YV24IZ-2.7?

When the WP pin is driven LOW, the X9252YV24IZ-2.7 disables all nonvolatile write operations-both 2-wire writes to Data Registers and Up/Down "Store" commands. This hardware-level lock prevents accidental overwriting of calibrated values, even during firmware errors or ESD transients, while allowing full volatile WCR updates.

What is the maximum wiper current rating for X9252YV24IZ-2.7?

The X9252YV24IZ-2.7 specifies a maximum wiper current of ±3 mA per DCP. Exceeding this limit risks long-term degradation of switch resistance and linearity. For applications requiring higher current (e.g., LED bias), external buffer amplifiers must be used to isolate the wiper from load current.

Does X9252YV24IZ-2.7 support simultaneous update of all four DCPs via 2-wire interface?

Yes, the X9252YV24IZ-2.7 supports page-write operations: writing to address 0x00 updates WCR0–WCR3 in one transaction, and writing to DR page addresses (e.g., 0x04 for DRi0) updates all four corresponding Data Registers simultaneously-enabling atomic multi-channel calibration without race conditions.