Renesas X9408YV24Z-2.7

Overview

X9408YV24Z-2.7 from Intersil is a quad digitally controlled potentiometer (XDCP™) with 64-tap resistor arrays per channel, 2-wire I²C-compatible interface, 2.7V to 5.5V VCC operation, and 10kΩ end-to-end resistance. It functions as four independent programmable voltage dividers in analog signal conditioning, bias adjustment, and gain control circuits for industrial sensor interfaces and precision power supply feedback loops.

For engineers reviewing the X9408YV24Z-2.7 datasheet, X9408YV24Z-2.7 pinout, X9408YV24Z-2.7 application, or X9408YV24Z-2.7 equivalent, key selection criteria include its Pb-free TSSOP-24 package, nonvolatile wiper position storage across four data registers, hardware write-protect (WP) input, and dual-supply analog section (V+/V−) supporting ±2.7V to ±5.5V operation.

Technical Context

The X9408YV24Z-2.7 implements four independent 63-element resistor arrays with CMOS-switched wipers controlled by volatile 6-bit Wiper Counter Registers (WCR). Each potentiometer supports direct WCR writes, register-to-WCR transfers, and real-time increment/decrement via SCL edge-triggered commands.

It uses a standard 2-wire bus protocol with fixed 0101b device type identifier and user-configurable A0–A3 address inputs enabling up to 16 devices on one bus. Nonvolatile writes to its four 6-bit Data Registers require high-voltage cycle timing (5–10 ms), with automatic DR0-to-WCR load at power-up.

Key Specifications

Pinout & Package

Package: 24-lead TSSOP (4.4mm wide), Pb-free (RoHS compliant), moisture sensitivity level (MSL) rated per IPC/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 AD5204BRUZ10 and MCP42050-I/SL, the X9408YV24Z-2.7 uniquely integrates dual-supply analog operation, hardware write protection, and guaranteed 100-year nonvolatile storage-making it optimal for safety-critical, bipolar-signal, and field-calibrated systems.

Availability

X9408YV24Z-2.7 is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable power supply feedback, audio channel balance control, and medical instrument gain scaling requiring stable component supply and long-term calibration integrity.

Supply support for X9408YV24Z-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

Intersil (now part of Renesas Electronics) is a semiconductor company specializing in precision analog, power management, and interface ICs for industrial, aerospace, and medical applications.

The X9408 family was designed to replace mechanical potentiometers in high-reliability analog trimming applications, emphasizing nonvolatile storage, low noise, and dual-supply flexibility for bipolar signal chains.

FAQ

What is the absolute maximum V+ and V− rating for X9408YV24Z-2.7?

The X9408YV24Z-2.7 supports V+ up to +5.5V and V− down to −5.5V, with a maximum differential (V+ − V−) of 12V. These ratings are specified in the Absolute Maximum Ratings table of FN8191 Rev.4.00. Exceeding these limits risks permanent damage to the internal resistor arrays and switch matrices.

Does X9408YV24Z-2.7 support true I²C communication?

Yes, X9408YV24Z-2.7 implements a fully compliant 2-wire bus interface compatible with standard I²C protocols-including start/stop conditions, acknowledge polling, and 7-bit addressing (with fixed 0101b prefix and user-defined A0–A3 bits). It operates at up to 400kHz clock frequency and meets all AC timing requirements in the datasheet.

How does the WP pin affect nonvolatile writes in X9408YV24Z-2.7?

When the WP pin is driven LOW, X9408YV24Z-2.7 disables all nonvolatile write operations-including Write Data Register and XFR WCR-to-DR commands. This prevents accidental corruption of stored calibration values during power transitions or firmware updates, while still allowing volatile WCR updates and reads.

What is the power-up behavior of X9408YV24Z-2.7 wiper positions?

At power-up, X9408YV24Z-2.7 automatically loads the contents of Data Register 0 (DR0) into each channel's volatile Wiper Counter Register (WCR). This ensures a known, factory-programmable default setting for all four potentiometers without host intervention-critical for fail-safe system initialization.

Can X9408YV24Z-2.7 operate with only VCC and GND, omitting V+ and V−?

No. X9408YV24Z-2.7 requires all three supplies: VCC (2.7–5.5V), V+ (up to +5.5V), and V− (down to −5.5V). The analog resistor arrays and wiper switches are powered exclusively by V+/V−; omitting them results in undefined wiper behavior and potential latch-up. VCC alone powers only the digital interface logic.