Renesas X9315WMZ-2.7T1

Overview

X9315WMZ-2.7T1 from Intersil is a digitally controlled potentiometer (XDCP™) implementing a 31-element resistor array with 32 wiper tap points, nonvolatile memory for power-up recall, and 3-wire serial interface (CS/U/D/INC). It operates from 2.7V to 5.5V, delivers 10kΩ end-to-end resistance ±20%, and supports commercial temperature range (0°C to +70°C) in an 8-lead MSOP package - used for precision analog trimming in sensor signal conditioning circuits.

For engineers reviewing the X9315WMZ-2.7T1 datasheet, X9315WMZ-2.7T1 pinout, X9315WMZ-2.7T1 application, or X9315WMZ-2.7T1 equivalent, this device serves as a solid-state replacement for mechanical potentiometers where repeatable, programmable resistance adjustment, low power consumption (<5µA standby), and EEPROM-retained settings are required in space-constrained industrial control modules.

Technical Context

The X9315WMZ-2.7T1 integrates a 5-bit up/down counter, nonvolatile memory storage circuitry, and a resistor array with make-before-break wiper switching. Its control logic responds to negative-edge-triggered INC pulses while U/D sets direction, and CS enables selection and initiates nonvolatile store on rising edge with INC high.

It uses CMOS technology with temperature-compensated resistive elements, achieving ±300 ppm/°C total resistance TC and ±20 ppm/°C ratiometric TC. Wiper resistance is 400–1000Ω at 2.7V supply, and absolute linearity error is limited to ±1 MI (minimum increment = RTOTAL/31).

Key Specifications

Pinout & Package

Package: 8-lead Mini Small Outline Plastic (MSOP), Pb-free, JEDEC MO-187AA compliant, dimensions 3.0mm × 3.0mm × 0.85mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5243BRMZ10 and MCP41010-I/P, the X9315WMZ-2.7T1 uniquely combines 3-wire simplicity, guaranteed nonvolatile recall, and proven temperature stability in a compact MSOP - making it optimal for cost-sensitive, space-constrained applications where deterministic startup and analog repeatability are mandatory.

Availability

X9315WMZ-2.7T1 is available at Aetrix Electronics and suitable for sensor calibration, audio signal conditioning, laser driver biasing, and power supply feedback tuning requiring stable component supply and RoHS-compliant packaging.

Supply support for X9315WMZ-2.7T1 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 Corporation (now part of Renesas Electronics) designs high-performance analog and mixed-signal ICs for power management, precision analog, and interface applications.

The X9315WMZ-2.7T1 belongs to Intersil's XDCP™ family of digitally controlled potentiometers, engineered specifically to replace electromechanical trimmers in industrial, medical, and communications equipment where reliability, programmability, and small form factor are essential.

FAQ

What is the maximum wiper current rating for the X9315WMZ-2.7T1?

The X9315WMZ-2.7T1 has a maximum wiper current rating of ±3.75mA under recommended operating conditions. This limit ensures safe operation without exceeding the 10mW maximum power rating or inducing excessive self-heating that could degrade linearity or long-term stability. Exceeding this current may cause irreversible resistance drift or wiper contact degradation over time.

Does the X9315WMZ-2.7T1 retain its wiper position after power cycling?

Yes, the X9315WMZ-2.7T1 stores the wiper position in nonvolatile memory and automatically recalls it on power-up. This behavior is guaranteed by design: the last valid wiper setting written to memory remains intact for up to 100 years, enabling fully autonomous startup without host MCU intervention - a key differentiator versus volatile digital potentiometers like the MCP41010.

Can the X9315WMZ-2.7T1 operate from a 3.3V supply?

Yes, the X9315WMZ-2.7T1 is fully specified for operation from 2.7V to 5.5V, making it compatible with standard 3.3V logic systems. At 3.3V, its active current remains ≤80µA, standby current ≤5µA, and wiper resistance falls within the 400–1000Ω range - ensuring reliable interface with 3.3V microcontrollers and consistent analog performance across the full supply range.

What is the absolute linearity error specification for the X9315WMZ-2.7T1?

The X9315WMZ-2.7T1 specifies absolute linearity error as ±1 MI (minimum increment), where MI = RTOTAL/31 ≈ 322Ω for the 10kΩ version. This means the actual wiper voltage deviates from the ideal linear transfer function by no more than ±322Ω worth of resistance at any tap position - critical for precision gain/offset calibration where monotonicity and predictable step size are required.

Is the X9315WMZ-2.7T1 RoHS compliant and lead-free?

Yes, the X9315WMZ-2.7T1 is RoHS compliant and features 100% matte tin (e3) termination finish on its 8-lead MSOP package (PKG DWG # M8.118). It meets IPC/JEDEC J-STD-020 reflow requirements for lead-free assembly and is compatible with both SnPb and Pb-free soldering processes - verified per Intersil TB347 and TB379 documentation.