Renesas X9313WMZ-3

Overview

X9313WMZ-3 from Intersil is a digitally controlled potentiometer (XDCP™) with 32 linear tap positions, 10 kΩ end-to-end resistance, 3-wire serial interface (CS/U/D/INC), and nonvolatile wiper position storage. It operates from 3V to 5.5V, supports terminal voltages from –VCC to +VCC, and is used for precision analog trimming in voltage reference circuits, sensor calibration, and programmable gain amplifiers.

For engineers reviewing the X9313WMZ-3 datasheet, X9313WMZ-3 pinout, X9313WMZ-3 application, or X9313WMZ-3 equivalent, key selection criteria include its MSOP-8 package, ±20% RTOTAL tolerance, 40 Ω typical wiper resistance at 5V, 100,000-cycle endurance, and compatibility with low-power embedded systems requiring power-up recall of last setting.

Technical Context

The X9313WMZ-3 implements a 31-element resistor array with make-before-break wiper switching, controlled by an up/down counter decoded to select one of 32 tap points. Its nonvolatile memory stores wiper position on CS↑ with INC HIGH, enabling automatic restoration after power cycling.

It uses CMOS logic with VCC = 3–5.5V, active current ≤3 mA, standby current ≤500 µA, and supports bidirectional terminal voltage swing (–VCC to +VCC). The device features temperature-compensated resistance, ±300 ppm/°C RTOTAL TC, and ratiometric TC of ±20 ppm/°C - critical for stable divider ratios across temperature.

Key Specifications

Pinout & Package

Package: 8-lead MSOP (Pb-free, RoHS compliant), dimensions per JEDEC MO-187-AA (outline M8.118); body size 3.0 mm × 3.0 mm × 0.85 mm, pitch 0.65 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5171BRMZ-10 and MCP41010-I/P, the X9313WMZ-3 uniquely combines GPIO-friendly 3-wire control, true bipolar terminal capability, and guaranteed nonvolatile recall - making it optimal for embedded systems where reliability, simplicity, and analog robustness are prioritized over resolution or bus standardization.

Availability

X9313WMZ-3 is available at Aetrix Electronics and suitable for voltage reference trimming, sensor calibration, audio level control, and programmable gain amplifier scaling requiring stable component supply and long-term parameter retention.

Supply support for X9313WMZ-3 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 is a leading provider of precision analog and power management solutions, acquired by Renesas Electronics in 2017; products target industrial, infrastructure, and high-reliability embedded markets.

The X9313 family was designed specifically for solid-state replacement of mechanical potentiometers in analog signal conditioning, emphasizing nonvolatile storage, wide supply flexibility, and robust terminal voltage handling for real-world mixed-signal environments.

FAQ

What is the maximum allowable voltage across RH and RL terminals for X9313WMZ-3?

The X9313WMZ-3 supports ΔV = |VH − VL| up to 10 V, as specified for X9313W-series devices in the Absolute Maximum Ratings table. This allows use in ±5 V systems or single-supply 10 V applications without external clamping. Exceeding this differential voltage risks permanent damage to the internal resistor array or switches.

Does X9313WMZ-3 retain its wiper position after power removal?

Yes, the X9313WMZ-3 stores the wiper position in nonvolatile memory upon a valid store command (CS rising edge with INC HIGH), and automatically recalls that value at next power-up. Data retention is rated for 100 years under normal operating conditions, ensuring reliable operation across extended shelf life or infrequent-use deployments.

Can X9313WMZ-3 be used with a 3.3V microcontroller GPIO directly?

Yes, the X9313WMZ-3 operates from 3V to 5.5V and has TTL-compatible inputs (VIH ≥2V, VIL ≤0.8V), so standard 3.3V GPIO outputs meet logic thresholds without level shifters. Its 3-wire interface uses only CS, U/D, and INC - all driven by push-pull outputs - eliminating need for pull-ups or open-drain configuration.

What is the wiper resistance specification for X9313WMZ-3 and how does it affect circuit performance?

The X9313WMZ-3 has a typical wiper resistance of 40 Ω at VCC = 5V (max 100 Ω). In a 10 kΩ potentiometer, this adds <1% series error to the wiper output impedance. For high-impedance nodes (e.g., op-amp inputs), it introduces negligible DC error but may impact bandwidth in RF or fast transient applications due to RC time constants with stray capacitance.

Is X9313WMZ-3 RoHS compliant and what package type does it use?

Yes, the X9313WMZ-3 is RoHS compliant and supplied in an 8-lead MSOP package (Pb-free, outline M8.118). The "MZ" suffix explicitly denotes the Pb-free MSOP variant, with matte tin (e3) termination compatible with both SnPb and lead-free reflow soldering processes per IPC/JEDEC J-STD-020.