Renesas X9313WMIZ-3

Overview

X9313WMIZ-3 from Intersil is a digitally controlled potentiometer (XDCP™) with 32 linear tap positions, 10 kΩ end-to-end resistance, ±V_CC terminal voltage capability, and nonvolatile wiper position storage. It operates from 3V to 5.5V, consumes ≤3 mA active current, and is housed in an 8-lead MSOP package rated for –40°C to +85°C industrial temperature range. It serves as a solid-state replacement for mechanical potentiometers in precision analog trimming applications.

For engineers reviewing the X9313WMIZ-3 datasheet, X9313WMIZ-3 pinout, X9313WMIZ-3 application, or X9313WMIZ-3 equivalent, key selection criteria include its 3-wire serial interface timing (t_CYC = 2 µs), wiper resistance (40 Ω typ. at V_CC = 5V), absolute linearity (±1 MI), ratiometric tempco (±20 ppm/°C), and industrial-grade reliability (100,000 endurance cycles, 100-year data retention).

Technical Context

The X9313WMIZ-3 implements a 31-element resistor array with make-before-break wiper switching, enabling glitch-free tap transitions. Its 5-bit up/down counter drives a decoder that selects one of 32 wiper positions, with CS/U/D/INC control logic determining movement direction and nonvolatile store timing.

Wiper position is retained across power cycles via on-chip nonvolatile memory; recall occurs automatically at power-up. Terminal voltages support rail-to-rail operation (–V_CC to +V_CC), and the device supports both three-terminal potentiometer and two-terminal variable resistor configurations with ±4.4 mA max wiper current.

Key Specifications

Pinout & Package

Package: 8-lead MSOP (Pb-free, RoHS compliant), dimensions per JEDEC MO-187-AA (M8.118), body size 3.0 mm × 3.0 mm × 1.1 mm max.

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 X9313WMIZ-3 uniquely combines ±V_CC terminal operation, nonvolatile recall, and minimal 3-wire GPIO control-making it optimal for robust, self-contained analog trimming where signal polarity flexibility and zero-initialization overhead are critical.

Availability

X9313WMIZ-3 is available at Aetrix Electronics and suitable for industrial control systems, medical instrumentation, and test equipment requiring stable component supply, long-term lifecycle continuity, and RoHS-compliant packaging.

Supply support for X9313WMIZ-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 precision analog and power management semiconductor provider, now part of Renesas Electronics, with deep expertise in high-reliability industrial and infrastructure solutions.

The X9313 product line was designed specifically for replacing mechanical potentiometers in analog signal conditioning, power supply trimming, and sensor calibration applications demanding nonvolatile setting retention and rail-to-rail terminal operation.

FAQ

What is the maximum allowable voltage difference between RH/VH and RL/VL for X9313WMIZ-3?

The X9313WMIZ-3 supports a maximum voltage difference (ΔV = |VH − VL|) of 10 V, as specified for the "X9313W" family variant in the Absolute Maximum Ratings table. This limit applies regardless of VCC level and ensures safe operation of the internal resistor array and wiper switches.

Does X9313WMIZ-3 require external pull-up or pull-down resistors on its control pins?

No, the X9313WMIZ-3 does not require external pull-up or pull-down resistors on CS, U/D, or INC pins. Input leakage current is ±10 µA max, and VIH/VIL thresholds are defined relative to VCC/VSS, allowing direct connection to standard CMOS GPIO outputs without additional biasing components.

Can X9313WMIZ-3 be used in a two-terminal variable resistor configuration?

Yes, the X9313WMIZ-3 can be configured as a two-terminal variable resistor by connecting either RH/VH or RL/VL to RW/VW and using the remaining terminal plus RW/VW as the two endpoints. This mode is explicitly supported in the Applications Information section and maintains the same 10 kΩ RTOTAL tolerance and linearity specs.

How long does it take for X9313WMIZ-3 to stabilize its wiper position after power-up?

The X9313WMIZ-3 achieves wiper stability within 10 µs after VCC reaches its final value, as specified by t_PU (Power-up to Wiper Stable) in the AC Electrical Specifications table. This fast settling enables immediate analog adjustment without software delay or polling.

Is the nonvolatile memory in X9313WMIZ-3 subject to wear-out during normal operation?

Yes - the nonvolatile memory in X9313WMIZ-3 has a minimum endurance of 100,000 data changes per bit, as stated in the Endurance and Data Retention table. Each store operation (CS↑ while INC = HIGH) consumes one cycle; typical applications rarely exceed hundreds of stores over product lifetime, preserving memory integrity well beyond 100 years of data retention.