Renesas X9313UMIZ

Overview

X9313UMIZ from Intersil is a digitally controlled potentiometer (XDCP™) with 32 linear tap positions, 50 kΩ end-to-end resistance, ±VCC terminal voltage range, and nonvolatile wiper position storage. It operates from 4.5 V to 5.5 V, features a 3-wire serial interface (CS/U/D/INC), and is housed in an 8-lead MSOP package for precision analog trimming in industrial-grade environments (-40°C to +85°C).

For engineers reviewing the X9313UMIZ datasheet, X9313UMIZ pinout, X9313UMIZ application, or X9313UMIZ equivalent, key selection criteria include its 50 kΩ RTOTAL tolerance (±20%), wiper resistance (40 Ω typ. at 5 V), 100,000-cycle endurance, 100-year data retention, and compatibility with ±VCC signal routing in voltage divider or variable resistor configurations.

Technical Context

The X9313UMIZ 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 direction controlled by U/D and edge-triggered movement via INC.

Wiper position is stored in nonvolatile memory upon CS rising edge while INC is HIGH, and automatically recalled at power-up. Terminal voltages support full ±VCC swing (–5 V to +5 V), and temperature-compensated design ensures ±300 ppm/°C RTOTAL drift and ±20 ppm/°C ratiometric stability.

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 × 0.95 mm, lead 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 AD5243BRMZ50 and MCP41050-I/P, the X9313UMIZ uniquely combines ±VCC terminal voltage capability, nonvolatile storage, and 3-wire simplicity-making it optimal for industrial analog trimming where bipolar signal handling and zero-configuration power-up are mandatory.

Availability

X9313UMIZ is available at Aetrix Electronics and suitable for industrial sensor conditioning, instrumentation calibration, audio level control, and power supply feedback tuning requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for X9313UMIZ 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 provider of precision analog and power management ICs, now part of Renesas Electronics, with focus on industrial, infrastructure, and high-reliability applications.

The X9313 product line delivers solid-state digitally controlled potentiometers for replacing mechanical trimmers in environments demanding long-term stability, programmability, and nonvolatile configuration retention.

FAQ

What is the maximum allowable voltage across RH/VH and RL/VL terminals for X9313UMIZ?

The X9313UMIZ supports ΔV = |VH – VL| up to 10 V, as specified for X9313U-series devices. This allows use in 5 V single-supply or ±5 V dual-supply configurations without external clamping. Exceeding 10 V risks permanent damage per Absolute Maximum Ratings.

Does X9313UMIZ require an external clock or MCU firmware to retain wiper position after power loss?

No. The X9313UMIZ stores wiper position in on-chip nonvolatile memory. Once written via CS/INC sequence, the value persists for 100 years and is automatically recalled at power-up-no external clock, MCU code, or backup power is needed for retention.

Can X9313UMIZ be used in a bipolar signal path where VH is at +5 V and VL is at –5 V?

Yes. The X9313UMIZ explicitly supports terminal voltages from –VCC to +VCC. With VCC = 5 V, VH and VL may be biased at +5 V and –5 V respectively, enabling true bipolar operation in op-amp gain stages or differential signal conditioning circuits.

What is the minimum pulse width required on the INC pin for reliable wiper stepping in X9313UMIZ?

The X9313UMIZ requires a minimum INC HIGH period (tIH) and LOW period (tIL) of 1 µs each, per AC Electrical Specifications. Pulses shorter than this may fail to register, causing missed steps or erratic wiper movement-designs must ensure MCU or logic generator meets this timing.

Is the X9313UMIZ pin-compatible with other X9313 variants like X9313USIZ or X9313WMIZ?

No. While all X9313 variants share identical 8-pin functional mapping, X9313UMIZ uses the MSOP package (M8.118), whereas X9313USIZ uses SOIC (M8.15) and X9313WMIZ uses MSOP but with 10 kΩ RTOTAL. Physical footprint and soldering requirements differ-PCB layout is not interchangeable.