Renesas X9313WSZ

Overview

X9313WSZ from Intersil is a digitally controlled potentiometer (XDCP™) with 32 linear tap positions, 3-wire serial interface (CS/U/D/INC), nonvolatile wiper position storage, and 10kΩ end-to-end resistance. It operates from 3V to 5.5V, supports terminal voltages from –VCC to +VCC, and is housed in an 8-lead SOIC package. It serves as a solid-state replacement for mechanical potentiometers in precision analog trimming applications.

For engineers reviewing the X9313WSZ datasheet, X9313WSZ pinout, X9313WSZ application, or X9313WSZ equivalent, key selection considerations include its ±20% RTOTAL tolerance, 40Ω typical wiper resistance at 5V, 100,000-cycle endurance, 100-year data retention, and compatibility with commercial-temperature (0°C to +70°C) systems requiring stable, reprogrammable resistance control without manual adjustment.

Technical Context

The X9313WSZ implements a 31-element resistor array with a digitally addressable wiper controlled by an up/down counter and decoded via 5-bit logic. Its "make-before-break" switching ensures continuity during wiper transitions, while nonvolatile memory stores the last wiper position for automatic recall at power-up.

Control is executed via three dedicated digital inputs: CS enables device selection, U/D sets direction, and edge-triggered INC advances the wiper. A store operation occurs only when CS rises while INC is HIGH - enabling deterministic configuration persistence without unintended writes during power sequencing.

Key Specifications

Pinout & Package

Package: 8-lead SOIC (Pb-free, RoHS-compliant, M8.15 outline), 3.9mm × 4.9mm body, 1.27mm lead pitch.

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 X9313WSZ uniquely delivers guaranteed power-on wiper recall without host intervention, simpler 3-wire timing, and proven 100-year data retention - making it optimal for unattended or safety-critical trimming where configuration integrity is non-negotiable.

Availability

X9313WSZ is available at Aetrix Electronics and suitable for audio equipment calibration, sensor signal conditioning, programmable power supplies, and laser diode biasing requiring stable component supply and long-term configuration retention.

Supply support for X9313WSZ 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 ICs, now part of Renesas Electronics, with deep expertise in high-reliability industrial and infrastructure solutions.

The X9313 product line was designed specifically for solid-state replacement of mechanical potentiometers in commercial-temperature embedded systems requiring nonvolatile, field-programmable resistance control with minimal board space and no moving parts.

FAQ

What is the operating temperature range for the X9313WSZ?

The X9313WSZ is rated for commercial temperature operation from 0°C to +70°C, as confirmed in the Ordering Information table on page 2 of FN8177 Rev 7.00. This range applies specifically to the X9313WSZ variant, distinct from industrial-grade versions like X9313WSIZ (-40°C to +85°C). The device's temperature-compensated resistor array maintains ±300 ppm/°C end-to-end resistance drift within this span, ensuring stable performance in office and lab equipment environments where ambient conditions remain controlled.

Does the X9313WSZ require external components to retain wiper position after power loss?

No, the X9313WSZ does not require external components to retain wiper position after power loss. Its integrated nonvolatile memory stores the last wiper setting automatically upon a valid store command (CS rising edge with INC HIGH), and recalls that value at next power-up. This functionality is intrinsic to the X9313WSZ die architecture and is verified in the Principles of Operation section (page 3) and Endurance & Data Retention table (page 6) of FN8177 Rev 7.00, specifying 100-year data retention without auxiliary circuitry.

Can the X9313WSZ be used with a 3.3V microcontroller GPIO directly?

Yes, the X9313WSZ supports direct interfacing with 3.3V microcontroller GPIOs. Its CS, U/D, and INC inputs accept logic HIGH thresholds as low as 2.0V (VIH min) and logic LOW thresholds up to +0.8V (VIL max) across the full 3V–5.5V supply range, per DC Electrical Specifications (page 6). Since 3.3V MCU outputs typically exceed 2.4V for HIGH and stay below 0.4V for LOW, they meet these margins without level-shifting - confirmed for X9313WSZ-3* variants explicitly rated for 3V–5.5V operation.

What is the maximum allowable voltage difference between RH/VH and RL/VL terminals on the X9313WSZ?

The maximum allowable voltage difference (ΔV = |VH – VL|) across the X9313WSZ's end terminals is 10V, as specified in the Absolute Maximum Ratings table (page 5) for X9313W-series devices. This limit applies regardless of supply voltage and is independent of the ±VCC terminal voltage range (–VCC to +VCC). Exceeding 10V risks irreversible damage to the internal resistor array or switching elements, and is strictly prohibited even for transient events.

How many wiper position changes can the X9313WSZ endure before failure?

The X9313WSZ is rated for a minimum of 100,000 data changes per bit in nonvolatile memory, as documented in the Endurance and Data Retention table (page 6) of FN8177 Rev 7.00. This endurance figure reflects full-cycle write/erase operations to the wiper position register and is validated under recommended operating conditions. It does not refer to mechanical wear (as there are no moving parts) but to charge injection stress on the EEPROM cells - sufficient for decades of daily recalibration in most embedded instrumentation applications.