Renesas X9313WS

Overview

X9313WS from Intersil is a digitally controlled potentiometer (XDCP™) implementing a 32-tap linear resistor array with nonvolatile wiper position storage, 3-wire serial interface (CS/U/D/INC), ±V_CC terminal voltage tolerance, and 10 kΩ end-to-end resistance - used for precision analog trimming in voltage reference, amplifier gain, and sensor offset calibration circuits.

For engineers reviewing the X9313WS datasheet, X9313WS pinout, X9313WS application, or X9313WS equivalent, this page delivers verified electrical specs, SOIC-8 package mapping, real-world use cases, and two confirmed alternative parts with documented functional and application differences.

Technical Context

The X9313WS integrates a 31-element resistor ladder, 5-bit up/down counter, make-before-break wiper switching network, and EEPROM-based nonvolatile memory to retain wiper position across power cycles. Its control logic responds to negative-edge-triggered INC pulses while U/D sets direction and CS enables selection or initiates store-on-high transitions.

It operates as either a three-terminal potentiometer (RH/VH–RW/VW–RL/VL) or two-terminal variable resistor, with wiper resistance ≤100 Ω at V_CC = 5 V, ±4.4 mA max wiper current, and ratiometric temperature coefficient of ±20 ppm/°C - enabling stable analog tuning under thermal drift.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with X9313WS, AD5243BRMZ10 offers higher resolution and dual-channel capability but lacks ±V_CC terminal support and uses I²C instead of minimal 3-wire control; MCP41010-I/P reduces interface complexity with SPI but removes nonvolatile retention - requiring firmware intervention to restore settings after power loss.

Availability

X9313WS is available at Aetrix Electronics and suitable for voltage reference trimming, op-amp gain calibration, and sensor offset compensation requiring stable component supply, long-term calibration retention, and industrial temperature operation.

Supply support for X9313WS 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 IC supplier serving industrial, infrastructure, and high-end consumer markets with robust, high-reliability solutions.

The X9313 product line delivers solid-state digitally controlled potentiometers for analog system calibration - designed specifically to replace mechanical trimpots in applications demanding long-term stability, programmability, and nonvolatile setting retention.

FAQ

What is the maximum allowable voltage across RH/VH and RL/VL terminals for X9313WS?

The X9313WS supports a maximum differential voltage ΔV = |VH − VL| of 10 V under recommended operating conditions. This rating applies across its full commercial temperature range (0°C to +70°C) and enables use in 5 V and ±5 V analog signal paths without external protection components. Exceeding 10 V risks permanent damage to the internal resistor array switches.

Does X9313WS retain its wiper position after power removal?

Yes, X9313WS stores the wiper position in nonvolatile EEPROM memory. Upon power restoration, the device automatically recalls the last stored value and sets the wiper to that tap position within 10 µs. Data retention is rated for 100 years, making it suitable for unattended field-deployed equipment requiring zero-maintenance calibration.

Can X9313WS operate with a 3.3 V supply voltage?

Yes, X9313WS supports a supply voltage range of 3 V to 5.5 V, explicitly including standard 3.3 V logic rails. At 3.3 V, active current remains ≤3 mA and standby current stays ≤500 µA. All timing parameters (e.g., t_CYC = 2 µs, t_IW = 5 µs) remain valid, and the ±V_CC terminal rating scales accordingly (i.e., −3.3 V to +3.3 V).

How does the "make-before-break" wiper switching benefit X9313WS in feedback circuits?

The make-before-break architecture ensures continuous conduction during wiper transitions - preventing momentary open-circuit conditions that could destabilize op-amp feedback loops or cause output glitches. For X9313WS, this behavior maintains signal integrity in gain-setting or offset-nulling configurations where interruption would induce transient errors or latch-up risk.

What package type is used by X9313WS and is it RoHS compliant?

X9313WS uses an 8-lead narrow-body SOIC package (M8.15 outline) with Pb-free matte tin plating (e3 termination), fully compliant with RoHS Directive 2011/65/EU. The package measures 3.9 mm × 4.9 mm with 1.27 mm lead pitch and supports standard reflow soldering profiles per IPC/JEDEC J-STD-020.