Renesas X9313WP

Overview

X9313WP 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 industrial sensor calibration and power supply feedback networks.

For engineers reviewing the X9313WP datasheet, X9313WP pinout, X9313WP application, or X9313WP equivalent, key selection criteria include its PDIP-8 package, -40°C to +85°C industrial temperature range, 10 kΩ RTOTAL with ±20% tolerance, nonvolatile recall on power-up, and compatibility with 3V–5.5V supply operation.

Technical Context

The X9313WP uses a 5-bit up/down counter driving a 31-element resistor ladder with make-before-break wiper switching, enabling precise tap selection without open-circuit interruption. Its control logic responds to edge-triggered INC input with U/D direction select and CS-gated store-on-high transitions.

Nonvolatile memory retains wiper position for ≥100 years and supports ≥100,000 write cycles; terminal voltage range spans -V_CC to +V_CC, allowing bipolar signal conditioning, while wiper resistance is 40 Ω (typ.) at V_CC = 5 V.

Key Specifications

Pinout & Package

Package: 8-lead PDIP (Plastic Dual-In-Line Package), Pb-free, RoHS compliant, through-hole wave-solder compatible only (not reflow-compatible).

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 X9313WP offers autonomous power-up recall and minimal GPIO overhead (3-wire), making it optimal for cost-sensitive, single-function analog trimming where firmware simplicity and reliability are prioritized over resolution or multi-channel support.

Availability

X9313WP is available at Aetrix Electronics and suitable for industrial sensor calibration, programmable power supply feedback, and laser diode bias control requiring stable component supply, long-term obsolescence management, and RoHS-compliant through-hole assembly.

Supply support for X9313WP 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, acquired by Renesas Electronics in 2017; its products serve industrial, infrastructure, and high-reliability embedded markets.

The X9313WP belongs to Intersil's XDCP™ family of digitally controlled potentiometers, designed specifically for replacing mechanical trimmers in analog signal-path calibration where nonvolatile setting retention and robustness against environmental stress are essential.

FAQ

What is the maximum allowable voltage across RH/VH and RL/VL terminals for X9313WP?

The X9313WP supports ΔV = |VH − VL| up to 10 V, as specified for X9313W-series devices in the Absolute Maximum Ratings table. This rating applies regardless of VCC level and enables use in higher-voltage analog stages such as op-amp gain-setting networks or power supply error amplifiers. Exceeding 10 V risks irreversible damage to the internal resistor array switches.

Does X9313WP require an external pull-up resistor on the INC line?

No, the X9313WP does not require an external pull-up on the INC line. Its INC input has CMOS-compatible thresholds (VIL ≤ 0.8 V, VIH ≥ 2 V) and leakage current ≤ ±10 µA, allowing direct connection to microcontroller GPIO pins configured as push-pull outputs. Internal weak pull-down is not present, so the host must ensure defined logic states during idle periods to prevent unintended wiper movement.

Can X9313WP operate with a 3.3V supply while maintaining full 32-tap functionality?

Yes, the X9313WP operates fully across 3V to 5.5V, including 3.3V nominal rails. All specifications-including 32-tap resolution, nonvolatile store timing (10 ms), and wiper resistance (40 Ω typ. at 5 V, scaling proportionally)-are guaranteed over this range. The device's low active current (3 mA max) and standby current (500 µA max) ensure compatibility with 3.3V low-power systems.

How is wiper position stored in nonvolatile memory on X9313WP?

Wiper position is stored in nonvolatile memory when CS transitions HIGH while INC is held HIGH. This store command takes 10 ms to complete, after which the device enters standby mode. During normal operation, the wiper position remains volatile until explicitly stored; power cycling without a prior store reverts to the last saved value, not the most recent volatile setting. No external programming voltage or command sequence is required.

Is X9313WP compatible with reflow soldering processes?

No, the X9313WP in PDIP package (MDP0031) is intended for through-hole wave soldering only and is not rated for reflow soldering. Its Pb-free PDIP construction uses materials optimized for wave profiles; exposure to reflow peak temperatures (>217°C) may cause package delamination or lead-frame separation. For surface-mount alternatives, consider X9313WMIZ (MSOP-8) or X9313WSIZ (SOIC-8) variants.