Renesas X9511WPZ

Overview

X9511WPZ from Intersil is a push-button controlled digital potentiometer (XDCP™) with 32 linear tap positions, 10kΩ end-to-end resistance, ±5V terminal voltage range, nonvolatile wiper position storage, and 8-lead PDIP Pb-free package. It replaces mechanical potentiometers in precision analog trimming applications requiring power-up recall and manual or automatic store functionality.

For engineers reviewing the X9511WPZ datasheet, X9511WPZ pinout, X9511WPZ application, or X9511WPZ equivalent, this device supports push-button–driven resistance adjustment in analog signal conditioning, sensor calibration, and DC bias control where EEPROM retention, low standby current (100µA typical), and ±20% resistance tolerance are critical selection criteria.

Technical Context

The X9511WPZ implements a 5-bit up/down counter driving a 32-position decoder across a 31-element resistor array. Wiper movement is controlled by debounced PU and PD inputs with slow/fast scan modes activated by button hold duration (>1s transitions to fast mode).

It integrates AUTOSTORE® logic that triggers EEPROM write on VCC drop when ASE is low, and supports manual store via ASE pulse. The device operates with no power sequencing restrictions and retains wiper position for 100 years without power.

Key Specifications

Pinout & Package

Package: 8-lead PDIP (Plastic Dual-In-Line Package), Pb-free, RoHS-compliant, MDP0031 footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5243BRMZ10 and MCP4018T-103I/P, the X9511WPZ uniquely delivers self-contained push-button operation, EEPROM-based power-up recall, and bipolar ±5V analog compatibility-making it optimal for cost-sensitive, MCU-less analog trimming where reliability and ease of field adjustment are essential.

Availability

X9511WPZ is available at Aetrix Electronics and suitable for audio equipment manufacturing, industrial sensor calibration, laser diode biasing, and isolated power supply tuning requiring stable component supply and long-term calibration retention.

Supply support for X9511WPZ 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 (now part of Renesas Electronics) designs high-performance analog and mixed-signal ICs for power management, precision analog, and interface applications.

The X9511WPZ belongs to Intersil's XDCP™ (eXternally Controlled Digital Potentiometer) family, engineered specifically for replacing mechanical potentiometers in analog trimming tasks where push-button simplicity, nonvolatile memory, and robust bipolar operation are required.

FAQ

What is the maximum voltage rating for the VH and VL terminals of the X9511WPZ?

The X9511WPZ supports a terminal voltage range of ±5V on VH and VL with respect to VSS, with absolute maximum ratings extending to ±8V. This allows direct use in bipolar analog circuits without level-shifting components. The ±5V operating range ensures compatibility with standard op-amp rails and sensor interfaces while maintaining specified linearity and resolution. Exceeding ±5V during normal operation may degrade performance or reliability.

Does the X9511WPZ require an external microcontroller to function?

No, the X9511WPZ operates autonomously without any microcontroller. Its PU and PD inputs accept direct connection to momentary push-button switches, and the ASE pin enables either automatic store on power-down or manual store via button press. All logic, debounce, counter, decode, and EEPROM functions are fully integrated. The X9511WPZ is designed explicitly for MCU-less analog trimming applications where simplicity and reliability are paramount.

How does the slow and fast scan mode work on the X9511WPZ?

The X9511WPZ enters slow scan mode immediately after debounce (100–375ms per tap); if the PU or PD button is held continuously for more than 1 second, it transitions to fast scan mode (25–90ms per tap). Release of the button returns the device to standby. This dual-speed behavior allows precise single-step adjustment for fine tuning and rapid coarse positioning-both fully handled internally without external timing components or firmware.

What is the wiper current rating and why does it matter for the X9511WPZ?

The X9511WPZ has a wiper current rating of ±1mA maximum. This specification limits the allowable current flowing through the wiper terminal to prevent heating-induced resistance drift or EEPROM corruption. In practice, it defines the maximum load impedance that can be driven directly from VW (e.g., ≥5kΩ for ±5V swing). Exceeding this rating risks long-term degradation of wiper contact resistance and positional accuracy, especially in high-gain or precision feedback paths.

Can the X9511WPZ be used in industrial temperature environments?

The X9511WPZ is rated for 0°C to +70°C operation, making it suitable for commercial and benign industrial environments. For extended temperature ranges (–40°C to +85°C), the pin-compatible X9511WPIZ variant is available. Using the X9511WPZ outside its specified range may result in increased wiper resistance drift, reduced EEPROM retention, or failure to meet timing parameters such as debounce or scan speed. Always verify ambient and junction temperatures in final layout.