Renesas X9511WP

Overview

X9511WP from Intersil is a push-button controlled digital potentiometer (XDCP™) with 32 linear tap positions, 10kΩ end-to-end resistance, ±5V terminal voltage range, and nonvolatile wiper position storage in EEPROM. It serves as an electronic replacement for mechanical trimmers in analog signal conditioning circuits requiring manual resistance adjustment without microcontroller interface.

For engineers reviewing the X9511WP datasheet, X9511WP pinout, X9511WP application, or X9511WP equivalent, this device supports manual wiper positioning via PU/PD buttons, AUTOSTORE® or manual store modes, slow/fast scan timing, and operates across 0°C to +70°C in 8-lead PDIP packaging.

Technical Context

The X9511WP implements a 5-bit up/down counter driving a 32-position decoder that selects one of 31 resistive elements in series. Its internal debounce circuitry enforces ≥40ms minimum button press duration to prevent spurious wiper movement, with automatic transition from slow scan (≤1s hold) to fast scan (>1s hold) timing.

Wiper position is stored in on-chip EEPROM with 100-year data retention and recalled at power-up when AUTOSTORE is enabled (ASE = LOW). The device requires no VCC sequencing constraints and maintains valid operation over -5V to +5V applied across VH/VL terminals independent of supply ramp rate.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5204BRZ10 and MCP41010-I/P, the X9511WP uniquely delivers standalone push-button operation, automatic power-loss wiper retention, and bipolar ±5V analog handling-making it optimal for field-serviceable analog systems lacking embedded controllers.

Availability

X9511WP is available at Aetrix Electronics and suitable for audio equipment calibration, industrial sensor biasing, medical instrumentation, and test & measurement equipment requiring stable component supply and long-term calibration integrity.

Supply support for X9511WP 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) is a U.S.-based semiconductor company specializing in precision analog, power management, and interface ICs for industrial, communications, and computing markets.

The X9511WP belongs to Intersil's XDCP™ (eXternally Controlled Digital Potentiometer) family, designed specifically for mechanical potentiometer replacement in analog trimming applications where MCU-free, push-button-controlled, nonvolatile resistance adjustment is required.

FAQ

What is the maximum voltage that can be applied across VH and VL terminals of the X9511WP?

The X9511WP supports a terminal voltage range of ±5V, meaning VH and VL may each swing from -5V to +5V relative to VSS. The absolute maximum differential voltage |VH – VL| is 10V for the X9511W variant, which includes the X9511WP. Exceeding ±5V on either terminal risks violating absolute maximum ratings and may cause permanent damage.

Does the X9511WP require any external components to operate with push buttons?

No, the X9511WP does not require external pull-up resistors for PU or PD inputs-the device integrates on-chip pull-ups. A simple momentary switch connecting PU or PD to VSS is sufficient. For AUTOSTORE mode, ASE is typically hard-wired to VSS; for manual store, a second push button tied to ASE is used with appropriate debouncing handled internally.

How does the X9511WP handle power-up and power-down sequencing?

The X9511WP imposes no sequencing requirements between VCC and analog terminals (VH/VL). Wiper position is recalled from EEPROM within 500µs after VCC stabilizes. During power-down, AUTOSTORE triggers automatically if ASE is held LOW, completing a 2ms store cycle before VCC drops below 3.5V-ensuring reliable nonvolatile retention without external supervision.

What is the resolution and linearity performance of the X9511WP in voltage divider mode?

In voltage divider mode, the X9511WP offers 3% resistance resolution (323Ω per tap for 10kΩ) and ±1.0 MI absolute linearity, where 1 MI = (VW(31) – VW(0))/31. Relative linearity is ±0.2 MI, indicating highly consistent step-size accuracy across the entire 32-tap range-critical for precision analog gain/offset control.

Can the X9511WP be used in circuits with bipolar analog signals?

Yes, the X9511WP is explicitly rated for ±5V terminal voltage operation, enabling direct use in bipolar signal paths such as AC-coupled audio stages, op-amp inverting configurations, and sensor interfaces with negative reference rails. Its internal CMOS transfer gates and resistor array are designed to maintain linearity and low noise (< –120dB/√Hz) across the full ±5V range.