Renesas X9511WSZT7A

Overview

X9511WSZT7A from Intersil is a push-button controlled digital potentiometer (XDCP™) with linear 32-tap resistance adjustment, ±5V terminal voltage range, 10kΩ end-to-end resistance, nonvolatile wiper position storage, and SOIC-8 packaging. It replaces mechanical potentiometers in precision analog trimming applications requiring power-up recall and manual or automatic store functionality.

For engineers reviewing the X9511WSZT7A datasheet, X9511WSZT7A pinout, X9511WSZT7A application, or X9511WSZT7A equivalent, this device serves as a low-power, temperature-compensated, push-button-operated resistor array for analog signal conditioning, bias adjustment, and calibration circuits where EEPROM retention and ±1mA wiper current capability are critical selection criteria.

Technical Context

The X9511WSZT7A implements a 5-bit up/down counter driving a 32-position decoder to select taps across a 31-element resistor array. Its AUTOSTORE® and manual store modes rely on internal EEPROM with 100-year data retention and 100,000 store cycles.

Internal debounce circuitry enforces ≥40ms minimum pulse width on PU/PD inputs, enabling slow-scan (≤1s hold) and fast-scan (>1s hold) wiper movement. The device operates over 0°C to +70°C with 5V ±10% supply and supports ±5V analog voltage across VH/VL terminals without sequencing constraints during power-up/down.

Key Specifications

Pinout & Package

Package: 8-pin SOIC (MDP0027), RoHS-compliant Pb-free with matte tin termination, compatible with standard reflow soldering.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AD5171BRMZ-10 and MCP4017T-103I/OT, the X9511WSZT7A uniquely delivers push-button autonomy, bipolar ±5V analog operation, and guaranteed 100-year EEPROM retention-making it optimal for maintenance-free, human-interface-driven analog trimming where MCU resources or external memory are unavailable.

Availability

X9511WSZT7A is available at Aetrix Electronics and suitable for audio equipment calibration, sensor compensation circuits, laser driver biasing, and power supply feedback networks requiring stable component supply and long-term parameter retention.

Supply support for X9511WSZT7A 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 high-performance analog and mixed-signal ICs for power management, precision analog, and interface applications.

The X9511WSZT7A belongs to Intersil's XDCP™ (Xicor Digital Controlled Potentiometer) family, designed specifically for replacing mechanical potentiometers in environments demanding reliability, nonvolatility, and direct human interface without microcontroller dependency.

FAQ

What is the operating voltage range for the analog terminals of the X9511WSZT7A?

The X9511WSZT7A supports −5V to +5V applied across its VH and VL terminals, independent of VCC. This bipolar range allows direct use in AC-coupled or dual-supply analog circuits without level-shifting components. The specification is confirmed in the Absolute Maximum Ratings and Analog Characteristics sections of the FN8205 datasheet, with no sequencing restrictions between analog and supply voltages during power-up or power-down.

Does the X9511WSZT7A retain its wiper position after power removal?

Yes, the X9511WSZT7A stores wiper position in nonvolatile EEPROM memory. When AUTOSTORE® is enabled (ASE = LOW), it automatically saves the position during VCC power-down. With ASE held HIGH, a manual store is triggered by pulsing ASE LOW. Data retention is rated for 100 years, and the device supports up to 100,000 store cycles-both explicitly specified in the datasheet's Features and Electrical Characteristics tables.

How does the push-button debounce work on the X9511WSZT7A?

The X9511WSZT7A incorporates internal hardware debounce on PU, PD, and ASE inputs with a typical delay of 40ms. Inputs must remain LOW for ≥30ms (min) to register a valid transition. This prevents false triggering from mechanical switch bounce. Debounce timing is fully characterized in the A.C. Operating Characteristics table (tDB = 30–40ms), and no external RC components are required for reliable operation.

What is the resolution and linearity performance of the X9511WSZT7A?

The X9511WSZT7A provides 32 discrete tap points across its 10kΩ resistor array, yielding ~323Ω per step. Its relative linearity is ±0.2 MI (minimum increment), meaning step-size error is tightly bounded. Absolute linearity is ±1.0 MI. These values are measured and guaranteed over the full 0°C to +70°C commercial temperature range and are documented in the Analog Characteristics section of the FN8205 datasheet.

Can the X9511WSZT7A be used in circuits with supply voltages other than 5V?

No-the X9511WSZT7A is specified only for 5V ±10% (4.5V to 5.5V) VCC operation. While analog terminals tolerate −5V to +5V, the internal logic, EEPROM, and debounce circuitry require nominal 5V. Operation outside this range risks functional failure or reduced reliability, as confirmed by the Recommended Operating Conditions table and Absolute Maximum Ratings in the datasheet.