Renesas X9511WSZT1

Overview

X9511WSZT1 from Intersil is a push-button controlled digital potentiometer (XDCP™) with 32 linear tap points, ±5V terminal voltage range, 10kΩ end-to-end resistance, nonvolatile EEPROM wiper position storage, and 8-lead SOIC package. It functions as a digitally adjustable voltage divider or variable resistor in analog signal conditioning circuits requiring manual user calibration without microcontroller intervention.

For engineers reviewing the X9511WSZT1 datasheet, X9511WSZT1 pinout, X9511WSZT1 application, or X9511WSZT1 equivalent, this device serves as a drop-in replacement for mechanical potentiometers in power supply trimming, sensor offset adjustment, and audio volume control where long-term wiper position retention and push-button simplicity are critical.

Technical Context

The X9511WSZT1 integrates a 5-bit up/down counter, 31-element temperature-compensated resistor array, and EEPROM memory with AUTOSTORE® functionality. Wiper position is updated via debounced PU/PD inputs, with slow-scan (≤1s hold) and fast-scan (>1s hold) modes enabling rapid coarse/fine adjustment.

It operates from 5V ±10% supply, supports ±1mA wiper current, features 40Ω typical wiper resistance, ±20% end-to-end resistance tolerance, and retains wiper settings for 100 years. The ASE pin enables automatic store on VCC drop (ASE = LOW) or manual store via push-button pulse (ASE = HIGH).

Key Specifications

Pinout & Package

Package: 8-lead SOIC (MDP0027), RoHS-compliant Pb-free with matte tin finish, rated for surface-mount 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 X9511WSZT1 uniquely combines push-button simplicity, nonvolatile EEPROM storage, and ±5V bipolar operation-making it optimal for standalone calibration tasks where MCU resources or external memory are unavailable.

Availability

X9511WSZT1 is available at Aetrix Electronics and suitable for power supply trimming, sensor calibration, audio volume control, industrial setpoint adjustment, and analog front-end tuning requiring stable component supply and long-term parameter retention.

Supply support for X9511WSZT1 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 precision power management, thermal sensing, and interface applications.

The X9511WSZT1 belongs to Intersil's XDCP™ (Xicor Digital Controlled Potentiometer) family, engineered specifically for replacing mechanical potentiometers in environments demanding reliability, user-accessible calibration, and zero-microcontroller implementation.

FAQ

What is the operating temperature range for the X9511WSZT1?

The X9511WSZT1 is specified for commercial operation from 0°C to +70°C. Its 8-lead SOIC package (MDP0027) and internal temperature-compensated resistor array ensure stable performance across this range, with a typical temperature coefficient of +300 ppm/°C for the 10kΩ end-to-end resistance. This makes the X9511WSZT1 suitable for office equipment, consumer electronics, and industrial panels operating in controlled ambient conditions.

Does the X9511WSZT1 require an external microcontroller to function?

No, the X9511WSZT1 operates autonomously without any microcontroller. It uses two dedicated push-button inputs (PU and PD) and an ASE pin to control wiper position and store settings directly in on-chip EEPROM. The internal debounce circuitry, 5-bit counter, and decoder eliminate the need for firmware or external logic-enabling true "set-and-forget" analog adjustment in systems with no processing capability.

How does AUTOSTORE® work on the X9511WSZT1?

AUTOSTORE® on the X9511WSZT1 automatically saves the current wiper position to nonvolatile EEPROM whenever VCC drops below 4V while the ASE pin is held LOW. Upon power restoration, the stored value is recalled, positioning the wiper identically to its last state. This eliminates startup drift and ensures consistent analog behavior across power cycles-critical for calibration-critical applications like sensor offset or power supply trim where repeatability is mandatory.

What is the maximum voltage that can be applied across VH and VL terminals of the X9511WSZT1?

The X9511WSZT1 supports a maximum differential voltage of 10V between VH and VL terminals, consistent with its ±5V rating relative to VSS. This allows use in both unipolar (0V to +5V) and bipolar (-5V to +5V) signal paths. Exceeding ±5V on either terminal relative to VSS violates absolute maximum ratings and may damage the device, so proper clamping or rail alignment is required in high-voltage analog stages.

Can the X9511WSZT1 be used in place of a mechanical potentiometer without circuit redesign?

Yes, the X9511WSZT1 is designed as a direct functional replacement for 3-terminal mechanical potentiometers. Its VH, VL, and VW pins map directly to high, low, and wiper terminals; it fits the same 8-lead SOIC footprint as many legacy trimmers; and its ±5V terminal range, 10kΩ resistance, and push-button interface simplify drop-in upgrades. No changes to surrounding passive components or PCB layout are needed beyond routing PU/PD/ASE signals to user switches.