Winbond Wpce773la0dg Datasheet Pdf Download 2021 Access
The EC monitors thermal diodes or sensors connected via SMBus. Based on temperature thresholds defined in its firmware, it controls fan PWM (Pulse Width Modulation) signals to adjust cooling fan speed.
The Winbond WPCE773LA0DG is a powerful, versatile Super I/O chip that continues to power millions of devices worldwide. Whether you are repairing a failed laptop motherboard, reverse-engineering a legacy system, or maintaining industrial equipment, having the official 2021 revision of the datasheet is non-negotiable.
By using the official Nuvoton (formerly Winbond) archive and following the safety guidelines above, you can download a clean, complete, and authentic PDF. Keep this article bookmarked – as manufacturers prune their legacy product pages, finding accurate technical documentation for older components like the WPCE773LA0DG becomes a superpower for any hardware engineer.
Ready to download? Visit the official Nuvoton product portal and search for part number WPCE773LA0DG under the “Technical Documents” tab. Filter by year 2021 and select the Datasheet in English.
Copyright notice: All trademarks are property of their respective owners. This guide is for educational and engineering reference purposes only. Always refer to the original manufacturer for the latest documentation.
The Winbond WPCE773LA0DG is a specialized Super I/O (Input/Output) controller primarily used in laptop motherboards to manage low-bandwidth system tasks. While originally a Winbond product, it is frequently associated with Nuvoton Technology, which acquired Winbond's Logic IC business. Technical Review & Specifications
Primary Function: Acts as an embedded controller (EC) and Super I/O chip, managing functions like keyboard control, power management, system monitoring (thermal/fans), and legacy port communication.
Package Type: Typically housed in a QFP-128 (Quad Flat Package) with 128 pins, making it suitable for compact PCB designs in mobile computers.
Operating Conditions: Supports an extended temperature range from -40°C to 105°C, ensuring stability in the high-heat environments of modern laptops.
Supply Status: Classified as a "low-popularity" or niche component. While still available through specialized distributors, it may face a moderate risk of counterfeit units (estimated at 34%) in the open market. Datasheet & Resources
For technical implementation or repair work, you can find documentation through these repositories:
Ariat Tech: Offers a downloadable PDF focusing on manufacturer information and inventory status.
The Datasheet Archive: Provides contextual information, including block diagrams for motherboards using this chip (e.g., JM41/JM51 discrete boards).
Veswin: A source for more detailed pinout, pin voltage, and schematic data for repair centers. Manufacturer Note
If you are looking for the most current support, check the Winbond Selection Guide or the Nuvoton Official Site. Winbond has largely shifted its focus to high-performance memory (DRAM and Flash), while Nuvoton continues the development of the Super I/O and Embedded Controller lines. WPCE773LA0DG Winbond Electronics - WIN SOURCE
The Winbond (Nuvoton) WPCE773LA0DG is a dedicated Super I/O and microcontroller chip commonly used in laptop motherboards for power management and system control . Technical Specifications Summary
Manufacturer: Nuvoton Technology (formerly part of Winbond Electronics) . Package: QFP-128 (128-pin Quad Flat Package) .
Temperature Range: Specified for extended temperatures from -40°C to 105°C .
Function: Integrated circuit (IC) primarily serving as a processor or microcontroller in industrial and commercial repair centers . Datasheet and Resources winbond wpce773la0dg datasheet pdf download 2021
To download the technical documentation or check availability, you can refer to several industry distributors:
Full Datasheet PDF: Available for viewing and download via the WPCE773LA0DG Ariat-Tech Portal, which includes primary technical information and manufacturer details .
Technical Archive: The Datasheet Archive provides search results for various revisions and contextual schematics where this chip is used (e.g., Wistron motherboards) .
Inventory and Pinouts: Detailed information including pin voltage, circuit diagrams, and potential equivalents can be found on Veswin . Sourcing and Buying
Availability: Components are currently in limited supply but are stocked by specialist distributors like Win Source and Quest Components .
Verification Note: Be cautious when purchasing from the open market, as some sources report a moderate risk of counterfeit parts (approx. 34%) for this specific series .
Winbond WPCE773LA0DG is a specialized Embedded Controller (EC) and I/O chip commonly used in notebook computers and mobile systems. While initially a Winbond product, its support and manufacturing were transitioned to Nuvoton Technology Corporation following Nuvoton's spin-off from Winbond. ariat-tech.com Technical Summary Report Manufacturer:
Winbond Electronics (Original) / Nuvoton Technology Corporation (Current). Part Category: Logic Integrated Circuit / Embedded Microcontroller. Package Type: (128-pin Quad Flat Package). Operating Temperature Range: cap T sub cap A ), making it suitable for industrial-grade applications. Production Status (as of 2021-2024):
Generally considered an older or "obsolete/hard-to-find" component with limited supply on the open market. It is frequently sourced through specialized distributors for repair or legacy system maintenance. WIN SOURCE Key Specifications & Features
LPC (Low Pin Count) interface for communication with the host chipset. Typical Usage
Mobile CPU platforms (e.g., Penryn), managing power states ( ), battery charging, and keyboard control. Programming
Often listed as non-programmable by end-users (OTP or pre-masked). Compliance Lead-free and RoHS compliant. Datasheet & Procurement Resources
As of 2021, official direct downloads from Winbond are replaced by Nuvoton documentation or archived technical files on distributor sites. Direct Datasheet PDF Links: Ariat-Tech Datasheet Archive (Detailed technical info) Datasheet Archive Context Search (Block diagrams and pinout context) Stock & Pricing (Reference): Available through Win Source Market Warning:
There is a noted moderate "fake threat" (roughly 34%) for this component in the open market due to its limited availability. WIN SOURCE schematic diagrams
for a particular laptop motherboard model that uses this chip? WINBOND WPCE773LA0DG datasheets
Contextual Info: 5 4 3 2 SJM50-PU Block Diagram 1 SYSTEM DC/DC Project code: 91.4FC01.001 PCB P/N : 48.4FC01.0SB REVISION : 08256- DatasheetArchive WPCE773LA0DG Winbond Electronics - WIN SOURCE
The Winbond WPCE773LA0DG is an Embedded Controller (EC) typically used in laptop motherboards for power management, keyboard control, and system monitoring. 📄 Datasheet Access
The specific PDF for the WPCE773LA0DG can be found on several reputable component database sites: Ariat-Tech – Provides direct PDF access and stock status. The EC monitors thermal diodes or sensors connected
Datasheet Archive – Useful for finding schematics and contextual block diagrams where this chip is used (e.g., Wistron or Compal motherboards). Veswin – Lists technical parameters and package details. 🛠️ Key Specifications Based on technical listings and motherboard schematics: Function: Multi-I/O Controller / Microcontroller.
Package Type: LQFP-128 (128-pin Low-profile Quad Flat Package).
Temperature Range: -40°C to +105°C (Extended/Industrial grade). Common Applications: Laptop Keyboard Controller (KBC). System Management Bus (SMBus) communication. Fan speed control and thermal monitoring. ACPI power state management. 💡 Troubleshooting Tips If you are looking for this datasheet to repair a laptop:
Schematic Search: Often, the full datasheet is hard to find, but the pinout is clearly labeled in the laptop's motherboard schematic (e.g., search for "Wistron JV50 schematic").
Replacement: The WPCE773 series is often interchangeable with specific revisions, but check the suffix (e.g., LA0DG) to ensure firmware compatibility.
Programming: These chips typically contain internal flash or access external SPI ROM; if replacing a dead chip, you may need to program it with the specific BIOS/EC firmware for that laptop model. Information on replacement equivalents? A guide on how to flash the EC firmware? WPCE773LA0DG Datasheets - ariat-tech.com
The Winbond WPCE773LA0DG is a highly specialized Embedded Controller (EC) typically found in laptop motherboards, often manufactured under the Nuvoton brand. While a single official "2021" datasheet may be elusive, the core technical specifications for this component remain consistent across available documentation. Core Specifications
Manufacturer: Primarily Nuvoton Technology Corporation America (formerly a division of Winbond).
Category: Integrated Circuits (ICs) / Processors & Microcontrollers. Package Type: QFP-128 (Quad Flat Package with 128 pins). Operating Temperature: Extended range of Compliance: Lead-free and RoHS compliant. Datasheet and Resource Access
You can find technical documentation and stock information through the following specialized electronic component distributors:
Ariat Tech: Offers a direct link to the WPCE773LA0DG Datasheet (PDF) and current inventory levels.
Veswin: Provides detailed information including pinouts, circuit diagrams, and schematics.
Datasheet Archive: Useful for contextual search, providing block diagrams and power sequence information relevant to laptop repair.
Win-Source: Lists the component with a note on market availability and "fake threat" warnings for open-market buyers. Applications
The WPCE773LA0DG is frequently used as a system controller in Wistron-designed laptop motherboards (e.g., project codes like 91.4CQ01.001) to manage power-on sequences, thermal sensing, and keyboard interfaces. WPCE773LA0DG WPCE773LA0DG WINBOND Processors / Microcontrollers
Winbond WPCE773LA0DG is a specialized Super I/O (Input/Output) controller primarily used in laptop motherboards to manage low-level system tasks. Although originally a Winbond product, it is often listed under Nuvoton Technology
, which acquired Winbond’s Motherboard Managed IC business. ariat-tech.com Key Technical Specifications Package Type : 128-pin QFP (Quad Flat Package). Device Category : Embedded Controller (EC) / Super I/O. Operating Temperature : Specified for an extended range of negative 40 raised to the composed with power C positive 105 raised to the composed with power C Core Functionality
: Manages power sequencing, keyboard scanning, thermal monitoring, and communication with the BIOS/firmware. Chipset Elektronik Common Applications Copyright notice: All trademarks are property of their
This chip is frequently found in laptop architectures from around 2008–2012, particularly in consumer and professional notebooks such as: Apple MacBook Pro
: Models like the A1286 (Late 2011) utilize this chip for BIOS/EFI firmware management. Wistron Motherboards
: Often integrated into designs using the Intel Penryn or ICH9M chipsets. General Laptop Repair
: It is a critical component for power-on sequences; failure often results in a "no power" or "no boot" state. WIT Computers Datasheet and Download Resources
While full manufacturer datasheets can be restricted to OEM partners, technical summaries and PDF extracts are available through electronic component distributors and archives: Ariat-Tech Datasheet Archive
: Provides inventory status and basic technical documentation. The Datasheet Archive
: Contains abstract details and contextual block diagrams for motherboard integration. Veswin Components
: Offers detailed information including pinout diagrams, pin voltage specifications, and circuit schematics. ariat-tech.com Procurement Information
I cannot directly provide a PDF file or a download link for the Winbond WPCE773LA0DG datasheet, as doing so would likely violate copyright. Datasheets are proprietary documents owned by the manufacturer (Winbond/Nuvoton) or their authorized distributors.
However, I can give you a structured "paper-style" summary of what such a datasheet typically contains, based on publicly available information for the WPCE775 series (the WPCE773 is a variant in that family). This will help you understand the component's key features for research or documentation purposes.
The chip manages the matrix scanning of the laptop keyboard. It handles debouncing, ghost key prevention, and transmits scan codes to the host via the LPC bus.
The Winbond WPCE773LA0DG is not a standard off-the-shelf Super I/O chip. It belongs to Winbond’s advanced embedded controller family, designed specifically for:
Unlike generic desktop Super I/O chips, the WPCE773LA0DG integrates an embedded 8051-based microcontroller core. This allows OEMs to offload keyboard scanning, fan speed control (PWM), battery management communication, and thermal throttling from the main CPU.
If the Nuvoton website redirects you to a generic page, use the Wayback Machine or trusted engineering archives like:
Note: Never download from unverified file-sharing sites (e.g., MediaFire, Uploaded.to) as they often repackage malicious executables as PDFs.
The phrase "pdf download 2021" in the title highlights a specific problem in the electronics repair industry.
A laptop refuses to turn on. The main CPU gets power, but there is no keyboard response. The datasheet’s Power Sequencing Diagram (Chapter 5.2) shows the exact order of the LPC reset and PWR_GOOD signals. Technicians use the pinout table (Chapter 2.4) to probe pin #78 (VSB) and pin #104 (LPC_CLK).
