Winbond Wpce773la0dg Datasheet Pdf __top__ Download 2021 May 2026
The Winbond WPCE773LA0DG is a highly integrated embedded controller (EC) commonly used in PC systems, particularly within laptop motherboards and Apple MacBook designs. As of 2021, it remains a critical component for hardware monitoring, power management, and peripheral interface control. Technical Overview & Specifications
The WPCE773LA0DG is designed to handle low-level system tasks, offloading them from the main CPU to ensure efficient system management.
Microcontroller Core: Features an embedded 8051-compatible microcontroller.
Memory: Includes 128 KB of Flash memory for firmware and 4 KB of SRAM.
Interface: Communicates via a Low Pin Count (LPC) interface to the host CPU.
Package Type: Typically available in a QFP-128 (Quad Flat Package).
Operating Temperature: Specified for an extended range of -40°C to 105°C. Key Functions: Keyboard Controller (KBC) and PS/2 mouse support.
System Hardware Monitoring: Manages fan speeds (via fan tachometer) and power sequencing.
Peripheral Support: General Purpose I/O (GPIO), Pulse Width Modulation (PWM), and Analog-to-Digital Converter (ADC).
Safety Features: Integrated Watchdog Timer (WDT) to prevent system hang-ups. Winbond WPCE773LA0DG Datasheet PDF Download
While official Winbond documentation is often restricted to registered OEMs, several reliable third-party repositories provide the WPCE773LA0DG datasheet for repair technicians and engineers:
AllDatasheet: A massive database for electronic components where you can find technical PDFs and equivalent parts.
The Datasheet Archive: Useful for finding legacy documentation and contextual circuit diagrams.
Ariat-Tech: Provides specific technical info and stock availability for various Winbond and Nuvoton variants. Common Applications
This chip is most frequently encountered in laptop motherboard repair. It is a staple in many Apple MacBook models, such as the MacBook Air A1304 and MacBook Pro A1286/A1278, where it acts as the primary I/O controller. In these systems, a failure in the WPCE773LA0DG often leads to power-on issues, keyboard/trackpad failure, or fan control problems. Purchasing and Availability (2021 Update)
In the 2021 market, the WPCE773LA0DG was noted for having limited supply and a moderate "fake threat" level of approximately 34% in the open market.
Condition: Available as "Original New" (factory sealed) or "Manufacturer Refurbished".
Suppliers: Major distributors like WIN SOURCE and Jotrin Electronics typically list stock for these ICs. WINBOND 2W2-WPCE773LA0DG Datasheet(PDF) - W83627HF winbond wpce773la0dg datasheet pdf download 2021
WINBOND 2W2-WPCE773LA0DG Datasheet(PDF) - W83627HF - Winbond. ALLDATASHEET.COM WPCE773LA0DG Datasheets - ariat tech
The Winbond WPCE773LA0DG is a specialized Super I/O (Input/Output) controller primarily used in laptop motherboards to manage low-level system functions. While it was originally developed by Winbond Electronics Corporation, many listings now associate it with Nuvoton Technology, which acquired Winbond's Logic Business. Core Overview
Component Type: Multi-I/O Controller / Keyboard Controller (KBC). Package: 128-pin LQFP/QFP (Low-profile Quad Flat Package).
Common Applications: Frequently found in Apple MacBook Pro and MacBook Air motherboards (e.g., A1286, A1278 series) and various Wistron-manufactured laptop boards.
Operational Range: Extended temperature range of -40°C to 105°C. Key Technical Specifications
WPCE773LA0DG WINBOND Интегральные схемы (ИС)
WPCE773LA0DG. Hot Sale. Интегральные схемы (ИС) QFP-128 ; Производитель : Winbond Electronics Corporation America. Упаковка/Ящик : www.jotrin.ru WPCE773LA0DG WINBOND Processors / Microcontrollers
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 a highly integrated embedded
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.
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
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
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 What Makes the 2021 Datasheet Revision Special
: 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
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
What Makes the 2021 Datasheet Revision Special?
When searching for the "winbond wpce773la0dg datasheet pdf download 2021," you might find older versions (2018, 2019) on various third-party sites. However, the 2021 revision includes critical updates:
- Errata Corrections: Winbond fixed several silicon bugs related to LPC bus timing under heavy DMA load.
- Updated Timing Diagrams: More precise waveforms for UART baud rate generation and PWM fan control.
- Register Map Clarifications: Additional notes on reserved registers that should not be modified.
- Application Notes Integration: Guidelines for routing the 128-pin LQFP on 2-layer vs. 4-layer PCBs.
- Obsolete Part Notices: The 2021 revision may indicate which Winbond parts are being phased out, helping with long-term product lifecycle planning.
Scenario 3: Fan Control Tuning for Noise Reduction
A server manufacturer needs to reduce acoustic noise. The WPCE773 includes advanced Smart Fan Control curves. Sections 12.4 to 12.7 of the 2021 datasheet detail the look-up table for temperature-to-PWM mapping, allowing engineers to implement hysteresis.
Step 3: Verify the Checksum
After downloading, a legitimate 2021 datasheet should be:
- File Size: Approximately 2.8 MB to 3.2 MB
- Pages: 98 to 112 pages (including cover and revision history)
- Revision History: Last entry dated 2021
5.2 The "Firmware" Barrier
Even if a technician obtains the pinout, the WPCE773LA0DG is essentially a "blank" MCU without its internal firmware. The specific behavior of the GPIO pins is defined by the code flashed onto the chip during manufacturing. Therefore, a datasheet alone is insufficient for replacement; the firmware binary is required.