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
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 .
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. winbond wpce773la0dg datasheet pdf download 2021
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". The Winbond (Nuvoton) WPCE773LA0DG is a dedicated Super
Suppliers: Major distributors like WIN SOURCE and Jotrin Electronics typically list stock for these ICs. WINBOND 2W2-WPCE773LA0DG Datasheet(PDF) - W83627HF
WINBOND 2W2-WPCE773LA0DG Datasheet(PDF) - W83627HF - Winbond. ALLDATASHEET.COM WPCE773LA0DG Datasheets - ariat tech
Winbond WPCE773LA0DG : Super I/O Controller Overview and Datasheet Resources The Winbond WPCE773LA0DG
is a specialized Super I/O (Input/Output) controller primarily used in laptop motherboards to manage low-speed peripheral functions. Often found in legacy and refurbished laptop models, this integrated circuit (IC) is essential for system tasks like power management, keyboard control, and hardware monitoring. Key Specifications and Features
Based on technical listings from distributors like Ariat Tech and Veswin, the WPCE773LA0DG includes the following characteristics:
Manufacturer: Winbond Electronics (often associated with Nuvoton, which now handles Winbond's logic IC business). Package Type: QFP-128 (Quad Flat Package with 128 pins). Operating Temperature: Extended range from TAcap T sub cap A Primary Functions:
Keyboard Controller (KBC): Manages input from the laptop keyboard and touchpad.
System Management: Handles power sequencing and fan speed control.
LPC Interface: Communicates with the CPU/Southbridge via the Low Pin Count (LPC) bus.
Application: Commonly integrated into laptop designs such as the Wistron JM70, HOMA, and various Apple Macbook boards from the 2008–2011 era. WPCE773LA0DG Datasheet PDF Download
Finding a comprehensive 2021-updated datasheet for this specific controller can be challenging because it is often considered a "limited supply" or legacy component. However, you can find technical documents and block diagrams through the following resources: Winbond WPCE773LA0DG 773LA0DG IO Controller Chip ICs
The Winbond WPCE773LA0DG is an Embedded Controller (EC) primarily used in laptop motherboards (such as those for Dell, Acer, and HP) to manage keyboard functions, power sequencing, and thermal monitoring. While Winbond originally manufactured this series, the product line was later transitioned to Nuvoton Technology. 📄 Datasheet Download & Resources
Direct full datasheets for this specific IC are often proprietary and restricted to laptop manufacturers (OEMs). However, you can access technical snippets and order documents through these verified platforms: The Importance of the 2021 Datasheet Revision Why
Direct PDF Snippet: Access a technical summary and stock info from Ariat-Tech.
Datasheet Archive: Search for WPCE773 series schematics to view block diagrams and pinout configurations on Datasheet Archive.
Component Details: View extended temperature specs and packaging at Veswin. 🛠️ Key Technical Specifications
The WPCE773LA0DG is part of the WPCE77x family of high-performance microcontrollers. Manufacturer: Winbond (Nuvoton Technology) Package Type: (Thin Quad Flat Package with 128 pins)
Temperature Range: -40°C to +105°C (Extended/Industrial range) Category: Processors / Microcontrollers / Super I/O
Core Function: Laptop Keyboard Controller (KBC) and Power Management. 💡 Common Use Cases & Repairs
If you are searching for this datasheet for a repair, you will likely find it referenced in the schematics of older laptop motherboards. It often works alongside: Power ICs: Like the ISL62392 for system DC/DC conversion. Clock Generators: Such as the ICS9LPRS365B.
Charger ICs: Frequently paired with the ISL88731 or RT8202A. If you are looking for specific repair info, let me know: Which laptop model are you working on? Are you trying to reprogram the chip or replace it? WPCE773LA0DG - The Datasheet Archive
Why specifically the Winbond WPCE773LA0DG datasheet PDF download 2021? Semiconductor datasheets are updated to correct timing diagrams, add application notes, or clarify power-up sequences.
The 2021 revision of the WPCE773LA0DG datasheet is particularly valuable because it includes:
Using an outdated 2015 or 2017 datasheet could lead to design flaws that manifest as intermittent UART glitches or fan controller lockups.
The WPCE773LA0DG operates as the "brain" of the motherboard's power management subsystem. Its primary functions include:
The 128-pin QFP has a 14x14mm body with 0.4mm lead pitch. The 2021 datasheet adds clearer marking for pin 1 orientation and updated land pattern recommendations for automated optical inspection (AOI).
In 2021 and beyond, technicians rely on the following methods to access data typically found in a datasheet: