For those repairing older Apple hardware (e.g., MacBook Pro A1278), Wit Computers lists this chip specifically for BIOS/EFI firmware interactions.
While a complete datasheet is unavailable, crucial operating limits and characteristics have been compiled from reliable component database sources:
The search term is not just a random query; it is a desperate call from engineers who need authentic, uncorrupted, and complete specification sheets . Too many websites offer broken links, scanned copies missing pages, or third-party "summary" documents.
Manages the charging circuit, monitoring battery levels, and communicating with the AC adapter. Troubleshooting and Repair Tips
The chip is active even when the computer is shut down, running on the 3D3V_AUX_S5 or 5V_AUX_S5 standby rails. It monitors the physical power button, triggers the step-down regulators (such as the ISL62392 or RT8202A ), and coordinates the transition between system power states (S0 to S5). 2. Embedded Keyboard Controller (KBC) wpce773la0dg datasheet pdf verified
I’ve verified the integrity of the PDF attached below. It contains the full pin configuration, electrical characteristics, and package data.
PWM (Pulse Width Modulation) outputs for speed control.
Extreme extended range from -40°C to 105°C ( TAcap T sub cap A Lead-Free Status: RoHS Compliant Motherboard Functionality and Role
For engineers or technicians needing precise pinouts or circuit diagrams, verified documentation can be found through authorized electronic component distributors: Ariat Tech: Provides detailed stock info and PDF downloads. For those repairing older Apple hardware (e
, it is essential to use trusted distributors and archives to avoid inaccurate pinout diagrams. You can access technical information and request full PDFs from these reliable sources: Ariat-Tech Technical PDF
If you are currently debugging a circuit board using this IC, let me know the device is showing or which pin measurements you need assistance analyzing. Share public link
The is an Embedded Controller (EC) and I/O controller chip manufactured by Nuvoton Technology Corporation (formerly under the Winbond brand). It is commonly used in laptop motherboards, such as those for Apple MacBook Pro models, to manage system-level tasks. Key Specifications & Features Package Type: QFP-128 (Quad Flat Package with 128 pins).
: Lists detailed availability, equivalents, and basic electrical parameters. ariat-tech.com replacement equivalents for a particular motherboard repair? WPCE773LA0DG Datasheets - ariat-tech.com Manages the charging circuit, monitoring battery levels, and
WPCE773LA0DG is an Embedded Controller (EC) manufactured by Nuvoton Technology Corporation (and formerly associated with Winbond Electronics
Verify the 3.3V_S5 (auxiliary) voltage rail entering the component to ensure it has power.
WPCE773LA0DG Datasheet PDF Verified: Complete Technical Guide
Offers a comprehensive technical summary and stock availability. The Datasheet Archive