Wpce773la0dg Datasheet Pdf Verified · Instant & Top

This chip acts as a gateway for various hardware peripherals. In typical system designs, it manages:

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Output signal sent to the Southbridge/PCH indicating power rails are stable.

The WPCE773LA0DG serves as the primary system management controller on older laptop motherboards (such as Intel Cantiga-GM and Mobile Penryn architectures). It interfaces directly with the Southbridge or Platform Controller Hub (PCH) via the Low Pin Count (LPC) bus. Technical Specification Winbond Electronics / Nuvoton Package Type LQFP-128 / TQFP-128 (Quad Flat Package) Pin Count Interface Bus LPC (Low Pin Count) Interface Operating Temperature -40°C to +105°C (Extended Industrial Range) Compliance Lead-Free / RoHS Compliant Core Functions wpce773la0dg datasheet pdf verified

The laptop does not respond to the power button, and no standby lights turn on.

The is a highly specialized Integrated Circuit (IC) that served as a critical Super I/O (Input/Output) controller in many laptop and desktop motherboards, particularly during the late 2000s, manufactured by Winbond Electronics (later Nuvoton Technology Corporation America). It handles essential system functions such as keyboard control, mouse interface, power management, and legacy port support.

is widely used in computing platforms for power management and keyboard scanning functions. This chip acts as a gateway for various hardware peripherals

[Resource] WPCE773LA0DG Datasheet PDF (Verified)

Users on repair forums have shared critical real-world data points that effectively serve as application notes:

When searching for a "verified" datasheet, it is important to use reputable electronic component distributors and archives. It interfaces directly with the Southbridge or Platform

Contains contextual schematic information where this chip is used in system diagrams.

Pins like PWRBTN# , RSMRST# (Resume Reset), and PM_SLP_S3# / PM_SLP_S5# orchestrate the transitions between system power states.

According to verified repair documentation, a critical function is monitoring the AC_IN# signal (Pin 93). This signal, normally a logic low (0V), informs the EC that the AC adapter is connected. If this line is stuck high (3.3V) due to a faulty AC adapter detection circuit, the EC will not initiate the power-on sequence, resulting in a completely "dead" machine. This is a common failure point documented by professional repair technicians.