Wpce773la0dg Datasheet Pdf Verified [extra Quality]

Commonly observed pins on LQFP-48:

Section 5.3 specifies ICC(max) = 180 mA at 25 MHz. If the chip exceeds 60°C (140°F) without load, it is likely shorted (VDDC to GND). The datasheet provides a thermal resistance of 20°C/W.

Directly interfaces with the internal laptop keyboard and often the touchpad. Thermal Control:

Verify the 3.3V_S5 (auxiliary) voltage rail entering the component to ensure it has power. wpce773la0dg datasheet pdf verified

The WPCE773LA0DG is a high-integration logic IC designed for power-efficient portable computing.

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.

High-performance 8-bit core compatible with 8051 architecture. Commonly observed pins on LQFP-48: Section 5

128-pin Quad Flat Package (QFP-128 / TQFP-128) Operating Temperature Range: Extended range from TAcap T sub cap A

Fans running at maximum speed constantly or not running at all. Battery not charging or not detected. Tips for Repair Professionals

The WPCE773LA0DG functions as a Super I/O and Advanced Power Management Controller. It communicates with the Southbridge or Platform Controller Hub (PCH) via the Low Pin Count (LPC) interface. Specification Nuvoton Technology Part Number WPCE773LA0DG Package Type LQFP (Low-profile Quad Flat Package) Pin Count Host Interface LPC (Low Pin Count) Bus Specification v1.1 Core Architecture Compact RISC Embedded Processor Core Operating Voltage 3.3V (with 5V tolerant I/O pins) Core Architecture and Internal Modules Directly interfaces with the internal laptop keyboard and

The WPCE773LA0DG is a specialized low-power microcontroller that acts as the "gatekeeper" between the laptop's main components and the user. It is the first chip to receive power when a laptop is plugged in and is responsible for the entire startup sequence.

The EC fails to read thermal data and defaults to a 100% fan duty cycle for safety.