Communicating via the System Management Bus (SMBus/I2C), the WPCE773LA0DG interfaces directly with the smart battery controller and primary charging IC (such as the ISL88731C or MAX8731AE frequently found paired next to it in circuit schematics) to regulate charging cycles and report precise battery levels. WPCE773LA0DG Circuit Integration Map
The is a highly specialized embedded controller (EC), commonly known as a Super I/O or multi-controller chip, engineered by Winbond Electronics (with product lines maintained and distributed via Nuvoton Technology Corporation America ). Finding a verified WPCE773LA0DG datasheet PDF is crucial for component verification, pinout mapping, and troubleshooting laptop motherboards where this integrated circuit (IC) dictates low-level system operations.
: The operating system states "Plugged in, not charging" despite a healthy battery and functioning power adapter. Troubleshooting with the Datasheet Pinout
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.
Because the WPCE773LA0DG governs initial power states, any structural failure or internal short inside this chip will completely paralyze a computer. Common indicators of a faulty multi-controller include: wpce773la0dg datasheet pdf verified
The official datasheet remains the "golden reference" for engineers, but this guide compiles all available public intelligence to assist in repairs and sourcing until that formal document can be obtained. Always double-check physical packaging variants as this chip is known to exist in drastically different form factors.
Useful for viewing the chip in the context of full motherboard schematics.
The verified datasheet explains the In-System Programming (ISP) procedure:
Table 10-7 details the VBAT (pin 128) monitoring. If voltage drops below 2.0V, the EC automatically resets the RTC registers. This is a common cause of "CMOS checksum error" on motherboards using this chip. Replace the backup battery before replacing the EC. Communicating via the System Management Bus (SMBus/I2C), the
Would you like help interpreting a datasheet you already have, or guidance on how to search for the official PDF from Nuvoton’s website?
Integrated keyboard matrix controller (KBC). 3. WPCE773LA0DG Datasheet PDF Verified: What to Look For
Disclaimer: Component information and datasheet availability can change. Always confirm with the latest documentation from the manufacturer.
If you are currently diagnosing a motherboard or replacing this IC, let me know the or the motherboard board identifier (e.g., LA-XXXXP). I can help you trace the power rails or locate the exact schematic pin-mapping for your board layout. Share public link : The operating system states "Plugged in, not
The WPCE773LA0DG acts as the motherboard's "gatekeeper," managing tasks that do not require the main CPU to be active: Power Management:
Provides contextual block diagrams and circuit schematics for the WPCE773 family. Veswin Product Page
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The verified datasheet includes two critical application notes that are missing from unverified copies.