Wpce773la0dg Datasheet Pdf Verified Site

The verified datasheet explains the In-System Programming (ISP) procedure:

Many foundry websites offer "datasheets" that are actually marketing briefs. The verified PDF must include the Nuvoton watermark and full revision history.

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. wpce773la0dg datasheet pdf verified

Answer (from Mechanical Drawing, page 108): Pin #1 is indicated by a chamfered edge on the top-left corner of the package, next to a laser-marked dot. On the PCB, Pin #1 is at the corner nearest to the inductor (usually L5 or L6 on laptop boards).

Answer (from Section 1.3): No. The "773" has 64KB Flash; the "775" has 128KB Flash. While pin-compatible, the firmware is not interchangeable. The verified datasheet warns that cross-flashing will cause a hard lock. Answer (from Mechanical Drawing, page 108): Pin #1

Chart 4-3 in the verified datasheet shows the strict order:

Common Failure Point: If the datasheet is missing page 34 (Power-up timing), technicians often wrongly replace the EC when the issue is actually a missing clock signal. Common Failure Point: If the datasheet is missing

Manufacturer: Nuvoton Technology Corporation (formerly Winbond)

Series: WPCE77x – ARM® Cortex™-M0 based 32-bit Microcontroller
Part Number: WPCE773LA0DG
Package: LQFP-48 (or similar – check official datasheet for exact pin count)
Core: ARM Cortex-M0, up to 50 MHz
Flash Memory: 128 KB (verify with official datasheet)
SRAM: 16 KB (verify with official datasheet)

Key Features:

Typical Applications: