Locating the WPCE773LA0DG datasheet from 2021 involves navigating dedicated semiconductor archives. Because Winbond classifies certain legacy EC datasheets as proprietary, public availability varies. Finding the PDF Document
Yes, but you will also need the Winbond EC Firmware Development Guide (separate document), which is not included in the basic datasheet. The datasheet focuses on hardware registers and pinouts.
Locate the WRST# (Warm Reset) or RSMRST# pin. It must pull up to
The is a specialized embedded controller primarily found in legacy laptop systems such as those from Acer, Packard Bell, and Compaq. The model number signifies a specific variant within a broader family of I/O and power management chips, crucial for motherboard functionality. This article consolidates technical specifications, sourcing information, and application details from various authoritative sources in one unified reference. winbond wpce773la0dg datasheet pdf download 2021
Monitors hardware temperature sensors via SMBus or analog inputs.
Dedicated clock (SCL) and data (SDA) channels to communicate with the smart battery, thermal sensors, and charger ICs.
: Specified for an extended range of -40°C to 105°C . Key Functions : Keyboard Controller (KBC) and PS/2 mouse support. The datasheet focuses on hardware registers and pinouts
The physical power button input signal. Dropping this line to 0V triggers the EC to start the boot cycle.
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The EC is the first major chip to wake up when power is applied. It monitors the power button input signal, manages ACPI power states (S0–S5), and orchestrates the systematic boot-up of DC-to-DC step-down converters. It interacts directly with power management ICs like the ISL62392 or TPS51125 to toggle 3D3V_S5 and 5V_S5 power rails. 2. Keyboard Matrix Control The model number signifies a specific variant within
Winbond Electronics (often associated with Nuvoton, which now handles Winbond's logic IC business). Package Type: QFP-128 (Quad Flat Package with 128 pins). Operating Temperature: Extended range from TAcap T sub cap A Primary Functions:
Available in a QFP-128 (Quad Flat Package) with 128 pins.
Are you troubleshooting a or motherboard fault?
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Using dedicated Pulse Width Modulation (PWM) channels and Analog-to-Digital Converters (ADCs), the chip acts in tandem with external sensors (such as the EMC2102) to track internal thermal parameters and adjust cooling fan rotational speeds dynamically. 4. Hardware Monitoring and Safety Interrupts