The PC87307ICE/VUL is a highly integrated embedded controller from National Semiconductor (now part of Texas Instruments). It's commonly used in laptop and notebook computers to manage various system functions. The /VUL suffix indicates specific packaging or configuration details.

Applications

• Laptop and Notebook Computers
• Embedded Systems
• Super I/O Controller

Features

• Super I/O functionality: Floppy Disk Controller (FDC), Serial Ports (UARTs), Parallel Port (LPT)
• Keyboard Controller
• Real-Time Clock (RTC)
• Power Management Features
• Infrared (IrDA) Interface

Benefits

• Integrates multiple functions into a single chip, reducing board space and cost.
• Provides essential I/O interfaces for legacy devices.
• Manages power consumption to extend battery life.
• Provides accurate timekeeping.
• Supports infrared communication.

Additional Details

The PC87307ICE/VUL typically communicates with the host processor via the LPC (Low Pin Count) bus. It includes controllers for floppy disk drives, serial ports (UARTs), and a parallel port. It also incorporates a keyboard controller for managing keyboard input. The integrated real-time clock provides accurate timekeeping even when the system is powered off. The PC87307ICE/VUL implements various power management features to minimize power consumption in different operating modes. It also supports an infrared (IrDA) interface for wireless communication. Consult the datasheet for detailed register descriptions, programming information, and electrical specifications. The specific functions and features may vary slightly depending on the exact part number and revision. Proper configuration of the device is crucial for optimal performance.