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The FW82801AA is a chipset component manufactured by Intel, specifically part of the Intel 82801AA I/O Controller Hub (ICH).

Specifications:

• Manufacturer: Intel
• Part Number: FW82801AA
• Series: 82801AA (ICH)
• Function: I/O Controller Hub (Southbridge)
• Compatible Chipsets: Intel 810, 810E, 820, 820E, 840
• Bus Interface: Hub Interface (connects to Memory Controller Hub - MCH)
• PCI Support: PCI 2.2 compliant
• USB Ports: Supports up to 2 USB 1.1 ports
• IDE Controller: Integrated Ultra ATA/33 (supports up to two IDE devices)
• AC'97 Audio: Integrated audio controller
• SMBus: System Management Bus support
• LPC Interface: Low Pin Count (LPC) interface for legacy I/O
• Package Type: Typically BGA (Ball Grid Array)

Descriptions:

The FW82801AA is an I/O Controller Hub (ICH) designed to work alongside Intel's Memory Controller Hub (MCH) in early Pentium III and Celeron-based systems. It manages peripheral interfaces such as PCI, USB, IDE, and audio functions.

Features:

• Legacy I/O Support: Includes LPC interface for legacy devices (serial, parallel, PS/2, floppy).
• PCI Expansion: Provides PCI bus connectivity for add-on cards.
• Integrated Audio: AC'97 compliant audio controller.
• Low Power Management: Supports ACPI power management.
• SMBus Support: Allows communication with system sensors and other devices.

This chip was commonly used in Intel 810, 820, and 840 chipset-based motherboards in the late 1990s and early 2000s.