FW82801DB

Product Summary

The FW82801DB is a highly integrated multifunctional communications I/O controller hub that provides the interface to the PCI bus and integrates many of the functions needed in today communications applications. It incorporates a variety of PCI functions that are divided into two logical devices (30 and 31) on PCI Bus 0 and one device on Bus 1. Device 30 is the Hub Interface-to-PCI bridge. Device 31 contains all the other PCI functions, except the LAN controller .

Parametrics

Absolute maximum ratings:(1)Case Temperature under Bias: 0o C to +109o C; (2)Storage Temperature: -55o C to +150o C; (3)Voltage on Any 3.3 V Pin with Respect to Ground: -0.5 to Vcc + 0.3 V; (4)Voltage on Any 5 V Tolerant Pin with Respect to Ground(VREF=5 V): -0.5 to VREF + 0.3 V; (5)1.8 V Supply Voltage with Respect to Vss: -0.5 to +2.7V; (6)3.3 V Supply Voltage with Respect to Vss: -0.5 to +4.6 V; (7)5.0 V Supply Voltage (Vref) with Respect to Vss: -0.5 to +5.5 V; (8)Maximum Power Dissipation: 2.0 W.

Features

Features:(1)Supports Intel processors, the 82815E GMCH and the 82810E GMCH; (2)8-Bit Hub Interface:266 Mbyte/s maximum throughput; (3)Two integrated LAN controllers; (4)USB:Includes one UHCI Host Controller with a total of two ports;USB 1.1 compliant; (5)PCI Bus interface:Supports PCI Rev 2.2 specificatioat; (6)33 MHz;133 Mbyte/s maximum throughput; (7)Low-Pincount (LPC) interface; (8)Firmware Hub (FWH) interface:Supports 8-Mbyte memory size; (9)Integrated IDE controller supports Ultra100 DMA, Ultra66 and Ultra33 DMA mode transfers; (10)Interrupt Controller:Two cascaded 82C59 interrupt controllers:Integrated I/O (x) APIC supporting 24 interrupts;15 interrupts supported i8259 mode; (11)Two cascaded 8237 DMA controllers; (12)Integrated 82C54-compatible timers; (13)Real-time clock with 256-byte batterybacked CMOS RAM; (14)System Management Bus (SMBus):Compatible with most two-wire components that are also I2C compatible;Slave interface allows external microcontroller to access system resources; (15)GPIO:Exact number varies by configuration. Maximum: 12 inputs, eight outputs, four I/O; (16)Integrated 16550 compatible UARTs:Two UARTs;Serial Interrupts; (17)Supports IRQ1/IRQ12 emulatioto avoid external keyboard controller; (18)1.8 V operatiowith 3.3 V I/O. 5 V tolerance omany buffers, including PCI and IDE; (19)Package: 421 BGA.

Diagrams