Product Summary

The FW82801EB is an Intel 82801E Communications I/O Controller Hub (C－ICH). The FW82801EB 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 as shown in Table 1. The LAN controllers are located on Bus 1.

Parametrics

FW82801EB absolute maximum ratings: (1) Case Temperature under Bias: 0℃ to +109℃; (2) Storage Temperature: －55℃ to +150℃; (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; (5)(VREF=5 V): －0.5 to VREF + 0.3 V; (6) 1.8 V Supply Voltage with Respect to Vss: －0.5 to +2.7V; (7) 3.3 V Supply Voltage with Respect to Vss: －0.5 to +4.6 V; (8) 5.0 V Supply Voltage (Vref) with Respect to Vss: －0.5 to +5.5 V; (9) Maximum Power Dissipation: 2.0 W.

Features

FW82801EB 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) Two cascaded 8237 DMA controllers; (5) Integrated 82C54－compatible timers; (6) Real－time clock with 256－byte batterybacked CMOS RAM; (7) Supports IRQ1/IRQ12 emulation to avoid external keyboard controller; (8) 1.8 V operation with 3.3 V I/O. 5 V tolerance on many buffers, including PCI and IDE; (9) Package: 421 BGA.

Diagrams

RG82865 pin connection