Product Summary

The FW82801DBM is a CH4 providing extensive I/O support. The ICH4 incorporates a variety of PCI functions that are divided into three logical devices (29, 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 USB Controllers and the LAN Controller.

Parametrics

Absolute maximum ratings: (1)Voltage on Any 3.3 V Pin with Respect to Ground: –0.5 to Vcc3_3 + 0.5 V; (2)Voltage on Any 5 V Tolerant Pin with Respect to Ground (VREF=5V): –0.5 to VREF + 0.5 V; (3)1.5 V Supply Voltage with Respect to Vss: –0.5 to +2.1 V; (4)1.8 V Supply Voltage with Respect to Vss: –0.5 to +2.1 V; (5)3.3 V Supply Voltage with Respect to Vss: –0.5 to +4.6 V; (6)5.0 V Supply Voltage (Vref) with Respect to Vss: –0.5 to +5.5 V.

Features

Features: (1)PCI Bus Interface; (2)Integrated LAN Controller; (3)Integrated IDE Controller; (4)AC97 Link for Audio and Telephony CODECs; (5)Interrupt Controller; (6)New: 1.5 V operation with 3.3 V I/O; (7)Timers Based on 82C54; (8)Enhanced Hub Interface buffers improve routing flexibility (Not available with all Memory Controller Hubs); (9)Firmware Hub (FWH) Interface supports BIOS memory size up to 8 MB; (10)Low Pin Count (LPC) Interface: Supports two Master/DMA devices.; (11)Enhanced DMA Controller; (12)GPIO: TTL, open-drain, inversion; (13)Package 31x31 mm 421 BGA.

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
FW82801DBM
FW82801DBM
Other

Data Sheet
Negotiable 
FW82801DBM SL6DN
FW82801DBM SL6DN
Other

Data Sheet
Negotiable