General Description

IT8705F is a LPC Interface based highly integrated Super I/O. IT8705F provides the most commonly used legacy Super I/O functionality plus the latest Environment Control initiatives, such as Hardware Monitor, Fan Speed Controller and ITE’s “SmartGuardian” function. The device’s LPC interface complies with Intel “LPC Interface Specification Rev. 1.0” (Sept. 29, 1997). IT8705F meets the “Microsoft PC98/99/2001 System Design Guide” requirements and is ACPI compliant.

IT8705F features the enhanced hardware monitor providing 3 thermal inputs from remote thermistors, thermal diode or diode-connected transistor (2N3904).

Feature

l Low Pin Count Interface

l PC98/99/2001 & ACPI Compliant 

l Enhanced Hardware Monitor

l Fan Speed Controller

l Game Ports

l Two 16C550 UARTs

l Dedicated MIDI Interface

l Consumer Remote Control (TV Remote) IR with Power-up Feature

l IEEE1284 Parallel Port 

l Floppy Disk Controller

l Keyboard Controller

l Smart Card Reader

l 48 General Purpose I/O Pins

l Flash ROM Interface

l Smart Guardian Controller

l Single 24/48 MHz Clock Inputs

l Single +5v Power Supply

l 128-pin PQFP

Data Sheet

IT8705F v0.4.1 (Please note that it is applicable to G version)