F81865F View Datasheet(PDF) - Feature Integration Technology Inc.

Part Name

Description

Manufacturer

F81865F

Super IO with 6 UARTs

Feature Integration Technology Inc. 

F81865

1. General Description

The F81865 is the featured IO chip for Industrial PC system. Equipped with one IEEE

1284 parallel port, 6 UART ports with 9-bit protocol, KBC, Serial Peripheral Interface (SPI),

SIR and one FDC. The F81865 integrated with hardware monitor, 7 sets of voltage sensor, 2

sets of creative auto-controlling fans and 2 temperature sensor pins for the accurate dual

current type temperature measurement for CPU thermal diode or external transistors

2N3906.

The F81865 provides flexible features for multi-directional application. For instance,

supports 53 GPIO pins, IRQ sharing function designed in UART feature for particular usage

and accurate current mode H/W monitor will be worth in measurement of temperature, the

F81865 also integrated SPI interface. The SPI interface is for BIOS usage including bridge

function. Others, the F81865 supports newest Intel PECI interfaces for new generational

CPU temperature use. Furthermore, F81865 provides independent RTC function.

These features as above description will help you more and improve product value.

Finally, the F81865 is powered by 3.3V voltage, with the LPC interface in the package of

128-PQFP.

2. Feature List

General Functions

¾ Comply with LPC 1.1

¾ Support ACPI 3.0

¾ Provides one FDC, KBC and Parallel Port

¾ Provide 6 fully functional UART and 1 SIR

¾ 9-bit Protocol for UARTs

¾ Support IRQ Sharing function.

¾ H/W monitor functions

¾ SPI interface for BIOS

¾ RTC function

¾ Support PECI 1.0 interface

¾ 53 GPIO Pins for flexible application

¾ 24/48 MHz clock input

¾ Packaged in 128-PQFP and powered by 3.3VCC

5

May, 2010

V0.28P

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