F71889E
General Description

The F71889E which is the featured IO chip for new generational PC system is equipped with one IEEE 1284 parallel port,two UARTports, KBC, 80-Port, SIR, and VID controller. The F71889E integrated with hardware monitor, 9 sets of voltage sensor, 3 sets of creative auto-controlling fans and 3 temperature sensor pins for the accurate dual current type temp. measurement for CPU thermal diode or external transistors 2N3906.

The F71889E provides flexible features for multi-directional application. For instance, supports Bus Interface pins, provides 54 GPIO pins (multi-pin), IRQ sharing function also designed in UART feature for particular usage and accurate current mode H/W monitor will be worth in measurement of temperature, provides 3 modes fan speed control mechanism included Manual Mode/Speed Mode/Temperature Mode for users’ selection.

 Additionally, integrated 80-Port, and 5VDUAL voltage switch and adjustable voltage reference outputs related functions. The 80-Port is for engineering and debuging usage. F71889E also provides 5V dual controller and some voltage reference outputs for system application. Others, the F71889E supports newest AMD new interface TSI and Intel PECI /SST interfaces for temperature reading. These features will help you more and improve product value.

In order to save the current consumption when the system is in the soft off state which is so called power saving function. The power saving function supports the system boot-on not only by pressing the power button but also by the wake-up event. When the system enters the S3/S4/S5 state, F71889E can cut off the VSB power rail which supplies power source to the devices like the LAN chip, the chipset, the SIO, the audio codec, DRAM, and etc. The PC system can be simulated to G3-like state when system enters S3/S4/S5 states. At the G3-like state, the F71889E consumes 5VSB power rail only. The integrated two control pins are utilized to turn on or off VSB power rail in the G3-like status. The turned on VSB rail is supplied to a wake up device to fulfill a low power consumption system which supports a wake up function.

 Finally, the F71889E is powered by 3.3V voltage, with the LPC interface in the package of 128-LQFP green package.

  • FEATURES
  • PACKAGE
  • ATTACHMENTS

  • General Functions

-       Comply with LPC Spec. 1.1

-       Support DPM (Device Power Management), ACPI

-       Bus Interface for CPU use

-       Provides two UARTs, KBC and Parallel Port

-       16 pins VID controller for VRM 11.x and OTF

-       Serial VID controller with CORE_TYPE input for AMD Processor

-       H/W monitor functions

-       Reference voltage outputs support

-       5VDUAL voltage switch

-       80-Port interface from LPT or COM2

-       Support AMD TSI interface and Intel SST/PECI interface

-       Comply to PECI Spec.3.0

-       Support Ibex protocol SMBus interface

-       Support LED blinking function at deep S5

-       54 GPIO Pins for flexible application

-       Provide Power Saving Funtion (Comply EUP lot 6.0)    

-       24/48 MHz clock input

-       Packaged in 128-LQFP green package and powered by 3.3VCC

  • UART

-       Two high-speed 16C550 compatible UART with 16-byte FIFOs

-       Fully programmable serial-interface characteristics

-       Baud rate up to 115.2K

-       Support IRQ sharing

  • Infrared

-       Support IrDA version 1.0 SIR protocol with maximum baud rate up to 115.2K bps

  • Parallel Port

-       One PS/2 compatible bi-directional parallel port

-       Support Enhanced Parallel Port (EPP) Compatible with IEEE 1284 specification

-       Support Extended Capabilities Port (ECP) Compatible with IEEE 1284 specification

-       Enhanced printer port back-drive current protection

  • Keyboard Controller

-       Compatibility with the 8042

-       Support PS/2 mouse

-       Support both interrupt and polling modes

-       Hardware Gate A20 and Hardware Keyboard Reset

  • Hardware Monitor Functions

-       3 dual current type (±3℃) thermal inputs for CPU thermal diode and 2N3906 transistors

-       Temperature range -40℃~127℃

-       9 sets voltage monitoring (6 external and 3 internal powers)

-       High limit signal (PME#) for Vcore level

-       3 fan speed monitoring inputs

-       3 fan speed PWM/DC control outputs(support 3 wire and 4 wire fans)

-       Issue PME# and OVT# hardware signals output

-       Case intrusion detection circuit

-       WATCHDOG# comparison of all monitored values

  • 80-Port Interface

-       Monitor 0x80 Port and output the value via signals defined for 7-segment display.

-       High nibble and low nibble are outputted interleaved at 1KHz frequency.

-       80-Port output by LPT or COM2 interface.

  • 8-IN and 8-OUT VID Controller for VRM11.x and OTF

  • Serial VID Controller with CORE_TYPE Input for AMD CPU application

  • Integrate AMD TSI interface

  • Integrate Intel SST interface

  • Comply to PECI 3.0

  • Support Ibex Protocol SMBus interface

  • Support FSB over clocking control bus

  • 5V Dual Voltage Switch

-       Provide ACPI-compliant 5VDUAL voltage switch

-       5VDUAL for USB/Keyboard/Mouse application

  • Adjustable Voltage Reference Outputs

-       Enable pin for VREF2 and 3 Voltage Reference Output control

-       0.9V default output on VREF1~3 pins

-       Adjustable voltage range from 0~2.295V

  • Power Saving Function

-       G3-like Timing Control

-       Comply With EUP Lot 6.0

-       Three Control Pins for VSB Power Sources Control

-       Two Event Input Pins for Wakeup Devices

  • Package

-       128-pin LQFP green package

Noted: Patented TW207103 TW207104 TW220442 US6788131 B1 TWI235231 TW237183 TWI263778

128-LQFP Green Package
If you are interested in obtaining the most updated information, please contact us at marketing@fintek.com.tw
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