F71869A
1. General Description
The F71869A which is the featured IO chip for PC system is equipped with one IEEE 1284
Parallel Port, two UART Ports, one 80 port (multi with COM2), Hardware Keyboard Controller,
SIR, CIR with RC6 and SMK QP protocols and one FDC. The F71869A integrates 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 temperature measurement for CPU
thermal diode or external transistors 2N3906. Others, the F71869A supports newest AMD TSI
and Intel PECI 3.0 interfaces and INTEL Ibex PEAK SMBus for temperature sensing and
provides the power sequence controller function for AMD platform.
The F71869A provides flexible features for multi-directional application. For instance, the
F71869A provides 58 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/Stage Auto Mode/Linear Auto Mode for users’ selection.
A power saving function which is in order to save the current consumption when the system is in
the soft off state is also integrated a power saving function. The power saving function supports that
system boot-on not only by pressing the power button but also by the wake-up event. When the
system enters the S4/S5 state, F71869A 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 the S4/S5 states. At the G3-like
state, the F71869A consumes the 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.
These features as above description will help you more and improve product value. Finally,
the F71869A is powered by 3.3V voltage, with the LPC interface in the green package of
128-LQFP (14*14).
6
Oct., 2011
V0.19P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
