Fintek
Monitoring Items and Fan Speed Control
Pin No.
1
2
Pin Name
FANIN1
GPIO0
FANIN2
3
PWMOUT1
ADDR_TRAP
4
GPIO1
PWMOUT2
10
11
12
14
15
VIN3
VIN2
VIN1
VT2
VT1
Type
IN
t
IN
ts
/OD
8
IN
t
O
12
Feature Integration Technology Inc.
F75373
Description
0V to +3.3V amplitude fan tachometer input.
(Default)
General purpose I/O pin.
Default Open drain
0V to +3.3V amplitude fan tachometer input.
Fan speed control pin.
Address power on trapping pin. Internal pull down100k ohm
(Default) General purpose I/O pin.
Default Open drain
Fan speed control pin.
0V to 2.048V FSR Analog Inputs
0V to 2.048V FSR Analog Inputs
0V to 2.048V FSR Analog Inputs
Thermistor 2 terminal input
Thermistor 1 terminal input.
IN
tsd100k
IN
ts
/OD
12
O
12
AIN
AIN
AIN
AIN
AIN
Alert Signals and Others
Pin No.
5
Pin Name
GPIO2
SMI#
FAN_FAULT#
6
GPIO3
OVT#
Type
IN
ts
/OD
16
OD
16
OD
16
IN
ts
/OD
8
OD
8
OD
8
Description
(Default) General purpose I/O function. Default pure open drain
System management interrupt (Pure Open Drain)
This pin will be a logic
LOW
when the fan speed is abnormal.
(Default) General purpose I/O function. Default Open drain
Active-Low output. This pin will be a logic
LOW
when the temperature
exceeds its limit.
VOLT_FAULT#
Active-Low output. This pin will be a logic
LOW
when the voltage exceeds
its limit.
13
VREF
AOUT
Reference Voltage. 2.304v
Serial Bus Control Pin
Pin No.
8
7
Pin Name
SDATA
SCLK
Type
IN
ts
/OD
12
IN
t s
Description
Serial Bus data.
Serial Bus clock.
3
V0.25P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
