Feature Integration Technology Inc.
Fintek
F75373
Monitoring Items and Fan Speed Control
Pin No. Pin Name
Type
INt
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.
1
2
FANIN1
GPIO0
INts/OD8
INt
FANIN2
PWMOUT1
O12
3
4
ADDR_TRAP INtsd100k
Address power on trapping pin. Internal pull down100k ohm
GPIO1
PWMOUT2
VIN3
INts/OD12 (Default) General purpose I/O pin. Default Open drain
O12
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.
10
11
12
14
15
AIN
AIN
AIN
AIN
AIN
VIN2
VIN1
VT2
VT1
Alert Signals and Others
Pin No. Pin Name
Type
Description
(Default) General purpose I/O function. Default pure open drain
System management interrupt (Pure Open Drain)
5
GPIO2
SMI#
INts/OD16
OD16
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.
FAN_FAULT#
GPIO3
OD16
6
INts/OD8
OD8
OVT#
Active-Low output. This pin will be a logic LOW when the voltage exceeds
its limit.
VOLT_FAULT# OD8
Reference Voltage. 2.304v
13
VREF
AOUT
Serial Bus Control Pin
Pin No. Pin Name Type
Description
8
7
SDATA
SCLK
INts/OD12 Serial Bus data.
INts
Serial Bus clock.
3
V0.25P
FINTEK [ FEATURE INTEGRATION TECHNOLOGY INC. ]
