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F75373S Datasheet(PDF) 8 Page - Feature Integration Technology Inc. |
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F75373S Datasheet(HTML) 8 Page - Feature Integration Technology Inc. |
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8 / 49 page  Fintek Feature Integration Technology Inc. V0.25P 3 F75373 Monitoring Items and Fan Speed Control Pin No. Pin Name Type Description 1 FANIN1 INt 0V to +3.3V amplitude fan tachometer input. GPIO0 INts/OD8 (Default) General purpose I/O pin. Default Open drain 2 FANIN2 INt 0V to +3.3V amplitude fan tachometer input. PWMOUT1 O12 Fan speed control pin. 3 ADDR_TRAP INtsd100k Address power on trapping pin. Internal pull down100k ohm GPIO1 INts/OD12 (Default) General purpose I/O pin. Default Open drain 4 PWMOUT2 O12 Fan speed control pin. 10 VIN3 AIN 0V to 2.048V FSR Analog Inputs 11 VIN2 AIN 0V to 2.048V FSR Analog Inputs 12 VIN1 AIN 0V to 2.048V FSR Analog Inputs 14 VT2 AIN Thermistor 2 terminal input 15 VT1 AIN Thermistor 1 terminal input. Alert Signals and Others Pin No. Pin Name Type Description GPIO2 INts/OD16 (Default) General purpose I/O function. Default pure open drain SMI# OD16 System management interrupt (Pure Open Drain) 5 FAN_FAULT# OD16 This pin will be a logic LOW when the fan speed is abnormal. GPIO3 INts/OD8 (Default) General purpose I/O function. Default Open drain OVT# OD8 Active-Low output. This pin will be a logic LOW when the temperature exceeds its limit. 6 VOLT_FAULT# OD8 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. Pin Name Type Description 8 SDATA INts/OD12 Serial Bus data. 7 SCLK INts Serial Bus clock. |
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