F75334
General Description

The F75334DG is a series of hardware monitoring & intelligent fan controlling IC. The F75334DG integrated Hardware Monitor, PWM Loading Gauge, VID controller and GPIO functions inside. Part of the Hardware Monitor is for system protection including 6 channels voltage monitor, 4 sets dual current sources temperature sensor, 3 sets fan speed sensor and controller. Besides, F75334DG supports AMDSI interface for AMD series CPU temperature reading & Intel PECI/SST interface. PWM Loading Gauge is sensing the PWM signal change of duty cycle to react related functions for over/under-clocking application. VID controller is the dynamic voltage ID controller chip to provide the advanced CPU voltage programming when over/under clocking.  The dynamic VID spec. is for new generation Intel/AMD CPU and also compatible to VRM9.0/VRM10.0/VRM10.X /VRM11.0 spec. Additionally, the F75334DG provides easy voltage sensor input/output (VSI/VSO) function to sense Vcore voltage, then output the offset voltage for over/under voltage change use.  Otherwise, F75334DG provides 21 GPIO pins for flexible application.

The F75334DG supports three main features for system protection, system over/under-clocking and dynamic voltage ID control. The F75334DG can easily save the total cost and improve system performance. The F75334DG supports 2 wire I2C interface, packaged in 48-pin LQFP green package and powered by 3.3V.

  • FEATURES
  • PACKAGE
  • ATTACHMENTS
  • General Functions

-  Support 6 channels voltage monitor

-  Provide 4 temperature sensors

-  Support 3 sets fan control

-  Loading gauge for device loading sensing

-  Provide VID controller with OTF

-  21 GPIO pins for flexible application

-  Support AMDSI & Intel PECI/SST interface for temperature reading.

-  Easy voltage sensor I/O (VSI/VSO) for easy over/under voltage change use.

-  2 wire I2C interface

-  3VCC operation and packaged in 48-LQFP green package

 

  •  Hardware Monitor

-  Voltage Monitor      

                       Provide 2.048V VREF

                       Support 6 channels voltage monitor(VCC3 V + VSB3V + 4 Externals)

                       Voltage monitor resolution is 8mv per LSB

                       Support 8bits high limit and low limit for each voltage channel

-  Temperature Monitor

Support 4 temperature sensor (1 local + 3 remote)

Remote sensors support 2 types sensor (thermistor and transistor/thermal diode(Default))

±1°C accuracy on remote channel (60°C ~ 100°C)

±3°C accuracy on local channel (60°C ~ 100°C)

Support temperature range from -25°C ~ 145°C

Support high limit for each temperature sensor

Support OVT( over temperature) limit for each temperature sensor

Each temperature with hysteresis for high limit and OVT limit ( 0°C~15°C)

-  Fan Controller and Monitor

Support 3 sets fan speed sensor and fan control

50K fan speed sampling rate

Support Intel 4-Fan control mode 

(1. Auto RPM Mode 2. Auto Duty Mode(Default) or manual duty 3. Manual RPM)

 

  •  Loading Gauge

-  Provide 1 PWMIN detection pins

-  Duty cycle reading resolution is 16bits

-  Support 4 duty limit ( 5 segments), and the resolution is 12 bits

-  Support 4 hysteresis registers for each limit (± offset)

-  Support 3 TURBO# output signals to control CLK Gen.

-  Support 1 STOP# output signal to chipset ( Timing flexible)

 

  •  VID Controller

-  Support VRM9.0, VRM10.0, VRM10 extend and VRM11.0

-  Support 5 offset registers to mapping 5 different loading range

-  Support Intel and AMD CPU

-  Easy voltage sensor I/O (VSI/VSO) for easy over/under voltage change use.

 

  •  GPIO

-  Support 21 GPIO pins

-  Only support level mode GP output control

-  GPIO pin status can be read by registers

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