General Description
The F75393 is a temperature sensor IC with ß compensation and alert signal which is specific designed for notebook, graphic cards etc. An 11-bit analog-to-digital converter (ADC) was built inside F75393. The F75393 can monitor two set of temperature which is very important for the system to work stably and properly. This chip provides 1 remote temperature sensor and 1 local temperature sensor. The remote temperature sensor can be performed by CPU thermal transistor or transistor 2N3906. The F75393 also can support new generational 45nm CPU temperature sensing by varied ß of CPU. The users can set up the upper and lower limits (alarm thresholds) of all monitored parameters and this chip can also issue warning messages for system protection when there is something wrong with monitored items.

FEATUREs
✦ Provide 1 on-chip local and 1 remote temperature sensing
✦ ±1 °C accuarcy on remote channel and ±3 °C accuarcy on local channel
   ◇ ±1 °C (+60 °C to +100 °C, remote)  ◇ ±3 °C (+60 °C to +100 °C, local)
✦ Support new generational CPU temperature sensing with ß compensation
✦ Resistor cancelled function
✦ ALERT# output for SMBus alert
✦ THERM# output for over temperature alert or for system shut down
✦ Programmable THERM# limits and THERM# hysteresis
✦ Programmable alert queue
✦ Programmable limited and setting points(alert threshold) for all monitored items
✦ 2 wire SMBus interface and 3VCC operation
✦ 8-MSOP Package – F75393M
✦ 8-SOP Package – F75393S
✦ The F75393 provides SMBus address ID option by resistor selection and they have the following
   SMBus slave address: (Default address is 98h)