stcn75 STMicroelectronics, stcn75 Datasheet - Page 12

• Manufacturer Part Number: stcn75
• Description: Digital Temperature Sensor And Thermal Watchdog
• Manufacturer: STMicroelectronics

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Comparator mode
In Comparator mode, each time a temperature-to-digital (T-to-D) conversion occurs, the new
digital temperature is compared to the value stored in the T
tolerance number of consecutive temperature measurements are greater than the value
stored in the T
For example, if the FT1 and FT0 Bits are equal to “10” (fault tolerance = 4), four consecutive
temperature measurements must exceed T
OS/INT output is active, it will remain active until the first time the measured temperature
drops below the temperature stored in the T
inactive state.
Putting the device into Shutdown mode does not clear OS/INT in Comparator mode.
Interrupt mode
In Interrupt mode, the OS/INT output becomes active when the measured temperature
exceeds the T
bits (FT1, FT0) value in the Configuration register. Once activated, the OS/INT can only be
cleared by reading from any register (temperature, configuration, T
device. Once the OS/INT has been deactivated, it will only be reactivated when the
measured temperature falls below the T
the FT value. This mode is better suited for interrupt driven microprocessor based systems.
OS
OS
value a consecutive number of times as determined by the Fault Tolerance
register, the OS/INT output will be asserted.
HYS
OS
HYS
value a consecutive number of times equal to
to activate the OS/INT output. Once the
register, whereupon it will reset to its
OS
and T
OS
HYS
, or T
registers. If a fault
HYS
) on the