ds7505 Maxim Integrated Products, Inc., ds7505 Datasheet - Page 7

• Manufacturer Part Number: ds7505
• Description: High-precision Digital Thermometer And Thermostat
• Manufacturer: Maxim Integrated Products, Inc.

Figure 4. O.S. Output Operation Example
In interrupt mode, the O.S. output first becomes active
when the measured temperature exceeds the T
value a consecutive number of times equal to the FT
value in the configuration register. Once activated, O.S.
can only be cleared by either putting the DS7505 into
shutdown mode or by reading from any register (tem-
perature, configuration, T
Once O.S. has been deactivated, it is only reactivated
IN THIS EXAMPLE, THE DS7505 IS CONFIGURED
TO HAVE A FAULT TOLERANCE OF 2.
O.S. OUTPUT—COMPARATOR MODE
_______________________________________________________________________________________
O.S. OUTPUT—INTERRUPT MODE
Digital Thermometer and Thermostat
OS
, or T
TEMPERATURE
HYST
Interrupt Mode
) on the device.
INACTIVE
INACTIVE
ACTIVE
ACTIVE
T
HYST
T
OS
OS
when the measured temperature falls below the T
value a consecutive number of times equal to the FT
value. Again, O.S can only be cleared by putting the
device into shutdown mode or reading any register.
Thus, this interrupt/clear process is cyclical between
T
T
mode operation with FT = 2 is illustrated in Figure 4.
OS
OS
, clear, T
and T
CONVERSIONS
HYST
HYST
events (i.e, T
ASSUMES A READ
, clear, etc.). Thermostat interrupt
HAS OCCURED
OS
, clear, T
HYST
, clear,
HYST
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