DS75LX: Digital Thermometer and Thermostat with Extended Addressing
Figure 3. O.S. Output Operation Example
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Configuration Register
The configuration register allows the user to program various DS75LX options such as conversion resolution,
thermostat fault tolerance, thermostat polarity, thermostat operating mode, and shutdown mode. The configuration
register is arranged as shown in Figure 4 and detailed descriptions of each bit are provided in Table 2. The user
has read/write access to all bits in the configuration register except the MSb, which is a reserved read-only bit. The
entire register is volatile, and thus powers up in its default state.
 
Figure 4. Configuration Register
 
 
MSb
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
LSb
0
R1
R0
F1
F0
POL
TM
SD
 
In this example the
DS75LX is configured to
have a fault tolerance of 2.
O.S. Output - Comparator Mode
Conversions
Inactive
Active
Temperature
T
OS
T
HYST
Inactive
Active
O.S. Output - Interrupt Mode
Assumes an interrupt
clear event
has occurred
 
7 of 13   
 
 
 
 
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