DS75LVU+T&R【PDF 8/13 页】IC SENSOR TEMP DIGITAL 8MSOP

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Sheet目录40

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DS75LV: Digital Thermometer and Thermostat

8 of 13

Table 3. Configuration Register Bit Descriptions

BIT NAME

FUNCTIONAL DESCRIPTION

Reserved

Power-up state = 0

The master can write to this bit, but it will always read out as a 0.

Conversion Resolution Bit 1

Power-up state = 0

Sets conversion resolution (see Table 4)

Conversion Resolution Bit 0

Power-up state = 0

Sets conversion resolution (see Table 4)

Thermostat Fault Tolerance Bit 1

Power-up state = 0

Sets the thermostat fault tolerance (see Table 5).

Thermostat Fault Tolerance Bit 0

Power-up state = 0

Sets the thermostat fault tolerance (see Table 5).

POL

Thermostat Output (O.S.) Polarity

Power-up state = 0

POL = 0 O.S. is active low.

POL = 1 O.S. is active high.

Thermostat Operating Mode

Power-up state = 0

TM = 0 Comparator mode.

TM = 1 Interrupt mode.

See the OPERATIONThermostat section for a detailed description of

these modes.

Shutdown

Power-up state = 0

SD = 0 Active conversion and thermostat operation.

SD = 1 Shutdown mode.

See the SHUTDOWN MODE section for a detailed description of this

mode.

Table 4. Resolution Configuration

THERMOMETER

RESOLUTION

MAX CONVERSION

TIME

9-bit

25ms

10-bit

50ms

11-bit

100ms

12-bit

200ms

Table 5. Fault Tolerance Configuration

CONSECUTIVE OUT-OF-LIMITS

CONVERSIONS TO TRIGGER O.S.

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