DS75LV Ver la hoja de datos (PDF) - Maxim Integrated

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DS75LV

Digital Thermometer and Thermostat

Maxim Integrated 

DS75LV

Digital Thermometer and Thermostat

Table 2. Configuration Register Bit Descriptions

BIT NAME

0

Reserved

R1

Conversion Resolution Bit 1

R0

Conversion Resolution Bit 0

F1

Thermostat Fault Tolerance Bit 1

F0

Thermostat Fault Tolerance Bit 0

POL

Thermostat Output (OS) Polarity

FUNCTION

Power-up state = 0

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

Power-up state = 0

Sets conversion resolution (see Table 3)

Power-up state = 0

Sets conversion resolution (see Table 3)

Power-up state = 0

Sets the thermostat fault tolerance (see Table 4).

Power-up state = 0

Sets the thermostat fault tolerance (see Table 4).

Power-up state = 0

POL = 0 — OS is active low.

POL = 1 — OS is active high.

TM

Thermostat Operating Mode

Power-up state = 0

TM = 0 — Comparator mode

TM = 1 — Interrupt mode

See the Thermostat section for a detailed description of these modes.

SD

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 3. Resolution Configuration

R1 R0

0

0

0

1

1

0

1

1

THERMOMETER

RESOLUTION

9-bit

10-bit

11-bit

12-bit

MAX CONVERSION

TIME (ms)

25

50

100

200

Table 4. Fault Tolerance Configuration

F1

F0

0

0

0

1

1

0

1

1

CONSECUTIVE OUT-OF-LIMITS

CONVERSIONS TO TRIGGER OS

1

2

4

6

Table 5. Register Pointer Definition

REGISTER

Temperature

Configuration

THYST

TOS

P1

P0

0

0

0

1

1

0

1

1

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