TMP75C

www.ti.com

SBOS707B – APRIL 2014 – REVISED AUGUST 2014

Figure 14. Temperature Register (pointer = 0h) [reset = 0000h]

15

14

13

12

11

10

9

8

T11

T10

T9

T8

T7

T6

T5

T4

R-00h

7

6

5

4

3

2

1

0

T3

T2

T1

T0

Reserved

R-0h

R-0h

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 5. Temperature Register Description

Name

Description

T11 to T4

The 8 MSBs of the temperature result (resolution of 1°C)

T3 to T0

The 4 LSBs of the temperature result (resolution of 0.0625°C)

Figure 15. Configuration Register (pointer = 1h) [reset = 0000h]

15

14

13

12

11

10

9

8

Reserved

OS

FQ

POL

TM

SD

R/W-0h

R/W-0h

R/W-0h

R/W-0h

R/W-0h

R/W-0h

7

6

5

4

3

2

1

0

Reserved

R-00h

LEGEND: R/W = Read/Write; R = Read only; -n = value after reset

Table 6. Configuration Register Description

Name

Description

Reserved

Reserved bits

Write 0 to these bits on configuration register update.

OS

One-shot control

SD = 0 and OS = 0: Continuous conversion mode (default)

SD = 0 and OS = 1: One-shot mode; the device is in shutdown mode but writing any value to the one-shot register

initiates a conversion. The device returns to shutdown mode at the end of the conversion.

SD = 1 and OS = x: The device is in shutdown mode and the status of the OS bit has no effect. Writing to the one-

shot register does not start a conversion.

FQ

Fault queue to trigger the ALERT pin

FQ = 0h: 1 fault (default)

FQ = 1h: 2 faults

FQ = 2h: 4 faults

FQ = 3h: 6 faults

POL

ALERT polarity control

POL = 0: ALERT is active low (default)

POL = 1: ALERT is active high

TM

ALERT thermostat mode control

TM = 0: ALERT is in comparator mode (default)

TM = 1: ALERT is in interrupt mode

SD

Shutdown control bit

SD = 0: Device is in continuous conversion mode (default)

SD = 1: Device is in shutdown mode

Copyright © 2014, Texas Instruments Incorporated

Submit Documentation Feedback

17

Product Folder Links: TMP75C