STTS751 datasheet(19/36 Pages) STMICROELECTRONICS

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STTS751

STTS751 register summary

Doc ID 16483 Rev 5

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Note:

The user must program the conversion rate and resolution bits (Tres1:Tres0 in the

configuration register, address 03h) to be consistent with this table. For a sampling rate of

32 conversions per second, the maximum resolution is 10 bits. For 16 conversions per

second, the maximum is 11 bits.

4.8

One-shot register

The STTS751 can be configured to perform a single temperature conversion on demand.

When the device is placed in standby mode (by setting RUN/STOP to 1 in the configuration

will set the busy bit while the conversion is in progress. The conversion is complete when

the busy bit is cleared. The STTS751 returns to standby mode upon completion of the

conversion.

The one-shot register is write-only and is located at address 0Fh. The value written to

invoke the one-shot conversion is a don't care. The device responds only to the write at

address 0Fh and ignores the value written.

Note:

Writes to the one-shot register will be ignored when the STTS751 is in continuous

conversion mode (ie. when RUN/STOP=0).

Table 18.

Conversion rates

CONV[3:0]

(hex)

Conversions per second

Typical current (µA)

Comment

00.0625

0.125

20.25

30.5

9, 10, or 11-bit resolutions only

125

9 or 10-bit resolutions only

A-F

reserved

Table 19.

One-shot register

ADDR

(hex)

R/W

Power-up

default (hex)

One shot

n/a

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