ILPS28QSW datasheet(48/52 Pages) STMICROELECTRONICS

48 / 52 page

Contents

Block diagrams ....................................................................3

Pin description ....................................................................4

Mechanical and electrical specifications ...........................................5

3.1

Mechanical characteristics ....................................................... 5

3.2

Electrical characteristics......................................................... 7

Communication interface characteristics...........................................9

4.1

I²C - inter-IC control interface .................................................... 9

4.2

Absolute maximum ratings...................................................... 10

Functionality .....................................................................11

5.1

Sensing element .............................................................. 11

5.2

IC interface................................................................... 11

5.3

Factory calibration............................................................. 11

5.4

Device structure .............................................................. 12

5.5

Interpreting pressure readings................................................... 13

5.6

Interpreting temperature readings................................................ 13

FIFO..............................................................................14

6.1

Bypass mode ................................................................. 15

6.2

FIFO mode................................................................... 16

6.3

Continuous (dynamic-stream) mode.............................................. 17

6.4

Bypass-to-FIFO mode ......................................................... 18

6.5

Bypass-to-continuous (dynamic-stream) mode ..................................... 19

6.6

Continuous (dynamic-stream)-to-FIFO mode ...................................... 20

6.7

Retrieving data from FIFO ...................................................... 20

Application hints .................................................................21

7.1

Analog hub (AH) / Qvar functions ................................................ 22

7.2

Power-saving tip for the pressure sensor, disabling the analog hub (AH) / Qvar feature ... 22

7.3

Soldering information .......................................................... 23

Digital interfaces .................................................................24

8.1

Serial interfaces............................................................... 24

8.2

I²C serial interface ............................................................. 24

8.2.1

I²C operation ........................................................... 24

8.3

MIPI I3CSM slave interface...................................................... 26

8.3.1

MIPI I3CSM CCC supported commands ...................................... 26

8.3.2

Overview of anti-spike filter management ..................................... 27

ILPS28QSW

Contents

DS13905 - Rev 1

page 48/52

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