ILPS22QSTR datasheet(56/57 Pages) STMICROELECTRONICS

56 / 57 page

List of figures

Figure 1.

Device architecture block diagram....................................................... 3

Figure 2.

Digital logic ...................................................................... 3

Figure 3.

Pin connections (bottom view) ......................................................... 4

Figure 4.

SPI slave timing diagram ............................................................. 9

Figure 5.

I²C slave timing diagram ............................................................ 10

Figure 6.

Pressure readings................................................................. 13

Figure 7.

Temperature readings .............................................................. 14

Figure 8.

Bypass mode .................................................................... 16

Figure 9.

FIFO mode ..................................................................... 17

Figure 10.

Continuous (dynamic-stream) mode .................................................... 18

Figure 11.

Bypass-to-FIFO mode .............................................................. 19

Figure 12.

Bypass-to-continuous (dynamic-stream) mode ............................................. 20

Figure 13.

Continuous (dynamic-stream)-to-FIFO mode .............................................. 21

Figure 14.

ILPS22QS electrical connections (top view) ............................................... 22

Figure 15.

AH (analog hub) / Qvar external connections to pin 5, pin 7 .................................... 22

Figure 16.

ILPS22QS power-off sequence........................................................ 23

Figure 17.

SPI read protocol ................................................................. 27

Figure 18.

Multiple byte SPI read protocol (2-byte example)............................................ 27

Figure 19.

SPI write protocol ................................................................. 28

Figure 20.

Multiple byte SPI write protocol (2-byte example) ........................................... 28

Figure 21.

SPI read protocol in 3-wire mode ...................................................... 29

Figure 22.

“Threshold-based” interrupt event ...................................................... 34

Figure 23.

One-point calibration ............................................................... 43

Figure 24.

HLGA-10L (2.0 x 2.0 x 0.73 mm typ.) package outline and mechanical dimensions .................... 48

Figure 25.

Carrier tape information for HLGA-10L package ............................................ 49

Figure 26.

HLGA-10L package orientation in carrier tape.............................................. 49

Figure 27.

Reel information for carrier tape of HLGA-10L package ....................................... 50

ILPS22QS

List of figures

DS13431 - Rev 3

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