ILPS22QSTR datasheet(4/57 Pages) STMICROELECTRONICS

Part #	ILPS22QSTR

Description	Dual full-scale, 1260 hPa and 4060 hPa, absolute digital output barometer with embedded Qvar electrostatic sensor

PDF	57 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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4 / 57 page

Pin description

Figure 3. Pin connections (bottom view)

RES

SDA/SDI/SDO

AH2/QVAR2

VDD

GND

GND_IO

Table 1. Pin description

Pin number

Name

Function

Vdd_IO

Power supply for I/O pins

SCL

SPC

I²C / MIPI I3CSM serial clock (SCL)

SPI serial port clock (SPC)

RES

Connect to GND

SDA

SDI

SDO

I²C / MIPI I3CSM serial data (SDA)

3-wire SPI serial data input (SDI)

3-wire serial data output (SDO)

AH2/QVAR2

Connect to GND if analog input / Qvar sensing is not needed.

Enables SPI

I²C and MIPI I3CSM / SPI mode selection

(1: SPI idle mode / I²C and MIPI I3CSM communication enabled;

0: SPI communication mode / I²C and MIPI I3CSM disabled)

AH1/QVAR1

Connect to GND if analog input / Qvar sensing is not needed.

GND_IO

0 V supply

GND

0 V supply

VDD

Power supply

ILPS22QS

Pin description

DS13431 - Rev 3

page 4/57

ILPS22QSTR Datasheet(PDF) 4 Page - STMicroelectronics

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