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BMP581 数据表(PDF) 46 Page - Bosch Sensortec GmbH

部件名 BMP581
功能描述  Barometric Pressure Sensor
PDF  75 Pages
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制造商  BOSCH [Bosch Sensortec GmbH]
网页  https://www.bosch-sensortec.com
标志 BOSCH - Bosch Sensortec GmbH

BMP581 数据表(HTML) 46 Page - Bosch Sensortec GmbH

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Bosch Sensortec | BST-BMP581-DS004-11
46 | 75
© Bosch Sensortec GmbH 2023 | All rights reserved, also regarding any disposal, exploitation, reproduction, editing, distribution,
Document number: BST-BMP581-DS004-11
as well as in the event of applications for industrial property rights
6 Pin out and connection diagrams
6.1Pin Out
Figure 22 shows the pin-out of the device from top and bottom view, respectively. Table 28 shows the related pin descriptions.
Figure 23: Pin out top and bottom view
Table 28: Pin description
Pin
Name
I/O Type
Description
Connect to
SPI 4W
SPI 3W
1
VDDIO
Supply
Digital interface supply
VDDIO
2
SCK
In
Serial clock input
SCK
SCK
3
VSS
Supply
Ground
GND
4
SDI
In/Out
Serial data input
SDI
SDI/SDO
5
SDO
In/Out
Serial data output
SDO
DNC
6
CSB
In
Chip select
CSB
CSB
7
INT
Out
INT output
host INT input, GNDa or
DNC
8
VSS
Supply
Ground
GND
9
VSS
Supply
Ground
GND
10
VDD
Supply
Analog supply
VDD
a. GND connection is allowed, as long as the IRQ pin is not activated
6.2Connection Diagrams
The sensor (including the ASIC) should be used in one of the following four configurations on application level. In all
connection scenarios:
all VSS pins must be connected to GND.
if the INT pin is not used, it is recommended to be connect it to GND, rather than leaving it floating. In the case of
GND connection, the interrupt pin must be disabled by keeping INT_CONFIG.int_en disabled. . If the INT pin must
be unconnected in the application, it is recommended to use the following settings for INT_CONFIG:
INT_CONFIG.int_en = 1
INT_CONFIG.int_od = 0
INT_CONFIG.pad_int_drv =



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