bmp280 datasheet

Bosch
Sensortec | BMP280 Data sheet
34 |
48
Modifications reserved | Data subject to change without notice
Document number: BST-BMP280-DS001-23 Revision_1.23_11202
0
6. Pin-out and connection diagram
6.1 Pin-out
TOP VIEW
(
pads not visible
)
8
V
DD
7
GND
6
V
DDIO
5
SDO
1
GND
2
CSB
3
SDI
4
SCK
BOTTOM VIEW
(pads visible)
8
V
DD
7
GND
6
V
DDIO
5
SDO
1
GND
2
CSB
3
SDI
4
SCK
Vent hole
Pin 1
marker
Figure 14: Pin-out top and bottom view
Table 29: Pin description
Pin
Name
I/O Type
Description
Connect to
SPI 4W
SPI 3W
I²C
1
GND
Supply
Ground
GND
2 CSB In Chip select CSB CSB V
DDIO
3
SDI
In/Out
Serial data input
SDI
SDI/SDO
SDA
4
SCK
In
Serial clock input
SCK
SCK
SCL
5
SDO
In/Out
Serial data output
SDO
DNC
GND for
default
address
6
V
DDIO
Supply
Digital interface supply
V
DDIO
7
GND
Supply
Ground
GND
8
V
DD
Supply
Analog supply
V
DD