Data Sheet

Final Datasheet
BME280 Environmental sensor
Page 36
BST-BME280-DS001-10 | Revision 1.1 | May 2015 Bosch Sensortec
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Note: Specifications within this document are subject to change without notice.
CSB
SCK
T_setup_csb
T_low_sck
T_high_sck
T_hold_csb
SDI
T_setup_sdi
T_hold_sdi
SDO
T_delay_sdo
Figure 15: SPI timing diagram
Table 34: SPI timings
Parameter
Symbol
Condition
Min
Typ
Max
Unit
SPI clock input frequency
F_spi
0
10
MHz
SCK low pulse
T_low_sck
20
ns
SCK high pulse
T_high_sck
20
ns
SDI setup time
T_setup_sdi
20
ns
SDI hold time
T_hold_sdi
20
ns
SDO output delay
T_delay_sdo
25 pF load, V
DDIO
=1.6 V min
30
ns
SDO output delay
T_delay_sdo
25 pF load, V
DDIO
=1.2 V min
40
ns
CSB setup time
T_setup_csb
20
ns
CSB hold time
T_hold_csb
20
ns