BME280 datasheet(6/60 Pages) BOSCH

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Bosch Sensortec | BME280 Data sheet

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Modifications reserved | Data subject to change without notice

Document number: BST-BME280-DS001-23 Revision_1.23_012022

7. Pin-out and connection diagram .................................................................................................. 38

7.1 Pin-out .....................................................................................................................................38

7.2 Connection diagram I2C...........................................................................................................39

7.3 Connection diagram 4-wire SPI...............................................................................................40

7.4 Connection diagram 3-wire SPI...............................................................................................41

7.5 Package dimensions ...............................................................................................................42

7.6 Landing pattern recommendation............................................................................................43

7.7 Marking....................................................................................................................................44

7.7.1 Mass production devices ........................................................................................ 44

7.7.2 Engineering samples .............................................................................................. 44

7.8 Soldering guidelines and reconditioning recommendations....................................................45

7.9 Reconditioning Procedure .......................................................................................................46

7.10 Tape and reel specification......................................................................................................46

7.10.1 Dimensions ............................................................................................................. 46

7.10.2 Orientation within the reel....................................................................................... 47

7.11 Mounting and assembly recommendations.............................................................................48

7.12 Environmental safety ...............................................................................................................48

7.12.1 RoHS ...................................................................................................................... 48

7.12.2 Halogen content...................................................................................................... 48

7.12.3 Internal package structure ...................................................................................... 48

8. Appendix A: Alternative compensation formulas....................................................................... 49

8.1 Compensation formulas in double precision floating point......................................................49

8.2 Pressure compensation in 32 bit fixed point............................................................................50

9. Appendix B: Measurement time and current calculation........................................................... 51

9.1 Measurement time...................................................................................................................51

9.2 Measurement rate in forced mode ..........................................................................................51

9.3 Measurement rate in normal mode..........................................................................................51

9.4 Response time using IIR filter..................................................................................................52

BME280 Datasheet(PDF) 6 Page - Bosch Sensortec GmbH