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0-273-141-043 Datasheet(PDF) 4 Page - List of Unclassifed Manufacturers

Part No. 0-273-141-043
Description  Digital, triaxial acceleration sensor
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Maker  ETC2 [List of Unclassifed Manufacturers]
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Data sheet
BMA150
Triaxial, digital acceleration sensor
Bosch Sensortec
Rev. 1.5
Page 4
30 May 2008
© Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such
as copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany.
Note: Specifications within this document are subject to change without notice.
4. DIGITAL INTERFACE............................................................................................................................ 25
4.1 SPI..................................................................................................................................................... 25
4.1.1 Four-wire SPI interface .............................................................................................................. 25
4.1.2 Three-wire SPI interface ............................................................................................................ 29
4.2 I²C INTERFACE .................................................................................................................................... 32
4.2.1 I²C protocol:................................................................................................................................ 36
5. PACKAGE.............................................................................................................................................. 38
5.1 OUTLINE DIMENSIONS .......................................................................................................................... 38
5.2 AXES ORIENTATION ............................................................................................................................. 39
5.3 LANDING PATTERN RECOMMENDATIONS ............................................................................................... 40
5.4 MOISTURE SENSITIVITY LEVEL AND SOLDERING..................................................................................... 41
5.5 ROHS COMPLIANCY ............................................................................................................................ 41
5.6 NOTE ON INTERNAL PACKAGE STRUCTURE ........................................................................................... 41
6. PIN-OUT OUT AND CONNECTION DIAGRAMS ................................................................................. 42
7. OPERATION MODES ............................................................................................................................ 45
7.1 NORMAL OPERATIONAL MODE.............................................................................................................. 45
7.2 SLEEP MODE....................................................................................................................................... 45
7.3 WAKE-UP MODE .................................................................................................................................. 45
8. DATA CONVERSION ............................................................................................................................ 50
8.1 ACCELERATION DATA .......................................................................................................................... 50
8.2 TEMPERATURE MEASUREMENT ............................................................................................................ 50
9. INTERNAL LOGIC FUNCTIONS........................................................................................................... 51
9.1 FREEFALL LOGIC................................................................................................................................. 51
9.2 HIGH-G LOGIC ..................................................................................................................................... 51
9.3 ANY MOTION DETECTION...................................................................................................................... 52
9.4 ALERT MODE ...................................................................................................................................... 52
10. LEGAL DISCLAIMER.......................................................................................................................... 53
10.1 ENGINEERING SAMPLES..................................................................................................................... 53
10.2 PRODUCT USE................................................................................................................................... 53
10.3 APPLICATION EXAMPLES AND HINTS ................................................................................................... 53
11. DOCUMENT HISTORY AND MODIFICATION ................................................................................... 54




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