BMA020 Bosch Sensortec, BMA020 Datasheet - Page 26

• Manufacturer Part Number: BMA020
• Description: 3-AXIS ACCELEROMETER DIGITAL I/F
• Manufacturer: Bosch Sensortec

Specifications of BMA020

• Axis: X, Y, Z
• Acceleration Range: ± 2g, 4g, 8g
• Sensitivity: 256LSB/g, 128LSB/g, 64LSB/g
• Voltage - Supply: 2 V ~ 3.6 V
• Output Type: Digital
• Bandwidth: 3kHz
• Interface: I²C, SPI
• Mounting Type: Surface Mount
• Package / Case: 12-LGA
• For Use With: 828-1014 - BMA020 TRIBOX DEMO BOARD W/USB828-1008 - BMA020 DAUGHTERCARD FOR DEV KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 828-1000-2

Figure 6: When write is required, sequences of 2 bytes are necessary: 1 control byte to define
the address to be written and the data byte.
Figure 7: When read access is required, the sequence consists of 1 control byte to define first
address to be read followed by data bytes. Addresses are automatically incremented as long as
CSB stays active low.
Rev. 1.2
© 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.
CSB
CSB
Start
Start
=
0
=
0
RW
RW
0
1
0
0
0
0
Register adress (16h)
Register adress (02h)
Control byte
Control byte
1
0
0
0
0
1
1
1
0
0
X
X
Digital, triaxial acceleration sensor
X
X
Data register - adress 1Eh
Data register - adress 02h
X
X
Data byte
Data byte
X
X
X
X
X
X
Data sheet
BMA020
Page 26
X
X
X
X
RW
X
0
X
0
Data register - adress 03h
0
X
Register adress (0Bh)
Control byte
Data byte
X
0
X
1
X
0
X
1
X
1
X
X
X
X
Data register - adress 04h
Data register - adress 02h
Bosch Sensortec
X
X
Data byte
Data byte
X
X
30 May 2008
X
X
X
X
X
X
X
X
Stop
CSB
Stop
CSB
=
1
=
1