BMA020 Bosch Sensortec, BMA020 Datasheet - Page 35

3-AXIS ACCELEROMETER DIGITAL I/F

BMA020

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

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

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
BMA020
Manufacturer:
BOSCH/博世
Quantity:
20 000
Company:
Part Number:
BMA020
Quantity:
80
Company:
Part Number:
BMA020
Quantity:
77
To be able to access registers in read mode, first address has to be send in write mode. Then a
stop and a start conditions are issued and data bytes are transferred with automatic address
increment:
Figure 16: I²C multiple read protocol. Address register is first written to BMA020, the RW=0
(lowest acceleration data located at address 02h). I²C transfer is stopped and restarted with
RW=1, address is automatically incremented and the 6 bytes can be sequentially read out.
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.
Start
Start
S
S
0
0
1
1
Slave Adress
Slave Adress
1
1
1
1
0
0
0
0
0
0
RW ACK
RW ACK
0
1
Digital, triaxial acceleration sensor
X
X
X
X
X
X
X
0
Register data - adress 02h
Register data - adress 04h
Register data - adress 06h
0
X
X
X
Data sheet
BMA020
Register adress (02h)
Page 35
Control byte
Data byte
Data byte
Data byte
0
X
X
X
0
X
X
X
X
X
X
0
X
X
X
1
X
X
X
0
ACK
ACK
ACK
ACK
Stop
P
X
X
X
X
X
X
Register data - adress 03h
Register data - adress 05h
Register data - adress 07h
X
X
X
Data byte
Data byte
Data byte
X
X
X
Bosch Sensortec
X
X
X
X
X
X
30 May 2008
X
X
X
X
X
X
ACK
ACK
NACK
Stop
P

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