BMA222 Bosch Sensortec, BMA222 Datasheet - Page 58

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BMA222

Manufacturer Part Number
BMA222
Description
3-AXIS ACCELEROMETER DIGITAL SMD
Manufacturer
Bosch Sensortec
Datasheets

Specifications of BMA222

Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
828-1025-2

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6.2 Inter-Integrated Circuit (I²C)
The I²C bus uses SCL (= SCx pin, serial clock) and SDA (= SDx pin, serial data input and
output) signal lines. Both lines are connected to V
are pulled high when the bus is free.
The I²C interface of the BMA222 is compatible with the I²C Specification UM10204 Rev. 03 (19
June 2007), available at http://www.nxp.com. The BMA222 supports I²C standard mode and fast
mode, only 7-bit address mode is supported. For V
output levels are slightly relaxed as described in the Parameter Specification (table 1).
The default I²C address of the device is 0001000b (0x08). It is used if the SDO pin is pulled to
´GND´ or left open (floating). The alternative address 0001001b (0x09) is selected by pulling the
SDO pin to ´V
The timing specification for I²C of the BMA222 is given in table 74:
Table 74: I²C timings
Rev. 1.0
© 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.
Parameter
Clock Frequency
SCL Low Period
SCL High Period
SDA Setup Time
SDA Hold Time
Setup Time for a
repeated Start Condition
Hold Time for a Start
Condition
Setup Time for a Stop
Condition
Time
Transmission can start
before
DDIO
a
´.
new
Symbol
f
t
t
t
t
t
t
t
t
SCL
LOW
HIGH
SUDAT
HDDAT
SUSTA
HDSTA
SUSTO
BUF
Condition
Data sheet
BMA222
Page 58
DDIO
DDIO
externally via pull-up resistors so that they
Min
1.3
0.6
0.1
0.0
0.6
0.6
0.6
1.3
= 1.2V to 1.8V the guaranteed voltage
Max
400
Units
kHz
s
Bosch Sensortec
07 March 2011

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