3-AXIS ACCELEROMETER DIGITAL I/F

BMA250

Manufacturer Part NumberBMA250
Description3-AXIS ACCELEROMETER DIGITAL I/F
ManufacturerBosch Sensortec
Series-
BMA250 datasheets
 


Specifications of BMA250

Featured ProductBMA250 - Digital, Triaxial Acceleration SensorAxisX, Y, Z
Acceleration Range±2g, 4g, 8g, 16gSensitivity256LSB/g, 128LSB/g, 64LSB/g, 16LSB/g
Voltage - Supply1.62 V ~ 3.6 VOutput TypeI²C™, SPI™
Bandwidth8Hz ~ 1kHzInterfaceI²C, SPI
Mounting TypeSurface MountPackage / Case12-VQFN
Lead Free Status / Rohs StatusLead free / RoHS CompliantFor Use With828-1024 - BMA250 DAUGHTERCARD FOR DEV KIT
Other names828-1023-2  
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Page 39/74

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Register (0x07) contains the MSB part of acceleration data for the z-axis.
Table 29: MSB part of z-axis acceleration, register (0x07)
(0x07) Bit
Name
Bit 7
acc_z_msb <9>
Bit 6
acc_z_msb <8>
Bit 5
acc_z_msb <7>
Bit 4
acc_z_msb <6>
Bit 3
acc_z_msb <5>
Bit 2
acc_z_msb <4>
Bit 1
acc_z_msb <3>
Bit 0
acc_z_msb <2>
5.5 Temperature data
Register (0x08) temp contains temperature data in two’s complement representation. Center
temperature = 24 °C  i.e. (0x08) temp = 00000000b
1 LSB increment of temperature sensor is 0.5 °C (0.9 °F).
Table 30: Temperature data, register (0x08)
Bit 7
Bit 6
Bit 5
Temp <7>
Temp <6>
Temp <5>
5.6 Status registers
Register (0x09) contains the states of several interrupts.
Table 31: Interrupt status, register (0x09)
(0x09) Bit
Name
Bit 7
flat_int
Bit 6
orient_int
Bit 5
s_tap_int
Bit 4
d_tap_int
Bit 3
- reserved -
Bit 2
slope_int
Bit 1
high_int
Bit 0
low_int
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.
BMA250
Data sheet
Description
Bit 9 of z-axis acceleration data = z MSB
Bit 8 of z-axis acceleration data
Bit 7 of z-axis acceleration data
Bit 6 of z-axis acceleration data
Bit 5 of z-axis acceleration data
Bit 4 of z-axis acceleration data
Bit 3 of z-axis acceleration data
Bit 2 of z-axis acceleration data
Bit 4
Bit 3
Bit 2
Temp <4>
Temp <3>
Temp <2>
Description
Flat interrupt status
Orientation interrupt status
Single tap interrupt status
Double tap interrupt status
reserved
Slope interrupt status
High-g interrupt status
Low-g interrupt status
Page 39 / not for publishing
Bosch Sensortec
Bit 1
Bit 0
Temp <1>
Temp <0>
03 March 2011