BMA250 Bosch Sensortec, BMA250 Datasheet - Page 39

• Manufacturer Part Number: BMA250
• Description: 3-AXIS ACCELEROMETER DIGITAL I/F
• Manufacturer: Bosch Sensortec
• Series: -r

Specifications of BMA250

• Featured Product: BMA250 - Digital, Triaxial Acceleration Sensor
• Axis: X, Y, Z
• Acceleration Range: ±2g, 4g, 8g, 16g
• Sensitivity: 256LSB/g, 128LSB/g, 64LSB/g, 16LSB/g
• Voltage - Supply: 1.62 V ~ 3.6 V
• Output Type: I²C™, SPI™
• Bandwidth: 8Hz ~ 1kHz
• Interface: I²C, SPI
• Mounting Type: Surface Mount
• Package / Case: 12-VQFN
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With: 828-1024 - BMA250 DAUGHTERCARD FOR DEV KIT
• Other names: 828-1023-2

Register (0x07) contains the MSB part of acceleration data for the z-axis.
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).
5.6 Status registers
Register (0x09) contains the states of several interrupts.
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.
Table 29: MSB part of z-axis acceleration, register (0x07)
Table 30: Temperature data, register (0x08)
Table 31: Interrupt status, register (0x09)
(0x07) Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 7
Temp <7>
(0x09) Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit 6
Temp <6>
Name
acc_z_msb <9>
acc_z_msb <8>
acc_z_msb <7>
acc_z_msb <6>
acc_z_msb <5>
acc_z_msb <4>
acc_z_msb <3>
acc_z_msb <2>
Name
flat_int
orient_int
s_tap_int
d_tap_int
- reserved -
slope_int
high_int
low_int
Bit 5
Temp <5>
Page 39 / not for publishing
Bit 4
Temp <4>
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
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
Data sheet
BMA250
Bit 3
Temp <3>
Bit 2
Temp <2>
Bit 1
Temp <1>
Bosch Sensortec
03 March 2011
Bit 0
Temp <0>