BMA250 Bosch Sensortec, BMA250 Datasheet - Page 44

3-AXIS ACCELEROMETER DIGITAL I/F

BMA250

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

Specifications of BMA250

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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

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Registers (0x1C) and (0x1D) are reserved.
Register (0x1E) contains the data source definition for those interrupts with selectable data
source. Default value of each data source selection bit is ´0´.
Register (0x1F) is reserved.
Register (0x20) contains the behavioural configuration (electrical behaviour) of the interrupt
pins. Default value of (0x20) int1_od and (0x20) int2_od is ´0´. Default value of (0x20) int1_lvl
and (0x20) int2_lvl is ´1´.
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 43: Interrupt mapping, register (0x1B)
Table 44: Interrupt data source definition, register (0x1E)
Table 45: Electrical behaviour of interrupt pin, register (0x20)
(0x1B) Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(0x1E) Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(0x20) Bit
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Name
int2_flat
int2_orient
int2_s_tap
int2_d_tap
- reserved -
int2_slope
int2_high
int2_low
Name
- reserved -
- reserved -
int_src_data
int_src_tap
- reserved -
int_src_slope
int_src_high
int_src_low
Name
- reserved -
- reserved -
- reserved -
- reserved -
int2_od
int2_lvl
int1_od
int1_lvl
Description
Description
Description
´1´ (´0´) maps (unmaps) flat interrupt to INT2 pin
´1´ (´0´) maps (unmaps) orientation interrupt to INT2 pin
´1´ (´0´) maps (unmaps) single tap interrupt to INT2 pin
´1´ (´0´) maps (unmaps) double tap interrupt to INT2 pin
reserved
´1´ (´0´) maps (unmaps) slope interrupt to INT2 pin
´1´ (´0´) maps (unmaps) high-g interrupt to INT2 pin
´1´ (´0´) maps (unmaps) low-g interrupt to INT2 pin
reserved
reserved
´1´ (´0´) selects unfiltered (filtered) data for the new data
interrupt
´1´ (´0´) selects unfiltered (filtered) data for the single tap and
double tap interrupts
reserved
´1´ (´0´) selects unfiltered (filtered) data for the slope interrupt
´1´ (´0´) selects unfiltered (filtered) data for the high-g interrupt
´1´ (´0´) selects unfiltered (filtered) data for the low-g interrupt
reserved
reserved
reserved
reserved
´0´ selects push-pull, ´1´ selects open drive for INT2 pin
´0´ (´1´) selects active level ´0´ (´1´) for INT2 pin
´0´ selects push-pull, ´1´ selects open drive for INT1
´0´ (´1´) selects active level ´0´ (´1´) for INT1 pin
Page 44 / not for publishing
Data sheet
BMA250
Bosch Sensortec
03 March 2011

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