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 62/74

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7. Pin-out and connection diagram
7.1 Pin-out
Top View
Pads not visible!
Figure 18: Pin-out top view
Table 75: Pin description
Pin#
Name
I/O Type
Description
1
SDO
Digital out
Serial data output in SPI
Address select in I²C mode
see chapter 6.2
2
SDx
Digital I/O
SDA serial data I/O in I²C
SDI serial data input in SPI 4W
SDA serial data I/O in SPI 3W
3
VDDIO
Supply
Digital I/O supply voltage (1.2V
… 3.6V)
4
NC
--
5
INT1
Digital out
Interrupt output 1
6
INT2
Digital out
Interrupt output 2
7
VDD
Supply
Power supply for analog & digital
domain (1.62V … 3.6V)
8
GNDIO
Ground
Ground for I/O
9
GND
Ground
Ground for digital & analog
10
CSB
Digital in
Chip select for SPI mode
11
PS
Digital in
Protocol select (GND = SPI,
V
must not float unless dedicated
mode is used, see chapter 4.2.2
12
SCx
Digital in
SCK for SPI serial clock
SCL for I²C serial clock
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
Figure 19 Pin-out bottom view
in SPI 4W
SDO
SDI
V
GND
INT1
INT2
V
GND
GND
CSB
GND
= I²C, float = μC-less). Pin
DDIO
SCK
Page 62 / not for publishing
Bosch Sensortec
Bottom View
Pads visible!
Connect to
In SPI 3W
in I²C
DNC (float)
GND for
default addr.
SDA
SDA
V
V
DDIO
DDIO
DDIO
GND
GND
INT1
INT1
INT2
INT2
V
V
DD
DD
DD
GND
GND
GND
GND
CSB
DNC (float)
GND
V
DDIO
SCK
SCL
03 March 2011