BMA250 Datasheet, PDF (62/74 Pages) List of Unclassifed Manufacturers – Digital, triaxial acceleration sensor

BMA250
Data sheet
7. Pin-out and connection diagram
7.1 Pin-out
Bosch Sensortec
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Bottom View
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Figure 18: Pin-out top view
Figure 19 Pin-out bottom view
Table 75: Pin description
Pin#
1
2
3
4
5
6
7
8
9
10
11
12
Name
SDO
SDx
VDDIO
NC
INT1
INT2
VDD
GNDIO
GND
CSB
PS
SCx
I/O Type
Digital out
Digital I/O
Supply
--
Digital out
Digital out
Supply
Ground
Ground
Digital in
Digital in
Digital in
Description
Serial data output in SPI
Address select in I²C mode
see chapter 6.2
SDA serial data I/O in I²C
SDI serial data input in SPI 4W
SDA serial data I/O in SPI 3W
Digital I/O supply voltage (1.2V
… 3.6V)
Interrupt output 1
Interrupt output 2
Power supply for analog & digital
domain (1.62V … 3.6V)
Ground for I/O
Ground for digital & analog
Chip select for SPI mode
Protocol select (GND = SPI,
V_DDIO = I²C, float = µC-less). Pin
must not float unless dedicated
mode is used, see chapter 4.2.2
SCK for SPI serial clock
SCL for I²C serial clock
in SPI 4W
SDO
SDI
V_DDIO
GND
INT1
INT2
V_DD
GND
GND
CSB
GND
SCK
Connect to
In SPI 3W
DNC (float)
in I²C
GND for
default addr.
SDA
SDA
V_DDIO
GND
INT1
INT2
V_DD
GND
GND
CSB
GND
V_DDIO
GND
INT1
INT2
V_DD
GND
GND
DNC (float)
V_DDIO
SCK
SCL
Rev. 1.15
Page 62 / not for publishing
31 - May - 2012
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Note: Specifications within this document are subject to change without notice.