BMA150 Datasheet, PDF (42/55 Pages) List of Unclassifed Manufacturers – Digital, triaxial acceleration sensor

Data sheet
BMA150
Triaxial, digital acceleration sensor
Bosch Sensortec
6. Pin-out out and connection diagrams
Figure 21: Pin-out of the BMA150 (bottom view);
Note: The pin-out schemes of the BMA150 and the SMB380 in QFN package are identical.
Table 12: Pin-out description of the BMA150
Pin
No
Name
1 reserved
Type
2
V_DD
Power
3
GND Power
Description
Do not connect
Analogue power
supply
Ground
Connect to
(in SPI 4w)
NC
Connect to
(in SPI 3w)
NC
Connect to
(in I²C)
NC
Stand alone
(without µC)
NC
V_DD
V_DD
V_DD
V_DD
GND
GND
GND
GND
4
INT Output
Interrupt
INT / NC
INT / NC INT / NC
INT
5
CSB
Input
6
SCK
Input
Chip select
Serial clock
CSB
SCK
CSB
SCK
V_DDIO
SCK
V_DD
GND
7
SDO Output Serial data out
8
SDI
Input /
Output
Serial data in / out
9
V_DDIO
Power
Digital interface
power supply
10 reserved
Do not connect
SDO
SDI
V_DDIO
NC
GND
SDA
V_DDIO
NC
GND
SDA
V_DDIO
NC
GND
GND
V_DD
NC
11 reserved
Do not connect
NC
NC
NC
NC
12 reserved
Do not connect
NC
NC
NC
NC
Recommendation for decoupling: between GND and VDD (pin 1 or 2) a 22nF capacitor and between
GND and IOVDD (pin 9) a 100nF capacitor should be connected.
Rev. 1.5
Page 42
30 May 2008
© 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.