SMB380 Jennic, SMB380 Datasheet - Page 32

• Manufacturer Part Number: SMB380
• Description: Smb380 Triaxial Acceleration Sensor
• Manufacturer: Jennic

4.2 I²C interface
The SMB380 automatically detects I
this document. The I²C bus uses SCK (serial clock) and SDA (=SDI, serial data input/output).
SDA is bidirectional with pull down open drain; it must be externally connected to VDDIO via a
pull up resistor. CSB is not used and must be connected to VDDIO.
Figure 11: Timing diagram for I²C interface (SDI=SDA)
Rev. 1.3
© Bosch Sensortec GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of disposal such
copying and passing on to third parties. BOSCH and the symbol are registered trademarks of Robert Bosch GmbH, Germany.
7211RB11
SDI
SCK
SDI
. Specifications are subject to change without notice.
t
BUF
t
HDSTA
t
LOW
Triaxial acceleration sensor
Preliminary Data Sheet
2
C or SPI communication. Please refer to chapter 6 later in
t
r
SMB380
Page 32
t
SUSTA
t
HDDAT
t
HIGH
t
f
t
SUDAT
Bosch Sensortec
18-September-2007
t
SUSTO