BMA150 datasheet(33/56 Pages) BOSCH

33 / 56 page

Data sheet

BMA150

Triaxial, digital acceleration sensor

Bosch Sensortec

Rev. 1.6

Page 33

30 October 2008

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 11: Specification of I²C serial interface (SDI=SDA)

Interface parameters :

Conditions

Min.

Typ.

Max.

unit

Input - low level

Vil_si

VDDIO=1.62V to 3.6V

0.3*VDDIO

Input - high level

Vih_si

VDDIO=1.62V to 3.6V

0.7*VDDIO

Output – low level

Vol_SDI

VDDIO=1.8V, iol=3 mA

0.4

Output – high level

Voh_SDI

VDDIO=1.8V, ioh=1mA

1.4

I²C bus load capacitor Cb

On SDI and SCK

100

I²C timings :

SCK frequency

FI²C

3.4

MHz

SCK low period

Tlow

160

SCK high period

Thigh

SDI setup time

Tsudat

SDI hold time

Thddat

Setup time

for a repeated

start condition

Tsusta

160

Hold time for a

start condition

Thdsta

160

Setup time for a

stop condition

Tsusto

160

Time before a new

transmission can start

Tbuf

100

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