AK8975 Datasheet, PDF (29/34 Pages) Asahi Kasei Microsystems – 3-axis Electronic Compass

[AK8975/C]
9. Example of Recommended External Connection
9.1. I²C Bus Interface
<AK8975>
VDD
POWER 2.4V~3.6V
VID
POWER 1.65V~Vdd
Slave address select
CAD1 CAD0 address
VSS VSS 0 0 0 1 1 0 0 R/W
VSS VDD 0 0 0 1 1 0 1 R/W
VDD VSS 0 0 0 1 1 1 0 R/W
VDD VDD 0 0 0 1 1 1 1 R/W
Host CPU
Interrupt
0.1µF
12 11 10 9
13
open¹⁴
CAD0
TST2
15
VSS
16
VDD
AK8975
(Top View)
8
NC1 _open
7
VID
6
SO _open
SDA/SI ⁵
0.1µF
1 2 ³⁴
open or
VSS
I²C i/f
Power for i/f
<AK8975C>
Same as AK8975
MS1187-E-02
- 29 -
2010/05