ST STEVAL-STWINBX1 - Figure 36. Core System Board Circuit Schematic (3 of 8)

Figure 36. Core system board circuit schematic (3 of 8)
6-Axis
Acc + Gyro
I2C Addr: 0011110b
Magnetometer Accelerometer
Vibrometer
Temperature
I2C Addr: 0111111b
Humidity & Temperature
Inclinometer
Pressure
Sensors current monitoring
I2C Addr: 1011101b
PH4
I2C Addr: 1011111b
PF0
PB4
PB5
PG9
PF4
PF15
PF3
PF11
PF9
PF1
PF2
PI6
PG12
PF5
PH15
PB8
PH6
PF12
PI7
PI3
PI1
PD3
DCDC_1 3V3_S e ns ors
3V3_S e ns ors
3V3_S e ns ors3V3_S e ns ors
3V3_S e ns ors
3V3_S e ns ors
3V3_S e ns ors
3V3_S e ns ors
3V3_S e ns ors 3V3_S e ns ors
3V3_S e ns ors
3V3_S e ns ors
3V3_S e ns ors
3V3_S e ns ors
3V3_S e ns ors
3V3_S e ns ors
3V3_S e ns ors
3V3_S e ns ors
3V3_S e ns ors
3V3_S e ns ors
3V3_S e ns ors
3V3_S e ns ors
I2C2_S CL
I2C2_S DA
S P I2_CLK
S P I2_MIS O
S P I2_MOS I
INT2_DHCX
INT1_DHCX
INT1_DWB
CS _DWB
INT_MAG
CS _DHCX
INT2_DLPC
CS _DLPC
INT1_DLPC
INT_S TT
CS _ICLX
INT1_ICLX
INT2_ICLX
INT_HTS
INT_LPS
C7
100nF
C15
100nF
S B37 NU
U21 IIS2ICLXTR
1
VDDIO
CS
2
3
GND1
4
INT2
5
SD0/S A0
6
INT1
7
SDx
8
VDD2
9
VDD1
SCL
10
11
SDA/SDISCx
12
GND2
13
NC# 3
14
NC# 2
15
NC# 1
16
U6
6
SDA
S TTS 22HTR
4
Addr
1
SCL
VDD
3
GND
5
2
INT
EXP
7
C30
4.7uF
C49
100nF
C16
0.22uF
C57
100nF
TP 8
U9
IS M330DHCXTR
10
OCS _Aux
1
SDO/S A0
5
VDDIO
4
INT1
3
SCx
2
SDx
CS
12
9
INT2
7
GND2
8
VDD
6
GND1
11
SDO_Aux
SCL
13
SDA
14
C25
100nF
CN3
1
2
3
4
U12
6
GND
IIS2DLP CTR
RES
7
8
GND3
9
VDD
3
SDO/S A0
4
SDA/I/O
INT2
11
1
SCL/SPC
CS
2
NC
5
VDDIO
10
INT1
12
C33
100nF
D8
NU
C48
100nF
TP 4
C58
100nF
C13
100nF
D9
NU
S B38 0R
R4
7.5k
U3
CS
6
ILPS 22QS TR
5
SDO/S A0
4
3
RES
SDA/SDI/SDO
2
SCL/SPC
1
VDD_IO
8
GND1
9
GND2
7
INT_DRDY
VDD
10
TP 5
C51
100nF
TP 9
C10
10uF
TP 6
S B35 0R
C84
NU
U11
6
IIS3DWBTR
GND1
5
VDDIO
4
INT1
3
SCx
2
SDx
1
SDO/S A0
8
VDD
9
INT2
10
OCS _Aux
11
SDO_Aux
CS
12
SCL
13
7
GND2
SDA
14
C50
10uF
C59
100nF
C12
100nF
U13
GND
6
IIS2MDCTR
10
VDDIO
INT
7
2
NC3
9
VDD
C1
5
NC2
12
NC1
11
CS
3
1
SCL
8
GND2
4
SDA/I/O
R46 0R
S B36 NU
U2 HTS221
SDA
4
3
DRDY
2
SCL
VDD
1
GND
5
CS
6
C14
100nF
C56
100nF
S P I2_CLK
S P I2_CLK
S P I2_MOS I
S P I2_MOS I
S P I2_MIS O
S P I2_MIS O
I2C2_S CL
I2C2_S DA
S P I2_CLK
S P I2_MIS O
S P I2_MOS I
I2C2_S CL
I2C2_S DA
S P I2_MIS O
S P I2_MOS I
S P I2_CLK
I2C2_S CL
I2C2_S DA
Q-
I2C2_S DA
I2C2_S CL
Q+
Q-
Q+
UM2965 - Rev 1
page 37/58
UM2965
Schematic diagrams