ST STEVAL-STWINBX1 - Figure 35. Core System Board Circuit Schematic (2 of 8)

Figure 35. Core system board circuit schematic (2 of 8)
EXT 5V
Connector
Differential pairs
90 OHM
eFUSE Protection
PA11
PA12
PB5
PG9
PB4
PA15
PI3
PI0
PI1
PD3
PB15
PA7
PA5
34 pin-Expansion
Connector
Orientation:
Odd pins should be on the side of the pcb
PD12
PD11
PG7
PG8
PB1
PF10
PG5/PG6/PD15
PC6
PC3
PF8
PE2
PE3
PE6
PE4
PE5
PI2
V_USB
5V_EXT
VBUSc VBUSc
VBUSc
3V3_Ext3V3_Ext
S YS
VEXT VEXT
VEXT
5V
V_USB5V 5V_EXT 5V
USART3_RX
USART3_TX
Differential pairs
90 OHM
uC_OTG_DP
uC_OTG_DM
USART3_CTS
USART3_RTS
S P I2_MOS I_p2
I2C3_S CL
I2C3_S DA
INT_E X
GP IO1_EX
ADC_E X
TIM3_P WM
S AI1_S CK_A
S AI1_FS _AS AI1_S D_A
S AI1_S D_B
S AI1_MCLK_A
S P I2_MIS O_p2
GP IO2_EX GP IO3_EX
S P I2_CLK
S P I2_MIS O
S P I2_MOS I
S P I2_NS S
S P I3_CLK
S P I3_MIS O
S P I3_MOS I
S P I3_NS S
U25
1
S TEF05S GR
ILIM
2
EN/FAULT
3
DV/DT
GND
4
5
SOURCE
6
SOURCE
7
VCC
8
VCC
0RS B34
C82 10n/1kV
U17
D1
1
USBLC6-2P 6
2
GND
D2
3
5
VBUS
D3
4
D4
6
C70
100nF
C79
10uF
R31
2.7k
D6
2 1
ES DA7P60-1U1M
D7
21
R45 1M
NUS B27
R30
10k
CN1
12
CON34-S ocket
34
56
78
910
1112
1314
1516
17
18
1920
2122
2324
2526
27
28
2930
3132
3334
C52
100nF
D4
21
DS1
12
BAT30KFILM
S B28 NU
R37
120R
USB 3.0
0
0
0
0
0
0
0
0
0
0
J 13
S1
10
S2
12401598E4#2A
11
S3
13
S4
14
GND
B1
TX2+
B2
TX2-
B3
VBUS
B4
CC2
B5
D2+
B6
D2-
B7
SBU2
B8
VBUS
B9
RX1-
B10
RX1+
B11
GND
B12
GND
A1
TX1+
A2
TX1-
A3
VBUS
A4
CC1
A5
D1+
A6
D1-
A7
SBU1
A8
VBUS
A9
RX2-
A10
RX2+
A11
GND
A12
0R
S B20
S B29 NU
U22
1
CC2
TCP P 01-M12
GND
2
CC1
3
4
SOURCE
5
GATE
6
VBUS_ctrl
7
CC1c
9
CC2c
8
IN_GD
DB/
10
FLT/
11
VCC
12
13
exp pa d GND
C85
NU
NUS B30
S B21
0R
J 5
1
CON2
2
0RS B31
Q1
1
2
3
S TL6N3LLH6
4
5
6
7
8
S B32 0R
S B33 0R
C78
10uF
S B22
NU
CC1c
CC2c
CC1c
USB_OTG_DM
USB_OTG_DP
USB_OTG_DP
USB_OTG_DM
EX_S P I_NSS
EX_S P I_MOS I
EX_S P I_MIS O
EX_S P I_CLK
CC2c
USB_OTG_DP
USB_OTG_DM
EX_S P I_CLK
EX_S P I_MIS O
EX_S P I_MOS I
EX_S P I_NSS
UM2965 - Rev 1
page 36/58
UM2965
Schematic diagrams