ST STEVAL-STWINBX1 - Figure 37. Core System Board Circuit Schematic (4 of 8)

Figure 37. Core system board circuit schematic (4 of 8)
Close to
VREF/VDDA
Close to VDD
Close to
VDDUSB
USR/BOOT
Close to VDDIO2
MDF1_SDI3
MDF1_CKI3
Close to
VDDSMPS
Close to pins
| || EXTI0 | USR_BUTTON | PE0 |
| | | PF1 | | EXTI1 | INT1_DLPC
| | | PF2 | | EXTI2 | INT2_DLPC
+--------+-------------+------+------------+------+
| Line | Function 1 | Pin | Function 2 | Pin |
+--------+-------------+------+------------+------+
| | | PF3 | | EXTI3 | INT1_ICLX
| | | PF4 | | EXTI4 | INT2_DHCX
| EXTI5 | INT_STT | PG5 | | PF5 | INT_EX
| EXTI6 | INT_HTS | PI6 | INT_EX | PG6 |
| || EXTI7 | WIFI_NOTIFY | PE7 |
| | | PB8 | | EXTI8 | INT1_DHCX
| || EXTI9 | INT_MAG | PF9 |
| || EXTI10 | BUTTON_PWR | PD10 |
| | | PF11 | | EXTI11 | INT2_ICLX
| || EXTI12 | INT_LPS | PG12 |
| || EXTI13 | NFC_INT | PB13 |
| || EXTI14 | BLE_INT | PF14 |
| EXTI15 | INT1_DWB | PD15 | | PF15 | INT_EX
PD5
PD6
PD7
PD5
PD6
STM32 current monitoring
PA5
+--------+-------------+------+------------+------+
PD12
PA7
DCDC_ 1 VDD_uC
VDD_uC
VDD_uC
VDD_uC
2V75 A
VDD_uC
VDD_uC
VDD_uC
VDD_uC
2V75 A
2V75 A
VDD_uC
VDD_uC
I2C2 _S CL
I2C2 _S DA
CHR G
C_ EN
DCDC_ 2_E N
S W_S EL
BUTTON_P WR
uC _ADC_BATT
CS _DWB
CS _DHCX
INT2_DHCX
INT1_ICLX
CS _ICLX INT_MAG
INT2_DLP C
INT1_DLP C
INT_HTS
US ART2 _RTS
US ART2 _TX
S D_DETEC T
S DMMC_D2
S DMMC_D3
S DMMC_CMD
S DMMC_CK
S DMMC_D0
S DMMC_D1
ADF1_S DIO
ADF1_C CK0
BLE_TES T8
BLE_TES T9
BLE_INT
BLE_S PI_C S
BLE_R S T
ADC1_IN1
ADC1_IN2
WIFI_NOTIFY
WIFI_EN
WIFI_FLOW
DAC1_OUT1
NFC _ INT
S P I3_ CLK
S P I3_ MOS I
S P I3_ MISO
I2C2 _S CL
I2C2 _S DA
S P I2_ MOS I
S P I2_ MISO
S P I2_ CLK
S P I1_ MOS I
S P I1_ MISO
S P I1_ CLK
WIFI_CS
INT2_ICLX
uC _OTG_DM
uC _OTG_DP
S TS AFE_ RES ET
RTC _ TAMP1
I2C1 _S CL
I2C1 _S DA
I2C3 _S CL
I2C3 _S DA
I2C3 _S CL
I2C3 _S DA
S AI1_FS _A
S AI1_S C K_A
S AI1_S D_ B
S AI1_MCLK_A
S AI1_S D_ A
US ART3 _RX
US ART3 _TX
US ART3 _CTS
US ART3 _RTS
ADC_EX
TIM3_ P WM
INT_EX
S P I2_ NS S
CS _DLPC
S P I2_ MISO_p2
S P I2_ MOS I_p2
GP IO1_E X
GP IO2_E X
GP IO3_E X
INT_EX
INT_EX
US ART2 _RX
UART_TX_485
UART_RX_48 5
S P I3_ NS S
INT1_DHCX
INT_S TT
INT1_DWB
INT_LPS
WIFI_BOOT
US ART2 _RX
US ART2 _TX
US ART3 _RTS
US ART3 _RX
US ART3 _TX
UART_RTS _48 5
US ART2 _TX
US ART2 _RX
US ART2 _RTS
UART_TX_485
UART_RX_48 5
UART_RTS _48 5
LDO_E N
S B41 0R R4 7 0R
L3 2.2uH
R3
4.7 k
C6 4
10 0nF
C4 2
10 0nF
X1
1
16 MHz
3
2
4
NUS B39
C6 8
2.2 uF
1
RE S ET1
4
2 3
0RS B24
C8 1
10 0pF
R1
10 k
C6 0
10 uF
R3 8
4.7 k
C3 2
10 0nF
R2 9
56 0R
0RS B42
C6 5
10 0nF
C3 8
V
10 0nF
LED1
21
KPHHS -100 5MGCK
C6 9
2.2 uF
CN4
1
S TDC 14
2
3 4
5 6
7 8
9 10
11 1 2
13 1 4
C2 9
10 0nF
C8 0
10 0nF
R3 9
4.7 k
AR
LED2
21
S ML-P1 2DTT86R
C3 7
4 of 4
10 0nF
U20 C
VBAT
C1
S TM32 U585 AII3QU
VDD
A3
A4
VDD11a
VDD11b
N11
VDDA
L2
A6
VDDIO2
H12
VDDIO2_ 1
VDDSMPS
N10
VDDUS B
E1 3
A8
VDD_1
VDD_2
A11
VDD_3
B1
G1
VDD_4
VDD_5
D13
VDD_6
J 1 3
VDD_7
N3
VDD_8
N7
VDD_9
N12
N9
VLXSMPS
VREF+
L1
VSS
B2
VSS A
K2
VSS SMP S
M10
B4
VSS _1
VSS _10
M11
VSS _2
B8
VSS _3
B11
VSS _4
E1 2
VSS _5
F2
H2
VSS _6
VSS _7
J 1 2
VSS _8
M3
VSS _9
M7
C3 5
10 0nF
X2
32 .768 0KHZ
C2 8
3 of 4
10 0nF
U20 A
NRS T
H3
S TM32 U585 AII3QU
M1
OP AMP1_ VINM
H5
P I0
OP AMP2_ VINM
B12
P I1
A12
P I2
D11
P I3
D10
P I4
B10
P I5
B3
P I6
A2
P I7
C3
R2 8
1k
NUS B25
2 of 4
U20 B
P E0
D4
S TM32 U585 AII3QU
P E1
C4
P E10
H8
P E11
M8
P E12
N8
P E13
L8
P E14
K8
P E15
M9
P E2
A1
P E3
D3
P E4
C2
P E5
D2
P E6
E4
P E7
L7
P E8
K7
P E9
J 7
P F0
E2
P F1
F3
P F10
H4
P F11
M5
P F12
K6
P F13
M6
P F14
L6
P F15
N6
P F2
F4
P F3
G5
P F4
G6
P F5
G4
P F6
H6
P F7
G2
P F8
F1
P F9
G3
P G0
J 6
P G1
H7
P G10
C7
P G12
E6
P G15
A5
P G2
K13
P G3
J 8
P G4
H11
P G5
J 9
P G6
H10
P G7
G8
P G8
H9
P G9
A7
H1
P H0-O S C _IN
P H10
C1 3
P H11
D9
P H12
B13
P H13
C1 2
P H14
C1 1
P H15
A13
J 1
P H1_OS C_O UT
P H2
F1 0
C5
P H3-BO OT0
P H4
E1 0
P H5
F9
P H6
E1 1
P H7
F8
P H8
D12
P H9
E9
C4 1 6.8 pF
C3 4
4.7 uF
C6 6
10 0nF
TVS2
12
ES DALC6V1-1M2
C3 1
10 0nF
C6 2
10 0nF
C1
10 0nF
C3 6 6.8 pF
C6
5.6 pF
C6 7
1u F
NUS B26
C6 1
10 0nF
C2 6
10 0nF
CN5
NU
1 2
3 4
5 6
7 8
9 10
11 12
13 14
US R 1
1
4
2 3TVS 3
12
ES DALC6V1-1M2
0RS B23
C4 0
1u F
1 of 4
U20 D
P A0
K3
S TM32 U585 AII3QU
P A1
L3
P A10
F1 1
P A11
G1 3
P A12
F1 3
P A13
F1 2
P A14
C1 0
P A15
A10
P A2
M2
P A3
N2
P A4
N1
P A5
K4
P A6
N4
P A7
J 5
P A8
G7
P A9
G1 1
P B0
K5
P B1
N5
P B10
K9
P B11
L9
P B12
L10
P B13
N13
P B14
M12
P B15
L11
P B2
L5
P B3
D6
P B4
B6
P B5
C6
P B6
B5
P B7
F5
P B8
E5
P B9
D5
P C0
J 2
P C1
J 3
P C10
C9
P C11
A9
P C12
E8
P C13
E3
D1
P C14 -O S C32 _IN
E1
P C2
J 4
P C15 -O S C32 _OUT
P C3
K1
P C4
L4
P C5
M4
P C6
H13
P C7
G1 2
P C8
G1 0
P C9
G9
P D0
B9
P D1
F6
P D10
K11
P D11
M13
P D12
K10
P D13
K12
P D14
J 1 0
P D15
J 1 1
P D2
F7
P D3
D8
P D4
C8
P D5
E7
P D6
B7
P D7
D7
P D8
L12
P D9
L13
S B40 0R
C6 3
10 uF
R2
4.7 k
C3 9
10 0nF
C5
5.6 pF
OS C _ IN
OS C _ OUT
S WDCLK
S WDIO
RE S ET
OS C 3 2_IN
OS C 3 2_OUT
LED1 LED2
BOOT0-P E0/US R
RE S ET
US ART2 _TX_S TDC
S WO
US ART2 _RX_S TDC
S WDCLK
S WDIO
S WO
RE S ET
BOOT0-P E0/US R
BOOT0-P E0/US R
LED1
LED2
OS C 3 2_IN
OS C 3 2_OUT
OS C _ IN
OS C _ OUT
US ART2 _TX_S TDC
US ART2 _RX_S TDC
S WDIO
S WDCLK
S WO
RE S ET
US ART2 _RX_S TDC US ART2 _TX_S TDC
UM2965 - Rev 1
page 38/58
UM2965
Schematic diagrams