ST X-NUCLEO-S2868A2, User Manual

Page: 8 / 19

5 Schematic diagrams
Figure 4. X-NUCLEO-S2868A2 circuit schematic
LL__1100U U__00880055
R R__110000kk__004400
C
S
N
1100uuF F
TX
VDDANASYNTH
SDA
S ST TS SA AF FE E--A A110000
C C__115500nn__00440022
1100R R
C C11
G
P
IO
1
LL1122
N
NM M
C2
ANT
B2
22
1100ppF F
7
SCL
N NM M
LL1111
1. 4 V t o 1. 8 V max
VRSYNTH
VDDSMPS
2
SDI
18
SDI
17
C C3322
nS
1
R R__110000kk__00440022
1
RESET
LL33
G
N
D
25
OUT
R R3366
C C__115500nn__00440022
C C3344
C CR RY YS ST TA ALL__N NX X11661122S SA A
C C__44..77U U__00660033
VDDVCOTX
+3V3
SDO
C1
RX_N
G
P
IO
0
C C__110000pp__00440022
C C22
10
V
D
D
V
C
O
TX
TX
VDD
S S22--LLP P
SDO
1
VDD
G
P
IO
1
21
NC
8
RX_P
A1
C C__11uu__00660033
A AM M1111D DG G--S ST T0011
7
C C__110000pp__00440022
VDDSMPS
R R3377
00R
R
110000ppF F
VSMPS2
11
V
R
R
F
12
C C55
C C4422
C C2222
G
P
IO
3
B1
R R3355
IN
LL__1122nnH H__00660033
4
GND
NC
3
C C1100
C C1122
VRSYNTH
R R3388
VCC
2
19
G
P
IO
0
20
D
5
NM
OUT
IN
JJ11
N NM M
C C1177
SDN
G
P
IO
2
C C99
A2
4
C C__115500nn__00440022
22..22K K
3
C C1188
R R__110000kk__00440022
U U44
C C3366
VDDRXDIG
G
P
IO
2
22..22K K
C C__115500nn__00440022
R R33
C C__110000pp__00440022
R R22
C C__110000pp__00440022
C C1166
NM
nW
3
110000ppF F
RXN
13
R R11
U U22
22..77ppF F,,00440022
C C__1122ppF F__00660033
U U33
SMPS1
3
V
D
D
A
N
A
S
Y
N
TH
8
2
VCC
8
Y Y11
C C3300
110000nnF F
C C1133
NC
6
4
VSS
C
S
N
14
15
S SM MA A A AN NT TE EN NN NA A
M M9955664400
7
C C2255
+3V3
+3V3
C C44 C C88
44..77nnH H
RXP
SDN
6
C C__115500nn__00440022
SCLK
VSMPS2
nS
V
R
S
Y
N
TH
9
VDD
1
LL88
C C__110000nn__00440022
C C__447700pp__00440022
SCL
SCLK
+3V3
VDDRXDIG
SDO
Q
2
+3V3
22..22K K
nHOLD
C
6
C C4411
VDDRXDIG
SDA
V
D
D
V
C
O
T
X
C C__115500nn__00440022
GND1
XOUT
5
XIN
N NM M
LL1133
C C3355
V
R
E
FV
C
O
E E11
LL77
C C__115500nn__00440022
R R2244
LL__3399nnH H__00440022
SDI
C C66
5
16
SCLK
U U11
VDDANASYNTH
VDD
VDDSMPS
SMPS2
4
LL22
GND2
G
P
IO
3
23
V
R
D
IG
24
C C1144
B BA ALLF F--S SP PII22--0011D D33
Figure 5. X-NUCLEO-S2868A2 circuit schematic - Arduino connectors
R R1100
R R1111
SDA
4
3V3
GPIO3
SDN
+5V
D8
and Female on
C CN N55
R R1166
A0
1
D4
5
10
D6
7
1
GPIO0
SCL
5V
5
00
R R1155
nS
00
1
SCL
TXD/D1
PWM/D9
3
1
JJP P11
PA3 R R2233
N NM M
6
GND
A3
4
CSN
Top
8 Pass-Through:
Male on Bottom
00
AREF
9
SDA
R R1133
PWM/D10
4
RXD/D0
2
00
PA2
R R55
D7
8
PC7
nS
R R66
R R1122
A4
5
R R44
SDI
8
+3V3
LLE ED D
SCLK
R R1188 N NM M
SDO
GPIO0
PC7
RESET
N NM M
C CN N88
6 Pass-Through:
Male on Bottom
Top
and Female on
Pass-Through:
Male on Bottom
Top
and Female on
Pass-Through:
Male on Bottom
Top
and Female on
NC
1
A5
6
C CN N66
7
GND
D3
4
VIN
8
N NM M R R1177
D5
6
MISO/D12
6
CSN
00
IOREF
R R99
R R2222
VDD
MOSI/PWM/D11
5
N NM M
2
00
RESET
2
GPIO1 R R1144
00
SCK/D13
7
GND
N NM M R R1199
00
SDN
A2
3
R R77
C CN N99
SCLK
VIN
JJU UM MP PE ER R
D2
3
3
2
333300
D D11
GPIO2
AVDD IOREF
00
A1
2
00
Arduino UNO R3 SX connector Arduino UNO R3 DX connector
UM2638
Schematic diagrams
UM2638 - Rev 1
page 8/19