
UM
157
4
S
TM8
A
F
b
o
ard
e
le
c
tr
ic
al
sch
emat
ic
s
Do
c
ID 023
645 Re
v
1
3
9
/48
Figure 23.
STM8AF board MCU
1
1
2
2
3
3
4
4
D
D
C
C
B
B
A
A
STMicroelectronics
Title:
Number:
Rev:
Sheet of
B.0(PCB.SCH)
Date:
10/3/2012
MB1036
3
4
STM8AF BOARD MCU
PA4
PA5
PA4
PA5
SPI_NSS
CAN_TX
LD3
red
PA3
R25
1K
C30
100nF
5V
User Button 1
PE1
User Button 2
C36
100nF
5V
1
2
3
4
B2
SW-PUSH-CMS
1
2
3
4
B1
SW-PUSH-CMS
MCO
MCO
SB3
Close to XTAL & MCU
Not Fitted
C17
20pF
C18
20pF
X2
16MHz
VDD
5V
C19
10nF
NRST
PA1
PA2
PA3
PA4
PA5
PA6
VCAP
C14
680nF
VDD
VDD
L1
BEAD
C15
1uF
C21
100nF
VDDA
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PE
0
PE
1
PE
2
PE
3
SPI_NSS
PE
6
PE
7
PC1
PC2
PC3
PC4
SPI_SCK
SPI_MOSI
SPI_MISO
CAN_TX
CAN_RX
PD
0
ST
_L
IN
K
_
SW
IM
PD
2
PD
3
PD
4
LI
N
_
T
X
LI
N
_
R
X
PD
7
VDD
C22
100nF
C16
100nF
C20
100nF
NRST
ST_LINK_SWIM
STM8AF_USART_TX
STM8AF_USART_RX
R23
0
R30
4K7
PE2
R42
4K7
LD7
green
PC3
R29
510
LD4
green
PD3
R26
510
LD6
green
PE3
R28
510
LIN_TX
LIN_RX
SPI_SCK
SPI_MOSI
SPI_MISO
CAN_RX
5V
PE7
NRST
1
OSCIN/PA1
2
OSCOUT/PA2
3
Vssio_1
4
Vss
5
VCAP
6
Vdd
7
Vddio_1
8
PA3
9
PA4
10
PA5
11
PA6
12
Vd
d
a
13
Vs
sa
14
PB7
15
PB6
16
PB5
17
PB4
18
PB3
19
PB2
20
PB1
21
PB0
22
PE
7
23
PE
6
24
PE5
25
PC1
26
PC2
27
PC3
28
PC4
29
PC5
30
Vssio_2
31
Vddio_2
32
PC6
33
PC7
34
PG0
35
PG1
36
PE
3
37
PE
2
38
PE
1
39
PE
0
40
PD
0
41
PD
1
42
PD
2
43
PD
3
44
PD
4
45
PD
5
46
PD
6
47
PD
7
48
U4
STM8AF5288T
R24
10K
R22
60
PB0
PB1
PB2
PB3
PB4
PC1
PC2
PC4
PE0
PD2
PD4
PD7
1
3
2
RV1
10K
PB5
PB6
PB7
LD5
green
PD0
R27
510
PA6
PE6