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Figure 5.
STEVAL-IOD004V1 (main board) circuit schematic (3 of 4)
Low Current
DEBUG LED
IN
T
1_
iN
E
M
O
GND
L6364_UART TX
L6364_UART RX
L6364_MOSI
L6364_MISO
L6364_INT
I2C_SCL
I2C_SDA
CLTD
L6364_SS
INT2_iNEMO
IIS
2D
M
C
_D
R
D
Y
L6
36
4_
S
C
LK
U
S
A
R
T
2_
T
X
U
S
A
R
T
2_
R
X
3V3
3V3
3V3
3V3
3V3
3V3
3V3
3V3
R9
10K
NM
C11
100nF
R5
100
U2
STM32G071EBY
PA15
A1
PA14-BOOT0
A2
PB5
A3
PB7
A4
PC14-ASC32IN
A5
PA12[PA10]
B1
PA13
B2
PB6
B3
PB8
B4
PC15-ASC32OUT
B5
PA11[PA9]
C1
PA6
C2
PA3
C3
C4
PA0
C5
VDD/VDDA
PA8
D1
PA7
D2
PA4
D3
PA1
D4
VSS/ASSA
D5
P
B
1
E
1
P
B
0
E
2
P
A
5
E
3
P
A
2
E
4
P
F
2
-N
R
S
T
E
5
C12
22uF
R2
10K
C9
100nF
R8
10K
NM
R3
2.7K
C8
22uF
R11
680
R10
10K
NM
R6
100
LD3
LED BLUE
A
C
R4
2.7K
C10
100nF
SW2
miniswitch
J1
SWD connector -Programming
1
2
3
4
5
6
7
8
9
10
R7
10K
NM
L6364_SS
3V3
USART1_TX
GND
L6
36
4_
S
C
LK
N
R
S
T
L6364_INT
I2C_SCL
L6364_CTLD
USART1_RX
I2C_SDA
SYS_SWDIO
MCU_PB5
L6364_MISO
L6364_MOSI
IIS
2D
M
C
_D
R
D
Y
L6364_UART RX
U
S
A
R
T
2_
T
X
SYS_SWCLK
L6364_UART TX
L6364_MISO
L6364_INT
SYS_SWDIO
SYS_SWCLK
GND
NRST
I2C_SCL
L6364_CTLD
L6364_SS
L6364_MOSI
L6364_UART TX
L6364_UART RX
NRST
G
N
D
G
N
D
I2C_SDA
MCU_PB5
GND
USART2_RX
GND
GND
GND
GND
PA0
PA1
PA3
PA4
PA0
PA3
PA1
PA4
G
N
D
GND
UM2942
-
Rev 1
page 10
/20
UM2942
Schematic diagrams