Schematic
diagrams
UM2170
16/24
DocID030279 Rev 1
Figure 18: STEVAL-ILL082V1 circuit schematic (2 of 2)
3V3
PA2_GPIO_2_RADIO
3V3
PA5_SPI_SCK_RADIO
PA6_SPI_MISO_RADIO
PA7_SPI_MOSI_RADIO
PB1_SPI_CS_RADIO
PB5_SDN_RADIO
PA14_SWCLK
PA1_GPIO_3_RADIO
PA2_GPIO_2_RADIO
PA3_GPIO_1_RADIO
PB5_SDN_RADIO
PB1_SPI_CS_RADIO
PA7_SPI_MOSI_RADIO
PA6_SPI_MISO_RADIO
PA5_SPI_SCK_RADIO
PB4_LED_DIMM
PA10_LED_OFF
3V3
NRST
PA13_SWDIO
PA14_SWCLK
PA0_GPIO_0_RADIO
PA13_SWDIO
3V3
PA3_GPIO_1_RADIO
3V3
NRST
PA0_GPIO_0_RADIO
PA1_GPIO_3_RADIO
NRST
3V3
3V3
MCU Supply
MCU Power Supply
Programming Connector
BLE/SPIRIT Transceiver Unit
Microcontroller Unit
C15
10uF
R18 10K
R19 18K
C14
47uF
C19
100nF
R17
10K
U3
STM32L05x
PB
8
32
B
OO
T0
31
PB
7
30
PB
6
29
PB
5
28
PB
4
27
PB
3
26
PA
15
25
PA14
24
PA13
23
PA12
22
PA11
21
PA10
20
PA9
19
VDD_3
1
PC14_OSC_IN
2
PC15_OSC32_OUT
3
NRST
4
VDDA
5
PA0
6
PA2
8
PA1
7
PA
6
12
PA
4
10
PA
5
11
PA
7
13
PB
1
15
VDD
17
PB
2
16
PA8
18
PA
3
9
PB
0
14
G
ND
_PA
D
33
U4
SPSGRF
GPIO_3
1
GPIO_2
2
GPIO_1
3
GPIO_0
4
Vin
5
G
N
D
6
11
SDN
SPI_CS
10
SPI_MOSI
9
SPI_MISO
8
SPI_CLK
7
J3
HEADER 5X2
2
4
6
8
10
1
3
5
7
9
C18
100nF
U2
LDL212
VOUT
1
VADJ
8
EN
5
VIN
4
GND
2
GND
3
GND
7
GND
6
C16
100nF
C17
100nF
C20
10uF
SW1
PUSHBUTTON
1
2
4
3
C13
100nF
