Figure 36. Usart, Can Transceiver And Pmod Connector - ST STM32L4R9I-EVAL User Manual

C105 100nF 28
24
C26 100nF
UART_RTS_3V3 14
UART_TX_3V3 13
12
21
20
19
PG8
UART_RX 18
UART_RX_3V3
17
PB13
UART_CTS 16
UART_CTS_3V3
15
23
C17 VDD U1
100nF 1
VCCA
PG7
2
UART_TX A1
PB12
3
UART_RTS A2
4
GND
R5 R19 SN74LVC2T45DCUT
100K 100K
VDD
VDD
C138
100nF
U25
PB9
R247 0 1
CAN_TX D
2
GND
3
VCC
PB8
JP12 4
CAN_RX R
Default setting: Closed SN65HVD230
Operating voltage range: 3.0<VDD<3.6V

Figure 36. USART, CAN transceiver and PMOD connector

USART
+3V3
U9 C106
26 100nF
C1+ VCC
25
C1- GND
1 27 C107
C2+ V+
2 3 100nF
C2- V-
C32 100nF
9
T1IN T1OUT
10
T2IN T2OUT
11
T3IN T3OUT
R1OUTB
R2OUTB
4
R1OUT R1IN
5
R2OUT R2IN
6
R3OUT R3IN
7
R4OUT R4IN
8
R5OUT R5IN
+3V3
22
nEN nSHDN
ST3241EBPR
+3V3 C15
100nF
8
VCCB
7 UART_TX_3V3
B1
6 UART_RTS_3V3
B2
5
DIR
VDD
VDD
R152 R151
10K 0
Default setting: 1<->2
JP14
Default setting: Closed
8 JP13
RS
7 Header 2X1
CANH
6
CANL
5
Vref
R154
120
D7
ESDCAN24-2BLY
Optional
R153
[N/A]
CN7
DB9-male
1
DSR
6
RXD
2
RTS
7
TXD
3
CTS
8
4
9
5
PI0
SPI_CS
PB13
UART_CTS
PI3
SPI_MOSI
PG7
UART_TX_3V3
PI2
SPI_MISO
PG8
UART_RX
PI1
SPI_SCK
PB12
UART_RTS_3V3
PB14
R21
PMOD_RST
PG13
R20
PMOD_INT
CN22
DB9-male
1
6
2
7
3
8
4
9
5
R155
0
Title:
+3V3
Project:
Size:
Date:
PMOD
SB4
SB5 P1
SB6
1 7
SB7
2 8
SB9
3 9
SB8
4 10
SB10 +3V3
5 11
SB11
6 12
SSW-106-02-F-D-RA
ATOM FH254206C-1600
0
0
Interface
STM32L4Rx-EVAL
A4 Reference: MB1313 Revision: B.1
6/5/2017 Sheet: 14 of 16