STMicroelectronics STM32L476G-EVAL - Figure 40. USART and Irda - Schematic Diagram

UM1855 Schematic diagrams
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Figure 40. USART and IrDA - schematic diagram
925
USART_IrDA
MB1144 B-02
6/24/2015
Title:
Size: Reference:
Date: Sheet: of
A3
Revision:
STM32L476G-EVAL
Project:
SD
5
TxD
3
GND
8
Anod e (VCC2)
1
Cathode
2
RxD
4
VCC1
6
Vlogic
7
U11
TFDU6300
+3V3
C67
4.7uF
C71
4.7uF
1
6
2
7
3
8
4
9
5
CN9
DB9-male
USART1/I rDA_RX_3V3
USART
Bootloader_BOOT0_3V3
Bootloader_ RESET_3V3
C2+
1
C2-
2
V-
3
R1IN
4
R2IN
5
R3IN
6
R4IN
7
R5IN
8
T1OUT
9
T2OUT
10
T3OUT
11
T3IN
12
T2IN
13
T1IN
14
R5OUT
15
R4OUT
16
R3OUT
17
R2OUT
18
R1OUT
19
R2OUTB
20
R1OUTB
21
nSHDN
22
nEN
23
C1-
24
GND
25
VCC
26
V+
27
C1+
28
U10
ST3241EBPR
C62
100nF
C64
100nF
C61
100nF
C65
100nF
C63
100nF
+3V3
+3V3
RXD
RTS
TXD
CTS
DSR
R113
0
USART1_CTS_3V3
PG11
R112 5.1
R115 47
PB7
USART1_RTS_3V3
PG12
VCCA
1
A1
2
A2
3
GND
4
DIR
5
B2
6
B1
7
VCCB
8
U12
SN74LVC2T45DCUT
+3V3
VDD
VDD
C66
100nF
C69
100nF
R114
100K
R117
100K
VDD
USART1_RTS_3V3
R93 0
R118 0
R116 0
C70
100nF
C68
100nF
USART1_TX
IRDA
USART1_RTS
PB6
NFC_IRQINN
NFC_IRQOUTN
LPUART_RX_3V3
PG8
R119 [N/A]
LPUART_TX
PG7
IRDA_RX
R158 [N/A]
GND
GND
65
43
21
JP15
Header 3X2