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UM1817 数据表(PDF) 49 Page - STMicroelectronics

部件名 UM1817
功能描述  Evaluation board with STM32F091VC MCU
PDF  58 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

UM1817 数据表(HTML) 49 Page - STMicroelectronics

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Figure 29. STM32091C-EVAL RS-232, RS-485 and IrDA
814
RS232 & RS485 & IrDA
MB1169
B.1
7/25/2014
Title:
Size:
Reference:
Date:
Sheet:
of
A4
Revision:
STM32091C-EVAL
Project:
SD
5
TxD
3
GND
8
Anode (VCC2)
1
Cathode
2
RxD
4
VCC1
6
Vlogic
7
U14
TFDU6300
+3V3
C45
4.7uF
C41
4.7uF
IrDA
1
6
2
7
3
8
4
9
5
CN9
DB9-male USART2
USART1_RX_3V3
connector for USART2 & RS485
R72
10K
R76 22K
R84 22K
SB15
SB18
R79
120
C40
100nF
SB19
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
U7
ST3241EBPR
C23
100nF
C21
100nF
C26
100nF
C22
100nF
C20
100nF
+3V3
+3V3
RXD
RTS
TXD
CTS
DSR
6
5
4
3
2
1
JP13
Header 3X2
R88
0
USART1_CTS_3V3
PA11
SB16
R80
5.1
R89
47
RO
1
RE
2
DE
3
DI
4
GND
5
A
6
B
7
Vcc
8
U12
ST3485EBDR
+3V3
PA10
USART1_RTS_3V3
USART1_RTS
PA12
VCCA
1
A1
2
A2
3
GND
4
DIR
5
B2
6
B1
7
VCCB
8
U5
SN74LVC2T45DCUT
+3V3
VDD_IO2
C13
100nF
C14
100nF
R49
100K
R53
100K
VDD_IO2
USART1_TX
PA9
USART1_TX_3V3
USART1_TX_3V3
USART1_RTS_3V3
USART1_RTS_3V3
RS485_DIR
RS485_DIR
R68
0
R52
0
R50
0
C47
100nF
C46
100nF
VDD_IO2



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