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STMicroelectronics Evaluation board for STM32L1 series - with STM32L152ZD MCU STM32L152D-EVAL STM32L152D-EVAL Data Sheet

Product codes
STM32L152D-EVAL
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Page of 42
UM01
018
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Figure 21.
RS-232 and IrDA 
1
1
2
2
3
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4
4
D
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C
C
B
B
A
A
STMicroelectronics
Title:
Number:
Rev:
Sheet              of
B.4(PCB.SCH)
Date:
9/7/2011
USART2/IrDA_TX
USART2/IrDA_CTS
SD
5
TxD
3
GND
8
Anode  (VCC2)
1
Cathode
2
RxD
4
VCC1
6
NC
7
U17
TFDU6300
R55
5
R60
47
C47
100nF
+3V3
C40
4.7uF
IrDA
1
2
3
JP9
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
U8
ST3241EBPR
C16
100nF
C19
100nF
C14
100nF
C15
100nF
C20
100nF
+3V3
1
6
2
7
3
8
4
9
5
CN2
DB9-male  USART2
+3V3
Bootloader_RESET
MB819
9
14
STM32L152-EVAL  RS232&IrDA
Bootloader_BOOT0
VCCA
1
A1
2
A2
3
GND
4
DIR
5
B2
6
B1
7
VCCB
8
U2
SN74LVC2T45DCUT
+3V3
VDD
VCCA
1
A1
2
A2
3
GND
4
DIR
5
B2
6
B1
7
VCCB
8
U4
SN74LVC2T45DCUT
+3V3
VDD
VDD
R19
0
R20
0
C9
100nF
C8
100nF
C4
100nF
C1
100nF
1
6
2
7
3
8
4
9
5
CN5
DB9-male  USART3
USART2_RTS
USART2_TXD
USART3_TXD
USART2_RXD
USART2_CTS
USART3_RXD
USART2_TXD
USART2_RXD
USART2_CTS
USART2_RTS
USART2_TXD
USART2/IrDA_RX
USART2/IrDA_RTS
USART3_TX
USART3_RX
RXD
RTS
TXD
CTS
RXD
TXD
R46
[N/A]
VCCA
1
A1
2
A2
3
GND
4
DIR
5
B2
6
B1
7
VCCB
8
U5
SN74LVC2T45DCUT
+3V3
VDD
VCCA
1
A1
2
A2
3
GND
4
DIR
5
B2
6
B1
7
VCCB
8
U3
SN74LVC2T45DCUT
+3V3
VDD
VDD
R11 0
C12
100nF
C10
100nF
C2
100nF
C3
100nF
USART3_RXD
USART3_TXD
1
2
3
JP5
IrDA_RXD
IrDA_RXD
PD5
PD3
PD6
PD4
PC10
PC11
R21
100K
R12
100K
R44
100K
VDD
VDD
DSR
C44
100nF
C48
4.7uF