ST
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Do
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02
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56
Re
v 2
33
/3
Figur
e 1
3.
M
CU
STMicroelectronics
Title:
Number:
Rev:
Sheet of
B.2(PCB.SCH)
Date:
1/9/2012
C14
20pF
C15
20pF
R24
220
4
1
3
2
X3
MC306-G-06Q-32.768 (manufacturer JFVNY)
C16
6.8pF
C27
6.8pF
MB997
3
6
STM32F4DISCOVERY MCU
PB5
PB6
PB7
PA4
PA5
PA6
PA7
R31
10K
VDD
PA11
PA12
PA9
PA10
PB12
PB13
PB14
PB15
PB10
PB11
PB8
PA0
PB9
R22
0
PA1
PB1
PB2
PA15
PB3
PB0
PA3
PA13
PA14
PB4
PA2
PA8
BOOT0
MCO
PH1-OSC_OUT
PA13
PA14
PA15
PA12
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA11
NRST
PB12
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
PB10
PB11
PB13
PB14
PB15
R30
510
PC15
PC14
BOOT0
PH1
PH0
Must be close to the Crystal
R34
10K
VDD
PB2
BOOT1
SB19
SB18
SB14
SB13
C26
100nF
C24
100nF
C31
100nF
C30
100nF
C28
1uF
R32
510
R26
0
NRST
C21
100nF
MCO
1
2
X2
8MHz
Not Fitted
L1
fcm1608-0603
C23
1uF
VDD
R23
47
C25
100nF
C22
1uF
C34
100nF
C35
100nF
C29
100nF
C32
100nF
PE2
1
PE3
2
PE4
3
PE5
4
PE6
5
PC13
7
PC14
8
PC15
9
PH0
12
PH1
13
NRST
14
PC0
15
PC1
16
PC2
17
PC3
18
PA0
23
PA1
24
PA2
25
PA3
26
PA4
29
PA5
30
PA6
31
PA7
32
PC4
33
PC5
34
PB0
35
PB1
36
PB2
37
PE7
38
PE8
39
PE9
40
PE10
41
PE11
42
PE12
43
PE13
44
PE14
45
PE15
46
PB10
47
PB11
48
PB12
51
PB13
52
PB14
53
PB15
54
PD8
55
PD9
56
PD10
57
PD11
58
PD12
59
PD13
60
PD14
61
PD15
62
PC6
63
PC7
64
PC8
65
PC9
66
PA8
67
PA9
68
PA10
69
PA11
70
PA12
71
PA13
72
PA14
76
PA15
77
PC10
78
PC11
79
PC12
80
PD0
81
PD1
82
PD2
83
PD3
84
PD4
85
PD5
86
PD6
87
PD7
88
PB3
89
PB4
90
PB5
91
PB6
92
PB7
93
BOOT0
94
PB8
95
PB9
96
PE0
97
PE1
98
PDR_ON
99
U4A
STM32F407VGT6
VBAT
6
VSS4
27
VSS2
74
VSSA
20
VREF+
21
VDDA
22
VSS5
10
VCAP2
73
VDD3
100
VCAP1
49
VDD2
75
VDD1
50
VDD4
28
VDD12
19
VDD5
11
U4B
STM32F407VGT6
PC0
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PC8
PC9
PC10
PC11
PC12
PC13
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PC8
PC9
PC10
PC11
PC12
PC13
PE0
PE0
PE1
PE1
PE2
PE2
PE3
PE4
PE5
PE6
PE7
PE8
PE9
PE10
PE11
PE12
PE13
PE14
PE15
PE3
PE4
PE5
PE6
PE7
PE8
PE9
PE10
PE11
PE12
PE13
PE14
PE15
PD0
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PD8
PD9
PD10
PD11
PD12
PD13
PD14
PD15
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PD8
PD9
PD10
PD11
PD12
PD13
PD14
PD15
PC14-OSC32_IN
PC15-OSC32_OUT
R21
0
R27
0
R28
0
VDD
SB15
SB16
R25
0
Not Fitted
PH0-OSC_IN
R33
4.7K
VDD
R29
4.7K
PB6
PB9
C36
2.2uF
C33
2.2uF