SN74LV245ANS
U2
DIR
1
A1
2
A2
3
A3
4
A4
5
A5
6
A6
7
A7
8
A8
9
GND
10
B8
11
B7
12
B6
13
B5
14
B4
15
B3
16
B2
17
B1
18
OE#
19
VCC
20
ULN2803AG
U3
1B
1
2B
2
3B
3
4B
4
5B
5
6B
6
7B
7
8B
8
E
9
COM
10
8C
11
7C
12
6C
13
5C
14
4C
15
3C
16
2C
17
1C
18
A
B
C
D
E
F
G
DP
VCC
VCC
GND
GND
1K
R3
1K
R4
1K
R5
1K
R6
1K
R7
1K
R8
1K
R9
1K
R10
A A
B B
C C
D D
E E
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
TITLE:
Sheet_1
REV: 1.0
Date:
2022-03-12
Sheet:
1/1
Drawn By: kjdong
Company:
Your Company
GND
GND
VCCVCC
STM32F103RBT7
U1
VBAT
1
PC13-TAMPER-RTC
2
PC14-SOC32_IN
3
PC15-SOC32_OUT
4
PD0 OSC_IN
5
PD1 OSC_OUT
6
NRST
7
PC0
8
PC1
9
PC2
10
PC3
11
VSSA
12
VDDA
13
PA0-WKUP
14
PA1
15
PA2
16
PA3
17
VSS_4
18
VDD_4
19
PA4
20
PA5
21
PA6
22
PA7
23
PC4
24
PC5
25
PB0
26
PB1
27
PB2BOOT1
28
PB10
29
PB11
30
VSS_1
31
VDD_1
32
PB12
33
PB13
34
PB14
35
PB15
36
PC6
37
PC7
38
PC8
39
PC9
40
PA8
41
PA9
42
PA10
43
PA11
44
PA12
45
PA13
46
VSS_2
47
VDD_2
48
PA14
49
PA15
50
PC10
51
PC11
52
PC12
53
PD2
54
PB3
55
PB4
56
PB5
57
PB6
58
PB7
59
BOOT0
60
PB8
61
PB9
62
VSS_3
63
VDD_3
64
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
PA10
PA11
PA12
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PC8
PC9
PC10
PC11
PC12
PC13
PC14
PC15
PB0
PB1
BT1
PB5
PB6
PB7
PB8
PB9
PB12
PB13
PB14
PB15
PB10
PB11
GND
VCC
VCC
GND
GND
OSC32_IN
OSC32_OUT
OSC_IN
OSC_OUT
OSC_IN
OSC_OUT
VCC
VCC
JTDO B3
JTCK A14
JTMS A13
JTDI A15
TRST PB4
NRST
PB4
PB3
PA4PA3
PB2
PA13
VCC
GND
NRST
VBAT
PA15
PA14
PC15
PC14
PA8
PA5
PA7
PA6
PC5
PC4
PB1
PB0
PB15PB14
PB13PB12
PB11
PB10
PC9PC8
PC7PC6
PA12
PA11
PA10
PA9
PA2
PA1
PA0
PC3
PC2
PC1
PC0
PC13
PB9
PB8
PB7
PB6
PB5
PD2
PC12
PC11
PC10
VCC
GND
GND
BT1
BT0
USB TXD
USB RXD
USB D-
USB D+
USB TXD
USB RXD
10kΩ
R28
VCC
BT0
GND
VCC
22pF
C4
22pF
C5
10pF
C8
10pF
C11
22pF
C12
22pF
C13
HDR-F-2.54_1x8
H5
1
2
3
4
5
6
7
8
GND
VCC
GND
VCC
V1
V2
V3
V4
V5
V6
V7
V8
292304-2
USB2
VCC
1
D-
2
D+
3
GND
4
USB-B
5
5
VCC
VCC
GND
+5V
GND
USB D-
USB D+
TRST PB4
JTDI A15
JTCK A14
JTMS A13
JTDO B3
JTMS A13
JTCK A14
NRST
SN74LV245ANS
U4
DIR
1
A1
2
A2
3
A3
4
A4
5
A5
6
A6
7
A7
8
A8
9
GND
10
B8
11
B7
12
B6
13
B5
14
B4
15
B3
16
B2
17
B1
18
OE#
19
VCC
20
GND
GND
10uF
C17
10uF
C18
+5V
AMS1117-3.3V
U5
ADJ/GND
1
VOUT
2
VIN
3
VOUT
4
VCC
GND
100nF
C14
100nF
C15
100nF
C16
1MΩ
R15
1KR16
1KR17
1KR18
GND
GND
VCC
A
B
C
D
E
F
G
DPDP
V1
V2
V3
V4
B
B
V8
V7
V6
V5
DP DP
G
F
E
D
C
B
A
PA12
PA11
PA8
PC9
PC6
PC7
PC8
PB15
GND
PC5
PB0
PB1
PB10
PB11
PB12
PB13
PB14
PC4
PA7
PA6
32.768kHz
X4
10kΩ
R31
10kΩ
R32
VCC
PA5 PA4 PA3
VCC
GND
GND
VCCVCCVCC
VCC
GND
VCC
VCC
PA2
PA1 PA0
PB7
PB8
PB9
PC13
PC0
PC1
PC2
PB5
PB6
VCC
VCC
GNDGNDGND
VCC
VCC
PD2
GND
PC10
PC11 PC3
PC12
GND
GND
QMB
BUZZER1
1
2
FMB
BUZZER2
1
2
PC5
PB0
PB1
PB10
PB11
PB12
HDR
J1
1 2
3 4
5 6
7 8
9 10
GND
Header
H2
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
Header
H3
1 2
3 4
5 6
7 8
9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
29 30
300S-20P
P10
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
HDR
J4
1
2
3
4
HDR
J5
1
2
3
4
5
6
7
8
9
10
1K
R40
GND
VCC
CH340G
U6
GND
1
TXD
15
RXD
14
V3
13
D+
12
D-
11
XI
10
XO
9
CTS
8
DSR
7
RI
6
DCD
5
DTR
4
RTS
3
R232
2
VCC
16
GND
VCC
SR420361N
LED1
E
1
D
2
DP
3
C
4
G
5
DIG4
6
B
7
DIG3
8
DIG2
9
F
10
A
11
DIG1
12
SR420361N
LED2
E
1
D
2
DP
3
C
4
G
5
DIG4
6
B
7
DIG3
8
DIG2
9
F
10
A
11
DIG1
12
HDR
J3
1
2
3
4
VCC
HDR
J2
1
2
3
4
VCC
8MHz
X1
X5
47ΩR19
47ΩR20
47ΩR21
47ΩR22
47ΩR23
47ΩR24
47ΩR26
47ΩR30
M7
D1
8050
Q1
8050
Q2
1K
R34
1KR35
FCLED12
FC LED3
FC LED4
FC LED5
FC
LED6
FC
LED7
FC
LED8
FC LED9
FC
LED10
10kΩR25
10kΩ
R27
10kΩ
R29
10kΩ
R36
10kΩ
R41
10kΩ
R1
10kΩ
R2
10kΩ
R11
10kΩ
R12
10kΩ
R13
10kΩ
R14
10kΩ
R33
10kΩ
R37
10kΩ
R38
100nF
C1
100nF
C2
100nF
C3
100nF
C6
100nF
C7
100nF
C19
100nF
C20
100nF
C21
100nF
C22
100nF
C24
100nF
C25
100nF
C9
100nF
C10
K4
KEY1
1
2
3
4
K4
KEY2
1
2
3
4
K4
KEY3
1
2
3
4
K4
KEY4
1
2
3
4
K4
KEY5
1
2
3
4
K4
KEY6
1
2
3
4
K4
KEY7
1
2
3
4
K4
KEY8
1
2
3
4
K4
KEY9
1
2
3
4
K4
KEY10
1
2
3
4
K4
KEY11
1
2
3
4
GND
GND
VCC
控制器及外围器件
人机对话模块
无源蜂鸣器
有源蜂鸣器
串行通信、AD转换器接口
电源电路、发光二极管、滤波电容等
VCC
