1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
Title
Number RevisionSize
A3
Date: 2021/8/15 Sheet of
File: E:\电路城（51单片机）\交通灯（左拐）\原理图\Sheet1.SchDocDrawn By:
P1.0
1
P1.1
2
P1.2
3
P1.3
4
P1.4
5
P1.5
6
P1.6
7
P1.7
8
RST
9
P3.0/RXD
10
P3.1/TXD
11
P3.2/INT0
12
P3.3/INT1
13
P3.4/T0
14
P3.5/T1
15
P3.6/WR
16
P3.7/RD
17
XTAL2
18
XTAL1
19
GND
20
P2.0
21
P2.1
22
P2.2
23
P2.3
24
P2.4
25
P2.5
26
P2.6
27
P2.7
28
PSEN
29
ALE/PROG
30
EA
31
P0.7
32
P0.6
33
P0.5
34
P0.4
35
P0.3
36
P0.2
37
P0.1
38
P0.0
39
VCC
40
U1
80511 2
Y1
XTAL
30pF
C2
Cap
10uF
C1
Cap Pol1
30pF
C3
Cap
10K
R33
Res2
GND
VCC
1
2
3
4
5
6
7
8
9
RP1
RESP
S1
SW-PB
D28
LED3
S2
SW-PB
S3
SW-PB
S4
SW-PB
P30
P31
P32
P33
P34
P35
P36
P37
P10
P11
P12
P13
P14
P15
P16
P17
Vin Vout
GND
7805
Volt Reg
0.1uF
C5
Cap
100uF
C4
Cap Pol1
0.1uF
C7
Cap
100uF
C6
Cap Pol1
1
2
P1
电源接口
GND
VCC
GND
P32
P33
P34
P00
P01
P02
P03
P04
P05
P06
P07
P23
P22
P21
P20
100
R28
Res2
D27
LED3
100
R27
Res2
D26
LED3
100
R26
Res2
D25
LED3
100
R25
Res2
D32
LED3
100
R32
Res2
D31
LED3
100
R31
Res2
D30
LED3
100
R30
Res2
D29
LED3
100
R29
Res2
VCC
D5
LED3
100
R5
Res2
D6
LED3
100
R6
Res2
D7
LED3
100
R7
Res2
D8
LED3
100
R8
Res2
D1
LED3
100
R1
Res2
D2
LED3
100
R2
Res2
D3
LED3
100
R3
Res2
D4
LED3
100
R4
Res2
VCC
P10
P11
P12
P13
P14
P15
P16
P17
P10
P12
P15
P13
P15
P12
P10
P16
D12
LED3
100
R12
Res2
D11
LED3
100
R11
Res2
D10
LED3
100
R10
Res2
D9
LED3
100
R9
Res2
D16
LED3
100
R16
Res2
D15
LED3
100
R15
Res2
D14
LED3
100
R14
Res2
D13
LED3
100
R13
Res2
VCC
P10
P12
P14
P15
P16
P17
P10
P12
D21
LED3
100
R21
Res2
D22
LED3
100
R22
Res2
D23
LED3
100
R23
Res2
D24
LED3
100
R24
Res2
D17
LED3
100
R17
Res2
D18
LED3
100
R18
Res2
D19
LED3
100
R19
Res2
D20
LED3
100
R20
Res2
VCC
P11
P13
P15
P13
P15
P12
P10
P16
A
B
C
D
E
F
G
DP
1
2
DS1
A
B
C
D
E
F
G
DP
1
2
DS2
A
B
C
D
E
F
G
DP
1
2
DS3
A
B
C
D
E
F
G
DP
1
2
DS4
P00
P01
P02
P03
P04
P05
P06
P07
P00
P01
P02
P03
P04
P05
P06
P07
P00
P01
P02
P03
P04
P05
P06
P07
P00
P01
P02
P03
P04
P05
P06
P07
P23
P22
P21
P20
P21
P20
P23
P22
PI001
PI002
PI003
PI004
PI005
PI006
PI007
PI008
PI009
CO
PI780501
PI780502
PI780503
PIC101
PIC102
PIC201
PIC202
PIC301
PIC302
PIC401
PIC402 PIC501
PIC502 PIC601
PIC602 PIC701
PIC702
PID?01PID?02
PIP101
PIP102
PIR101
PIR102
PIS101
PIS102
PIS201
PIS202
PIS301
PIS302
PIS401
PIS402
PIU?01
PIU?02
PIU?03
PIU?04
PIU?05
PIU?06
PIU?07
PIU?08
PIU?09
PIU?010
PIU?011
PIU?012
PIU?013
PIU?014
PIU?015
PIU?016
PIU?017
PIU?018
PIU?019
PIU?020
PIU?021
PIU?022
PIU?023
PIU?024
PIU?025
PIU?026
PIU?027
PIU?028
PIU?029
PIU?030
PIU?031
PIU?032
PIU?033
PIU?034
PIU?035
PIU?036
PIU?037
PIU?038
PIU?039
PIU?040
PIY101 PIY102
PI780502
PIC201
PIC301
PIC402 PIC501 PIC602 PIC701
PIP101
PIR101
PIS201
PIS301
PIS401
PIU?020
PI780501
PIC401 PIC502
PIP102
PIC102
PIR102
PIS101
PIU?09
PIC202
PIU?018
PIY101
PIC302
PIU?019
PIY102
PID?01PID?02
PIU?025
PIU?026
PIU?027
PIU?028
PIU?029
PIU?030
PI002
PIU?039
NL
PI003
PIU?038
NL
PI004
PIU?037
NL
PI005
PIU?036
NL
PI006
PIU?035
NL
PI007
PIU?034
NL
PI008
PIU?033
NL
PI009
PIU?032
NL
PIU?01
NL
PIU?02
NL
PIU?03
NL
PIU?04
PIU?021
NL
PIU?05
NL
PIU?06
NL
PIU?07
NL
PIU?08
NL
PIU?022
NL
PIU?023
NL
PIU?024
NL
PIU?010
NL
PIU?011
NL
PIS202
PIU?012
NL
PIS302
PIU?013
NL
PIS402
PIU?014
NL
PIU?015
NL
PIU?016
NL
PIU?017
NL
PI001
PI780503
PIC101
PIC601 PIC702
PIS102
PIU?031
PIU?040
