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: 2022/4/29 Sheet of
File: I:\办公2022\交通灯4.28\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
D29
LED3
100
R29
Res2
VCC
D5
LED3
100
R5
Res2
D6
LED3
100
R6
Res2
D3
LED3
100
R3
Res2
D4
LED3
100
R4
Res2
VCC
P11
P14
P15
P16
P12
P10
P16
D12
LED3
100
R12
Res2
D11
LED3
100
R11
Res2
D14
LED3
100
R14
Res2
D13
LED3
100
R13
Res2
VCC
P26
P25
P24
P27
S5
SW-PB
S6
SW-PB
P30
P31
P27
P26
P25
P24
A
B
C
D
E
F
G
DP
1
2
DS2
A
B
C
D
E
F
G
DP
1
2
DS1
A
B
C
D
E
F
G
DP
1
2
DS4
A
B
C
D
E
F
G
DP
1
2
3
4
DS3
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
Y4
Y5
Y6
Y7
Y0
Y1
Y2
Y3
Y8
Y4
Y5
Y6
Y7
Y0
Y1
Y2
Y3
Y8
SH_CP
11
DS
14
ST_CP
12
MR
10
OE
13
Q0
15
Q1
1
Q2
2
Q3
3
Q4
4
Q5
5
Q6
6
Q7
7
Q7‘
9
U2
74595
SH_CP
11
DS
14
ST_CP
12
MR
10
OE
13
Q0
15
Q1
1
Q2
2
Q3
3
Q4
4
Q5
5
Q6
6
Q7
7
Q7‘
9
U3
74595
GND
GND
VCC
VCC
P22
P21
P20
P22
P20