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: 2021/6/30 Sheet of
File: I:\办公2021下\串口通信6.30\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
U2
80511 2
Y2
XTAL
30pF
C2
Cap
10uF
C1
Cap Pol1
30pF
C3
Cap
10K
R2
Res2
GND
VCC
1
2
3
4
5
6
7
8
9
RP1
RESP
S3
SW-PB
RXD
TXD
CS1
1
CS2
2
GND
3
VCC
4
V0
5
RS
6
RW
7
E
8
DB0
9
DB1
10
DB2
11
DB3
12
DB4
13
DB5
14
DB6
15
DB7
16
RST
17
-Vout
18
LCD
1K
R1
RPot
GND
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
C4
Cap
10uF
C6
Cap Pol1
30pF
C5
Cap
10K
R3
Res2
GND
VCC
S2
SW-PB
P30
P31
DCD
1
DSR
6
RXD
2
RTS
7
TXD
3
CTS
8
DTR
4
RI
9
U3
COM
P30
P31
T1IN
11
R1OUT
12
T2IN
10
R2OUT
9
R2IN
8
T2OUT
7
R1IN
13
T1OUT
14
C1+
1
C1-
3
C2+
4
C2-
5
U4
MAX232
0.1uF
C10
Cap
0.1uF
C9
Cap
T1IN
11
R1OUT
12
T2IN
10
R2OUT
9
R2IN
8
T2OUT
7
R1IN
13
T1OUT
14
C1+
1
C1-
3
C2+
4
C2-
5
U5
MAX232
0.1uF
C7
Cap
0.1uF
C8
Cap
P30
P31 RXD
TXD
S1
SW-PB
GND
PI001
PI002
PI003
PI004
PI006
PI007
PI008
PI009
CO
PI001PI002
PI003PI004
PI005PI006
PI007
PI008PI009
PI0010
PI0011
PI0012PI0013
PI0014
PI0015PI0016PI0017PI0018
PI001
PI002
PI003
PI004
PI005
PI006
PI007
PI008
PI009
PIC?01
PIC?02
PIC?01
PIC?02
PIC?01
PIC?02
PIC?01
PIC?02
PIC?01
PIC?02
PIC?01
PIC?02
PIR?01
PIR?02
PIR?01
PIR?02
PIR?03
PIR?01
PIR?02
PIS?01
PIS?02
PIS?01
PIS?02
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
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
PIY101PIY102
PI003
PIC?01
PIR?01
PIU?020
PI001
PI005
PIU?036
PI002
PIU?039
PI006
PIU?035
PI003
PIU?038
PI004
PIU?037
PI005
PIR?02
PI006
PI007
PIU?034
PI007
PI008
PIU?033
PI008
PI009
PIU?032
PI009
PIU?021
PI0010
PIU?022
PI0011
PIU?023
PI0012
PIU?024
PI0013
PIU?025
PI0014
PIU?026
PI0015
PIU?027
PI0016
PIU?028
PI0018
PIR?03
PIC?02
PIU?019
PIY102
PIU?018
PIY101
PIR?02
PIS?01
PIU?09
PIU?01
PIU?02
PIU?03
PIU?04
PIU?05
PIU?06
PIU?07
PIU?08
PIU?012
PIU?013
PIU?014
PIU?015
PIU?016
PIU?017PIU?021
PIU?022
PIU?023
PIU?024
PIU?025
PIU?026
PIU?027
PIU?028
PIU?029
PIU?030
PIU?032
PIU?033
PIU?034
PIU?035
PIU?036
PIU?037
PIU?038
PIU?039
PI002
PIU?010
NL
PI003
PIU?011
NL
PIU?010
NL
PI001
PI004
PI0017
PIC?01
PIR?01
PIS?02
PIU?031
PIU?040
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