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: 2021/6/8 Sheet of
File: E:\电路城\..\Sheet1.SchDoc Drawn 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
Vin Vout
GND
VR?
Volt Reg
30pF
C2
Cap
10uF
C1
Cap Pol1
30pF
C3
Cap
10K
R1
Res2
0.1uF
C5
Cap
100uF
C4
Cap Pol1
0.1uF
C7
Cap
100uF
C6
Cap Pol1
1
2
P?
电源接口
GND
GND
VCC
VCC
15
A
14
D7
13
D6
12
D5
11
D4
10
D3
9
D2
8
D1
7
D0
6
E
5
RW
4
RS
3
V0
2
VCC
1
GND
16
K
LCD1602
LCD1
1
2
3
4
5
6
7
8
9
RP1
RESP
S1
SW-PB
GND
D1
LED3
10K
R2
Res2
D2
LED3
10K
R3
Res2
D3
LED3
10K
R4
Res2
P22
P21
P20
D4
LED3
10K
R5
Res2
D5
LED3
10K
R6
Res2
D6
LED3
10K
R7
Res2
VCC
P27
P26
P25
D7
LED3
10K
R8
Res2
D8
LED3
10K
R9
Res2
D9
LED3
10K
R10
Res2
VCC
P27
P26
P25
D10
LED3
10K
R11
Res2
D11
LED3
10K
R12
Res2
D12
LED3
10K
R13
Res2
VCC
P22
P21
P20
VCC
P27
P26
P25
P22
P21
P20
