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: 2022/5/10 Sheet of
File: I:\办公2022\双通道5.9\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
R1
Res2
GND
VCC
S1
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
CS
1
WR
2
GND
3
DI3
4
DI2
5
DI1
6
DI0
7
VREF
8
RFB
9
GND
10
VCC
20
ILE
19
WR2
18
XFER
17
DI4
16
DI5
15
DI6
14
DI7
13
IOUT2
12
IOUT1
11
U2
DAC0832
VCC
GND
2
3
6
47
1
8
5
U3
Op Amp
VCC
GND
P36
P36
GND
P20
P21
P22
P23
P24
P25
P26
P27
1
2
P2
输出接口
GND
P27
P26
P25
P24
P23
P22
P21
P20
P32
1
2
3
4
5
6
7
8
9
RP1
RESP
BG VCC
15
DB7
14
DB6
13
DB5
12
DB4
11
DB3
10
DB2
9
DB1
8
DB0
7
E
6
RW
5
RS
4
VO
3
VCC
2
GND
1
BG GND
16
LCD1602
LCD1
GND
GND
P30
P31
P34
CS
1
WR
2
GND
3
DI3
4
DI2
5
DI1
6
DI0
7
VREF
8
RFB
9
GND
10
VCC
20
ILE
19
WR2
18
XFER
17
DI4
16
DI5
15
DI6
14
DI7
13
IOUT2
12
IOUT1
11
P5
DAC0832
VCC
GND
2
3
6
47
1
8
5
P4
Op Amp
VCC
GND
P36
P36
GND
P20
P21
P22
P23
P24
P25
P26
P27
1
2
P3
输出接口
GND
P33
S2
SW-PB
S3
SW-PB
S4
SW-PB
S5
SW-PB
S6
SW-PB
S7
SW-PB
S8
SW-PB
S9
SW-PB
S10
SW-PB
S11
SW-PB
S12
SW-PB
S13
SW-PB
S14
SW-PB
S15
SW-PB
S16
SW-PB
S17
SW-PB
P10
P11
P12
P13
P14
P15
P16
P17
