1
1
2
2
3
3
4
4
D D
C C
B B
A A
Title
Number RevisionSize
A4
Date: 2021/8/10 Sheet of
File: E:\电路城（51单片机）\..\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
1
2
3
4
5
6
7
8
9
RP1
RESP
S1
SW-PB
Q3
PNP
VCC
10K
R?
Res2
S2
SW-PB
S3
SW-PB
S4
SW-PB
S5
SW-PB
S6
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
P35
P36
A
B
C
D
E
F
G
DP
1
2
3
4
5
6
DS1
Q4
PNP
10K
R?
Res2
Q5
PNP
10K
R?
Res2
Q6
PNP
10K
R?
Res2
Q7
PNP
10K
R?
Res2
Q8
PNP
10K
R?
Res2
P25
P24
P23
P22
P21
P20
P25
P24
P23
P22
P21
P20
W0
W1
W2
W3
W4
W5
W0
W1
W2
W3
W4
W5
Q2
PNP
VCC
10K
R3
Res2
P27
1
2
3
4
5
K2
Relay
GND
1
2
P4
散热器接口
P27
P26
Q1
PNP
VCC
10K
R2
Res2
P26
1
2
3
4
5
K1
Relay
GND
1
2
P3
加热器接口
VIN+
2
VIN-
3
VREF
1
CONV
5
SCK
7
SDO
6
U2
LTC1864
1
2
3
P2
Header 3
GND
VCC
P10
P11
P12
