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: 2021/12/1 Sheet of
File: I:\办公2021下\室温12.1\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
1
2
3
4
5
6
7
8
9
RP1
RESP
S1
SW-PB
Q3
PNP
VCC
10K
R4
Res2
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
P30
P31
P32
Q4
PNP
10K
R5
Res2
Q5
PNP
10K
R6
Res2
Q6
PNP
10K
R7
Res2
P25
P24
P23
P22
P21
P20
P23
P22
P21
P20
W0
W1
W2
W3
W0
W1
W2
W3
Q2
PNP
VCC
10K
R3
Res2
P33
GND
P27
P26
A
B
C
D
E
F
G
DP
1
2
3
4
DS1
VCC
2
3
6
4 7
1
8
5
AR2
Op Amp
GND
2
3
6
47
1
8
5
AR1
Op Amp
VCC
GND
2
3
6
4 7
1
8
5
AR3
Op Amp
VCC
GND
10K
R10
Res2
10K
R11
Res2
10K
R12
Res2
10K
R13
Res2
GND
100
R15
Res2
100
R16
Res2
100
R14
Res2
GND
VCC
1
2
3
4
P5
PT100接口
LS1
Buzzer
26
IN0
27
IN1
28
IN2
1
IN3
2
IN4
3
IN5
4
IN6
5
IN7
25
ADD A
24
ADD B
23
ADD C
22
ALE
12
VREF+
16
VREF-
10
CLOCK
6
START
7
EOC
21
OUT1
20
OUT2
19
OUT3
18
OUT4
8
OUT5
15
OUT6
14
OUT7
17
OUT8
9
OE
U2
ADC0808
GND
VCC
P10
P11
P12
P13
P14
P15
P16
P17
P34
P35
P36
P37
P36