XTAL2
18
XTAL1
19
ALE
30
EA
31
PSEN
29
RST
9
P0.0/AD0
39
P0.1/AD1
38
P0.2/AD2
37
P0.3/AD3
36
P0.4/AD4
35
P0.5/AD5
34
P0.6/AD6
33
P0.7/AD7
32
P1.0
1
P1.1
2
P1.2
3
P1.3
4
P1.4
5
P1.5
6
P1.6
7
P1.7
8
P3.0/RXD
10
P3.1/TXD
11
P3.2/INT0
12
P3.3/INT1
13
P3.4/T0
14
P3.7/RD
17
P3.6/WR
16
P3.5/T1
15
P2.7/A15
28
P2.0/A8
21
P2.1/A9
22
P2.2/A10
23
P2.3/A11
24
P2.4/A12
25
P2.5/A13
26
P2.6/A14
27
U1
AT89C51
X1
CRYSTAL
C1
1uF
R1
10k
C2
22pF
C3
22pF
Q1
PNP
R2
1k
2
3
4
5
6
7
8
9
1
RP1
RESPACK-8
1 2 3
4 5 6 7
8
9
ζȼÓ
ζȼõ
È·ÈÏ
RL1
G2R-14-DC5
D1
LED-RED
R3
100
D7
14
D6
13
D5
12
D4
11
D3
10
D2
9
D1
8
D0
7
E
6
RW
5
RS
4
VSS
1
VDD
2
VEE
3
LCD1
LM016L
D7
14
D6
13
D5
12
D4
11
D3
10
D2
9
D1
8
D0
7
E
6
RW
5
RS
4
VSS
1
VDD
2
VEE
3
LCD2
LM016L
ÈÕÆÚ
ʱ¼ä
ζÈ
·§Öµ
²éѯºÅ
ζÈ
±£´æʱ¼ä
¿ªÆôʱ³¤
48.0
DQ
2
VCC
3
GND
1
U2
DS18B20
SCL
6
SDA
5
WP
7
A0
1
A2
3
A1
2
U3
FM24C64
´æ´¢
ζÈ
·§ÃÅ
RST
5
SCLK
7
I/O
6
X1
2
X2
3
VCC1
8
VCC2
1
U4
DS1302
X2
CRYSTAL
0
