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
10uF
R1
10k
C2
30pF
C3
30pF
Q1
PNP
R2
1k
2
3
4
5
6
7
8
9
1
RP1
RESPACK-8
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
BUZ1
BUZZER
²éѯ
ÉèÖÃ
¼Ó
¼õ
Q0
15
Q1
1
Q2
2
Q3
3
Q4
4
Q5
5
Q6
6
Q7
7
Q7'
9
SH_CP
11
ST_CP
12
DS
14
MR
10
OE
13
U2
74HC595
Q0
15
Q1
1
Q2
2
Q3
3
Q4
4
Q5
5
Q6
6
Q7
7
Q7'
9
SH_CP
11
ST_CP
12
DS
14
MR
10
OE
13
U3
74HC595
D1
LED-RED
R3
100
D2
LED-RED
R4
100
D3
LED-RED
R5
100
D4
LED-RED
R6
100
D5
LED-RED
R7
100
D6
LED-RED
R8
100
D7
LED-RED
R9
100
D8
LED-RED
R10
100
D9
LED-RED
R11
100
D10
LED-RED
R12
100
D11
LED-RED
R13
100
D12
LED-RED
R14
100
D13
LED-RED
R15
100
D14
LED-RED
R16
100
D15
LED-RED
R17
100
D16
LED-RED
R18
100
1 2
3 4
5 6 7 8
9 10 11 12
13 14 15 16
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16·¶¨Ê±Æ÷Êä³ö
RST
5
SCLK
7
I/O
6
X1
2
X2
3
VCC1
8
VCC2
1
U4
DS1302
X2
CRYSTAL
12345678
910
11
12
13
1415
16