1
1
2
2
3
3
4
4
D D
C C
B B
A A
VBus
1
D-
2
D+
3
GND
4
GND
5
GND
6
J1
USB-A
V3
4
UD+
5
UD-
6
GND
1
TXD
2
RXD
3
RTS#
14
DTR#
13
RI#
11
DSR#
10
CTS#
9
XO
8
XI
7
VCC
16
R232
15
DCD#
12
U1
CH340GGND
P1
12M
D2
D1
GND
P3.1
C1
GND
C3
22pF
C2
22pF
GND
P3.0
2
1
3
5
6
4
S1
SW DPDT
+
1
2
3
J2
DC-005
V-In
1
Gnd
2
V-Out
3
U3
L7805
C5
0.33uF
C4
22uF
C6
0.1uF
C7
10uF
D3
P3
LED
R1
1K
VCC
VCC
VCC
GND
P4
LED
R2
1K
VCC
P5
LED
R3
1K
VCC
P3.0
P3.1
D4
铜柱电源模块
1
P6
1
P7
1
P8
1
P9
VCC
40
P00
39
P01
38
P02
37
P03
36
P04
35
P05
34
P06
33
P07
32
EA/VPP
31
ALE/PROG
30
PSEN
29
P27
28
P26
27
P25
26
P24
25
P23
24
P22
23
P21
22
P20
21
P10
1
P11
2
P12
3
P13
4
P14
5
P15
6
P16
7
P17
8
RST
9
P30/RXD
10
P31/TXD
11
P32/INT0
12
P33/INT1
13
P34/T0
14
P35/T1
15
P36/WR
16
P37/RD
17
XTAL2
18
XTAL1
19
GND
20
U5
STC8951
3 2
1 4
RESET
C8 10uF
R4
1k
VCC
RST
P11
12M
C9
22pF
C10
22pF
XTAL1
XTAL2
XTAL1
XTAL2
P3.0
P3.1
RST
GND
VCC
GND
复位/震荡
3
2
1
Q1
PNP
1
2
P12
Header 2
P3.6
P3.6
Z1
Beep
VCC
GND
蜂鸣器 STC89C52
VCC2
1
X1
2
X2
3
GND
4
RST
5
I/O
6
SCLK
7
VCC1
8
U2
DS1302S
VCC
12
B1
GND
GND
DS1302
f
9
g
10
e
1
d
2
A
3
c
4
DP
5
b
6
a
7
A
8
7段数码管
DS1
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
VCC
1
2
3
P2
Header 3
VCC
GND
GND
1
VCC
2
V0
3
RS
4
R/W
5
EN
6
DB0
7
DB1
8
DB2
9
DB3
10
DB4
11
DB5
12
DB6
13
DB7
14
PSB
15
NC
16
RST
17
VOUT
18
BLA
19
BLK
20
U4 液晶HB240128M3A
10KR5
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
P0.6
P0.5
P0.4
VCC
GND
P0.7
VCC
数码管
LCD12864
1
2
3
4
5
6
7
8
9
P10
排阻
VCC
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
VCC
GND
基于单片机的智能电子贺卡设计
X1
32.768KHz
P3.2
P3.3
P3.4
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
3 2
1 4
KEY1
3 2
1 4
KEY2
3 2
1 4
KEY3
GND
P3.2
P3.3
P3.4
P2.2
P2.1
P2.0
GND
PIB101
PIB102
COB1
PIC101
PIC102
COC1
PIC201
PIC202
COC2
PIC301
PIC302
COC3
PIC401
PIC402
COC4
PIC501
PIC502
COC5
PIC601
PIC602
COC6
PIC701
PIC702
COC7
PIC801
PIC802
COC8
PIC901
PIC902
COC9
PIC1001
PIC1002
COC10
PID101
PID102
COD1
PID201
PID202
COD2
PID301
PID302
COD3
PID401
PID402
COD4
PIDS101
PIDS102
PIDS103
PIDS104
PIDS105
PIDS106
PIDS107
PIDS108
PIDS109
PIDS1010
CODS1
PIJ101
PIJ102
PIJ103
PIJ104
PIJ105
PIJ106
COJ1
PIJ201
PIJ202
PIJ203
COJ2
PIKEY101
PIKEY102
PIKEY103
PIKEY104
COKEY1
PIKEY201
PIKEY202
PIKEY203
PIKEY204
COKEY2
PIKEY301
PIKEY302
PIKEY303
PIKEY304
COKEY3
PIP101
PIP102
COP1
PIP201
PIP202
PIP203
COP2
PIP301
PIP302
COP3
PIP401
PIP402
COP4
PIP501
PIP502
COP5
PIP601
COP6
PIP701
COP7
PIP801
COP8
PIP901
COP9
PIP1001
PIP1002
PIP1003
PIP1004
PIP1005
PIP1006
PIP1007
PIP1008
PIP1009
COP10
PIP1101
PIP1102
COP11
PIP1201
PIP1202
COP12
PIQ101
PIQ102
PIQ103
COQ1
PIR101
PIR102
COR1
PIR201
PIR202
COR2
PIR301
PIR302
COR3
PIR401
PIR402
COR4
PIR501
PIR502
PIR503
COR5
PIRESET01
PIRESET02
PIRESET03
PIRESET04
CORESET
PIS101
PIS102
PIS103
PIS104
PIS105
PIS106
COS1
PIU101
PIU102
PIU103
PIU104
PIU105
PIU106
PIU107
PIU108
PIU109
PIU1010
PIU1011
PIU1012
PIU1013
PIU1014
PIU1015
PIU1016
COU1
PIU201
PIU202
PIU203
PIU204
PIU205
PIU206
PIU207
PIU208
COU2
PIU301
PIU302
PIU303
COU3
PIU401
PIU402
PIU403
PIU404
PIU405
PIU406
PIU407
PIU408
PIU409
PIU4010
PIU4011
PIU4012
PIU4013
PIU4014
PIU4015
PIU4016
PIU4017
PIU4018
PIU4019
PIU4020
COU4
PIU501
PIU502
PIU503
PIU504
PIU505
PIU506
PIU507
PIU508
PIU509
PIU5010
PIU5011
PIU5012
PIU5013
PIU5014
PIU5015
PIU5016
PIU5017
PIU5018
PIU5019
PIU5020
PIU5021
PIU5022
PIU5023
PIU5024
PIU5025
PIU5026
PIU5027
PIU5028
PIU5029
PIU5030
PIU5031
PIU5032
PIU5033
PIU5034
PIU5035
PIU5036
PIU5037
PIU5038
PIU5039
PIU5040
COU5
PIX101
PIX102
COX1
PIZ101
PIZ102
COZ1
PIB102
PIC101
PIC202
PIC302
PIC402
PIC502
PIC601
PIC702
PIC901
PIC1001
PIJ104
PIJ105
PIJ106
PIJ202
PIJ203
PIKEY102
PIKEY104
PIKEY202
PIKEY204
PIKEY302
PIKEY304
PIP203
PIP302
PIQ103
PIR401
PIR502
PIU101
PIU204
PIU302
PIU401
PIU4020
PIU5020
NLGND
PIB101
PIU208
PIC102
PIU104
PIC201
PIP101
PIU107
PIC301
PIP102
PIU108
PIC401
PIC501
PID302
PIJ201
PIU301
PIC602
PIC701
PID301
PID401
PIU303
PID101
PIJ101
PID102
PIS102
PIU1016
PID202
PIU102
PID402
PIS105
PIDS103
PIDS108
PIP202
PIJ102
PIU106
PIJ103
PIU105
PIP301
PIR101
PIP401
PIR201
PIP501
PIR301
PIP601
PIP701
PIP801
PIP901
PIP1201
PIQ102
PIQ101
PIZ102
PIR503
PIU403
PIS103
PIS104
PIU109
PIU1010
PIU1011
PIU1012
PIU1013
PIU1014
PIU1015
PIU202
PIX101
PIU203
PIX102
PIU4016
PIU4018
PIU5015
PIU5017
PIU5029
PIU5030
PIP1002
PIU5039
NLP000
PIP1003
PIU5038
NLP001
PIP1004
PIU5037
NLP002
PIP1005
PIU5036
NLP003
PIP1006
PIU404
PIU5035
NLP004
PIP1007
PIU405
PIU5034
NLP005
PIP1008
PIU406
PIU5033
NLP006
PIP1009
PIU4015
PIU5032
NLP007
PIDS107
PIU501
NLP100
PIDS106
PIU502
NLP101
PIDS104
PIU503
NLP102
PIDS102
PIU504
NLP103
PIDS101
PIU505
NLP104
PIDS109
PIU506
NLP105
PIDS1010
PIU507
NLP106
PIDS105
PIU508
NLP107
PIU205
PIU407
PIU5021
NLP200
PIU206
PIU408
PIU5022
NLP201
PIU207
PIU409
PIU5023
NLP202
PIU4010
PIU5024
NLP203
PIU4011
PIU5025
NLP204
PIU4012
PIU5026
NLP205
PIU4013
PIU5027
NLP206
PIU4014
PIU5028
NLP207
PID201
PIP402
PIU5010
NLP300
PIP502
PIU103
PIU5011
NLP301
PIKEY101
PIKEY103
PIU5012
NLP302
PIKEY201
PIKEY203
PIU5013
NLP303
PIKEY301
PIKEY303
PIU5014
NLP304
PIP1202
PIU5016
NLP306
PIC802
PIR402
PIRESET02
PIRESET04
PIU509
NLRST
PIC801
PIP201
PIP1001
PIR102
PIR202
PIR302
PIR501
PIRESET01
PIRESET03
PIS101
PIS106
PIU201
PIU402
PIU4017
PIU4019
PIU5031
PIU5040
PIZ101
NLVCC
PIC902
PIP1101
PIU5019
NLXTAL1
PIC1002
PIP1102
PIU5018
NLXTAL2
