1
2
3
4
5
6
7
8
A
B
C
D
8
7
6
5
4
3
2
1
D
C
B
A
Title
Number
Revision
Size
A3
Date:
14-Oct-2006
Sheet of
File:
E:\bonson\project.Ddb
Drawn By:
C1
104
C2
104
E1
470uF/25V
E2
470uF/16V
VCC
LED
R2.5
R1
1K
100mA
500mA
1
2
3
J1
DC5V
S1
S600
Vin
1
G
N
D
2
Vout
3
U1
LM1117-3.3V
R16
510
R19
510
TXD0
LED
STATUS
LED
R15
510
RXD0
LED
1
2
3
IC4A
7404
4
5
6
IC4B
7404
1
2
3
IC4A
7404
STA
RXD
TXD
Y1
11.0592
C7
22P
C8
22P
VCC
RESET
RXD
TXD
STA
SDA
VCC
BP1
BUZZER
Q4
9013
R11
4.7K
R10
300
P16
P00
P01
P02
P03
P04
P05
P06
P07
KEY1
KEY2
KEY3
KEY4
C3
104
C4
104
C5
104
C6
104
VCC
CPU模块
电 源 模 块
指 示 灯 模 块
E3
10uF/16V
R2
10K
VCC
RESET
P20
1
P21
2
KBIO/CMP2/P00
3
P17
4
P16
5
P15/RST
6
VSS
7
X
1/
P
31
8
C
L
K
O
U
T
/X
2/
P3
0
9
INT1/P14
10
SDA/INT0/P13
11
SCL/T0/P12
12
P22/MOSI
13
P23/MISO
14
P24/SS
15
P25/SPIClk
16
RXD/P11
17
TXD/P10
18
KBI7/T1/P07
19
KBI6/CMP1/P06
20
VDD
21
KBI5/CmpRef/P05
22
KBI4/CIN1A/P04
23
KBI3/CIN1B/P03
24
KBI2/CIN2A/P02
25
KBI1/CIN2b/P01
26
P26
27
P27
28
U7
P89LPC930
P20
P21
P22
P23
P24
P25
P26
P27
P16
P17
1
2
3
J2
CON3
RXD
TXD
GND
P00
P01
P02
P03
11
12
13
IC4D
7404
1
2
J3
CON2
P17
键 盘 输 入 模 块
1
2
3
4
5
6
7
8
9
10
1
1
12
1
3
1
4
1
5
1
6
17
1
8
J?
CON18
VCC
P0
0
P0
1
P0
2
P0
3
P0
4
P0
5
P0
6
P0
7
P2
0
P2
1
P2
2
P2
3
P2
4
P2
5
P2
6
P2
7
输 出 模 块