Cx51
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Transcript of Cx51
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X1
1
1
.
0
5
9
8
M
H
z
P1.0P1.1P1.2P1.3P1.4P1.5P1.6P1.7
P3.0P3.1P3.2P3.3P3.4P3.5P3.6P3.7
1 23 45 67 89 10
PORT-0
1 23 45 67 89 10
PORT-1
1 23 45 67 89 10
PORT-2
1 23 45 67 89 10
PORT-3P1.0 P1.1P1.2 P1.3P1.4 P1.5P1.6 P1.7
P3.0 P3.1P3.2 P3.3P3.4 P3.5
P3.6 P3.7
VCC
VCC
VCC
VCC
VCC
Q1R1
10K
R2
150
VCC
Q2R310K
R4
150
Q3R510K
R6150
Q4R7
10K
R8150
Q5R910K
R10
150
Q6R11
10K
R12
150
Q7R1310K
R14
150
LED0
LED1
LED2
LED3
LED4
LED5
LED6
Q8
DRV7
R1510K
R16150
LED7
1 23 45 67 89 10
LEDsLED0 LED1LED2 LED3LED4 LED5LED6 LED7
VCC
R17
150
R1810K
SW0
VLED VCC
SW0
R19150
R2010K
SW1
R21
150
R2210K
SW2
R23150
R2410K
SW3
R25150
R2610K
SW4
R27
150
R2810K
SW5
R29150
R3010K
SW6
R31150
R3210K
SW7
SW1
SW2
SW3
SW4
SW5
SW6
SW7
1 23 45 67 89 10
SWITCHES
VCC
SW0 SW1SW2 SW3SW4 SW5SW6 SW7
LED0
LED1
LED2
LED3
LED4
LED5
LED6
LED7
P2.0 P2.1P2.2 P2.3P2.4 P2.5P2.6 P2.7
P0.0 P0.1P0.2 P0.3P0.4 P0.5P0.6 P0.7
P0.0P0.1P0.2P0.3P0.4P0.5P0.6P0.7
P2.0P2.1P2.2P2.3P2.4P2.5P2.6P2.7
C1
22P
C2
22P
VCC
PSEN
RESET
A010A19A28A37A46A55A64A73A825A924A1021A1123A122A1326
I/O0 11I/O1 12I/O2 13I/O3 15I/O4 16I/O5 17I/O6 18I/O7 19
OE22CE20
WE27 GND 14
VCC 28A141
U3
IS62C256AL
OC1C11
1D21Q 19
2D32Q 18
3D43Q 17
4D54Q 16
5D65Q 15
6D76Q 14
7D87Q 13
8D98Q 12
U2
MC74H
C573
P0.0/AD0 43P0.1/AD1 42P0.2/AD2 41P0.3/AD3 40P0.4/AD4 39P0.5/AD5 38P0.6/AD6 37P0.7/AD7 36
EA 35
ALE/PROG 33
PSEN 32
P2.7/A15 31P2.6/A14 30P2.5/A13 29P2.4/A12 28P2.3/A11 27P2.2/A10 26P2.1/A9 25P2.0/A8 24
V
S
S
2
2
XTAL121
XTAL220
P3.0/RxD11P3.1/TxD13P3.2/INT014P3.3/INT115P3.4/T016P3.5/T117P3.6/WR18P3.7/RD19
P1.0/T22P1.1/T2EX/SS3P1.2/ECI4P1.3/CEX05P1.4/CEX16P1.5/CEX2/MISO7P1.6/CEX3/SCK8P1.7/CEX4/MOSI9
RESET10
V
C
C
4
4
U1
AT89C51XD2
ALE
ALE
VCC
C3
100n
C4 100nVCC
C5100n
P0.0P0.1P0.2P0.3P0.4P0.5P0.6P0.7
162738495
CN2
RS232 SPA
RE
162738495
CN1
RS232 CO
NTRO
L
C6 10u
C7
10u
C8
10u
C9
10u
C10
10u
C11
10u
C12
10u
C13
10u
VCC
VCC
C1+1
C1-3
C2+4
C2-5
VS+ 2
VS- 6
11
10
12
9
14
7
13
8
V
C
C
1
6
G
N
D
1
5
U4
MAX232
C1+1
C1-3
C2+4
C2-5
VS+ 2
VS- 6
11
10
12
9
14
7
13
8
V
C
C
1
6
G
N
D
1
5
U5
MAX232
C18 100n
C19
100n
RESET
PSEN
PSEN
P3.1 (TXD)
P3.0 (RXD)
R34 10K
VCC
1
3
2
4
~
~
B2
BRIDGE
1 1
2
2
33
U6
LM7805
VCC
1 1
2
2
33
U7
LM7805
VLED
R35150LED8
1 2 TXD
1 2 RXD
P3.1
P3.0 (RXD)
(TXD)
B1
BATT 9 - 15V
SW8
POWER
1
23 U8A
74HC00
SW9
RESET
VCC
C14
100n
Cx51Schematic Diagram