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DS89C450-K00
P1-P3
P4-P6
P7-P9
P10-P12
P13-P13
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
AD
0
AD
1
AD
2
AD
3
AD
4
AD
5
AD
6
AD
7
A0
A1
A3
A5
A6
A7
A2
A4
P10
P11
P12
P13
P14
P15
P16
P17
V
C
C
3
A
D
[
7
.
.
0
]
n
R
D
ALE
n
PSEN
C
F
G
0
C
F
G
1
S
W
_
I
N
P
1
[
7
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0
]
A16
A17
nOE
A
[
7
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SW
_OUT
Si
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87
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C42
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DS
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Ev
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-
CP
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3
6
F
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A
u
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t
0
3
,
2
0
0
7
TP2
T
D
I
1
TP1
TCK
1
U
5
X
C9536
XL
GNDa
10
GNDb
23
GNDc
31
VCCINTa
21
VCCINTb
41
VCCIO
32
AD1
37
AD2
34
AD3
33
AD4
39
AD5
42
AD6
27
AD7
44
nRD
4
ALE
5
nPSEN
2
CFG0
22
CFG1
40
SW
_IN
25
P10
6
P11
19
P12
7
A1
1
A2
43
A3
24
A4
3
A5
8
A6
11
A7
14
A16
38
A17
35
nOE
29
SW
_OUT
20
P13
28
P14
18
P15
9
P16
13
P17
12
TCK
17
TDI
15
TDO
30
TMS
16
AD0
36
A0
26
TP6
G
N
D
1
TP5
T
MS
1
TP3
+3
V
1
TP4
TDO
1
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
V
C
C
5
V
C
C
5
A
D
[
7
.
.
0
]
A
[
7
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0
]
n
W
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A
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1
5
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8
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A16
nOE
A17
A
D
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7
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0
]
A
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7
..
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n
W
R
A
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1
5
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8
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A16
nOE
A17
Si
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D
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Friday, August 03, 2007
O
PTI
ON
AL
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ON
D R
AM
U
6
C
Y7
C
1
0
0
9
BN
-1
2VC
A0
12
A1
11
A2
10
A3
9
A4
8
A5
7
A6
6
A7
5
A8
27
A9
26
A10
23
A11
25
A12
4
A13
28
A14
3
A15
31
A16
2
VCC
32
D0
13
D1
14
D2
15
D3
17
D4
18
D5
19
D6
20
D7
21
nOE
24
nW
E
29
NC
1
nCE1
22
CE2
30
GND
16
U
7
C
Y7
C
1
0
0
9
BN
-1
2VC
A0
12
A1
11
A2
10
A3
9
A4
8
A5
7
A6
6
A7
5
A8
27
A9
26
A10
23
A11
25
A12
4
A13
28
A14
3
A15
31
A16
2
VCC
32
D0
13
D1
14
D2
15
D3
17
D4
18
D5
19
D6
20
D7
21
nOE
24
nW
E
29
NC
1
nCE1
22
CE2
30
GND
16
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
RTS0
CTS0
D
CD
0
DT
R0
D
S
R
0
RTS1
CTS1
D
CD
1
DT
R1
D
S
R
1
TX
1
_232
TX
0
_232
RX0
_2
32
RX1
_2
32
P17
P16
P15
P14
P13
P12
P11
P10
P10
P11
P12
P13
P14
P15
P16
P17
V
C
C
5
V
C
C
5
V
C
C
5
V
C
C
3
RX0
RX1
T
X
1
T
X
0
RX1
_2
32
TX
1_
232
nL
ED
P
1
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7
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A
5
6
F
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A
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0
3
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2
0
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7
SE
R
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L
PO
RT
0
L
OA
DE
R
SE
R
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L
PO
RT
1
10
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GM
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R
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LED
TU
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N
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PU
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PO
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1
L
IN
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U
9
74
AC
540
nOE1
1
nOE2
19
I0
2
I1
3
I2
4
I3
5
I4
6
I5
7
I6
8
I7
9
GND
10
VCC
20
nO0
18
nO1
17
nO2
16
nO3
15
nO4
14
nO5
13
nO6
12
nO7
11
U
11
MAX203ECW
P
VCC
7
T1OUT
5
T2OUT
18
R1IN
4
R2IN
19
C2+
12
C2b+
15
C2-
16
C2b-
11
T1IN
2
T2IN
1
R1OUT
3
R2OUT
20
C1+
13
C1-
14
V-
10
Vb-
17
V+
8
GNDa
6
GNDb
9
J
2
D
B9
RS2
32
F
EMA
LE
5
9
4
8
3
7
2
6
1
J
3
D
B9
RS2
32
F
EMA
LE
5
9
4
8
3
7
2
6
1
R
N
4
R
ES
IS
T
O
R
S
IP
-
33
0
OH
M
1
2
3
4
5
6
7
8
9
10
SW
5
SW
D
IP
-
8
R
N
3
R
ES
IS
T
O
R
S
IP
-
33
0
OH
M
1
2
3
4
5
6
7
8
9
10
R
5
6
80
O
hm
1
2
U
10
L
XB
10
X
X
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
P1-P3
P4-P6
P7-P9
P10-P12
P13-P13
DS89C450-K00
Mfr. #:
Buy DS89C450-K00
Manufacturer:
Maxim Integrated
Description:
Development Boards & Kits - 8051
Lifecycle:
New from this manufacturer.
Delivery:
DHL
FedEx
Ups
TNT
EMS
Payment:
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DS89C450-K00
