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Figure 4-3. AT89STK-06 Board Schematics (1 of 4)
AT89STK-06 Demo Board User Guide
Appendix C: Board Schematics
XTAL2
47
XTAL1
48
C
VC
49
C
VC
50
TESTI
51
VSS
52
ESET
R
1
D
N
VAG
2
EF
VAR
3
T2
0/
AN
0/
P1.
4
0
P1.
T2EX
1/
AN
1/
P1.
5
1
P1.
I
EC
2/
AN
2/
P1.
6
2
P1.
EX0
C
3/
AN
3/
P1.
7
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
P1.
A8
SO
I
M
2/
P4.
33
A9
1/
P2.
32
A9
A10
2/
P2.
31
A10
A11
3/
P2.
30
A11
A12
4/
P2.
29
A12
A13
5/
P2.
28
A13
C
N
27
A14
6/
P2.
26
A14
A15
7/
P2.
25
A15
C
xD
R
1/
P4.
24
C
TxD
0/
P4.
23
D
R
7/
P3.
22
R
W
6/
P3.
21
A16
5
P3.
4
P3.
3
P3.
2
P3.
1
P3.
0
P3.
XTAL2
40
XTAL1
41
C
VC
42
VSS
43
ESET
R
44
D
N
VAG
1
EF
VAR
2
T2
0/
AN
0/
P1.
3
T2EX
1/
AN
1/
P1.
4
I
EC
2/
AN
2/
P1.
5
EX0
C
3/
AN
3/
P1.
6
Appendix C: Board Schematics
A8
A9
1/
P2.
28
A9
A10
2/
P2.
27
A10
A11
3/
P2.
26
A11
A12
4/
P2.
25
A12
A13
5/
P2.
24
A13
A14
6/
P2.
23
A14
A15
7/
P2.
22
A15
C
xD
R
1/
P4.
21
C
TxD
0/
P4.
20
D
R
7/
P3.
19
7
P3.
R
W
6/
P3.
18
6
P3.
A16
5
P3.
4
P3.
3
P3.
2
P3.
1
P3.
0
P3.
2
1
4-15
4339B–CAN–11/04
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