Appendix C: Board Schematics
AT89STK-06 Demo Board User Guide
4-15
4339B–CAN–11/04
Appendix C: Board Schematics
Figure 4-3.
AT89STK-06 Board Schematics (1 of 4)
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
A14
P2.6
P3.1
A12
P2.4
A8
P3.3
A10
A8
P2.0
A13
A15
P2.7
A12
A16
P3.5
A11
A15
P0.6
P0.5
P3.4
P0.3
P4.2
A14
P0.0
A13
P2.5
P3.0
A10
P2.2
A9
P2.1
P0.4
P0.7
A11
P2.3
P3.6
P3.2
P0.2
P0.1
A9
P3.7
A8
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P1.6
P1.0
P1.5
P1.5
P1.2
P1.4
P1.1
P1.0
P1.7
P1.6
P1.3
P1.2
P1.1
P1.3
P1.4
P1.0
P1.7
A16
P0.5P0.5P0.5P0.5P0.5P0.5P0.5P0.5P0.5P0.5
P0.3P0.3P0.3P0.3P0.3P0.3P0.3P0.3P0.3P0.3
PSENPSENPSENPSENPSENPSENPSENPSENPSENPSEN
P0.2P0.2P0.2P0.2P0.2P0.2P0.2P0.2P0.2P0.2
A14
P0.7P0.7P0.7P0.7P0.7P0.7P0.7P0.7P0.7P0.7
A9
A11
P0.1P0.1P0.1P0.1P0.1P0.1P0.1P0.1P0.1P0.1
A15
P0.6P0.6P0.6P0.6P0.6P0.6P0.6P0.6P0.6P0.6
A10
A12
P4.4P4.4P4.4P4.4P4.4P4.4P4.4P4.4P4.4P4.4
P0.4P0.4P0.4P0.4P0.4P0.4P0.4P0.4P0.4P0.4
ALEALEALEALEALEALEALEALEALEALE
A13
AGND
VCC
AGND
AGND
VCC
VCC
VCC
VCC
AGND
VCC
P0.[0..7]
A[8..16]
P4.1
P4.0
P3.[0..7]
A[8..16]
/PSEN
/INT0
P1.[0..7]
VAREF
TWI_scl
RX_UART
ISP_FLASH
A16
XTAL2_44
/BUZZER
TX_UART
/RD
/WR
/EA
TX_UART
RX_UART
/INT0
/EA
/INT1
ALE
XTAL2_52
P4.0
P4.1
P0.[0..7]
P3.[0..7]
CS_RAM
TWI_sda
/INT1
P1.[0..7]
A[8..16]
RST
/RD
/WR
P4.3
P2.[0..7]
TWI_sda
TWI_scl
CS_RAM
CS_FLASH
VAREF
ISP_FLASH
/BUZZER
ADC_Pot
A16
P4.2
P4.4
/PSEN
ALE
CS_FLASH
RST
ADC_Ext
ADC_Temp
ADC_Pot
ISP_mode
Title
Size
Document Number
Rev
Date:
Sheet
of
<Doc>
1.0.0
CC0x_demob/MCU
A4
14
Thursday, January 08, 2004
Title
Size
Document Number
Rev
Date:
Sheet
of
<Doc>
1.0.0
CC0x_demob/MCU
A4
14
Thursday, January 08, 2004
Title
Size
Document Number
Rev
Date:
Sheet
of
<Doc>
1.0.0
CC0x_demob/MCU
A4
14
Thursday, January 08, 2004
RX_CAN
TX_CAN
AT89C51CC01/03_PLCC44
AT89C51CC03_PLCC52
DECOUPLING CAPACITOR
CLOSE TO THE DEVICE
DECOUPLING CAPACITOR
CLOSE TO THE DEVICE
close for CC02 only
"Solder Strap Default:open"
Y2Y2
C8
22 nF
C8
22 nF
R1
1 K
R1
1 K
C3
100 nF
C3
100 nF
R2
10 K
R2
10 K
C2
22 pF
C2
22 pF
SP1SP1
D1
LED PWR GREEN
ALE
D1
LED PWR GREEN
ALE
RESET
44
VSS
43
EA
11
P3.0/RxD
12
P3.1/TxD
13
P3.2/INT0/
14
P3.3/INT1/
15
P3.4/T0
16
P3.5/T1
17
P3.6/
WR
18
P3.7/
RD
19
P1.7/AN7/CEX4
10
P1.6/AN6/CEX3
9
P1.5/AN5/CEX2
8
P1.4/AN4/CEX1
7
P1.3/
AN3
/ C
EX0
6
P1.2/
AN2
/ EC
I
5
P1.1/
AN1
/ T2
EX
4
P1.0/
AN0
/ T2
3
P2.7/
A15
22
P2.6/
A14
23
P2.5/
A13
24
P2.4/
A12
25
P2.3/
A11
26
P2.2/
A10
27
P2.1/
A9
28
P2.0/A8
29
P0.7/AD7
37
P0.6/AD6
36
P0.5/AD5
35
P0.4/AD4
34
P0.3/AD3
33
P0.2/AD2
32
P0.1/AD1
31
P0.0/AD0
30
XTAL
1
41
XTAL
2
40
ALE
39
PSEN
38
VAGN
D
1
VAREF
2
VCC
42
P4.0/
Tx D
C
20
P4.1/
Rx
DC
21
AT89C51CC01/03_PLCC44
U2
AT89C51CC03_PLCC44
AT89C51CC01/03_PLCC44
U2
AT89C51CC03_PLCC44
C5
22 nF
C5
22 nF
SW4
ISP
SW4
ISP
Y1
12 MHz
Y1
12 MHz
VSS
52
TEST
I
51
EA
12
P3.0/RxD
14
P3.1/TxD
16
P3.2/INT0/
17
P3.3/INT1/
18
P3.4/T0
19
P3.5/T1
20
P3.6/
WR
21
P3.7/
RD
22
P1.7/AN7/CEX4
11
P1.6/AN6/CEX3
10
P1.5/AN5/CEX2
9
P1.4/AN4/CEX1
8
P1.3/
AN3
/ C
EX0
7
P1.2/
AN2
/ EC
I
6
P1.1/
AN1
/ T2
EX
5
P1.0/
AN0
/ T2
4
P2.7/
A15
25
P2.6/
A14
26
P2.5/
A13
28
P2.4/
A12
29
P2.3/
A11
30
P2.2/
A10
31
P2.1/
A9
32
P2.0/A8
34
P0.7/AD7
44
P0.6/AD6
43
P0.5/AD5
41
P0.4/AD4
40
P0.3/AD3
39
P0.2/AD2
38
P0.1/AD1
37
P0.0/AD0
35
XTAL
1
48
XTAL
2
47
ALE
46
PSEN
45
RESET
1
VAGN
D
2
VCC
49
VCC
50
VAREF
3
NC
13
NC
27
NC
42
P4.0/
Tx D
C
23
P4.1/
Rx
DC
24
P4.2/
MI
SO
33
P4.3/SCK
15
P4.4/MOSI
36
AT89C51CC03_PLCC52
U1
AT89C51CC03_PLCC52
AT89C51CC03_PLCC52
U1
AT89C51CC03_PLCC52
C7
100 nF
C7
100 nF
C1
22 pF
C1
22 pF
C4
22 pF
C4
22 pF
C6
22 pF
C6
22 pF
1
2
JP1
EA
JP1
EA
