1
2
3
4
A
B
C
D
4
3
2
1
D
C
B
A
Title
Number
Revision
Size
A4
Date:
10-Jul-1998
Sheet of
File:
C:\ADVSCH\AVRPRG.SCH
Drawn By:
1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
Printer Port
DB25
BA1FB AT90Sxxxx Programmer
9707121600
By Jerry Meng
220
220
220
RESET
1
XTAL1
2
XTAL2
3
GND
4
PB0
5
PB1
6
PB2
7
VCC
8
8pin Socket
AT90S2323/2343
1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
Printer Port
DB25
220
220
220
1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
Printer Port
DB25
220
220
220
RESET
1
PD0(RXD)
2
PD1(TXD)
3
XTAL2
4
XTAL1
5
PD2(INT0)
6
PD3(INT1)
7
PD4(T0)
8
PD5(T1)
9
GND
10
VCC
20
PB7(SCK)
19
PB6(MISO)
18
PB5(MOSI)
17
PB4
16
PB3(OC1)
15
PB2
14
PB1(AIN1)
13
PB0(AIN0)
12
PD6(ICP)
11
20pin Socket
AT90S2313
MOSI
6
MISO
7
SCK
8
RESET
9
RXD
10
TXD
11
INT0
12
INT1
13
PD4
14
PC2
23
PC1
22
PC0
21
GND
20
XTAL1
19
XTAL2
18
PD7
17
PD6
16
OC1A
15
PC4
25
PC3
24
PC5
26
PC6
27
OC1B
29
PC7
28
ALE
30
PA7
32
ICP
31
PA6
33
PA3
36
PA5
34
PA4
35
PA2
37
PA1
38
VCC
40
PA0
39
AIN0
3
AIN1
4
PB1
2
T0
1
SS
5
40pin Socket
AT90S8515/4414/8535/4434
1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
9
22
10
23
11
24
12
25
13
Printer Port
DB25
MISO
SCK
MOSI
RESET
GND
ISP to Target System