40-Pin At89S8253 Schematic - mikroElektronika mikroProg User Manual

VCC
MOSI
SS
RST
SCK
MISO
VCC
C3
100nF
X1
8MHz
C1
22pF
Figure 6-1: Connection schematic for 40-pin AT89S8253 MCU via 2x5 male header
U1
1
P1.0
2
P1.1
3
P1.2
4
P1.3
5
P1.4 (SS)
6
P1.5 (MOSI)
7
P1.6 (MISO)
8
P1.7 (SCK)
9
RST
10
P3.0
11
P3.1
12
P3.2
13
P3.3
14
P3.4
15
P3.5
16
P3.6
17
P3.7
18
XTAL2
19
XTAL1
20
GND
40 pin
C2
22pF
Page 17
VCC
40
VCC
39
P0.0
38
P0.1
37
P0.2
36
P0.3
35
P0.4
34
P0.5
33
P0.6
32
P0.7
31
EA/VPP
30
ALE/PROG
29
PSEN
28
P2.7
27
P2.6
26
P2.5
25
P2.4
24
P2.3
23
P2.2
22
P2.1
21
P2.0