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MSM80C154S/83C154S
PIN CONFIGURATION (TOP VIEW)
P3.5/T1/HPDI
262
P1.0/T2
1
P1.1/T2EX
2
P1.2
3
P1.3
4
P1.4
5
P1.5
6
P1.6
7
P1.7
8
RESET
9
P3.0/RXD
10
P3.1/TXD
11
P3.2/INT0
12
P3.3/INT1
13
P3.4/T0
14
15
P3.6/WR
16
P3.7/RD
17
XTAL2
18
XTAL1
19
V
20
SS
40-Pin Plastic DIP
¡ Semiconductor
40
V
CC
39
P0.0
38
P0.1
37
P0.2
36
P0.3
35
P0.4
34
P0.5
33
P0.6
32
P0.7
EA
31
ALE
30
PSEN
29
28
P2.7
27
P2.6
26
P2.5
25
P2.4
24
P2.3
P2.2
23
22
P2.1
21
P2.0
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