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MSM80C154S/83C154S/85C154HVS
12
2.2 MSM80C154S/MSM83C154S pin layouts
1P1.0/T2
2P1.1/T2EX
3P1.2
4P1.3
5P1.4
6P1.5
7P1.6
8P1.7
9RESET
10
P3.0/RXD
11
P3.1/TXD
12
P3.2/INT0
13
P3.3/INT1
14
P3.4/T0
15
P3.5/T1/HPDI
16
P3.6/WR
17
P3.7/RD
18
XTAL2
19
XTAL1
20
VSS
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
30
ALE
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
MSM80C154SRS/MSM83C154SRS
MSM80C154SRS/MSM83C154SRS
(Top View) 40 Pin Plastic DIP
1P1.5
2P1.6
3P1.7
4RESET
5P3.0/RXD
6NC
7P3.1/TXD
8P3.2/INT0
9P3.3/INT1
10P3.4/T0
11P3.5/T1/HPDI
MSM80C154SGS/
MSM83C154SGS
MSM80C154SGS/MSM83C154SGS
(Top View) 44 Pin Plastic Package
P3.6/WR
P3.7/RD
XTAL2
XTAL1
VSS
VSS
P2.0
P2.1
P2.2
P2.3
P2.4
P1.4
P1.3
P1.2
P1.1/T2EX
P1.0/T2
NC
VCC
P0.0
O0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
EA
NC
ALE
PSEN
P2.7
P2.6
P2.5
33
32
31
30
29
28
27
26
25
24
23
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