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SYSTEM CONFIGURATION
13
7P1.5
8P1.6
9P1.7
10RESET
11P3.0/RXD
12NC
13P3.1/TXD
14P3.2/INT0
15P3.3/INT1
16P3.4/T0
17P3.5/T1/HPDI
MSM80C154SJS/MSM83C154SJS
MSM80C154SJS/MSM83C154SJS
(Top View) 44 Pin Plastic QFJ
P3.6/WR
P3.7/RD
XTAL2
XTAL1
VSS
NC
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
P0.1
P0.2
P0.3
39 P0.4
38 P0.5
37 P0.6
36 P0.7
35 EA
34 NC
33 ALE
32 PSEN
31 P2.7
30 P2.6
29 P2.5
18 19 20 21 22 23 24 25 26 27 28
654321
44 43 42 41 40
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
MSM80C154STS/
MSM83C154STS
MSM80C154STS/MSM83C154STS
(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
444342 414039383736 3534
121314 151617181920 2122
Figure 2-2 MSM80C154S/MSM83C154S pin layout (top view)