Semiconductor Specification Sheet

262
¡ SemiconductorMSM80C154S/83C154S
PIN CONFIGURATION (TOP VIEW)
20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
V
SS
P1.0/T2
P1.1/T2EX
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
RESET
P3.0/RXD
P3.1/TXD
P3.2/INT0
P3.3/INT1
P3.4/T0
P3.5/T1/HPDI
P3.6/WR
P3.7/RD
XTAL2
XTAL1
P2.0
V
CC
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
EA
ALE
PSEN
P2.7
P2.6
P2.5
P2.4
P2.3
P2.2
P2.1
21
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
40-Pin Plastic DIP