
3/26
¡ Semiconductor MSM82C55A-2RS/GS/VJS
PIN CONFIGURATION (TOP VIEW)
39
38
37
36
35
34
33
RESET
D
0
D
1
D
2.
D
3
NC
D
4
CS
GND
A
1
A
0
PC
7
NC
PC
6
18
19
20
21
22
23
24
PC
2
PC
3
PB
0
PB
1
PB
2
NC
PB
3
6
5
4
3
2
1
44
RD
PA
0
PA
1
PA
2
PA
3
NC
PA
4
7
8
9
10
11
12
13
32
31
30
29
D
5
D
6
D
7
V
CC
PC
5
PC
4
PC
0
PC
1
14
15
16
17
25
26
27
28
PB
4
PB
5
PB
6
PB
7
43
42
41
40
PA
5
PA
6
PA
7
WR
44 pin Plastic QFJ
44 pin Plastic QFP
16
15
14
13
PA
3
PA
2
PA
1
PA
0
RD
CS
GND
A
1
A
0
PC
7
PC
6
PC
5
PC
4
PC
0
PC
1
PC
2
20
19
18
17
PC
3
PB
0
PB
1
PB
2
PA
4
PA
5
PA
6
PA
7
WR
RESET
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
PB
7
1
2
3
4
5
6
7
8
9
10
11
12
40 pin Plastic DIP
32
31
30
29
28
27
26
37
38
39
40
36
35
34
33
25
PB
6
PB
5
PB
4
PB
3
24
23
22
21
V
CC
33
32
31
30
29
28
27
RESET
D
0
D
1
D
2.
D
3
D
4
D
5
CS
GND
A
1
A
0
PC
7
PC
6
PC
5
12
13
14
15
16
17
18
NC
PC
3
PB
0
PB
1
PB
2
V
CC
PB
3
44
43
42
41
40
39
38
RD
PA
0
PA
1
PA
2
PA
3
V
CC
PA
4
1
2
3
4
5
6
7
26
25
24
23
D
6
D
7
V
CC
PB
7
PC
4
PC
0
PC
1
PC
2
8
9
10
11
19
20
21
22
PB
4
PB
5
PB
6
NC
37
36
35
34
PA
5
PA
6
PA
7
WR
Commenti su questo manuale