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8255A-5 Ver la hoja de datos (PDF) - Intel

Número de pieza
componentes Descripción
fabricante
8255A-5
CHMOS PROGRAMMABLE PERIPHERAL INTERFACE
Intel
Intel 
8255A-5 Datasheet PDF : 23 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
82C55A
MODE 0 Port Definition
A
B
GROUP A
GROUP B
D4
D3
D1
D0
PORT A
PORT C
(UPPER)
PORT B
PORT C
(LOWER)
0
0
0
0
OUTPUT
OUTPUT
0
OUTPUT
OUTPUT
0
0
0
1
OUTPUT
OUTPUT
1
OUTPUT
INPUT
0
0
1
0
OUTPUT
OUTPUT
2
INPUT
OUTPUT
0
0
1
1
OUTPUT
OUTPUT
3
INPUT
INPUT
0
1
0
0
OUTPUT
INPUT
4
OUTPUT
OUTPUT
0
1
0
1
OUTPUT
INPUT
5
OUTPUT
INPUT
0
1
1
0
OUTPUT
INPUT
6
INPUT
OUTPUT
0
1
1
1
OUTPUT
INPUT
7
INPUT
INPUT
1
0
0
0
INPUT
OUTPUT
8
OUTPUT
OUTPUT
1
0
0
1
INPUT
OUTPUT
9
OUTPUT
INPUT
1
0
1
0
INPUT
OUTPUT
10
INPUT
OUTPUT
1
0
1
1
INPUT
OUTPUT
11
INPUT
INPUT
1
1
0
0
INPUT
INPUT
12
OUTPUT
OUTPUT
1
1
0
1
INPUT
INPUT
13
OUTPUT
INPUT
1
1
1
0
INPUT
INPUT
14
INPUT
OUTPUT
1
1
1
1
INPUT
INPUT
15
INPUT
INPUT
MODE 0 Configurations
231256 – 10
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