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Q.

Which of the following are Features of 8255A?

A

It consists of 3 8-bit IO ports i.e. PA, PB, and PC.

B

Address/data bus must be externally demux'd.

C

It is TTL compatible.

D

All of the above

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Similar Questions

MCQ

1.

The ______ is a general purpose programmable I/O device designed to transfer the data from I/O to interrupt I/O.

A

8285A

B

8241A

C

8255A

D

8251A

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2.

8253/54 can be operated in _________ Modes?

A

3

B

4

C

5

D

6

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3.

Which port can be split into two parts?

A

PORT A

B

PORT B

C

PORT C

D

PORT D

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4.

Which of the following uses N-MOS technology?

A

8253

B

8254

C

8255

D

8256

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5.

How many ports 8255A has?

A

2

B

3

C

4

D

5

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