MICROPROCESSOR 8255
ARCHITECTURE OF 8085
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How many pins does the 8255 PPI IC contains?
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24
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20
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40
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32
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Explanation:
Detailed explanation-1: -The 8255 has 24 input/output pins. These are divided into three 8-bit ports (A, B, C).
Detailed explanation-2: -There are 24 input/output pins for the 8255. These are split into three ports that are 8-bit (A, B, C).
Detailed explanation-3: -Hence 8255 is a programmable Input Output port chip. It is a 40 pin chip available for dual line packaging. Power supply of +5 Volt DC is needed for its working. It consists of two programmable Input Output ports having of size 8 bits and two programmable Input Output ports of size 4 bits.
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