INTRODUCTION TO MICROPEOCESSOR
MICROCOMPUTER SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is a programmable peripheral interface designed to permit easy implementation of timer and counter functions in a microcomputer system.
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8251
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8252
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8253
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8255
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Explanation:
Detailed explanation-1: -Basic differences between them are: Whereas 8253 has an operating frequency of 0-2.6 MHz, 8254 is operated at a frequency that ranges between 0-10 MHz. 8253 uses N-MOS Technology and does not support read-back command whereas 8254 works on H-MOS technology and supports read-back command.
Detailed explanation-2: -Mode 3 – Square Wave Generator.
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