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The pulse width of the signal INIT at the receiving terminal must be more than

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in Microprocessor by (39.4k points)
The pulse width of the signal INIT at the receiving terminal must be more than

(a) 10 microseconds

(b) 20 microseconds

(c) 40 microseconds

(d) 50 microseconds

I had been asked this question in homework.

This intriguing question originated from Modes of Operation of 8255 topic in section Basic Peripherals and their Interfacing with 8086/88 of Microprocessor

1 Answer

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by (49.2k points)
Right option is (d) 50 microseconds

Easiest explanation: The pulse width of the signal must be more than 50microseconds at the receiving terminal.

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