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In the keypad application, just after the 4 ms mark the simulation imitates the release of the key by changing the column value back to F hex, which causes the d output to go into its Hi-Z state. On the next rising clock edge, what happens to dav?

It goes HIGH.
It goes LOW.
It goes to Hi-Z.
It goes to 1111H.

Correct Answer: It goes LOW.

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