Electronics Engineering · Digital Electronics
A 3-bit Gray code counter sequence (000, 001, 011, 010, 110, 111, 101, 100) controls the selection lines of an 8-to-1 multiplexer. The inputs are connected such that only specific channels transmit data when the counter sequences. For an active-low enabled multiplexer that pulls high when disabled, which of the following represents a standard repeating sequence of outputs starting from state 000?
- 1I0, I1, I2, I3, I0, I1, I2, I3
- 21, I0, 1, I1, I2, 1, I3, 1
- 3I0, 1, I1, 1, I2, 1, I3, 1
- 4I0, 1, 1, I1, I3, 1, 1, I2✓
Correct answer
I0, 1, 1, I1, I3, 1, 1, I2
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