Author Question: Which device drives or generates the data bus? A) shift register B) transceiver C) octal latch D) ... (Read 42 times)

NguyenJ · **on:** Jul 28, 2018

Which device drives or generates the data bus?

A) shift register B) transceiver C) octal latch D) three-state buffer

Question 2

How does a three-state device switch between normal and high-impedance modes?

A) It is in high-impedance mode when the data input is LOW.
B) It is in the normal mode when the data input is LOW.
C) It uses an extra input called an enable input to select modes.
D) It is in normal mode whenever the clock is LOW.