Multiple choice

To access data/address bus, tristate buffers are used ________________

  1. to isolate the devices

  2. to share devices simultaneously

  3. to provide pipelining to the bus

  4. none of these

  5. all of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Tristate buffers have three outputs; i) 1  ii) 0  iii) open circuit (high resistance). When device is not in use, it goes in tristate condition, i.e. open circuit. This condition isolates the device from the bus. 

Keep practicing — related questions