Question

4. Draw a diagram of a bus system, but use three state buffers and decoder instead of the
multiplexers.
​

Answer 1

A three state bus buffer is an integrated circuit that connects multiple data sources to a single bus. now let's see the more detailed analysis of 3 state bus buffer .

1. there are three state 1 and o but important state is third which is act like an open circuit .

2. if the output is not connected , then there is no logical significance .

3. it may perform any type of conventional logical operations such as AND , OR and NAND etc.

4. it contains both normal input and control input . here, the output state is determined by the control unit .