Priority Encoder Circuit Diagram. Priority is given to the input lines. A 4 2 priority encoder has four inputs and two outputs like a normal binary encoder.
Let us analyse a 4 2 priority encoder as an example to understand how it differs from a normal encoder and it can overcome the above mentioned two drawbacks. Out of the four input d3 has the highest priority and d0 has the lowest priority. With advertising revenues falling despite increasing numbers of visitors we need your help to maintain and improve this site which takes time money and hard work.
The output of a priority encoder is the binary representation of the original number starting from zero of the most significant input bit.
A 4 2 priority encoder has four inputs and two outputs like a normal binary encoder. There are four input d0 d1 d2 d3 and two output y0 y1. Out of the four input d3 has the highest priority and d0 has the lowest priority. They are often used to control interrupt requests by acting on the highest priority interrupt input.
