List the difference between encoder and priority encoder?

Answer 1

A normal encoder get proper output when input is asserted atmost one at a time.

i.e if I0 I1 I2 I4 are inputs of 2to4 decoder then if the both inputs I1 and I2 are given then the output maybe 11 or 00 but not 01 or 10.

In pripority encoder assigns priority to inputs, If encoder have I2 high priority than I1 and both I1 and I2 are applied '10' will be output.

Answer 2

A practical encoder is called priority encoder. type of encoder used in IC packages is called priority encoder.