Draw logic circuit for a converter that converts 4 bit binary input to its equivalent BCD number. 8m Jun2008

Draw logic circuit for a converter that converts 4 bit binary input to its equivalent BCD number. 8m Jun2008

A four bit number can be any number value between 0 to 15  i.e.  0 to F in Hexadecimal.

BCD is a number which is represented in binary as a decimal number hence it can have a max of 9 number value in the representation and the number ranging from 10 to 15 will need two digits and their will be common value 1 in all number from 10 to 15.

Truth Table: –

K map for O₁: –

K map for O₂: –

K map for O₃: –

K map for O₄: –

K map for O₅: –

Logical and Block Diagram: –

                      Block Diagram for 4 bit to BCD conversion.