**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 O_{1}: -**

**K map for O_{2}: -**

**K map for O_{3}: -**

**K map for O_{4}: -**

**K map for O_{5}: -**

**Logical and Block Diagram: -**

** Block Diagram for 4 bit to BCD conversion.**