Problem Statement :Design a digital circuit that detects if a 4-bit input code is a valid BCD (binary-coded decimal) code.That is, if the input value is in the range of 0-9, then the output of the circuit is 1,otherwise the output of the circuit is 0.

1) Draw truth table -- Can you take advantage of"don't cares"?Label all inputs and outputs.

2) Clearly indicate which variable is the lsb

3) Minimize Boolean function using K-map

3) Draw circuit(useAND. OR,NOT gates)

4) Simulate circuit using MultiSIM or equivalent (label all inputs and outputs)