Q- Obtain a 4 to 16 decoder using (a) 2 to 4 decoder (b) 3 to 8 decoder Ans: (a) we take abcd2 as the input to the decoder. Following is the diagram to design 4 to 16 decoder using 2 to 4 decoders When we have a=0 b=0 then top most decoder is enabled and 1 […]
Tag: Decoders
Q: Implement Full Adder using DECODER
Q- Implement the Full adder using 3 to 8 decoder. Ans: equation for sum S = ab’c’ + a’b’c + a’bc’ + abc = Σ(1,2,4,7) C = ab + ac + bc = ab(c + c’) + ac (b + b’) + bc (a + a’) = abc + abc’ + abc + ab’c + […]
Decoders
n to m decoder is the combinational circuit which convert binary information from n lines of input to m lines of output and m=<2 n. Let’s have an example of 3 to 8 decoder. This encoder just puts the 1 on the line which is equal to the decimal equivalent of binary number abc2 at the […]