Help please , I am new to circuits and decoders and i need some serious help !!

How to build a 4x16 Decoder Using ONLY two 2x4 decoders ?

Following the steps we took in the lecture , we are supposed to build a 4x16 Decoder . So here taking k to be 4 , k is even , so we will have 2^k so 2^4 = 16 AND gates & 2 decoders each of size 2^(k/2) so 2^2 = 4 .

So we have 16 AND gates & two 2x4 decoders. Each 2x4 decoder has 4 AND gates so we have 8 AND gates that should be connected to the 16 AND gates , how do I do that ????

Your help is highly appreciated .

Question

Help please , I am new to circuits and decoders and i need some serious help !!

How to build a 4x16 Decoder Using ONLY two 2x4 decoders ? 

Following the steps we took in the lecture , we are supposed to build a 4x16 Decoder . So here taking k to be 4 , k is even , so we will have 2^k so 2^4 = 16 AND gates & 2 decoders each of size 2^(k/2) so 2^2 = 4 .

So we have 16 AND gates & two 2x4 decoders. Each 2x4 decoder has 4 AND gates so we have 8 AND gates that should be connected to the 16 AND gates , how do I do that ????

Your help is highly appreciated .

anonymous · Answer

HI, refer the attached file it might help you!