How do you decoder a 2X4?

The 2-to-4 line binary decoder depicted above consists of an array of four AND gates. The 2 binary inputs labelled A and B are decoded into one of 4 outputs, hence the description of 2-to-4 binary decoder. Each output represents one of the minterms of the 2 input variables, (each output = a minterm).

How many 2-to-4 decoders are needed to implement an 4 to 16 decoder note all the decoders have an enable input?

Therefore, we require two 3 to 8 decoders for implementing one 4 to 16 decoder. The block diagram of 4 to 16 decoder using 3 to 8 decoders is shown in the following figure. The parallel inputs A2, A1 & A0 are applied to each 3 to 8 decoder.

How many and gates are needed to build a 4 to 16 decoder?

How to design a 4-to-16 decoder using two 3-to-8 decoders and 16 two-input AND gates.

How many 2×4 decoders are needed for 4×16?

Update: you need 5 decoders.

What does a 2×4 decoder do?

Designing of 2 to 4 Line Decoder Circuit The decoder circuit can decode a 2, 3, or 4-bit binary number, or can decode up to 4, 8, or 16 time-multiplexed signals. As a decoder, this circuit takes an n-bit binary number and generates an output on one of the 2n output lines.

What is the need of decoder?

Introduction to Decoder The decoder is an electronic device that is used to convert a digital signal to an analog signal. It allows a single input line and produces multiple output lines. The decoders are used in many communication projects that are used to communicate between two devices.

What is the purpose of a decoder?

A decoder is a device that generates the original signal as output from the coded input signal and converts n lines of input into 2n lines of output. An AND gate can be used as the basic decoding element because it produces a high output only when all inputs are high.

How many 2 * 4 decoders are needed to design a 4 * 16 decoder Mcq?

Originally Answered: How make a 4*16 decoder by using four of 2*4 decoders? If we are really talking about 74139 style 2 line to 4 line decoders you need 5 of them. Four provide the 16 outputs and the fifth one selects which of the first 4 is active.

https://www.youtube.com/watch?v=_xCZ21Z3sQo