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How many input lines does an encoder with 4 output lines have?

How many input lines does an encoder with 4 output lines have?

Every decoder with n input lines will have exactly 2n output lines. So, a two-to-four decoder will have two input lines and four output lines, while a three-to-eight decoder will have three input lines and eight output lines.

What is a 4 to 16 Decoder?

A 4-to-16 decoder consists of 4 inputs and 16 outputs. Similar to all the decoders discussed above, in this also only one output will be low at a given time and all other outputs are high (using maxterms).

How do you make a 4 to 2 encoder?

In 4 to 2 line encoder, there are total of four inputs, i.e., Y0, Y1, Y2, and Y3, and two outputs, i.e., A0 and A1. In 4-input lines, one input-line is set to true at a time to get the respective binary code in the output side. Below are the block diagram and the truth table of the 4 to 2 line encoder.

What is a encoder circuit?

An Encoder is a combinational circuit that performs the reverse operation of Decoder. It has maximum of 2n input lines and ‘n’ output lines. It will produce a binary code equivalent to the input, which is active High. Therefore, the encoder encodes 2n input lines with ‘n’ bits.

What is an 8 to 3 encoder?

The 8 to 3 Encoder or octal to Binary encoder consists of 8 inputs : Y7 to Y0 and 3 outputs : A2, A1 & A0. Each input line corresponds to each octal digit and three outputs generate corresponding binary code.

How many 16 input OR gates are required to build a 4/16 decoder?

Following the steps we took in the lecture, we are supposed to build a 4×16 decoder. So here taking k to be 4, k is even, so we will have 2k so 24=16 AND gates & 2 decoders each of size 2k/2 so 22=4.

How does a 4 2 encoder work?

A 4 to 2 priority encoder has four inputs Y3, Y2, Y1 & Y0 and two outputs A1 & A0. Here, the input, Y3 has the highest priority, whereas the input, Y0 has the lowest priority.

How many inputs are needed for a 4 16 decoder?

16 = 24 = 2n. Thus, number of inputs is 4.

What is an encoder circuit?

An Encoder is a combinational circuit that performs the reverse operation of Decoder. It has maximum of 2n input lines and ‘n’ output lines. It will produce a binary code equivalent to the input, which is active High.

What is a 4 to 2 line encoder?

Advertisements. An encoder is a combinational circuit that performs reverse function of a decoder. It accepts 2n input and produces output in n output lines. This process of generating codes based on the values of input lines is called encoding.

How do encoders work?

Encoders convert motion to an electrical signal that can be read by some type of control device in a motion control system, such as a counter or PLC. The encoder sends a feedback signal that can be used to determine position, count, speed, or direction.