What is decoder explain 3 to 8 decoder circuit?
This decoder circuit gives 8 logic outputs for 3 inputs and has a enable pin. The circuit is designed with AND and NAND logic gates. It takes 3 binary inputs and activates one of the eight outputs. 3 to 8 line decoder circuit is also called a binary to an octal decoder.
What is the output of a 3 to 8 decoder when the input is 101?
(a) Using a 3-to-8 decoder and two four-input OR gates, design a circuit that has three inputs and a 2-bit output. The output of the circuit represents (in binary form) the number of 1’s present in the input. For example, when the input is ABC = 101, the output will be Count = 10.
What is decoder Wikipedia?
There are several types of binary decoders, but in all cases a decoder is an electronic circuit with multiple input and multiple output signals, which converts every unique combination of input states to a specific combination of output states. Widely used decoders are often available in the form of standardized ICs.
How many 3 to 8 line decoder with an enable input are needed to construct a 62 64 line decoder without using any other logic gates?
GATE | GATE-CS-2007 | Question 85 How many 3-to-8 line decoders with an enable input are needed to construct a 6-to-64 line decoder without using any other logic gates? hence required decoders (from fig.) = 9 so ans is ( C) part.
Which are the enable pins for 3/8 decoder?
The device takes 3 input data and converts it to 8-bit data. This chip is high used in decoding in memory to minimize the effect of decoding. The chip includes three enable pin, three input pins, and 8 output pins.
How do you make a 3/8 decoder?
- Using the above expressions, the circuit of a 3 to 8 decoder can be implemented using three NOT gates and eight 3-input AND gates as shown in fig (1).
- The three inputs A, B and C are decoded into eight outputs, each output representing one of the midterms of the 3-input variables.
What is decoder and its types?
The combinational circuit that change the binary information into 2N output lines is known as Decoders. The binary information is passed in the form of N input lines. The output lines define the 2N-bit code for the binary information. In simple words, the Decoder performs the reverse operation of the Encoder.
How many 3 to 8 line decoders with an enable input are needed to construct a 6 to 64 line?
How many 3-to-8 line decoders with an enable input are needed to construct a 6-to-64 line decoder without using any other logic gates? 7. 8.
How many 3 line to 8 line decoders are required for a 4 to 16 decoder assume that one inverter is also available?
Circuit Design of 4 to 16 Decoder Using 3 to 8 Decoder 4 to 16 decoder circuit is obtained from two 3 to 8 decoder circuits or three 2 to 4 decoder circuits.
What kind of decoder is 3 to 8 line decoder?
3 to 8 line decoder demultiplexer is a combinational circuit that can be used as both a decoder and a demultiplexer. IC 74HC238 decodes three binary address inputs (A0, A1, A2) into eight outputs (Y0 to Y7). The device also has three Enable pins. The same combination is used as a demultiplexer.
What is the logic diagram of a 3 to 8 decoder?
3 to 8 Decoder Logic Diagram The logical diagram of the 3×8 line decoder is given below. 3 to 8 line Decoder has a memory of 8 stages. It is convenient to use an AND gate as the basic decoding element for the output because it produces a “HIGH” or logic “1” output only when all of its inputs are logic “1”.
What is the number of inputs and outputs in a decoder?
The number of available inputs are 3 and outputs are 8. Let us represent the inputs and outputs by symbol letters. Let us represent the inputs by x, y, and z; and the outputs by D 0, D 1, D 2, …
How are the and Gates represented in decoder?
The AND gates are represented by D0, D1, D2, D3, D4, D5, D6, and D7. The corresponding inputs are connected with the AND gates as per the boolean functions given above. I hope you have learned a lot from this article.
