This encoder can be implemented with 2 OR gates as shown in the figure below. Line encoders are an example of Encoder in which multi-input lines are converted into a few binary outputs.Īccording to the truth table of 4 to 2 encoder:Īs from the above expressions, we deduce that binary encoder only needs OR gate s. Block diagram of binary encoder is given below. When we want to process data received from many data lines and we have few available input ports or we want to conserve the input ports of a system then we apply an encoder to reduce the number input data lines. It has 2 n input lines and “n” output lines. In simple words, Binary Encoder used to encode a Binary Codes. Its operation is exactly opposite of Binary Decoder.
8 to 3 Line Encoder Schematic Using OR gateĪ combinational circuit capable of converting “ 2 n” input signals into “ n” signals (such as BCD (Binary Coded Decimal) Binary etc) is called binary encoder also known as digital encoder.
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