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It generally has 4 input lines and 7 output lines. Here we design a simple display decoder circuit using logic gates. Even though commercial BCD to 7 segment decoders are available, designing a ...
The most significant input (A3) produces an useful inhibit function when the ’42’ is used as a 1-of-8 decoder. The A3 input can also be used as the data input in an 8-output demultiplexer application.