The device features three enable inputs e1, e2 and e3. Dm74150 data selectorsmultiplexers jameco electronics. Circuito integrado 74ls8 decodificador demultiplexor. Decodificador bcd7 seg,sn74ls47n led rojo 7 segmentos sa1021srw. Codificadores e decodificadores art160 elementos importantes dos circuitos logicos digitais sao os codificadores e os decodificadores. Decodificador 748 pdf 74ls, 74ls datasheet, 74ls pdf, buy 74ls, 74ls 3 to 8 decoder. The dm74150 has a strobe input which must be at a low logic level to enable these devices. Sn5474ls48 bcd to 7segment decoder datasheet catalog. Decoder the sn5474ls48 is a bcd to 7segment decoder consisting of nand gates, input buf fers and seven andorinvert gates. Circuito integrado 74ls8 decodificador demultiplexor cantidad.
All of the circuits have full rippleblanking inputout. Este segundo metodo es mas barato, pero algo mas lento. The multiple input enables allow parallel expansion to a 1. This device is ideally suited for high speed bipolar memory chip select address decoding. Seven nand gates and one driver are connected in pairs to make bcd data and its complement available to the seven decoding andorinvert gates. A seguir sera feito um exemplo onde sera obtida a tabela da verdade e a partir desta o circuito. Decodificador bcd a 7 segmentos electronica digital circuitos. Circuito decodificador e multiplexador linkedin slideshare. Libro de electronica digital combinacional disenoteoriaypractica. Dm7446a, dm5447adm7447a bcd to 7segment decodersdrivers june 1989 dm7446a, dm5447adm7447a bcd to 7segment decodersdrivers general description the 46a and 47a feature activelow outputs designed for driving commonanode leds or incandescent indicators directly.
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