Etn 601

U.M.S.A. ETN-601 Sistemas Digitales Decodificador 3 a 8 Aux. David Marza Herrera

Decodificador 3 a 8 74LS138 ,[object Object]

Decodificador 3 a 8 Diseño Esquemático en Quartus II ,[object Object],[object Object]

Decodificador 3 a 8 Diseño Esquemático en Quartus II ,[object Object]

Decodificador 3 a 8 Diseño Esquemático ,[object Object],[object Object],[object Object]

Decodificador 3 a 8 Diseño Esquemático ,[object Object],[object Object]

Decodificador 3 a 8 Diseño usando VHDL ,[object Object],[object Object]

Decodificador 3 a 8 Diseño usando VHDL ,[object Object]

Decodificador 3 a 8 Diseño usando VHDL ,[object Object],[object Object],[object Object],[object Object],LIBRARY ieee; USE ieee.std_logic_1164.ALL; ENTITY dec3a8s IS PORT( A0, A1, A2, E1, E2, E3 :IN STD_LOGIC; s1, s2, s3, s4, s5 :OUT STD_LOGIC; s6, s7, s8 :OUT STD_LOGIC); END dec3a8s; ARCHITECTURE decodific OF dec3a8s IS SIGNAL A0neg :STD_LOGIC; SIGNAL A1neg :STD_LOGIC; SIGNAL A2neg :STD_LOGIC; SIGNAL habilit :STD_LOGIC; BEGIN A0neg <= NOT A0; A1neg <= NOT A1; A2neg <= NOT A2; habilit <= NOT E1 AND NOT E2 AND E3; s1 <= NOT(habilit AND (A0neg AND A1neg AND A2neg)); s2 <= NOT(habilit AND (NOT A0neg AND A1neg AND A2neg)); s3 <= NOT(habilit AND (A0neg AND NOT A1neg AND A2neg)); s4 <= NOT(habilit AND (NOT A0neg AND NOT A1neg AND A2neg)); s5 <= NOT(habilit AND (A0neg AND A1neg AND NOT A2neg)); s6 <= NOT(habilit AND (NOT A0neg AND A1neg AND NOT A2neg)); s7 <= NOT(habilit AND (A0neg AND NOT A1neg AND NOT A2neg)); s8 <= NOT(habilit AND (NOT A0neg AND NOT A1neg AND NOT A2neg)); END decodific;

Decodificador 3 a 8 Diseño VHDL ,[object Object],[object Object]

Decodificador 3 a 8 Diseño usando VHDL ,[object Object],[object Object],[object Object],ENTITY tabdeco3a8 IS PORT( a :IN BIT_VECTOR(2 DOWNTO 0); E3, E2, E1 :IN BIT; q :OUT BIT_VECTOR(7 DOWNTO 0)); END tabdeco3a8; ARCHITECTURE tabla OF tabdeco3a8 IS SIGNAL entradas :BIT_VECTOR(5 DOWNTO 0); BEGIN entradas <= E3 & E2 & E1 & a; WITH entradas SELECT q <= "11111110" WHEN "100000", "11111101" WHEN "100001", "11111011" WHEN "100010", "11110111" WHEN "100011", "11101111" WHEN "100100", "11011111" WHEN "100101", "10111111" WHEN "100110", "01111111" WHEN "100111", "11111111" WHEN OTHERS; END tabla;

[object Object],[object Object]

Etn 601

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