Multiplexor 8x1 Diseño

flux

0:28

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V1
Aquí tienes una revisión detallada de cómo deben conectarse las señales de selección:

Table

SeñalMultiplexores 4:1 (SN74ALS153N)Multiplexor 2:1 (SN74LS157N)Función en la selección
A0Se conecta a la entrada de selección A0 en ambos chips (SN74ALS153N)No se conecta directamenteDefine el bit menos significativo para escoger 1 de 4 entradas en cada chip
A1Se conecta a la entrada de selección A1 en ambos chips (SN74ALS153N)No se conecta directamenteDefine el bit medio para la elección interna de cada 4:1
A2No se conecta a los SN74ALS153NSe conecta al pin de selección (S) del SN74LS157NSelecciona entre la salida de U1 (cuando A2 = 0) y la de U2 (cuando A2 = 1) para generar la salida final
Consideraciones adicionales:
  • Asegúrate de utilizar la misma señal de A0 y A1 para ambos multiplexores 4:1 para garantizar que seleccionen la misma subentrada simultáneamente.
  • La señal A2 debe estar aislada para controlar exclusivamente la selección entre las dos salidas de los multiplexores 4:1 mediante el SN74LS157N.
  • Verifica que los niveles lógicos sean compatibles con los chips según sus datasheets y que las conexiones de VCC/GND estén correctas, incluidos los condensadores de desacople.
¿Te gustaría revisar alguna otra parte de las conexiones o profundizar en algún detalle específico?
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Niveles lógicos
Conexión compartida
316 days

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