PUNTA LÓGICA DIGITAL 74HC04
Aug 19th, 2019 | by: JERO ELECTRONICSCategory: Electronics Basic Circuits
Este PCB está basado en un circuito de uso libre que puede encontrar fácilmente en Internet, es muy práctico para verificar estados lógicos en nuestros circuitos, no es el circuito mas complejo pero espero les sea de utilidad como a mi.
Funciona de manera muy simple, en el display de 7 segmentos se pueden visualizar estados altos, bajos y pulsos. Si el estado es bajo se mostrara un "0" en la pantalla, a si es un estado alto se visualizara un "1" en la pantalla y si llegase a ser un tren de pulsos, al oscilar entre estado alto y bajo según la frecuencia de dichos pulsos se mostrara una "P" que supone la variación entre estado alto y bajo, esto nos servirá para lectura de señales TTL, al funcionar con un integrado 74HC04, cuanto haya presente un voltaje que no se encuentre dentro de los rangos de un "1" ó un "0" lógico no se mostrara en la pantalla.
Si queremos algo mas preciso lo mejor seria un osciloscopio.
LISTA DE COMPONENTES
- 6 unidades - Resistencia 470 ohm
- 1 unidad - Resistencia 1 K
- 1 unidad - Resistencia 10 K
- 1 unidad - Transistor 2N3904
- 1 unidad - Regulador LM7805
- 1 unidad - Base para integrado de 14 pines
- 1 unidad - 74HC04
- 2 unidades - Condensador de 10 uF ( para filtraje de la fuente el voltaje según la fuente de entrada, yo use de 10uF/50V porque era de los que disponía)
- 1 unidad - Terminal de bloque azul
https://drive.google.com/file/d/1I2nzknZUd6KTyJa0SPahGGCaE9bzMbip/view?usp=sharing
Es mi primer PCB, y mi primer pedido en JLCPCB, me fue bastante bien la calidad es estupenda muy profesional
el los enlaces pueden ver los archivos gerber para la fabricacion del impreso
https://drive.google.com/file/d/1I2nzknZUd6KTyJa0SPahGGCaE9bzMbip/view?usp=sharing
PHOTO GALLERY
Los archivos GERBERS con el PCB estarán disponibles para su descarga en el enlace que dejo en la descripción, y en la ultima foto esta es circuito en el que me base, de antemano agradezco a todas las personas que comparten su conocimiento para uso de toda la comunidad.
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