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Si quiere tener a su alcance una colección de casos de estudio sobre diseño lógico digital, expuestos en capítulos individuales a modo de sesiones prácticas, ha llegado al libro indicado. En él se recurre a una versión gratuita del versátil programa PSpice para simular un amplio abanico de diseños digitales como paso previo a la verificación experimental de su funcionamiento, que se realizará mediante el cableado manual sobre placas de prototipos de circuitos integrados digitales de pequeña y mediana escala de integración. Gracias a los dispositivos lógicos de función fija y bajo coste, que integran desde simples puertas lógicas y biestables hasta decodificadores, multiplexores, sumadores, contadores y registros de desplazamiento, es posible experimentar con todos los diseños propuestos en el libro sin necesidad de contar con sofisticados recursos. El presente texto constituye, por tanto, un complemento formativo orientado a afianzar el aprendizaje de los fundamentos de la disciplina mediante un enfoque práctico que, además, le facilitará el abordaje del diseño de sistemas digitales mediante lenguajes de descripción hardware en una etapa adicional del aprendizaje. En esta tercera edición el material se ha agrupado en cinco partes. La primera de ellas persigue una primera toma de o con los circuitos integrados digitales a partir de sencillos montajes orientados a la caracterización eléctrica y temporal de puertas lógicas. La segunda parte incide en cuestiones de lógica puramente combinacional mediante diseños implementados tanto con puertas lógicas como con dispositivos modulares. En la tercera y cuarta parte se aborda el estudio de la lógica secuencial síncrona y asíncrona, respectivamente. La quinta y última parte comprende una variada selección de aplicaciones de las funciones lógicas de uso común que complementan el material previo y abren la puerta al estudio de una serie de áreas temáticas enraizadas en los fundamentos de las tecnologías electrónicas digitales, entre las que destacan los computadores y su estructura, los sistemas electrónicos de comunicaciones, el desarrollo de sistemas empotrados basados en microcontrolador y la implementación de diseños digitales empleando lógica configurable. Sin duda, este libro le será de gran utilidad si desea profundizar en la electrónica digital o si es un estudiante universitario que cursa asignaturas sobre dicha materia. Javier Vázquez del Real es profesor titular del área de Tecnología Electrónica de la Universidad de Castilla-La Mancha.