Descripción
74LS192
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Contador por décadas BCD 74LS192 sincrónico hacia arriba y hacia abajo (up/down) con entradas de reloj separadas, carga asincrónica, con clear.
Un contador es un circuito secuencial construido a partir de biestable y puertas lógicas capaz de almacenar y contar los impulsos (a menudo relacionados con una señal de reloj), que recibe en la entrada destinada a tal efecto, asimismo también actúa como divisor de frecuencia. Normalmente, el cómputo se realiza en código binario, que con frecuencia será el binario natural o el BCD natural (contador de décadas).
Características:
- Contador por décadas BCD
- Conteo reversible (ascendente/descendente – up/down) con entradas de reloj separadas
- Puede ser programado ó precargado (preset). Esta función también permite utilizar el contador como divisor por módulo-N
- Entrada de clear independiente
- Conteo por flanco de subida
- Múltiples unidades pueden ser conectadas en cascada fácilmente
- Sus salidas pueden manejar hasta 10 cargas LS-TTL
- Tecnología: TTL
- Velocidades similares a la familia LS-TTL
- Tiempo de propagación: 10 ns típico
- Voltaje de alimentación: 5 V
- Encapsulado: DIP 16 pines
