Descripción
74LS193
Contador binario sincrónico de 4 bits 74LS193, conteo ascendente/descendente (up/down), programable, con clear. TTL
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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 binario sincrónico de 4 bits
- Conteo reversible (ascendente/descendente – up/down)
- 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
- Tecnología: TTL Low Schottky (LS)
- Voltaje de alimentación: 4.75 V a 5.25 V
- Encapsulado: PDIP 16 pines




