Descripción
The MC74AC161/74ACT161 and MC74AC163/74ACT163 are high-speed synchronous modulo-16 binary counters. They are synchronously presettable for application in programmable dividers and have two types of Count Enable inputs plus a Terminal Count output for versatility in forming synchronous multistage counters. The MC74AC161/74ACT161 has an asynchronous Master Reset input that overrides all other inputs and forces the outputs LOW. The MC74AC163/ 74ACT163 has a Synchronous Reset input that overrides counting and parallel loading and allows the outputs to be simultaneously reset on the rising edge of the clock.
Synchronous Counting and Loading
High-Speed Synchronous Expansion
Typical Count Rate of 125 MHz
Outputs Source/Sink 24 mA
ACT161 and ACT163 Have TTL Compatible Inputs
These devices are available in Pb-free package(s). Specifications herein apply to both standard and Pb-free devices.
| Atributo | Valor |
|---|---|
| Tipo de Encapsulado | SOIC |
| Función Lógica | Contador |
| Familia Lógica | ACT |
| Tipo de Montaje | Montaje superficial |
| Tipo de Contador | Binario |
| Conteo de Pines | 16 |
| Tensión de Alimentación de Funcionamiento Mínima | 4.5 V |
| Tensión de Alimentación Máxima de Funcionamiento | 5.5 V |
| Dimensiones | 10 x 4 x 1.5mm |
| Temperatura de Funcionamiento Mínima | -40 °C |
| Temperatura Máxima de Funcionamiento | 85 °C |
| Tipo de Disparo | Borde tipo D |
| Tipo de Preajuste | Síncrono |
Valoraciones
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