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MC74HC390A from MOT,Motorola

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MC74HC390A

Manufacturer: MOT

Dual 4-Stage Binary Ripple Counter with Divide-By-2 and Divide-By-5 Sections

Partnumber Manufacturer Quantity Availability
MC74HC390A MOT 1000 In Stock

Description and Introduction

Dual 4-Stage Binary Ripple Counter with Divide-By-2 and Divide-By-5 Sections # **MC74HC390A: A High-Performance Dual Decade Counter for Modern Electronics**  

In the ever-evolving landscape of digital electronics, the **MC74HC390A** stands out as a reliable and efficient dual decade counter, designed to meet the demands of high-speed counting and frequency division applications. Built with advanced high-speed CMOS technology, this integrated circuit (IC) offers superior performance, low power consumption, and robust functionality, making it an ideal choice for engineers and designers working on digital systems.  

## **Key Features and Benefits**  

### **1. Dual Decade Counter Configuration**  
The MC74HC390A integrates two independent **divide-by-2 and divide-by-5 counters**, allowing for flexible **decade counting (÷10) or divide-by-4 and divide-by-5 operations**. This dual functionality enhances design versatility, enabling seamless integration into frequency dividers, digital clocks, timers, and other counting applications.  

### **2. High-Speed Operation**  
With propagation delays as low as **15 ns**, the MC74HC390A ensures rapid signal processing, making it suitable for high-frequency applications. Its compatibility with **HC logic families** ensures smooth interfacing with other digital components, maintaining signal integrity across the system.  

### **3. Low Power Consumption**  
Leveraging CMOS technology, the MC74HC390A operates efficiently with minimal power dissipation, even at high frequencies. This makes it an excellent choice for battery-powered devices and energy-conscious designs.  

### **4. Wide Operating Voltage Range**  
The IC supports a **2V to 6V supply voltage range**, providing flexibility for various digital circuit designs. This broad range ensures compatibility with both **3.3V and 5V systems**, simplifying integration into diverse electronic projects.  

### **5. Asynchronous Reset Functionality**  
Each counter within the MC74HC390A features an **asynchronous master reset (MR) input**, allowing immediate clearing of the count without waiting for a clock pulse. This feature enhances control in time-critical applications.  

## **Applications**  
The MC74HC390A is widely used in digital systems requiring precise counting and frequency division, including:  
- **Digital clocks and timers**  
- **Frequency synthesizers**  
- **Pulse counters**  
- **Industrial automation systems**  
- **Test and measurement equipment**  

## **Conclusion**  
Engineers and designers seeking a high-performance, low-power dual decade counter will find the **MC74HC390A** to be a dependable solution. Its combination of speed, efficiency, and flexibility makes it a valuable component in modern digital electronics, ensuring reliable operation across a variety of applications.  

For those looking to enhance their digital counting systems, the MC74HC390A delivers the precision and performance needed to meet today’s technical challenges.

Application Scenarios & Design Considerations

Dual 4-Stage Binary Ripple Counter with Divide-By-2 and Divide-By-5 Sections

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