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MC74ACT161DR2 from MOT,Motorola

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MC74ACT161DR2

Manufacturer: MOT, MOTORML

Presetable Binary Counter

Partnumber Manufacturer Quantity Availability
MC74ACT161DR2 MOT, MOTORML 3636 In Stock

Description and Introduction

Presetable Binary Counter # **MC74ACT161DR2: A High-Performance Synchronous Binary Counter for Modern Electronics**  

In the fast-paced world of digital electronics, reliable and efficient components are essential for ensuring seamless system performance. The **MC74ACT161DR2** stands out as a high-speed synchronous 4-bit binary counter, offering precision, speed, and versatility for a wide range of applications. Designed with advanced CMOS technology, this component delivers the robustness and efficiency required for modern circuit designs.  

## **Key Features and Benefits**  

### **1. High-Speed Operation**  
The MC74ACT161DR2 operates at impressive speeds, making it ideal for applications where timing and synchronization are critical. With propagation delays as low as **8.5 ns**, this counter ensures rapid response times, enhancing the performance of high-frequency digital systems.  

### **2. Synchronous Counting with Parallel Load**  
Unlike ripple counters, the MC74ACT161DR2 features synchronous counting, allowing all flip-flops to update simultaneously with the clock signal. This eliminates timing skew and ensures accurate counting. Additionally, the **parallel load capability** enables preset values to be loaded into the counter, providing flexibility in system initialization.  

### **3. Fully Programmable Functionality**  
The counter includes **asynchronous clear (CLR)** and **load (LOAD)** inputs, allowing for easy reset and data entry. The **enable inputs (ENP and ENT)** provide control over counting operations, making it adaptable for complex state machines and sequential logic circuits.  

### **4. Low Power Consumption**  
Built with **ACT (Advanced CMOS Technology)**, the MC74ACT161DR2 combines high-speed performance with low power consumption. This makes it suitable for battery-operated and power-sensitive applications without compromising efficiency.  

### **5. Wide Operating Voltage Range**  
Supporting a **voltage range of 4.5V to 5.5V**, this counter is compatible with standard TTL and CMOS logic levels, ensuring seamless integration into existing designs.  

## **Applications**  

The MC74ACT161DR2 is widely used in digital systems requiring precise counting and timing functions, including:  
- **Frequency dividers and clock generators**  
- **Digital signal processing (DSP) systems**  
- **Microcontroller and FPGA-based designs**  
- **Industrial automation and control systems**  
- **Test and measurement equipment**  

## **Reliability and Packaging**  

Available in a **16-pin SOIC package**, the MC74ACT161DR2 is designed for compact and efficient PCB layouts. Its robust construction ensures durability in demanding environments, making it a dependable choice for both commercial and industrial applications.  

## **Conclusion**  

For engineers and designers seeking a high-performance synchronous counter, the **MC74ACT161DR2** delivers speed, precision, and flexibility in a single integrated circuit. Its advanced features, low power consumption, and compatibility with standard logic levels make it an excellent choice for modern digital systems. Whether used in timing circuits, frequency division, or sequential logic, this component provides the reliability and efficiency needed for cutting-edge electronic designs.  

By incorporating the MC74ACT161DR2 into your next project, you can achieve accurate counting operations while maintaining high-speed performance and energy efficiency.

Application Scenarios & Design Considerations

Presetable Binary Counter

Alternative Part Number

  • CD74ACT161E --: Same ACT161 synchronous 4-bit counter function with identical pinout, from the original ACT logic family; different prefix and package (PDIP) make it clearly distinguishable.
  • SN74ACT161N --: Direct functional equivalent 4-bit synchronous binary counter in the ACT family with compatible logic levels and pinout, using a different series prefix.
  • 74ACT161PC --: Equivalent ACT161 counter offered under the standard 74ACT generic naming with the same function and pinout, distinct from the MC74ACT161DR2 part number.
  • CD74ACT161M --: Same ACT161 synchronous 4-bit counter function in a different series prefix (CD vs MC), pin-compatible and widely available.

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