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MM74HC688N from FAIRCHILD,Fairchild Semiconductor

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MM74HC688N

Manufacturer: FAIRCHILD

8-Bit Magnitude Comparator (Equality Detector)

Partnumber Manufacturer Quantity Availability
MM74HC688N FAIRCHILD 500 In Stock

Description and Introduction

8-Bit Magnitude Comparator (Equality Detector) # **MM74HC688N: A High-Speed 8-Bit Magnitude Comparator for Precision Applications**  

The **MM74HC688N** is a high-performance 8-bit magnitude comparator designed for digital systems requiring fast and accurate data comparison. Built with advanced high-speed CMOS technology, this IC delivers reliable operation while maintaining low power consumption, making it an excellent choice for embedded systems, microcontrollers, and logic control applications.  

## **Key Features**  

- **8-Bit Comparison:** The MM74HC688N efficiently compares two 8-bit binary words (A and B) and provides outputs indicating whether A is greater than, less than, or equal to B.  
- **High-Speed Operation:** With propagation delays as low as **18 ns**, this comparator ensures rapid decision-making in time-critical applications.  
- **Low Power Consumption:** Utilizing CMOS technology, the IC minimizes power dissipation, making it suitable for battery-operated devices.  
- **Wide Operating Voltage Range (2V–6V):** Supports compatibility with both 3.3V and 5V logic systems.  
- **TTL-Compatible Inputs/Outputs:** Ensures seamless integration with existing TTL-based circuits.  
- **Enable Function:** The **E̅n̅** (Enable) input allows for easy cascading of multiple comparators, expanding comparison capabilities for larger data words.  

## **Applications**  

The MM74HC688N is widely used in:  
- **Microprocessor-based systems** for arithmetic and logic operations.  
- **Data processing units** requiring real-time comparison.  
- **Industrial control systems** for monitoring and decision-making.  
- **Embedded designs** where efficient power usage and speed are critical.  

## **Reliability and Performance**  

With robust noise immunity and a stable operating temperature range, the MM74HC688N ensures consistent performance in demanding environments. Its compact DIP-20 package facilitates easy prototyping and integration into existing circuit designs.  

For engineers and developers seeking a dependable, high-speed comparator, the **MM74HC688N** delivers precision and efficiency in a single integrated solution.

Application Scenarios & Design Considerations

8-Bit Magnitude Comparator (Equality Detector)

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