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MM74HC240WM from FAIRCHIL,Fairchild Semiconductor

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MM74HC240WM

Manufacturer: FAIRCHIL, FAI, NS

Inverting Octal 3-STATE Buffer

Partnumber Manufacturer Quantity Availability
MM74HC240WM FAIRCHIL, FAI, NS 1241 In Stock

Description and Introduction

Inverting Octal 3-STATE Buffer # **Introducing the MM74HC240WM: A High-Speed Octal Buffer/Line Driver with 3-State Outputs**  

The **MM74HC240WM** is a high-performance integrated circuit designed for digital signal buffering and line driving applications. As part of the **74HC series**, this component leverages advanced CMOS technology to deliver fast switching speeds, low power consumption, and robust noise immunity—making it an ideal choice for modern digital systems.  

## **Key Features**  

- **Octal Buffer/Line Driver:** The MM74HC240WM integrates eight inverting buffers with 3-state outputs, allowing efficient signal isolation and bus interfacing.  
- **High-Speed Operation:** With propagation delays as low as **12 ns**, this IC ensures rapid signal transmission, making it suitable for high-frequency applications.  
- **3-State Outputs:** The outputs can be placed in a high-impedance state, enabling seamless bus sharing in multi-device configurations.  
- **Wide Operating Voltage Range (2V to 6V):** Compatible with both **5V TTL** and **3.3V CMOS** logic levels, providing flexibility in mixed-voltage designs.  
- **Low Power Consumption:** The HC (High-Speed CMOS) technology ensures minimal power dissipation, enhancing energy efficiency.  
- **Robust Noise Immunity:** Designed to resist electromagnetic interference, ensuring reliable performance in noisy environments.  

## **Applications**  

The MM74HC240WM is widely used in:  
- **Microprocessor and microcontroller interfacing**  
- **Data bus buffering and signal conditioning**  
- **Memory address driving**  
- **Industrial control systems**  
- **Communication equipment**  

Available in a **SOIC-20 package**, the MM74HC240WM offers a compact footprint while maintaining excellent thermal and electrical characteristics. Whether for prototyping or production, this IC provides a dependable solution for digital signal management.  

Engineers and designers seeking a high-speed, low-power buffer with 3-state control will find the **MM74HC240WM** to be a versatile and reliable component for their next project.

Application Scenarios & Design Considerations

Inverting Octal 3-STATE Buffer

Alternative Part Number

  • SN74HC240N --: Same 74HC240 octal buffer/inverter function from a different series prefix, widely available and pin-compatible in DIP package.
  • CD74HC240E --: Harris/Intersil-style CD74HC series equivalent with identical logic function and drive characteristics, good second source.
  • MC74HC240ADG --: Motorola/ON MC74HC series octal buffer with matching HC240 function and similar electrical specs, suitable drop-in alternative.
  • SN74HC240DW --: Same 74HC240 octal inverting buffer function in a 20-pin SOIC wide package, pin-compatible and widely available from a major logic supplier.
  • MC74HC240ADWR2G --: Equivalent 74HC240 octal buffer/line driver with inverting outputs in SOIC-20W, direct functional and package replacement.
  • CD74HC240M --: Harris/Intersil-lineage 74HC240 in SOIC-20, same logic family and pinout, suitable drop-in alternative.

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