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MM74HCT240WMX from FAIRCHILD,Fairchild Semiconductor

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MM74HCT240WMX

Manufacturer: FAIRCHILD, NS

Inverting Octal 3-STATE Buffer

Partnumber Manufacturer Quantity Availability
MM74HCT240WMX FAIRCHILD, NS 5213 In Stock

Description and Introduction

Inverting Octal 3-STATE Buffer # **MM74HCT240WMX: High-Performance Octal Buffer/Line Driver with 3-State Outputs**  

The **MM74HCT240WMX** is a high-speed, low-power octal buffer and line driver designed to deliver reliable signal conditioning and driving capabilities in digital systems. This integrated circuit (IC) is part of the **74HCT** series, known for its compatibility with **TTL** logic levels while operating at **CMOS** power levels, making it an excellent choice for mixed-voltage applications.  

## **Key Features**  

- **Octal Buffer/Line Driver:** The MM74HCT240WMX features eight inverting buffers with 3-state outputs, allowing bidirectional data flow and high-impedance states for bus-oriented designs.  
- **High-Speed Operation:** With propagation delays as low as **12 ns**, this IC ensures efficient signal transmission in high-frequency circuits.  
- **Wide Operating Voltage Range:** Supports **4.5V to 5.5V**, making it suitable for **5V TTL** and **CMOS** systems.  
- **Low Power Consumption:** The HCT technology ensures minimal power dissipation, enhancing energy efficiency in battery-operated and power-sensitive applications.  
- **3-State Outputs:** Enables multiple devices to share a common bus without interference, ideal for memory interfacing and data communication systems.  
- **Robust Noise Immunity:** The **HCT** family provides improved noise margins compared to standard CMOS, ensuring stable performance in electrically noisy environments.  

## **Applications**  

The MM74HCT240WMX is widely used in:  
- **Microprocessor and microcontroller interfacing**  
- **Data bus buffering and signal isolation**  
- **Memory address driving**  
- **Industrial control systems**  
- **Telecommunications and networking equipment**  

## **Packaging and Availability**  

Housed in a compact **SOIC-20** package, the MM74HCT240WMX is designed for space-constrained PCB layouts while maintaining excellent thermal and electrical performance.  

For engineers and designers seeking a reliable, high-speed buffer solution with TTL compatibility, the **MM74HCT240WMX** offers a proven combination of performance and efficiency. Its robust design and versatile functionality make it a preferred choice for modern digital systems.

Application Scenarios & Design Considerations

Inverting Octal 3-STATE Buffer

Alternative Part Number

  • SN74HCT240DW --: Pin-compatible HCT octal buffer/line driver in SOIC-20 with equivalent logic function and drive; widely available and directly interchangeable.
  • CD74HCT240M --: HCT-series inverting octal buffer in SOIC-20 with same pinout and TTL-compatible inputs; a solid drop-in alternative.
  • 74HCT240D --: Standard 74HCT240 octal buffer in SOIC-20, same function and pinout, suitable when a generic HCT-series equivalent is acceptable.

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