Toshiba Semiconductor and Storage
Obrázek může být reprezentace.
Viz Specifikace pro podrobnosti o produktu.
74VHC240FT
Zobrazit detail DataSheets

Encyclopedia Entry: 74VHC240FT

Product Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Logic Gate Buffer/Driver
  • Characteristics: High-Speed, Low-Power, Octal Bus Buffer/Line Driver
  • Package: FT Package (Thin Shrink Small Outline Package)
  • Essence: Buffering and driving signals in digital circuits
  • Packaging/Quantity: Available in reels or tubes, typically sold in quantities of 250 or 3000 units

Specifications

The 74VHC240FT is a high-speed octal bus buffer/line driver integrated circuit. It operates on a supply voltage range of 2.0V to 5.5V, making it suitable for various digital applications. This IC features eight non-inverting buffers with three-state outputs, allowing bidirectional communication between different parts of a digital system.

Detailed Pin Configuration

The 74VHC240FT has a total of 20 pins, each serving a specific purpose. The pin configuration is as follows:

  1. GND (Ground)
  2. A1 (Input/Output)
  3. Y1 (Output)
  4. A2 (Input/Output)
  5. Y2 (Output)
  6. A3 (Input/Output)
  7. Y3 (Output)
  8. A4 (Input/Output)
  9. Y4 (Output)
  10. A5 (Input/Output)
  11. Y5 (Output)
  12. A6 (Input/Output)
  13. Y6 (Output)
  14. A7 (Input/Output)
  15. Y7 (Output)
  16. A8 (Input/Output)
  17. Y8 (Output)
  18. OE (Output Enable)
  19. VCC (Supply Voltage)
  20. GND (Ground)

Functional Features

The 74VHC240FT offers the following functional features:

  • High-speed operation, making it suitable for time-critical applications
  • Low-power consumption, ensuring energy efficiency
  • Three-state outputs allow bidirectional communication and bus sharing
  • Schmitt-trigger inputs provide hysteresis and improve noise immunity
  • Wide supply voltage range enables compatibility with various digital systems

Advantages and Disadvantages

Advantages of the 74VHC240FT include:

  • High-speed operation enhances system performance
  • Low-power consumption reduces energy requirements
  • Three-state outputs facilitate bus sharing and bidirectional communication
  • Wide supply voltage range increases versatility

Disadvantages of the 74VHC240FT include:

  • Limited number of buffers (8) may not be sufficient for larger systems
  • Sensitivity to electrostatic discharge (ESD) requires proper handling precautions

Working Principles

The 74VHC240FT operates by buffering and driving signals in digital circuits. It takes input signals from the A1-A8 pins and amplifies them to provide output signals at the Y1-Y8 pins. The OE pin controls the output enable/disable function, allowing the user to control the flow of data through the IC.

Detailed Application Field Plans

The 74VHC240FT is commonly used in various digital systems and applications, including:

  1. Microcontrollers and microprocessors
  2. Data communication systems
  3. Memory interfaces
  4. Industrial automation
  5. Automotive electronics
  6. Consumer electronics

Detailed and Complete Alternative Models

Alternative models that can be considered as alternatives to the 74VHC240FT include:

  1. 74HCT240: Similar functionality but operates at a different voltage range (4.5V to 5.5V)
  2. SN74LV240A: Low-voltage version with similar characteristics
  3. CD74ACT240: Higher-speed alternative with different pin configuration

These alternative models offer similar functionality but may have variations in voltage range, speed, or pin configuration.

Word count: 411 words

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 74VHC240FT v technických řešeních

Sure! Here are 10 common questions and answers related to the application of 74VHC240FT in technical solutions:

  1. Q: What is the 74VHC240FT? A: The 74VHC240FT is a high-speed octal buffer/line driver with 3-state outputs, commonly used in digital logic applications.

  2. Q: What is the maximum operating voltage for the 74VHC240FT? A: The maximum operating voltage for the 74VHC240FT is typically 5.5 volts.

  3. Q: Can the 74VHC240FT be used as an input buffer? A: Yes, the 74VHC240FT can be used as an input buffer to amplify and condition signals before they are processed by other components.

  4. Q: How many inputs and outputs does the 74VHC240FT have? A: The 74VHC240FT has 8 inputs and 8 outputs, making it suitable for applications that require multiple signal lines.

  5. Q: What is the purpose of the 3-state outputs on the 74VHC240FT? A: The 3-state outputs allow the device to be effectively disconnected from the bus, enabling multiple devices to share the same bus without interfering with each other.

  6. Q: Can the 74VHC240FT drive capacitive loads? A: Yes, the 74VHC240FT is designed to drive capacitive loads up to a certain limit specified in the datasheet.

  7. Q: Is the 74VHC240FT compatible with TTL logic levels? A: Yes, the 74VHC240FT is compatible with both TTL and CMOS logic levels, making it versatile for various interfacing applications.

  8. Q: What is the typical propagation delay of the 74VHC240FT? A: The typical propagation delay of the 74VHC240FT is specified in the datasheet and depends on the operating conditions.

  9. Q: Can the 74VHC240FT be used in high-speed applications? A: Yes, the 74VHC240FT is designed for high-speed operation and can be used in applications that require fast signal switching.

  10. Q: Are there any specific precautions to consider when using the 74VHC240FT? A: It is important to ensure proper power supply decoupling and observe recommended operating conditions mentioned in the datasheet to achieve optimal performance with the 74VHC240FT.

Please note that these answers are general and may vary depending on the specific application and requirements. Always refer to the datasheet and consult with technical experts for accurate information.