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74AHCT244D,112

74AHCT244D,112

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Buffer/Line Driver
  • Characteristics: High-Speed CMOS Logic, Octal Buffer/Line Driver, 3-State Outputs
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: The 74AHCT244D,112 is a high-speed octal buffer/line driver IC with 3-state outputs. It is designed to provide buffering and line driving capabilities for various digital systems.
  • Packaging/Quantity: The 74AHCT244D,112 is available in a standard SOIC package and is typically sold in reels of 2500 units.

Specifications

  • Supply Voltage: 4.5V to 5.5V
  • Logic Family: AHCT
  • Number of Channels: 8
  • Output Type: 3-State
  • Propagation Delay: 6 ns (Max)
  • Operating Temperature Range: -40°C to +125°C

Pin Configuration

The 74AHCT244D,112 has a total of 20 pins, which are assigned 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

  • High-speed operation: The 74AHCT244D,112 is designed to operate at high speeds, making it suitable for applications that require fast data transfer.
  • 3-state outputs: The IC features 3-state outputs, allowing multiple devices to share a common bus without interfering with each other's signals.
  • Wide operating voltage range: With a supply voltage range of 4.5V to 5.5V, the IC can be used in various digital systems powered by different voltage levels.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer. - 3-state outputs facilitate bus sharing among multiple devices. - Wide operating voltage range enhances compatibility.

Disadvantages: - Limited number of channels (8) may not be sufficient for certain applications requiring more inputs/outputs. - Propagation delay of 6 ns (Max) may not be suitable for ultra-high-speed applications.

Working Principles

The 74AHCT244D,112 operates as a buffer/line driver by amplifying and buffering input signals to provide stronger output signals. It uses CMOS technology, which allows for high-speed operation and low power consumption. The 3-state outputs enable the IC to control the flow of data on the output lines, providing flexibility in bus sharing scenarios.

Detailed Application Field Plans

The 74AHCT244D,112 can be used in various applications, including but not limited to:

  1. Microprocessor systems
  2. Data communication systems
  3. Industrial automation
  4. Automotive electronics
  5. Consumer electronics

In microprocessor systems, the IC can be utilized to interface between the microprocessor and peripheral devices, ensuring proper signal levels and driving capability. In data communication systems, it can be employed to buffer and drive signals between different components, such as transceivers and memory modules. In industrial automation and automotive electronics, the IC can be used for signal conditioning and driving in control systems. In consumer electronics, it can be utilized for level shifting and buffering in audio/video equipment, gaming consoles, and more.

Detailed and Complete Alternative Models

  • 74HC244: Similar octal buffer/line driver IC with 3-state outputs, but operates at a higher voltage range (2V to 6V).
  • SN74LS244: Octal buffer/line driver IC with 3-state outputs, designed for TTL logic levels.
  • CD74ACT244: Octal buffer/line driver IC with 3-state outputs, featuring faster propagation delay and wider operating temperature range.

These alternative models offer similar functionality to the 74AHCT244D,112 but may have different specifications and characteristics that suit specific application requirements.

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10个与74AHCT244D,112在技术解决方案中的应用相关的常见问题及解答

Sure! Here are 10 common questions and answers related to the application of 74AHCT244D,112 in technical solutions:

  1. Q: What is the function of the 74AHCT244D,112? A: The 74AHCT244D,112 is an octal buffer/line driver with 3-state outputs. It can be used to amplify and buffer digital signals.

  2. Q: What is the voltage range supported by the 74AHCT244D,112? A: The 74AHCT244D,112 supports a voltage range of 4.5V to 5.5V.

  3. Q: How many channels does the 74AHCT244D,112 have? A: The 74AHCT244D,112 has 8 channels, each capable of buffering one digital signal.

  4. Q: Can the 74AHCT244D,112 handle high-speed signals? A: Yes, the 74AHCT244D,112 is designed to handle high-speed signals with a maximum propagation delay of 7 ns.

  5. Q: What is the maximum output current of the 74AHCT244D,112? A: The 74AHCT244D,112 can provide a maximum output current of 35 mA per channel.

  6. Q: Can the 74AHCT244D,112 be used for bidirectional communication? A: No, the 74AHCT244D,112 is a unidirectional buffer and cannot be used for bidirectional communication.

  7. Q: Is the 74AHCT244D,112 compatible with TTL logic levels? A: Yes, the 74AHCT244D,112 is compatible with both TTL and CMOS logic levels.

  8. Q: Can the 74AHCT244D,112 be used in automotive applications? A: Yes, the 74AHCT244D,112 is qualified for automotive applications and can operate within the specified temperature range.

  9. Q: What is the power supply voltage required for the 74AHCT244D,112? A: The 74AHCT244D,112 requires a power supply voltage of 4.5V to 5.5V.

  10. Q: Can the 74AHCT244D,112 drive capacitive loads? A: Yes, the 74AHCT244D,112 can drive capacitive loads up to 50 pF without additional external components.

Please note that these answers are general and may vary depending on specific application requirements. It's always recommended to refer to the datasheet and consult with an expert when designing technical solutions.