ON Semiconductor
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MC74AC244MELG
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MC74AC244MELG

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Signal Buffer/Line Driver
  • Characteristics: High-speed, low-power, octal buffer with 3-state outputs
  • Package: SOIC-20
  • Essence: The MC74AC244MELG is a versatile integrated circuit that provides buffering and line driving capabilities for digital signals.
  • Packaging/Quantity: Available in reels of 2500 units

Specifications

  • Supply Voltage: 2.0V to 6.0V
  • Input Voltage: 0V to VCC
  • Output Voltage: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay: 5ns (typical)
  • Output Drive Capability: ±24mA

Detailed Pin Configuration

The MC74AC244MELG has a total of 20 pins, which are assigned as follows:

  1. GND (Ground)
  2. A1 (Input A1)
  3. B1 (Input B1)
  4. Y1 (Output Y1)
  5. A2 (Input A2)
  6. B2 (Input B2)
  7. Y2 (Output Y2)
  8. GND (Ground)
  9. Y3 (Output Y3)
  10. B3 (Input B3)
  11. A3 (Input A3)
  12. GND (Ground)
  13. Y4 (Output Y4)
  14. B4 (Input B4)
  15. A4 (Input A4)
  16. VCC (Positive Power Supply)
  17. OE (Output Enable)
  18. Y5 (Output Y5)
  19. B5 (Input B5)
  20. A5 (Input A5)

Functional Features

  • High-speed operation allows for efficient signal buffering and line driving.
  • 3-state outputs provide flexibility in controlling the output state.
  • Wide supply voltage range enables compatibility with various digital systems.
  • Low power consumption makes it suitable for battery-powered devices.
  • Robust design ensures reliable performance in different operating conditions.

Advantages and Disadvantages

Advantages

  • Fast propagation delay ensures minimal signal distortion.
  • Versatile input and output voltage ranges enhance compatibility.
  • 3-state outputs allow for easy bus sharing and multiplexing.
  • Low power consumption extends battery life in portable applications.
  • Reliable performance in a wide temperature range (-40°C to +85°C).

Disadvantages

  • Limited output drive capability may not be suitable for high-current applications.
  • The SOIC-20 package may require additional space compared to smaller packages.
  • Not suitable for applications requiring bidirectional signal transmission.

Working Principles

The MC74AC244MELG operates as a buffer and line driver by amplifying and shaping digital signals. It accepts input signals from the A1-A5 and B1-B5 pins and provides corresponding buffered outputs on the Y1-Y5 pins. The OE pin controls the output enable/disable function, allowing the outputs to be put in a high-impedance state when disabled.

Detailed Application Field Plans

The MC74AC244MELG 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

  1. SN74AC244: Similar octal buffer IC from Texas Instruments
  2. CD74AC244: Octal buffer IC from Texas Instruments with slightly different specifications
  3. 74HC244: Octal buffer IC from NXP Semiconductors with different characteristics

These alternative models offer similar functionality and can be used as substitutes for the MC74AC244MELG in various applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MC74AC244MELG v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MC74AC244MELG:

  1. Question: What is MC74AC244MELG?
    Answer: MC74AC244MELG is a specific model of an octal buffer/line driver integrated circuit (IC) manufactured by ON Semiconductor.

  2. Question: What is the purpose of MC74AC244MELG?
    Answer: The purpose of MC74AC244MELG is to provide buffering and line driving capabilities for digital signals in various technical solutions.

  3. Question: What voltage levels does MC74AC244MELG support?
    Answer: MC74AC244MELG supports a wide range of voltage levels, typically between 2V and 6V.

  4. Question: How many input/output pins does MC74AC244MELG have?
    Answer: MC74AC244MELG has 8 input pins and 8 output pins, making it suitable for applications requiring multiple signal lines.

  5. Question: Can MC74AC244MELG be used for level shifting?
    Answer: Yes, MC74AC244MELG can be used for level shifting as it can handle different voltage levels on its inputs and outputs.

  6. Question: What is the maximum frequency at which MC74AC244MELG can operate?
    Answer: MC74AC244MELG can operate at frequencies up to several hundred megahertz (MHz), depending on the specific application and conditions.

  7. Question: Is MC74AC244MELG compatible with other logic families?
    Answer: Yes, MC74AC244MELG is compatible with a wide range of logic families, including TTL, CMOS, and other AC series logic.

  8. Question: Can MC74AC244MELG be used for bidirectional communication?
    Answer: No, MC74AC244MELG is a unidirectional buffer/line driver and does not support bidirectional communication. For bidirectional applications, a different IC should be used.

  9. Question: What is the power supply voltage range for MC74AC244MELG?
    Answer: The power supply voltage range for MC74AC244MELG is typically between 2V and 6V.

  10. Question: Are there any specific precautions to consider when using MC74AC244MELG?
    Answer: Yes, some precautions include avoiding excessive input voltage levels, ensuring proper decoupling capacitors are used, and following the recommended operating conditions provided in the datasheet.

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