ON Semiconductor
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DM74LS244WM
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DM74LS244WM

Product Overview

Category

DM74LS244WM belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in electronic devices for signal amplification and buffering.

Characteristics

  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
  • Compatibility with various logic families

Package

DM74LS244WM is available in a 20-pin wide SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of DM74LS244WM lies in its ability to provide high-speed signal amplification and buffering, making it an essential component in many electronic devices.

Packaging/Quantity

DM74LS244WM is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of ICs. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

  • Supply Voltage: 4.75V to 5.25V
  • Operating Temperature Range: -40°C to +85°C
  • Input Voltage High: 2.0V (min), 0.8V (max)
  • Input Voltage Low: 0.8V (min), 0.4V (max)
  • Output Voltage High: 2.7V (min), 2.4V (max)
  • Output Voltage Low: 0.5V (min), 0.1V (max)

Detailed Pin Configuration

DM74LS244WM has a total of 20 pins, which are numbered as follows:

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

Functional Features

  • High-speed signal amplification and buffering
  • Non-inverting outputs
  • 3-state outputs for bus-oriented applications
  • TTL (Transistor-Transistor Logic) compatible inputs

Advantages and Disadvantages

Advantages

  • High-speed operation allows for efficient signal processing.
  • Low power consumption helps in reducing energy usage.
  • Wide operating voltage range ensures compatibility with various systems.
  • Compatibility with different logic families enables versatile applications.

Disadvantages

  • Limited number of input/output channels compared to some other ICs.
  • May require additional components for specific applications, increasing complexity.

Working Principles

DM74LS244WM operates based on the principles of signal amplification and buffering. It takes input signals, amplifies them, and provides buffered output signals that can be used by other components in an electronic system.

Detailed Application Field Plans

DM74LS244WM finds applications in various fields, including:

  1. Communication Systems: Used for signal amplification and buffering in data transmission circuits.
  2. Industrial Automation: Employed in control systems for signal conditioning and interfacing.
  3. Automotive Electronics: Utilized in vehicle electronics for signal processing and communication.
  4. Consumer Electronics: Integrated into audio/video equipment for signal amplification and buffering.
  5. Computer Hardware: Incorporated in computer systems for data transfer and signal integrity.

Detailed and Complete Alternative Models

Some alternative models to DM74LS244WM include:

  1. SN74LS244N: Similar functionality and characteristics, available in a DIP (Dual Inline Package) format.
  2. CD74LS244E: Equivalent performance, offered in a PDIP (Plastic Dual Inline Package) package.
  3. MC74LS244D: Comparable specifications, packaged in a SOIC format.

These alternative models can be used as substitutes for DM74LS244WM based on specific requirements and availability.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací DM74LS244WM v technických řešeních

Sure! Here are 10 common questions and answers related to the application of DM74LS244WM in technical solutions:

  1. Question: What is DM74LS244WM?
    - Answer: DM74LS244WM is a specific type of integrated circuit (IC) known as a buffer/line driver. It is commonly used for signal amplification and buffering in digital circuits.

  2. Question: What is the purpose of using DM74LS244WM in technical solutions?
    - Answer: The main purpose of using DM74LS244WM is to ensure proper signal transmission between different components or subsystems in a digital circuit, preventing signal degradation and maintaining signal integrity.

  3. Question: How many channels does DM74LS244WM have?
    - Answer: DM74LS244WM has 8 channels, which means it can handle up to 8 different input/output signals simultaneously.

  4. Question: What is the voltage range supported by DM74LS244WM?
    - Answer: DM74LS244WM supports a voltage range of 4.75V to 5.25V, making it compatible with standard TTL (Transistor-Transistor Logic) levels.

  5. Question: Can DM74LS244WM be used with CMOS (Complementary Metal-Oxide-Semiconductor) logic?
    - Answer: Yes, DM74LS244WM can be used with CMOS logic, but level shifting may be required due to the different voltage levels used by CMOS.

  6. Question: What is the maximum output current of DM74LS244WM?
    - Answer: The maximum output current of DM74LS244WM is typically around 15mA per channel.

  7. Question: Can DM74LS244WM be used for bidirectional communication?
    - Answer: No, DM74LS244WM is a unidirectional buffer/line driver, meaning it can only amplify and buffer signals in one direction.

  8. Question: Is DM74LS244WM suitable for high-speed applications?
    - Answer: DM74LS244WM is not specifically designed for high-speed applications. It is more commonly used in moderate-speed digital circuits.

  9. Question: Can DM74LS244WM be cascaded to increase the number of channels?
    - Answer: Yes, multiple DM74LS244WM ICs can be cascaded together to increase the number of channels if needed.

  10. Question: Are there any specific precautions to consider when using DM74LS244WM?
    - Answer: It is important to ensure proper power supply decoupling and avoid exceeding the maximum voltage and current ratings specified in the datasheet. Additionally, careful consideration should be given to signal routing and termination to minimize noise and signal reflections.