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74ALVC244D,118
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Encyclopedia Entry: 74ALVC244D,118

Product Overview

Category

The 74ALVC244D,118 belongs to the category of integrated circuits (ICs) and specifically falls under the family of logic gates.

Use

This product is primarily used for signal amplification and buffering in digital electronic circuits. It serves as a bi-directional octal buffer/line driver with 3-state outputs.

Characteristics

  • Bi-directional operation allows data transmission in both directions.
  • 3-state outputs enable high impedance when not actively driving the bus.
  • Low power consumption makes it suitable for battery-powered devices.
  • Fast switching speed ensures efficient data transfer.
  • Wide operating voltage range provides flexibility in various applications.

Package and Quantity

The 74ALVC244D,118 is available in a small-outline integrated circuit (SOIC) package. It typically comes in a quantity of 250 units per reel.

Specifications

  • Supply Voltage Range: 1.2V to 3.6V
  • High-Level Input Voltage: 0.7 x VCC
  • Low-Level Input Voltage: 0.3 x VCC
  • High-Level Output Voltage: 0.9 x VCC
  • Low-Level Output Voltage: 0.1 x VCC
  • Maximum Operating Frequency: 200 MHz
  • Propagation Delay Time: 4.5 ns

Pin Configuration

The 74ALVC244D,118 has a total of 20 pins, which are assigned specific functions as follows:

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

Functional Features

The 74ALVC244D,118 offers the following functional features:

  • Bi-directional data transmission: It allows data to be transferred bidirectionally between input and output pins.
  • 3-state outputs: The outputs can be put into a high impedance state, allowing multiple devices to share a common bus without interference.
  • High-speed operation: With a maximum operating frequency of 200 MHz, it ensures efficient data transfer in time-critical applications.
  • Low power consumption: The IC is designed to consume minimal power, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

  • Bi-directional operation enables versatile data transfer.
  • 3-state outputs facilitate bus sharing among multiple devices.
  • Low power consumption prolongs battery life.
  • Fast switching speed ensures efficient data transmission.

Disadvantages

  • Limited voltage range (1.2V to 3.6V) may restrict compatibility with certain systems.
  • Propagation delay time of 4.5 ns may introduce latency in time-sensitive applications.

Working Principles

The 74ALVC244D,118 operates based on the principles of digital logic gates. It consists of eight buffer/driver circuits that can be controlled by an output enable (OE) pin. When the OE pin is active, the input signals are transmitted to the corresponding output pins. Conversely, when the OE pin is inactive, the outputs are put into a high impedance state.

The bi-directional operation allows data to flow in both directions, making it suitable for bidirectional communication between devices. The 3-state outputs enable multiple devices to share a common bus without interference, enhancing system flexibility.

Application Field Plans

The 74ALVC244D,118 finds applications in various fields, including:

  1. Microcontrollers and microprocessors
  2. Communication systems
  3. Data storage devices
  4. Industrial automation
  5. Automotive electronics
  6. Consumer electronics

In microcontrollers and microprocessors, this IC can be used for signal buffering and level shifting between different logic levels. In communication systems, it facilitates data transmission between different modules. Data storage devices benefit from its ability to amplify weak signals and improve signal integrity. Industrial automation and automotive electronics utilize it for reliable data transfer in harsh environments. Lastly, consumer electronics employ it for efficient signal amplification and buffering.

Alternative Models

Several alternative models with similar functionality to the 74ALVC244D,118 include:

  1. SN74LVC244A 2

Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan 74ALVC244D,118 dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of 74ALVC244D,118 in technical solutions:

  1. Q: What is the function of the 74ALVC244D,118? A: The 74ALVC244D,118 is an octal buffer/line driver with 3-state outputs. It is used for signal buffering and driving in digital circuits.

  2. Q: What is the voltage supply range for the 74ALVC244D,118? A: The 74ALVC244D,118 operates with a voltage supply range of 1.65V to 3.6V.

  3. Q: How many input/output pins does the 74ALVC244D,118 have? A: The 74ALVC244D,118 has 8 input pins and 8 output pins, making it an octal buffer.

  4. Q: Can the 74ALVC244D,118 handle bidirectional signals? A: No, the 74ALVC244D,118 is a unidirectional buffer and cannot handle bidirectional signals.

  5. Q: What is the maximum output current that the 74ALVC244D,118 can drive? A: The 74ALVC244D,118 can drive up to 24mA of output current per channel.

  6. Q: Does the 74ALVC244D,118 support hot insertion? A: Yes, the 74ALVC244D,118 supports hot insertion, allowing it to be plugged or unplugged while the circuit is powered.

  7. Q: What is the propagation delay of the 74ALVC244D,118? A: The propagation delay of the 74ALVC244D,118 is typically around 3.5ns.

  8. Q: Can the 74ALVC244D,118 be used in high-speed applications? A: Yes, the 74ALVC244D,118 is designed for high-speed operation and can be used in applications with fast switching requirements.

  9. Q: Is the 74ALVC244D,118 compatible with other logic families? A: Yes, the 74ALVC244D,118 is compatible with both TTL and CMOS logic families.

  10. Q: What is the purpose of the 3-state outputs in the 74ALVC244D,118? A: The 3-state outputs allow the 74ALVC244D,118 to effectively disconnect from the bus, enabling multiple devices to share the same bus without interfering with each other.

Please note that these answers are general and may vary depending on the specific application and requirements.