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74ACT11257DW
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Encyclopedia Entry: 74ACT11257DW

Product Overview

Category

The 74ACT11257DW belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronic systems for data multiplexing and demultiplexing applications.

Characteristics

  • The 74ACT11257DW is a quad 2-input multiplexer/demultiplexer with three-state outputs.
  • It operates on a wide voltage range, typically between 4.5V and 5.5V.
  • This IC offers high-speed operation, making it suitable for applications requiring fast data switching.
  • It has a low power consumption, ensuring efficient energy usage.
  • The 74ACT11257DW is designed to be compatible with TTL (Transistor-Transistor Logic) inputs and outputs.

Package and Quantity

The 74ACT11257DW is available in a standard 24-pin SOIC (Small Outline Integrated Circuit) package. It is typically sold in reels or tubes containing multiple units.

Essence

The essence of the 74ACT11257DW lies in its ability to efficiently multiplex and demultiplex data signals in digital systems. It provides a compact and reliable solution for managing data transmission.

Specifications

  • Supply Voltage Range: 4.5V to 5.5V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay Time: 6 ns (max)
  • Output Current: ±24 mA

Detailed Pin Configuration

The 74ACT11257DW features a 24-pin configuration. Here is a detailed pinout description:

  1. A0: Input A0
  2. B0: Input B0
  3. Y0: Output Y0
  4. A1: Input A1
  5. B1: Input B1
  6. Y1: Output Y1
  7. GND: Ground
  8. Y2: Output Y2
  9. B2: Input B2
  10. A2: Input A2
  11. Y3: Output Y3
  12. B3: Input B3
  13. A3: Input A3
  14. VCC: Power Supply 15-24: Not connected (NC)

Functional Features

The 74ACT11257DW offers the following functional features:

  • Quad 2-input multiplexer/demultiplexer with three-state outputs.
  • Allows data selection between four input sources using control signals.
  • Provides high-speed operation for efficient data switching.
  • Supports TTL compatibility for seamless integration into existing systems.
  • Three-state outputs enable bus sharing and reduce signal interference.

Advantages and Disadvantages

Advantages

  • High-speed operation allows for rapid data transmission.
  • Low power consumption ensures energy efficiency.
  • Compact size and standard package facilitate easy integration into electronic systems.
  • Wide voltage range compatibility enhances versatility.
  • Three-state outputs enable efficient bus sharing.

Disadvantages

  • Limited to quad 2-input multiplexing/demultiplexing applications.
  • Requires additional external components for complex data routing scenarios.
  • May not be suitable for applications requiring higher voltage ranges.

Working Principles

The 74ACT11257DW operates based on the principles of digital multiplexing and demultiplexing. It uses control signals to select one of the four input sources and routes the selected data to the output. The three-state outputs allow multiple devices to share a common bus, reducing signal interference.

Detailed Application Field Plans

The 74ACT11257DW finds application in various digital systems, including but not limited to: - Data communication systems - Networking equipment - Industrial automation - Consumer electronics - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74ACT11257DW are: - SN74ACT11257D - MC74ACT11257DW - CD74ACT11257E

These alternatives can be considered based on specific requirements, availability, and compatibility with existing systems.

In conclusion, the 74ACT11257DW is a versatile integrated circuit used for data multiplexing and demultiplexing applications. Its high-speed operation, low power consumption, and compact size make it suitable for various digital systems. However, it is important to consider alternative models based on specific needs and compatibility requirements.

Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi 74ACT11257DW dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of 74ACT11257DW in technical solutions:

  1. Q: What is the 74ACT11257DW? A: The 74ACT11257DW is a quad 2-input multiplexer with non-inverting outputs, commonly used in digital logic circuits.

  2. Q: What is the purpose of a multiplexer? A: A multiplexer is used to select one of several input signals and route it to a single output line.

  3. Q: How many inputs does the 74ACT11257DW have? A: The 74ACT11257DW has four inputs, labeled A0, A1, A2, and A3.

  4. Q: Can I use the 74ACT11257DW as a demultiplexer? A: No, the 74ACT11257DW is specifically designed as a multiplexer and cannot be used as a demultiplexer.

  5. Q: What is the voltage range supported by the 74ACT11257DW? A: The 74ACT11257DW operates with a voltage range of 2V to 6V.

  6. Q: What is the maximum operating frequency of the 74ACT11257DW? A: The 74ACT11257DW can operate at frequencies up to 125 MHz.

  7. Q: Does the 74ACT11257DW have any built-in protection features? A: Yes, the 74ACT11257DW has built-in ESD (Electrostatic Discharge) protection on all inputs and outputs.

  8. Q: Can I cascade multiple 74ACT11257DW chips together? A: Yes, you can cascade multiple 74ACT11257DW chips to increase the number of inputs and outputs.

  9. Q: What is the power supply voltage required for the 74ACT11257DW? A: The 74ACT11257DW requires a power supply voltage of 5V.

  10. Q: Are there any recommended decoupling capacitors for the 74ACT11257DW? A: Yes, it is recommended to use decoupling capacitors (typically 0.1µF) between VCC and GND pins to stabilize the power supply.

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