ON Semiconductor
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MC74AC257NG
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MC74AC257NG

Product Overview

Category

MC74AC257NG belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
  • Compatibility with TTL logic levels

Package

MC74AC257NG is available in a 16-pin DIP (Dual In-line Package) format.

Essence

The essence of MC74AC257NG lies in its ability to efficiently handle data multiplexing and demultiplexing tasks in digital circuits.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

  • Supply Voltage: 2V to 6V
  • Input Voltage: 0V to VCC
  • Output Voltage: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Logic Family: AC
  • Number of Channels: 4

Detailed Pin Configuration

  1. A0 (Input)
  2. A1 (Input)
  3. A2 (Input)
  4. A3 (Input)
  5. B (Input)
  6. GND (Ground)
  7. Y0 (Output)
  8. Y1 (Output)
  9. Y2 (Output)
  10. Y3 (Output)
  11. OE (Output Enable)
  12. VCC (Supply Voltage)
  13. Y4 (Output)
  14. Y5 (Output)
  15. Y6 (Output)
  16. Y7 (Output)

Functional Features

  • Data multiplexing and demultiplexing
  • Output enable/disable control
  • High-speed operation for efficient data handling
  • Wide operating voltage range for compatibility with various systems

Advantages and Disadvantages

Advantages

  • High-speed operation allows for quick data processing.
  • Low power consumption helps in energy-efficient designs.
  • Wide operating voltage range enables compatibility with different systems.
  • Compatibility with TTL logic levels simplifies integration into existing circuits.

Disadvantages

  • Limited number of channels (4) may restrict certain applications requiring more channels.
  • Not suitable for high-voltage applications due to the specified supply voltage range.

Working Principles

MC74AC257NG operates based on multiplexing and demultiplexing principles. It takes multiple input signals and selects one of them based on control inputs. The selected input is then routed to the corresponding output pin. The output enable/disable control allows for enabling or disabling the output pins as required.

Detailed Application Field Plans

MC74AC257NG finds applications in various digital electronic systems, including but not limited to: - Data communication systems - Multiplexers and demultiplexers - Address decoding circuits - Memory systems - Control units

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to MC74AC257NG are: - 74HC257 - CD74HC257E - SN74LS257N - CD74HCT257E - 74ACT257

These alternative models offer similar functionality and characteristics, providing options for different design requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MC74AC257NG v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MC74AC257NG in technical solutions:

  1. Q: What is MC74AC257NG? A: MC74AC257NG is a quad 2-input multiplexer with 3-state outputs, commonly used in digital logic circuits.

  2. Q: What is the purpose of MC74AC257NG? A: MC74AC257NG is used to select one of four data inputs and route it to a single output based on the control inputs.

  3. Q: What voltage levels does MC74AC257NG support? A: MC74AC257NG supports a wide range of voltage levels, typically between 2V and 6V.

  4. Q: Can MC74AC257NG handle high-speed signals? A: Yes, MC74AC257NG is designed to operate at high speeds, making it suitable for applications requiring fast switching.

  5. Q: How many control inputs does MC74AC257NG have? A: MC74AC257NG has two control inputs, which determine the selection of the data inputs.

  6. Q: What is the maximum operating frequency of MC74AC257NG? A: The maximum operating frequency of MC74AC257NG is typically around 100 MHz.

  7. Q: Can MC74AC257NG be cascaded to increase the number of inputs? A: Yes, multiple MC74AC257NG chips can be cascaded together to increase the number of inputs and outputs.

  8. Q: Does MC74AC257NG have built-in protection features? A: MC74AC257NG provides built-in diode clamps to protect against electrostatic discharge (ESD) damage.

  9. Q: What is the power supply voltage range for MC74AC257NG? A: MC74AC257NG operates within a power supply voltage range of 2V to 6V.

  10. Q: Can MC74AC257NG be used in both digital and analog applications? A: MC74AC257NG is primarily designed for digital applications, but it can also be used in certain analog applications with appropriate considerations.

Please note that the answers provided here are general and may vary depending on specific datasheet specifications and application requirements.