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SN74ALS258AN
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SN74ALS258AN

Product Overview

Category

SN74ALS258AN belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
  • Compatibility with TTL logic levels
  • Four independent 2-input multiplexers in a single package

Package

SN74ALS258AN is available in a 16-pin DIP (Dual In-line Package) format.

Essence

The essence of SN74ALS258AN lies in its ability to efficiently handle data multiplexing and demultiplexing tasks, making it an essential component in various digital systems.

Packaging/Quantity

SN74ALS258AN is typically packaged in tubes or reels, with each tube/reel containing a specific quantity of ICs. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

  • Supply Voltage: 4.5V to 5.5V
  • Input Voltage: 0V to VCC
  • Output Voltage: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay Time: 9ns (max)
  • Input Capacitance: 3pF (typ)
  • Output Capacitance: 15pF (typ)

Detailed Pin Configuration

The pin configuration of SN74ALS258AN is as follows:

┌───┐ A1 -|1 16|- VCC B1 -|2 15|- Y1 A2 -|3 14|- B2 B2 -|4 13|- A3 A3 -|5 12|- B3 B3 -|6 11|- A4 GND -|7 10|- B4 Y4 -|8 9|- G1 └───┘

Functional Features

SN74ALS258AN offers the following functional features:

  • Four independent 2-input multiplexers
  • Select inputs (A and B) for each multiplexer
  • Enable input (G1) to control the output state

Advantages and Disadvantages

Advantages

  • High-speed operation allows for efficient data handling
  • Low power consumption helps in reducing overall energy usage
  • Wide operating voltage range provides flexibility in various applications
  • Compatibility with TTL logic levels ensures seamless integration with existing systems

Disadvantages

  • Limited number of multiplexers (four) in a single package
  • Propagation delay time may affect real-time applications

Working Principles

SN74ALS258AN operates based on the principles of digital multiplexing and demultiplexing. It takes multiple input signals and selects one of them based on the control inputs (A and B). The selected signal is then routed to the output pin (Y). The enable input (G1) controls the output state, allowing the user to enable or disable the multiplexing functionality.

Detailed Application Field Plans

SN74ALS258AN finds applications in various fields, including:

  1. Communication Systems: Used for data routing and switching in telecommunication networks.
  2. Data Acquisition: Enables efficient selection and routing of analog signals in data acquisition systems.
  3. Industrial Automation: Facilitates multiplexing and demultiplexing of control signals in industrial automation processes.
  4. Test and Measurement Equipment: Utilized for signal routing and switching in test and measurement setups.
  5. Consumer Electronics: Integrated into devices requiring data multiplexing, such as audio/video switches and routers.

Detailed and Complete Alternative Models

Some alternative models to SN74ALS258AN include:

  1. CD4051B: 8-channel analog multiplexer/demultiplexer IC.
  2. MC14051B: 8-channel analog multiplexer/demultiplexer IC with TTL-compatible inputs.
  3. 74HC151: 8-input multiplexer IC with TTL-compatible inputs.

These alternative models offer similar functionality and can be used as substitutes depending on specific requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SN74ALS258AN en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of SN74ALS258AN:

  1. Q: What is SN74ALS258AN? A: SN74ALS258AN is a quad 2-input multiplexer with 3-state outputs, commonly used in digital logic circuits.

  2. Q: What is the purpose of SN74ALS258AN? A: SN74ALS258AN is used to select one of four input signals and route it to the output based on the control inputs.

  3. Q: What is the voltage range supported by SN74ALS258AN? A: SN74ALS258AN supports a voltage range of 4.5V to 5.5V.

  4. Q: How many control inputs does SN74ALS258AN have? A: SN74ALS258AN has two control inputs, typically labeled as A and B.

  5. Q: How many output pins does SN74ALS258AN have? A: SN74ALS258AN has four output pins, each corresponding to one of the input signals.

  6. Q: Can SN74ALS258AN handle analog signals? A: No, SN74ALS258AN is designed for digital signals only and cannot handle analog signals.

  7. Q: What is the maximum frequency at which SN74ALS258AN can operate? A: SN74ALS258AN can operate at a maximum frequency of 25 MHz.

  8. Q: Is SN74ALS258AN compatible with TTL logic levels? A: Yes, SN74ALS258AN is compatible with both TTL and CMOS logic levels.

  9. Q: Can SN74ALS258AN be cascaded to increase the number of input signals? A: Yes, multiple SN74ALS258AN chips can be cascaded to increase the number of input signals and select from a larger set.

  10. Q: What are some common applications of SN74ALS258AN? A: SN74ALS258AN is commonly used in data multiplexing, signal routing, bus switching, and general-purpose digital logic circuits.

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