NXP USA Inc.
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74HC258DB,112
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74HC258DB,112

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Multiplexer/Demultiplexer
  • Characteristics: High-speed operation, low power consumption
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: A multiplexer/demultiplexer IC that allows multiple data inputs to be selected and routed to a single output line.
  • Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

  • Supply Voltage Range: 2V to 6V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +125°C
  • Maximum Propagation Delay: 20 ns
  • Maximum Quiescent Current: 4 μA

Pin Configuration

The 74HC258DB,112 IC has the following pin configuration:

  1. GND (Ground)
  2. I0 (Data Input 0)
  3. I1 (Data Input 1)
  4. I2 (Data Input 2)
  5. I3 (Data Input 3)
  6. E (Enable Input)
  7. Y (Output)
  8. VCC (Supply Voltage)

Functional Features

  • 4-input multiplexer/demultiplexer functionality
  • Active LOW enable input for selecting between multiplexing and demultiplexing modes
  • High-speed operation allows for efficient data routing
  • Low power consumption ensures energy efficiency

Advantages and Disadvantages

Advantages: - Versatile functionality as both a multiplexer and demultiplexer - High-speed operation enables quick data selection and routing - Low power consumption reduces energy usage

Disadvantages: - Limited number of inputs (4) may not be sufficient for complex applications - Lack of built-in protection features against voltage spikes or ESD events

Working Principles

The 74HC258DB,112 is a multiplexer/demultiplexer IC that operates based on the input provided to its enable pin (E). When the enable input is HIGH, the IC functions as a multiplexer, allowing one of the four data inputs (I0-I3) to be selected and routed to the output pin (Y). Conversely, when the enable input is LOW, the IC acts as a demultiplexer, distributing the input signal from pin Y to one of the four output pins (I0-I3).

Detailed Application Field Plans

The 74HC258DB,112 IC finds applications in various fields, including:

  1. Data communication systems: Used for data routing and selection in multiplexed transmission lines.
  2. Digital audio/video equipment: Enables switching between multiple audio/video sources.
  3. Industrial automation: Facilitates signal routing and control in automated systems.
  4. Test and measurement instruments: Allows for efficient signal routing during testing procedures.

Alternative Models

Other alternative models with similar functionality include:

  1. 74HC151DB,112
  2. 74HC153DB,112
  3. 74HC157DB,112
  4. 74HC238DB,112

These models offer comparable features and can be used as substitutes for the 74HC258DB,112 in various applications.

In conclusion, the 74HC258DB,112 is a versatile multiplexer/demultiplexer IC that offers high-speed operation and low power consumption. Its compact SOIC package makes it suitable for space-constrained applications. With its various applications and alternative models available, this IC provides a reliable solution for data routing and selection needs.

Énumérez 10 questions et réponses courantes liées à l'application de 74HC258DB,112 dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of 74HC258DB,112 in technical solutions:

  1. Q: What is the 74HC258DB,112? A: The 74HC258DB,112 is a 3-to-8 line multiplexer/demultiplexer IC (integrated circuit) that can be used in various digital logic applications.

  2. Q: What is the purpose of a multiplexer/demultiplexer? A: A multiplexer combines multiple input signals into a single output, while a demultiplexer does the opposite by splitting a single input signal into multiple outputs.

  3. Q: What voltage levels does the 74HC258DB,112 support? A: The 74HC258DB,112 supports a wide range of voltage levels, typically between 2V and 6V.

  4. Q: How many inputs and outputs does the 74HC258DB,112 have? A: The 74HC258DB,112 has 3 inputs and 8 outputs, making it suitable for applications requiring multiple signal routing.

  5. Q: Can the 74HC258DB,112 handle both analog and digital signals? A: No, the 74HC258DB,112 is designed specifically for digital signals and is not suitable for handling analog signals.

  6. Q: What is the maximum frequency at which the 74HC258DB,112 can operate? A: The 74HC258DB,112 can typically operate at frequencies up to 50 MHz.

  7. Q: How does the 74HC258DB,112 select between multiplexing and demultiplexing modes? A: The mode of operation is determined by the state of the control inputs. Refer to the datasheet for specific details on control input configurations.

  8. Q: Can the 74HC258DB,112 be cascaded to increase the number of inputs or outputs? A: Yes, multiple 74HC258DB,112 ICs can be cascaded together to increase the number of inputs or outputs as required.

  9. Q: What are some common applications of the 74HC258DB,112? A: The 74HC258DB,112 is commonly used in digital systems for signal routing, data selection, address decoding, and multiplexing/demultiplexing tasks.

  10. Q: Are there any special considerations when using the 74HC258DB,112 in high-speed applications? A: Yes, in high-speed applications, it is important to consider signal integrity, propagation delays, and noise immunity to ensure reliable operation. Proper decoupling and layout techniques should be followed.

Please note that these answers provide a general overview, and it is always recommended to refer to the datasheet and consult with technical experts for specific application requirements.