Texas Instruments
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CD74AC251MG4
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CD74AC251MG4

Product Overview

Category

CD74AC251MG4 belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

  • CD74AC251MG4 is a high-speed, low-power quad 2-input multiplexer/demultiplexer.
  • It operates at a voltage range of 2V to 6V.
  • The device has Schmitt-trigger inputs for noise immunity.
  • It offers a wide operating temperature range of -40°C to 85°C.

Package

CD74AC251MG4 is available in a small-outline integrated circuit (SOIC) package.

Essence

The essence of CD74AC251MG4 lies in its ability to efficiently handle data multiplexing and demultiplexing tasks in digital electronic systems.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

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 85°C
  • Logic Family: AC
  • Number of Inputs: 2
  • Number of Outputs: 1
  • Package Type: SOIC

Detailed Pin Configuration

CD74AC251MG4 consists of 16 pins, each serving a specific function:

  1. A0: Input A0
  2. A1: Input A1
  3. I0: Data Input 0
  4. I1: Data Input 1
  5. E: Enable Input
  6. Y: Multiplexer/Demultiplexer Output
  7. GND: Ground
  8. Y: Multiplexer/Demultiplexer Output
  9. I2: Data Input 2
  10. I3: Data Input 3
  11. B0: Input B0
  12. B1: Input B1
  13. VCC: Positive Power Supply
  14. B2: Input B2
  15. B3: Input B3
  16. A2: Input A2

Functional Features

  • CD74AC251MG4 can function as a quad 2-input multiplexer or a quad 2-input demultiplexer.
  • It offers high-speed operation, making it suitable for time-critical applications.
  • The device has Schmitt-trigger inputs, providing improved noise immunity.
  • CD74AC251MG4 operates within a wide voltage range, allowing compatibility with various digital systems.

Advantages and Disadvantages

Advantages

  • High-speed operation enables efficient data handling.
  • Wide operating voltage range enhances compatibility.
  • Schmitt-trigger inputs provide noise immunity.

Disadvantages

  • Limited number of inputs and outputs may restrict certain applications.
  • Availability in only one package type (SOIC) may limit integration options.

Working Principles

CD74AC251MG4 functions as a multiplexer or demultiplexer based on the input configuration. When used as a multiplexer, it selects one of the four data inputs (I0-I3) based on the control inputs (A0-A2). The selected data is then presented at the output (Y). In demultiplexer mode, the control inputs determine which of the four outputs (Y) receives the input data.

Detailed Application Field Plans

CD74AC251MG4 finds application in various digital electronic systems, including: - Data communication equipment - Industrial automation systems - Consumer electronics - Automotive electronics - Medical devices

Detailed and Complete Alternative Models

Some alternative models to CD74AC251MG4 that serve similar functions include: - SN74AC251: Similar quad 2-input multiplexer/demultiplexer from Texas Instruments. - MC74AC251: Quad 2-input multiplexer/demultiplexer offered by ON Semiconductor. - 74HC251: Quad 2-input multiplexer/demultiplexer from NXP Semiconductors.

These alternative models provide comparable features and can be considered as substitutes for CD74AC251MG4 in various applications.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de CD74AC251MG4 en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of CD74AC251MG4 in technical solutions:

  1. Q: What is CD74AC251MG4? A: CD74AC251MG4 is a multiplexer/demultiplexer integrated circuit (IC) that can be used for data routing and selection in digital circuits.

  2. Q: What is the operating voltage range of CD74AC251MG4? A: CD74AC251MG4 operates within a voltage range of 2V to 6V.

  3. Q: How many data inputs does CD74AC251MG4 have? A: CD74AC251MG4 has 8 data inputs, labeled D0 to D7.

  4. Q: Can CD74AC251MG4 be used as a demultiplexer? A: Yes, CD74AC251MG4 can function as both a multiplexer and a demultiplexer.

  5. Q: What is the output configuration of CD74AC251MG4? A: CD74AC251MG4 has 3-state outputs, allowing multiple devices to share the same bus without interference.

  6. Q: What is the maximum frequency at which CD74AC251MG4 can operate? A: CD74AC251MG4 can operate at a maximum frequency of 125 MHz.

  7. Q: How many select inputs does CD74AC251MG4 have? A: CD74AC251MG4 has 3 select inputs, labeled S0, S1, and S2.

  8. Q: Can CD74AC251MG4 be cascaded to increase the number of inputs? A: Yes, CD74AC251MG4 can be cascaded to increase the number of inputs by connecting the outputs of one IC to the inputs of another.

  9. Q: What is the typical power consumption of CD74AC251MG4? A: The typical power consumption of CD74AC251MG4 is around 10mW.

  10. Q: What are some common applications of CD74AC251MG4? A: CD74AC251MG4 is commonly used in data routing, bus switching, address decoding, and general-purpose digital logic designs.

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