Texas Instruments
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CD74HC253M
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CD74HC253M

Product Overview

  • Category: Integrated Circuit
  • Use: Multiplexer/Demultiplexer
  • Characteristics: High-speed, CMOS logic, dual 4-to-1 multiplexer/demultiplexer
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Logic IC for data routing and selection
  • Packaging/Quantity: Tape and Reel, 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 +85°C
  • Propagation Delay Time: 9 ns (typical)
  • Maximum Quiescent Current: 4 µA

Detailed Pin Configuration

The CD74HC253M has a total of 16 pins. The pin configuration is as follows:

  1. A1: Data Input A1
  2. B1: Data Input B1
  3. GND: Ground
  4. Y1: Multiplexer/Demultiplexer Output Y1
  5. Y2: Multiplexer/Demultiplexer Output Y2
  6. S1: Select Input S1
  7. S2: Select Input S2
  8. VCC: Positive Power Supply
  9. A2: Data Input A2
  10. B2: Data Input B2
  11. Y3: Multiplexer/Demultiplexer Output Y3
  12. Y4: Multiplexer/Demultiplexer Output Y4
  13. S3: Select Input S3
  14. S4: Select Input S4
  15. GND: Ground
  16. VCC: Positive Power Supply

Functional Features

  • Dual 4-to-1 multiplexer/demultiplexer functionality
  • High-speed operation suitable for time-critical applications
  • CMOS logic ensures low power consumption
  • Wide supply voltage range allows compatibility with various systems

Advantages and Disadvantages

Advantages: - Compact SOIC package saves board space - Versatile multiplexer/demultiplexer functionality - High-speed operation for efficient data routing

Disadvantages: - Limited number of input/output channels - Requires external control signals for proper operation

Working Principles

The CD74HC253M is a dual 4-to-1 multiplexer/demultiplexer integrated circuit. It routes or selects data from one of the four inputs to the corresponding output based on the select inputs. The device operates using CMOS logic, ensuring low power consumption and high-speed performance. By controlling the select inputs, users can choose the desired data path within the IC.

Detailed Application Field Plans

The CD74HC253M finds applications in various fields, including:

  1. Data communication systems: Used for data routing and selection in networking equipment.
  2. Industrial automation: Enables efficient data multiplexing/demultiplexing in control systems.
  3. Test and measurement instruments: Facilitates signal routing and selection in testing equipment.
  4. Audio/video equipment: Allows switching between different audio/video sources.
  5. Automotive electronics: Used for data routing and selection in automotive control units.

Detailed and Complete Alternative Models

  1. SN74HC253N: Similar dual 4-to-1 multiplexer/demultiplexer IC in DIP (Dual Inline Package) format.
  2. CD74HCT253M: Dual 4-to-1 multiplexer/demultiplexer IC with TTL logic compatibility.
  3. MC74HC253: Dual 4-to-1 multiplexer/demultiplexer IC from a different manufacturer.

These alternative models offer similar functionality and can be used as replacements for the CD74HC253M based on specific requirements.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací CD74HC253M v technických řešeních

Sure! Here are 10 common questions and answers related to the application of CD74HC253M in technical solutions:

  1. Q: What is CD74HC253M? A: CD74HC253M is a dual 4-to-1 multiplexer/demultiplexer integrated circuit (IC) that can be used for data routing and selection in various electronic applications.

  2. Q: What is the operating voltage range of CD74HC253M? A: CD74HC253M operates within a voltage range of 2V to 6V, making it compatible with both TTL and CMOS logic levels.

  3. Q: How many inputs does CD74HC253M have? A: CD74HC253M has two sets of four inputs each, allowing you to select between multiple data sources.

  4. Q: Can CD74HC253M be used as a demultiplexer? A: Yes, CD74HC253M can function as a demultiplexer by using its control inputs to select one of the four output channels for data distribution.

  5. Q: What is the maximum frequency at which CD74HC253M can operate? A: CD74HC253M has a maximum operating frequency of 50 MHz, making it suitable for high-speed digital applications.

  6. Q: Does CD74HC253M have any built-in protection features? A: CD74HC253M provides protection against electrostatic discharge (ESD) up to 2kV, ensuring reliability in handling and assembly.

  7. Q: Can CD74HC253M be cascaded to increase the number of inputs or outputs? A: Yes, multiple CD74HC253M ICs can be cascaded together to expand the number of inputs or outputs, allowing for larger data routing configurations.

  8. Q: What is the power supply current consumption of CD74HC253M? A: CD74HC253M typically consumes around 4mA of current when operating at a 5V power supply voltage.

  9. Q: Is CD74HC253M compatible with both digital and analog signals? A: CD74HC253M is primarily designed for digital signal routing, but it can also handle low-frequency analog signals within its specified voltage range.

  10. Q: What are some typical applications of CD74HC253M? A: CD74HC253M is commonly used in data multiplexing/demultiplexing, address decoding, data routing, bus switching, and general-purpose digital logic applications.

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