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MC74HC251ADTG
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MC74HC251ADTG

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Data Selector/Multiplexer
  • Characteristics: High-Speed CMOS Logic, 8-Channel Multiplexer, Non-Inverting Outputs
  • Package: TSSOP-16
  • Essence: MC74HC251ADTG is a high-speed CMOS logic IC that functions as an 8-channel multiplexer with non-inverting outputs.
  • Packaging/Quantity: The MC74HC251ADTG is available in a TSSOP-16 package and is typically sold in reels of 2500 units.

Specifications

  • Supply Voltage: 2V to 6V
  • Input Voltage: 0V to VCC
  • Output Voltage: 0V to VCC
  • Operating Temperature: -40°C to +85°C
  • Propagation Delay: 10ns (typical)
  • Input Capacitance: 3.5pF (typical)
  • Output Current: ±25mA

Pin Configuration

The MC74HC251ADTG has a total of 16 pins arranged as follows:

__ __ A1 |1 \__/ 16| VCC B1 |2 15| Y1 C1 |3 14| Y2 D1 |4 13| Y3 G1 |5 MC 12| Y4 GND|6 74 11| Y5 A0 |7 HC 10| Y6 B0 |8 251 9| Y7 -- --

Functional Features

  • 8-channel multiplexer with non-inverting outputs
  • High-speed CMOS logic allows for fast data selection
  • Low power consumption
  • Wide operating voltage range
  • Compatible with TTL and CMOS logic levels

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data selection - Non-inverting outputs simplify circuit design - Low power consumption helps conserve energy - Wide operating voltage range provides flexibility in various applications

Disadvantages: - Limited to 8-channel multiplexing, may not be suitable for larger-scale applications - TSSOP package may require careful handling during assembly

Working Principles

The MC74HC251ADTG is a data selector/multiplexer IC that routes one of the eight input signals (A0-A1) to the output (Y1-Y7) based on the select inputs (G1-G0). The non-inverting outputs ensure that the selected signal is reproduced without any phase inversion. The high-speed CMOS logic allows for rapid data selection, making it suitable for time-critical applications.

Detailed Application Field Plans

The MC74HC251ADTG can be used in various applications, including but not limited to: - Data routing and selection in digital systems - Address decoding in microcontrollers and memory devices - Signal multiplexing in communication systems - Input/output expansion in embedded systems

Alternative Models

Here are some alternative models that offer similar functionality to the MC74HC251ADTG: - SN74HC251N by Texas Instruments - CD74HC251E by Texas Instruments - 74HC251D by NXP Semiconductors - HEF45251BP by NXP Semiconductors

These alternatives can be considered based on specific requirements, availability, and pricing.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням MC74HC251ADTG у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of MC74HC251ADTG in technical solutions:

  1. Q: What is MC74HC251ADTG? A: MC74HC251ADTG is a multiplexer/demultiplexer IC (Integrated Circuit) that can be used to select one of eight data inputs and route it to a single output.

  2. Q: What is the purpose of using MC74HC251ADTG in technical solutions? A: MC74HC251ADTG can be used to efficiently manage multiple data sources and simplify the routing of signals in various applications.

  3. Q: What voltage levels does MC74HC251ADTG support? A: MC74HC251ADTG supports a wide range of voltage levels, typically between 2V and 6V.

  4. Q: How many data inputs can MC74HC251ADTG handle? A: MC74HC251ADTG has eight data inputs, allowing you to choose from a variety of input sources.

  5. Q: Can MC74HC251ADTG be used as a demultiplexer? A: Yes, MC74HC251ADTG can function as both a multiplexer and a demultiplexer, making it versatile for different applications.

  6. Q: What is the maximum frequency at which MC74HC251ADTG can operate? A: MC74HC251ADTG can operate at frequencies up to 50 MHz, making it suitable for high-speed data routing.

  7. Q: Does MC74HC251ADTG have any built-in protection features? A: Yes, MC74HC251ADTG has built-in ESD (Electrostatic Discharge) protection, which helps safeguard against damage during handling and operation.

  8. Q: Can MC74HC251ADTG be cascaded to handle more than eight data inputs? A: Yes, multiple MC74HC251ADTG ICs can be cascaded together to handle a larger number of data inputs.

  9. Q: What is the power supply voltage range for MC74HC251ADTG? A: MC74HC251ADTG operates within a power supply voltage range of 2V to 6V.

  10. Q: Are there any specific application examples where MC74HC251ADTG is commonly used? A: MC74HC251ADTG is commonly used in applications such as data multiplexing/demultiplexing, signal routing, data acquisition systems, and digital communication systems.

Please note that these answers are general and may vary depending on the specific requirements and use cases of your technical solution.