Texas Instruments
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CD74HC147MG4
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CD74HC147MG4

Product Overview

Category

CD74HC147MG4 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in digital electronic systems for data encoding and decoding purposes.

Characteristics

  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
  • Compatibility with TTL inputs
  • Output capability: 10 LSTTL loads
  • Schmitt-trigger action on all inputs

Package

CD74HC147MG4 is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of CD74HC147MG4 lies in its ability to efficiently encode and decode data in digital electronic systems.

Packaging/Quantity

This product is typically packaged in reels, with each reel containing a specific quantity of CD74HC147MG4 ICs.

Specifications

  • Supply voltage range: 2V to 6V
  • Input voltage range: 0V to VCC
  • Operating temperature range: -40°C to +85°C
  • Maximum input current: ±1µA
  • Maximum output current: ±25mA

Detailed Pin Configuration

CD74HC147MG4 consists of the following pins:

  1. A0
  2. A1
  3. A2
  4. A3
  5. A4
  6. A5
  7. A6
  8. GND
  9. D0
  10. D1
  11. D2
  12. D3
  13. D4
  14. D5
  15. D6
  16. VCC

Functional Features

CD74HC147MG4 offers the following functional features:

  • Priority encoding of eight data lines
  • Active low outputs
  • Cascadable for larger applications
  • Simplified interface with microcontrollers and other digital devices

Advantages and Disadvantages

Advantages

  • High-speed operation enables efficient data encoding and decoding.
  • Low power consumption contributes to energy efficiency.
  • Wide operating voltage range allows for compatibility with various systems.
  • Schmitt-trigger action on all inputs ensures reliable signal processing.

Disadvantages

  • Limited number of input lines (eight) may restrict its use in complex applications requiring more inputs.
  • Availability of alternative models with additional features may limit its competitiveness in certain scenarios.

Working Principles

CD74HC147MG4 operates based on priority encoding principles. It assigns a unique binary code to each input line, prioritizing the highest-order active input. The encoded output is represented by the active low outputs of the IC.

Detailed Application Field Plans

CD74HC147MG4 finds application in various fields, including:

  1. Data communication systems
  2. Address decoding in memory devices
  3. Digital multiplexing and demultiplexing circuits
  4. Microcontroller-based systems
  5. Industrial automation and control systems

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to CD74HC147MG4 include:

  1. CD74HC148: 8-to-3 line priority encoder
  2. CD4028B: BCD-to-decimal decoder
  3. SN74LS147: 10-line to 4-line priority encoder
  4. CD4512: 8-channel data selector/multiplexer

These alternative models offer similar functionality but may have additional features or different pin configurations.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací CD74HC147MG4 v technických řešeních

Sure! Here are 10 common questions and answers related to the application of CD74HC147MG4 in technical solutions:

  1. Q: What is CD74HC147MG4? A: CD74HC147MG4 is a high-speed CMOS (Complementary Metal-Oxide-Semiconductor) 10-to-4 line priority encoder.

  2. Q: What is the purpose of CD74HC147MG4? A: CD74HC147MG4 is used to encode up to 10 inputs into a 4-bit binary code based on their priority.

  3. Q: What are the typical applications of CD74HC147MG4? A: CD74HC147MG4 is commonly used in digital systems, such as microcontrollers, CPUs, and data processing units, where multiple inputs need to be prioritized.

  4. Q: How does CD74HC147MG4 prioritize the inputs? A: CD74HC147MG4 assigns priority to the highest-order input that is active (low) and ignores all other lower-priority inputs.

  5. Q: What is the maximum operating frequency of CD74HC147MG4? A: The maximum operating frequency of CD74HC147MG4 is typically around 50 MHz.

  6. Q: What is the power supply voltage range for CD74HC147MG4? A: CD74HC147MG4 operates within a power supply voltage range of 2V to 6V.

  7. Q: Can CD74HC147MG4 handle both TTL (Transistor-Transistor Logic) and CMOS logic levels? A: Yes, CD74HC147MG4 is compatible with both TTL and CMOS logic levels, making it versatile for various digital systems.

  8. Q: Does CD74HC147MG4 have any built-in error detection or correction features? A: No, CD74HC147MG4 does not have any built-in error detection or correction capabilities. It solely focuses on priority encoding.

  9. Q: Can CD74HC147MG4 be cascaded to handle more than 10 inputs? A: Yes, CD74HC147MG4 can be cascaded to handle larger numbers of inputs by connecting the outputs of one encoder to the inputs of another.

  10. Q: Are there any specific precautions to consider when using CD74HC147MG4? A: It is important to ensure that the power supply voltage and logic levels are within the specified range to prevent damage to the device. Additionally, proper decoupling capacitors should be used for stable operation.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's recommendations for CD74HC147MG4.