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SN74HC125NSR
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SN74HC125NSR

Product Overview

Category

SN74HC125NSR belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used as a quad bus buffer gate with 3-state outputs.

Characteristics

  • Quad buffer gate
  • 3-state outputs
  • High-speed CMOS technology
  • Wide operating voltage range: 2V to 6V
  • Low power consumption
  • Schmitt-trigger inputs for noise immunity

Package

SN74HC125NSR is available in a small-outline package (SOIC) with 14 pins.

Essence

The essence of SN74HC125NSR lies in its ability to provide buffering and signal isolation in digital circuits.

Packaging/Quantity

SN74HC125NSR 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
  • Maximum Propagation Delay: 15ns
  • Maximum Quiescent Current: 4μA

Detailed Pin Configuration

SN74HC125NSR has a total of 14 pins, which are assigned as follows:

  1. Input 1 (A1)
  2. Output 1 (Y1)
  3. Input 2 (A2)
  4. Output 2 (Y2)
  5. Enable (GND)
  6. Ground (GND)
  7. Output 3 (Y3)
  8. Input 3 (A3)
  9. Output 4 (Y4)
  10. Input 4 (A4)
  11. Enable (VCC)
  12. VCC
  13. Output 4 (Y4)
  14. Input 4 (A4)

Functional Features

  • Quad buffer gate with 3-state outputs
  • High-speed operation for efficient signal transmission
  • Schmitt-trigger inputs provide noise immunity
  • Enables easy interfacing between different logic families
  • Allows bidirectional data flow

Advantages and Disadvantages

Advantages

  • Wide operating voltage range allows compatibility with various systems
  • Low power consumption for energy-efficient designs
  • Schmitt-trigger inputs enhance noise immunity
  • Compact SOIC package saves board space

Disadvantages

  • Limited number of buffer gates in a single IC
  • Propagation delay may affect timing-sensitive applications

Working Principles

SN74HC125NSR operates as a quad buffer gate with 3-state outputs. It receives input signals from the A1 to A4 pins and provides buffered outputs on the Y1 to Y4 pins. The enable pins (GND and VCC) control the output state, allowing the IC to be easily connected or disconnected from the bus.

Detailed Application Field Plans

SN74HC125NSR finds applications in various fields, including:

  1. Microcontroller-based systems
  2. Digital communication systems
  3. Industrial automation
  4. Automotive electronics
  5. Consumer electronics

In microcontroller-based systems, SN74HC125NSR can be used for level shifting and signal buffering between different logic levels. In digital communication systems, it enables reliable data transmission by isolating and buffering signals. In industrial automation and automotive electronics, it helps interface between different subsystems. In consumer electronics, it facilitates bidirectional data transfer between devices.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to SN74HC125NSR include:

  1. SN74HCT125N
  2. CD74HC125E
  3. MC74HC125AN
  4. 74HC125D

These models are compatible with the same pin configuration and provide similar features, making them suitable alternatives for various applications.

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan SN74HC125NSR dalam solusi teknis

Sure! Here are 10 common questions and answers related to the application of SN74HC125NSR in technical solutions:

  1. Q: What is SN74HC125NSR? A: SN74HC125NSR is a quad buffer gate with 3-state outputs, commonly used in digital logic circuits.

  2. Q: What is the voltage supply range for SN74HC125NSR? A: The voltage supply range for SN74HC125NSR is typically between 2V and 6V.

  3. Q: What is the maximum output current of SN74HC125NSR? A: The maximum output current of SN74HC125NSR is around 8mA per channel.

  4. Q: Can SN74HC125NSR be used as a level shifter? A: Yes, SN74HC125NSR can be used as a level shifter to convert signals between different voltage levels.

  5. Q: How many channels does SN74HC125NSR have? A: SN74HC125NSR has four independent buffer gates, each with its own input and output.

  6. Q: What is the purpose of the 3-state outputs in SN74HC125NSR? A: The 3-state outputs allow the outputs to be disabled or put into a high-impedance state, which is useful for bus sharing applications.

  7. Q: What is the maximum operating frequency of SN74HC125NSR? A: The maximum operating frequency of SN74HC125NSR is typically around 50MHz.

  8. Q: Can SN74HC125NSR be used in both CMOS and TTL logic systems? A: Yes, SN74HC125NSR is compatible with both CMOS and TTL logic systems.

  9. Q: What is the input voltage threshold for SN74HC125NSR? A: The input voltage threshold for SN74HC125NSR is typically around 1.5V.

  10. Q: Can SN74HC125NSR be used in automotive applications? A: Yes, SN74HC125NSR is often used in automotive applications due to its wide operating temperature range and robustness.

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