Texas Instruments
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SN74ABT126DR
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SN74ABT126DR

Product Overview

  • Category: Integrated Circuit
  • Use: Buffer/Driver
  • Characteristics: High-speed, non-inverting, 3-state output
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Logic gate with four independent buffers
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage: 4.5V to 5.5V
  • Input Voltage: 0V to VCC
  • Output Voltage: 0V to VCC
  • Operating Temperature: -40°C to +85°C
  • Propagation Delay Time: 2.8ns (typical)
  • Output Current: ±24mA

Pin Configuration

The SN74ABT126DR has a 14-pin SOIC package with the following pin configuration:

  1. 1A (Input 1 for Buffer A)
  2. 1Y (Output 1 for Buffer A)
  3. GND (Ground)
  4. 2Y (Output 2 for Buffer B)
  5. 2A (Input 2 for Buffer B)
  6. 3A (Input 3 for Buffer C)
  7. 3Y (Output 3 for Buffer C)
  8. VCC (Power Supply)
  9. 4Y (Output 4 for Buffer D)
  10. 4A (Input 4 for Buffer D)
  11. OE (Output Enable)
  12. NC (No Connection)
  13. NC (No Connection)
  14. GND (Ground)

Functional Features

  • Non-inverting buffer/driver with 3-state outputs
  • High-speed operation suitable for various applications
  • Wide operating voltage range
  • Output current capability allows driving up to ±24mA
  • Output can be disabled using the OE (Output Enable) pin

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data transfer - Wide operating voltage range allows compatibility with different systems - 3-state outputs provide flexibility in controlling bus lines

Disadvantages: - Limited output current may not be suitable for driving heavy loads - SOIC package may require additional precautions during soldering

Working Principles

The SN74ABT126DR is a logic gate that functions as a buffer/driver. It takes input signals and amplifies them to drive output lines. The non-inverting nature of the buffer ensures that the output signal matches the input signal, but with increased current capability. The 3-state outputs allow the device to be effectively disconnected from the bus lines when not in use.

Detailed Application Field Plans

The SN74ABT126DR is commonly used in various applications, including:

  1. Data communication systems
  2. Microprocessor-based systems
  3. Industrial automation
  4. Automotive electronics
  5. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to SN74ABT126DR are:

  1. SN74ABT125DR: Quad buffer/driver with 3-state outputs
  2. SN74ABT16245DGGR: 16-bit bus transceiver with 3-state outputs
  3. SN74ABT646ADWR: Octal bus transceiver/register with 3-state outputs

These alternative models offer similar functionality and characteristics, providing options for different design requirements.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням SN74ABT126DR у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of SN74ABT126DR:

  1. Q: What is SN74ABT126DR? A: SN74ABT126DR is a quad buffer/line driver with 3-state outputs, commonly used in digital logic applications.

  2. Q: What is the voltage supply range for SN74ABT126DR? A: The voltage supply range for SN74ABT126DR is typically between 4.5V and 5.5V.

  3. Q: What is the maximum output current that SN74ABT126DR can drive? A: SN74ABT126DR can drive up to 32mA of output current per channel.

  4. Q: Can SN74ABT126DR be used for level shifting between different voltage domains? A: Yes, SN74ABT126DR can be used for level shifting as it supports both TTL and CMOS voltage levels.

  5. Q: How many channels does SN74ABT126DR have? A: SN74ABT126DR has four independent channels, each with a separate input and output.

  6. Q: What is the purpose of the 3-state outputs in SN74ABT126DR? A: The 3-state outputs allow the device to be effectively disconnected from the bus, enabling multiple devices to share the same bus.

  7. Q: Can SN74ABT126DR be used in high-speed applications? A: Yes, SN74ABT126DR is designed for high-speed operation and can be used in applications with fast switching requirements.

  8. Q: Does SN74ABT126DR have any built-in protection features? A: Yes, SN74ABT126DR has built-in ESD protection on all inputs and outputs, providing robustness against electrostatic discharge.

  9. Q: Can SN74ABT126DR be used in both input and output buffer applications? A: Yes, SN74ABT126DR can be used as both an input buffer (to drive a weak signal) and an output buffer (to amplify a signal).

  10. Q: What is the typical propagation delay of SN74ABT126DR? A: The typical propagation delay of SN74ABT126DR is around 4.5ns, making it suitable for high-speed applications.

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