Texas Instruments
Imej mungkin representasi.
Lihat spesifikasi untuk butiran produk.
SN74LS126ADR
Lihat Butiran Helaian data

SN74LS126ADR

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Logic Gate Buffer/Driver
  • Characteristics:
    • TTL (Transistor-Transistor Logic) technology
    • Quad 3-state buffer
    • High-speed operation
    • Low power consumption
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Buffering and driving signals in digital circuits
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 4.75V to 5.25V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay Time: 9ns (typical)
  • Output Current: ±8mA
  • Input Capacitance: 3pF
  • Output Capacitance: 15pF

Detailed Pin Configuration

The SN74LS126ADR has a 14-pin configuration as follows:

__ __ 1 |1 \__/ 14| VCC 2 |2 13| B 3 |3 12| A 4 |4 11| Y1 5 |5 10| Y2 6 |6 9| Y3 7 |7 8| GND ----------

Functional Features

  • Quad 3-state buffer with separate enable inputs for each buffer
  • Provides non-inverting outputs
  • High output drive capability
  • Allows multiple devices to be connected to a common bus

Advantages and Disadvantages

Advantages: - High-speed operation makes it suitable for time-critical applications - Low power consumption helps in reducing overall energy usage - 3-state outputs allow for efficient bus sharing

Disadvantages: - Limited output current may not be suitable for driving heavy loads - TTL technology is more susceptible to noise compared to newer logic families

Working Principles

The SN74LS126ADR operates as a buffer and driver for digital signals. It takes input signals from one or more sources and provides amplified and buffered outputs. The quad configuration allows multiple signals to be processed simultaneously. The enable inputs control the output state, allowing the device to be connected to a common bus without interference.

Detailed Application Field Plans

The SN74LS126ADR finds applications in various digital systems, including:

  1. Microprocessors and microcontrollers
  2. Data communication systems
  3. Industrial automation
  4. Automotive electronics
  5. Consumer electronics

In these applications, it is used for signal buffering, level shifting, and driving capabilities.

Detailed and Complete Alternative Models

Some alternative models that can be considered as replacements for SN74LS126ADR are:

  1. SN74LS125ADR: Quad 3-state buffer with similar characteristics but different pin configuration.
  2. SN74HC126N: Quad 3-state buffer with CMOS technology for improved noise immunity.
  3. CD4050BE: Hex non-inverting buffer with higher output current capability.

These alternatives provide similar functionality and can be chosen based on specific requirements and compatibility with the existing circuitry.

Word count: 389 words

Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi SN74LS126ADR dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of SN74LS126ADR in technical solutions:

  1. Q: What is SN74LS126ADR? A: SN74LS126ADR is a quad bus buffer gate with 3-state outputs, commonly used in digital logic circuits.

  2. Q: What is the operating voltage range for SN74LS126ADR? A: The operating voltage range for SN74LS126ADR is typically between 4.75V and 5.25V.

  3. Q: How many inputs and outputs does SN74LS126ADR have? A: SN74LS126ADR has four inputs (A1, A2, A3, A4) and four outputs (Y1, Y2, Y3, Y4).

  4. Q: Can SN74LS126ADR handle high-speed signals? A: Yes, SN74LS126ADR is designed to handle high-speed signals with a maximum propagation delay of 15ns.

  5. Q: What is the purpose of the 3-state outputs in SN74LS126ADR? A: The 3-state outputs allow multiple devices to be connected to a common bus without causing conflicts or signal degradation.

  6. Q: Can SN74LS126ADR be used as a level shifter? A: Yes, SN74LS126ADR can be used as a level shifter to convert signals between different voltage levels.

  7. Q: What is the maximum current that SN74LS126ADR can sink/source? A: SN74LS126ADR can typically sink/source up to 8mA of current per output.

  8. Q: Is SN74LS126ADR compatible with TTL logic levels? A: Yes, SN74LS126ADR is compatible with TTL logic levels, making it suitable for interfacing with other TTL devices.

  9. Q: Can SN74LS126ADR be used in both commercial and industrial applications? A: Yes, SN74LS126ADR is designed to meet the requirements of both commercial and industrial applications.

  10. Q: Are there any specific precautions to consider when using SN74LS126ADR? A: It is important to ensure proper decoupling capacitors are used near the power supply pins and to follow the recommended operating conditions mentioned in the datasheet to ensure reliable operation.

Please note that these answers are general and may vary depending on the specific application or use case. Always refer to the datasheet and consult with an expert for accurate information.