Texas Instruments
Bild kan vara representation.
Se specifikationer för produktinformation.
SN74LVC126ADBR
Visa detalj Datablad

SN74LVC126ADBR

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Buffer/Driver
  • Characteristics: Low Voltage, Quad Bus Buffer Gate
  • Package: SSOP-14
  • Essence: Logic Level Shifter
  • Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

  • Supply Voltage Range: 1.65V to 5.5V
  • High-Level Input Voltage: 2V to VCC + 0.5V
  • Low-Level Input Voltage: -0.5V to 0.8V
  • High-Level Output Voltage: VCC - 0.5V
  • Low-Level Output Voltage: 0.5V
  • Maximum Operating Frequency: 80MHz
  • Propagation Delay Time: 3.9ns (Max) at 3.3V
  • Input Capacitance: 3pF
  • Output Capacitance: 6pF

Detailed Pin Configuration

The SN74LVC126ADBR has a total of 14 pins arranged as follows:

___________ OE | 1 14 | VCC A1 | 2 13 | Y1 B1 | 3 12 | A4 Y2 | 4 11 | B4 A2 | 5 10 | Y4 B2 | 6 9 | GND Y3 | 7 8 | A3 ‾‾‾‾‾‾‾‾‾‾‾‾

Functional Features

  • Quad bus buffer gate with 3-state outputs
  • Supports voltage level shifting between different logic families
  • Allows bidirectional data flow
  • High-speed operation with low power consumption
  • Provides output current drive capability for heavily loaded buses

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - Low propagation delay time enables high-speed data transmission - 3-state outputs provide flexibility in bus sharing applications

Disadvantages: - Limited number of buffer gates (4) per package - Not suitable for high-voltage applications

Working Principles

The SN74LVC126ADBR is a quad bus buffer gate that operates as a voltage level shifter. It accepts input signals from one logic family and translates them to the voltage levels compatible with another logic family. The device uses CMOS technology, which ensures low power consumption and high noise immunity.

The buffer gate has three-state outputs, allowing multiple devices to share a common bus without interfering with each other. When the output enable (OE) pin is high, the outputs are in the high-impedance state, effectively disconnecting the device from the bus.

Detailed Application Field Plans

The SN74LVC126ADBR is commonly used in various digital systems where voltage level shifting and buffering are required. Some typical application fields include:

  1. Microcontrollers and microprocessors
  2. Communication systems
  3. Data acquisition systems
  4. Industrial automation
  5. Automotive electronics

Detailed and Complete Alternative Models

  1. SN74LVC125A: Quad Bus Buffer Gate with 3-State Outputs
  2. SN74LVC126A: Quad Bus Buffer Gate with 3-State Outputs and Schmitt-Trigger Inputs
  3. SN74LVC2244A: Octal Buffer/Line Driver with 3-State Outputs

These alternative models offer similar functionality and can be used as substitutes for the SN74LVC126ADBR depending on specific requirements and availability.

Word count: 409 words

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av SN74LVC126ADBR i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of SN74LVC126ADBR:

  1. Q: What is SN74LVC126ADBR? A: SN74LVC126ADBR is a quad buffer gate with 3-state outputs, commonly used in digital logic circuits.

  2. Q: What is the operating voltage range for SN74LVC126ADBR? A: The operating voltage range for SN74LVC126ADBR is typically between 1.65V and 5.5V.

  3. Q: What is the maximum output current that SN74LVC126ADBR can handle? A: SN74LVC126ADBR can handle a maximum output current of 32mA per channel.

  4. Q: Can SN74LVC126ADBR be used as a level shifter? A: Yes, SN74LVC126ADBR can be used as a level shifter to convert signals between different voltage levels.

  5. Q: How many channels does SN74LVC126ADBR have? A: SN74LVC126ADBR has four independent buffer gates, each with its own input and output.

  6. Q: What is the propagation delay of SN74LVC126ADBR? A: The typical propagation delay of SN74LVC126ADBR is around 4.3ns.

  7. Q: Can SN74LVC126ADBR be used in high-speed applications? A: Yes, SN74LVC126ADBR is designed for high-speed operation and can be used in applications with fast switching requirements.

  8. Q: Is SN74LVC126ADBR compatible with both CMOS and TTL logic levels? A: Yes, SN74LVC126ADBR is compatible with both CMOS and TTL logic levels, making it versatile for various applications.

  9. Q: Can SN74LVC126ADBR be used in bidirectional data transmission? A: No, SN74LVC126ADBR is a unidirectional buffer gate and does not support bidirectional data transmission.

  10. Q: What is the package type of SN74LVC126ADBR? A: SN74LVC126ADBR is available in a standard SOIC-14 package.

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