Texas Instruments
Bild kan vara representation.
Se specifikationer för produktinformation.
SN74LV125ADG4
Visa detalj Datablad

SN74LV125ADG4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Buffer/Driver
  • Characteristics: Low-voltage, Quad 3-state Non-inverting Buffer/Driver
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Logic Level Shifter
  • Packaging/Quantity: Tape and Reel, 2500 units 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: 100MHz
  • Number of Channels: 4
  • Output Current: ±12mA
  • Propagation Delay Time: 6ns (max)

Detailed Pin Configuration

The SN74LV125ADG4 has a total of 14 pins, which are assigned as follows:

  1. OE (Output Enable) - Active low output enable pin
  2. Y1 - Output for Channel 1
  3. A1 - Input for Channel 1
  4. GND - Ground
  5. A2 - Input for Channel 2
  6. Y2 - Output for Channel 2
  7. A3 - Input for Channel 3
  8. Y3 - Output for Channel 3
  9. VCC - Power supply voltage
  10. Y4 - Output for Channel 4
  11. A4 - Input for Channel 4
  12. GND - Ground
  13. NC (No Connection) - Not connected pin
  14. OE (Output Enable) - Active low output enable pin

Functional Features

  • Quad non-inverting buffer/driver with 3-state outputs
  • Allows voltage level shifting between different logic families
  • Provides high output current drive capability
  • Supports bidirectional data flow
  • Offers low power consumption
  • Enables easy interfacing between different integrated circuits

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems - High output current capability enables driving capacitive loads - 3-state outputs provide flexibility in controlling the output state - Low power consumption contributes to energy efficiency

Disadvantages: - Limited maximum operating frequency may restrict use in high-speed applications - Only supports non-inverting buffering, not suitable for inverting applications

Working Principles

The SN74LV125ADG4 is a quad non-inverting buffer/driver IC. It takes input signals from the A1-A4 pins and provides corresponding non-inverted outputs on the Y1-Y4 pins. The OE pins control the output enable function, allowing the outputs to be put into a high-impedance state when disabled.

The IC operates within a specified supply voltage range and converts input logic levels to compatible output levels. It can be used to interface between different logic families or to drive capacitive loads without significant signal degradation.

Detailed Application Field Plans

The SN74LV125ADG4 finds applications in various fields, including:

  1. Microcontroller Interfacing: It can be used to interface microcontrollers with other devices operating at different voltage levels.
  2. Level Shifting: It enables voltage level shifting between different logic families, such as TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor).
  3. Bus Driving: It can be employed to drive bus lines in digital systems, ensuring reliable signal transmission.
  4. Signal Conditioning: It helps in buffering and conditioning signals before further processing or transmission.
  5. Industrial Automation: It is suitable for use in industrial automation systems where reliable signal transmission and interfacing are crucial.

Detailed and Complete Alternative Models

  1. SN74LV125A: Similar to SN74LV125ADG4, but available in different package options (e.g., TSSOP, PDIP).
  2. MC74LVX125: Non-inverting buffer/driver IC with similar functionality, but operates at a higher voltage range (2V to 6V).
  3. CD74HC125E: Quad non-inverting buffer/driver IC with 3-state outputs, compatible with CMOS logic levels.

These alternative models offer similar features and can be considered as substitutes depending on specific requirements and availability.

Word count: 525 words

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av SN74LV125ADG4 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of SN74LV125ADG4 in technical solutions:

  1. Q: What is SN74LV125ADG4? A: SN74LV125ADG4 is a quad bus buffer gate with 3-state outputs, commonly used for signal buffering and level shifting applications.

  2. Q: What is the operating voltage range of SN74LV125ADG4? A: The operating voltage range of SN74LV125ADG4 is typically between 2 V and 5.5 V.

  3. Q: What is the maximum output current that SN74LV125ADG4 can drive? A: SN74LV125ADG4 can drive up to 12 mA of output current per channel.

  4. Q: Can SN74LV125ADG4 be used for bidirectional level shifting? A: No, SN74LV125ADG4 is a unidirectional buffer and cannot be used for bidirectional level shifting.

  5. Q: What is the propagation delay of SN74LV125ADG4? A: The typical propagation delay of SN74LV125ADG4 is around 6 ns.

  6. Q: Can SN74LV125ADG4 tolerate overvoltage on its inputs? A: Yes, SN74LV125ADG4 has input clamping diodes that protect it from overvoltage conditions.

  7. Q: How many channels does SN74LV125ADG4 have? A: SN74LV125ADG4 has four independent channels.

  8. Q: Is SN74LV125ADG4 compatible with TTL logic levels? A: Yes, SN74LV125ADG4 is compatible with both TTL and CMOS logic levels.

  9. Q: Can SN74LV125ADG4 be used in high-speed applications? A: Yes, SN74LV125ADG4 is designed for high-speed operation and can be used in applications with fast switching requirements.

  10. Q: What is the package type of SN74LV125ADG4? A: SN74LV125ADG4 is available in a standard 14-pin SOIC (Small Outline Integrated Circuit) package.

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