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74LVT245BBQ20-13

74LVT245BBQ20-13

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Level Shifter and Bus Transceiver
  • Characteristics: Low Voltage, Bi-directional, Tri-state
  • Package: 20-pin Quad Flat Package (QFP)
  • Essence: Logic Level Conversion and Signal Transmission
  • Packaging/Quantity: Typically sold in reels of 2500 units

Specifications

  • Supply Voltage Range: 2.7V to 3.6V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Maximum Operating Frequency: 200 MHz
  • Number of Channels: 8
  • Input/Output Type: Tri-state
  • Logic Family: LVT (Low Voltage TTL)

Detailed Pin Configuration

  1. OE (Output Enable) - Active Low Output Enable
  2. A1 - Channel 1 Data Input/Output
  3. B1 - Channel 2 Data Input/Output
  4. GND - Ground
  5. B2 - Channel 3 Data Input/Output
  6. A2 - Channel 4 Data Input/Output
  7. VCC - Power Supply
  8. DIR (Direction) - Direction Control Input
  9. A3 - Channel 5 Data Input/Output
  10. B3 - Channel 6 Data Input/Output
  11. NC (No Connection)
  12. B4 - Channel 7 Data Input/Output
  13. A4 - Channel 8 Data Input/Output
  14. GND - Ground
  15. B5 - Channel 9 Data Input/Output
  16. A5 - Channel 10 Data Input/Output
  17. VCC - Power Supply
  18. B6 - Channel 11 Data Input/Output
  19. A6 - Channel 12 Data Input/Output
  20. GND - Ground

Functional Features

  • Bi-directional level shifting between two voltage domains
  • Tri-state outputs for bus sharing and isolation
  • High-speed operation up to 200 MHz
  • Low power consumption
  • ESD (Electrostatic Discharge) protection on all inputs and outputs

Advantages and Disadvantages

Advantages

  • Enables interfacing between different logic families with different voltage levels
  • Provides bidirectional data transmission capability
  • Supports high-speed operation
  • Offers protection against electrostatic discharge

Disadvantages

  • Limited to a specific voltage range (2.7V to 3.6V)
  • Requires careful consideration of input/output voltage compatibility

Working Principles

The 74LVT245BBQ20-13 is a level shifter and bus transceiver IC that allows bidirectional communication between two voltage domains. It operates by converting the logic levels of input signals from one voltage domain to another, enabling seamless data transfer. The direction of data flow is controlled by the DIR pin. When the DIR pin is set to a specific logic level, the corresponding channel's data is transmitted in the specified direction.

Detailed Application Field Plans

The 74LVT245BBQ20-13 is commonly used in various applications where level shifting and bus transceiver functions are required. Some typical application fields include: - Microcontroller interfacing with different voltage peripherals - Communication systems involving multiple voltage domains - Industrial automation and control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

  • SN74LVC245A: Similar functionality with a wider supply voltage range (1.65V to 5.5V)
  • 74LVTH245: Higher speed operation (up to 400 MHz) with lower power consumption
  • 74HCT245: Compatible with higher voltage levels (up to 5.5V) but operates at slower speeds

(Note: The above alternative models are just a few examples and not an exhaustive list.)

This concludes the encyclopedia entry for the 74LVT245BBQ20-13, providing comprehensive information about its product details, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af 74LVT245BBQ20-13 i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of 74LVT245BBQ20-13 in technical solutions:

  1. Question: What is the function of the 74LVT245BBQ20-13?
    Answer: The 74LVT245BBQ20-13 is an octal bus transceiver with 3-state outputs. It can be used to enable bidirectional transfer of data between two buses.

  2. Question: What is the voltage range supported by the 74LVT245BBQ20-13?
    Answer: The 74LVT245BBQ20-13 supports a voltage range of 1.65V to 3.6V.

  3. Question: How many channels does the 74LVT245BBQ20-13 have?
    Answer: The 74LVT245BBQ20-13 has 8 channels, allowing for bidirectional data transfer on each channel.

  4. Question: What is the maximum data rate supported by the 74LVT245BBQ20-13?
    Answer: The 74LVT245BBQ20-13 supports a maximum data rate of 400Mbps.

  5. Question: Can the 74LVT245BBQ20-13 be used in both 3.3V and 5V systems?
    Answer: No, the 74LVT245BBQ20-13 is not compatible with 5V systems. It is designed for use in 3.3V systems only.

  6. Question: Does the 74LVT245BBQ20-13 have built-in ESD protection?
    Answer: Yes, the 74LVT245BBQ20-13 has built-in ESD protection, making it more robust against electrostatic discharge.

  7. Question: Can the 74LVT245BBQ20-13 be used in high-speed applications?
    Answer: Yes, the 74LVT245BBQ20-13 is suitable for high-speed applications due to its low propagation delay and fast switching times.

  8. Question: What is the power supply voltage required for the 74LVT245BBQ20-13?
    Answer: The 74LVT245BBQ20-13 requires a power supply voltage of 3.3V.

  9. Question: Does the 74LVT245BBQ20-13 have any special features for bus isolation?
    Answer: Yes, the 74LVT245BBQ20-13 has 3-state outputs that can be used for bus isolation when not actively driving the bus.

  10. Question: Is the 74LVT245BBQ20-13 available in different package options?
    Answer: Yes, the 74LVT245BBQ20-13 is available in various package options, including the BBQ20-13 package.