Texas Instruments
Das Bild kann eine Darstellung sein.
Siehe Spezifikationen für Produktdetails.
SN74BCT8245ADWR
Im Detail sehen Datenblätter

SN74BCT8245ADWR

Product Overview

Category

The SN74BCT8245ADWR belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for voltage level translation and signal buffering in various electronic devices.

Characteristics

  • Voltage Level Translation: The SN74BCT8245ADWR can translate signals between different voltage levels, making it suitable for interfacing between devices operating at different voltage levels.
  • Signal Buffering: It provides buffering capabilities to ensure signal integrity and prevent signal degradation during transmission.
  • High-Speed Operation: This IC is designed to operate at high speeds, making it suitable for applications requiring fast data transfer.
  • Bidirectional Communication: It supports bidirectional communication, allowing data to be transmitted in both directions.

Package

The SN74BCT8245ADWR is available in a surface mount package. The specific package type is DW (SOIC-24), which stands for Dual In-Line Wide.

Essence

The essence of SN74BCT8245ADWR lies in its ability to facilitate voltage level translation and signal buffering, enabling seamless communication between devices operating at different voltage levels.

Packaging/Quantity

The SN74BCT8245ADWR is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the supplier.

Specifications

  • Supply Voltage Range: 4.5V to 5.5V
  • Logic Family: BCT
  • Number of Channels: 8
  • Input Voltage Levels: TTL/CMOS
  • Output Voltage Levels: CMOS
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay: 6ns (typical)
  • Output Drive Capability: ±24mA

Detailed Pin Configuration

The SN74BCT8245ADWR has a total of 24 pins. The pin configuration is as follows:

  1. OE (Output Enable) 1
  2. A1 (Channel 1 Input/Output)
  3. B1 (Channel 1 Input/Output)
  4. GND (Ground)
  5. B2 (Channel 2 Input/Output)
  6. A2 (Channel 2 Input/Output)
  7. VCC (Supply Voltage)
  8. OE (Output Enable) 2
  9. A3 (Channel 3 Input/Output)
  10. B3 (Channel 3 Input/Output)
  11. B4 (Channel 4 Input/Output)
  12. A4 (Channel 4 Input/Output)
  13. GND (Ground)
  14. A5 (Channel 5 Input/Output)
  15. B5 (Channel 5 Input/Output)
  16. VCC (Supply Voltage)
  17. OE (Output Enable) 3
  18. B6 (Channel 6 Input/Output)
  19. A6 (Channel 6 Input/Output)
  20. GND (Ground)
  21. A7 (Channel 7 Input/Output)
  22. B7 (Channel 7 Input/Output)
  23. B8 (Channel 8 Input/Output)
  24. A8 (Channel 8 Input/Output)

Functional Features

  • Bidirectional Voltage Level Translation: The SN74BCT8245ADWR can translate signals bidirectionally between two voltage domains, allowing seamless communication between devices operating at different voltage levels.
  • Output Enable Control: The IC features output enable pins for each channel, providing control over the direction of data flow.
  • High-Speed Operation: It supports high-speed data transfer, making it suitable for applications requiring fast signal transmission.
  • ESD Protection: The IC incorporates built-in electrostatic discharge (ESD) protection, safeguarding it against damage from static electricity.

Advantages and Disadvantages

Advantages

  • Efficient Voltage Level Translation: The SN74BCT8245ADWR ensures reliable voltage level translation, enabling compatibility between devices with different voltage requirements.
  • Signal Integrity Preservation: It provides buffering capabilities to maintain signal integrity during transmission, minimizing signal degradation.
  • Bidirectional Communication: The IC supports bidirectional data transfer, allowing for versatile communication between devices.
  • High-Speed Operation: With its high-speed operation, the IC is suitable for applications that demand fast data transfer.

Disadvantages

  • Limited Channel Count: The SN74BCT8245ADWR has a maximum of 8 channels, which may be insufficient for applications requiring a higher number of channels.
  • Power Consumption: Like most integrated circuits, this IC consumes power during operation, which should be considered in low-power applications.

Working Principles

The SN74BCT8245ADWR operates based on the principles of voltage level translation and signal buffering. When an input signal is received, the IC translates the voltage level to match the desired output voltage level. It then buffers the signal to

Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von SN74BCT8245ADWR in technischen Lösungen auf

Sure! Here are 10 common questions and answers related to the application of SN74BCT8245ADWR in technical solutions:

  1. Q: What is SN74BCT8245ADWR? A: SN74BCT8245ADWR is a type of octal bus transceiver with 3-state outputs, commonly used for bidirectional data transfer between different voltage levels.

  2. Q: What is the operating voltage range of SN74BCT8245ADWR? A: The operating voltage range of SN74BCT8245ADWR is typically between 4.5V and 5.5V.

  3. Q: Can SN74BCT8245ADWR be used for level shifting between different voltage domains? A: Yes, SN74BCT8245ADWR can be used for level shifting between different voltage domains, as it supports bidirectional data transfer.

  4. Q: How many data lines can SN74BCT8245ADWR handle? A: SN74BCT8245ADWR can handle up to 8 data lines, as it is an octal (8-bit) bus transceiver.

  5. Q: What is the maximum data transfer rate supported by SN74BCT8245ADWR? A: SN74BCT8245ADWR has a maximum data transfer rate of typically 24 MHz.

  6. Q: Does SN74BCT8245ADWR have built-in protection against bus contention? A: Yes, SN74BCT8245ADWR has built-in bus hold circuitry that prevents bus contention when both sides are actively driving the bus.

  7. Q: Can SN74BCT8245ADWR be used in applications with mixed signal voltages? A: Yes, SN74BCT8245ADWR can be used in applications with mixed signal voltages, as it supports bidirectional voltage translation.

  8. Q: What is the power supply current consumption of SN74BCT8245ADWR? A: The power supply current consumption of SN74BCT8245ADWR varies depending on the operating conditions, but typically ranges from 10 mA to 20 mA.

  9. Q: Does SN74BCT8245ADWR have any built-in ESD protection? A: Yes, SN74BCT8245ADWR has built-in ESD protection on all pins, which helps protect against electrostatic discharge events.

  10. Q: Can SN74BCT8245ADWR be used in high-speed data communication applications? A: While SN74BCT8245ADWR has a relatively high data transfer rate, it may not be suitable for very high-speed data communication applications. It is recommended to consult the datasheet and consider other factors such as propagation delay and rise/fall times for specific application requirements.

Please note that these answers are general and may vary based on specific application requirements. It is always recommended to refer to the datasheet and consult with technical experts for accurate information.