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SN74AS645DWRG4

SN74AS645DWRG4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Bus Transceiver
  • Characteristics: High-speed, bidirectional data transfer, voltage level translation
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Transfers data between two buses with different voltage levels
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 4.5V to 5.5V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Data Rate: Up to 24 Mbps
  • Number of Pins: 20

Detailed Pin Configuration

  1. A1 - Bus A Data Input/Output
  2. A2 - Bus A Data Input/Output
  3. A3 - Bus A Data Input/Output
  4. A4 - Bus A Data Input/Output
  5. A5 - Bus A Data Input/Output
  6. GND - Ground
  7. B5 - Bus B Data Input/Output
  8. B4 - Bus B Data Input/Output
  9. B3 - Bus B Data Input/Output
  10. B2 - Bus B Data Input/Output
  11. B1 - Bus B Data Input/Output
  12. OE - Output Enable
  13. DIR - Direction Control
  14. VCC - Power Supply
  15. B6 - Bus B Data Input/Output
  16. B7 - Bus B Data Input/Output
  17. B8 - Bus B Data Input/Output
  18. B9 - Bus B Data Input/Output
  19. B10 - Bus B Data Input/Output
  20. GND - Ground

Functional Features

  • Bidirectional data transfer between two buses
  • Voltage level translation between different voltage domains
  • High-speed operation up to 24 Mbps
  • Output enable and direction control for flexible bus management

Advantages

  • Enables seamless communication between buses with different voltage levels
  • Supports high-speed data transfer, suitable for time-critical applications
  • Provides flexibility in controlling the direction and enabling/disabling the output

Disadvantages

  • Limited to a specific package type (SOIC)
  • Requires careful consideration of voltage compatibility between buses

Working Principles

The SN74AS645DWRG4 is a bus transceiver IC that facilitates bidirectional data transfer between two buses with different voltage levels. It utilizes voltage level translation techniques to ensure compatibility between the input and output signals. The direction control pin (DIR) determines the flow of data, while the output enable pin (OE) enables or disables the output.

Detailed Application Field Plans

  • Industrial automation: Connects various subsystems operating at different voltage levels, such as sensors, actuators, and controllers.
  • Automotive electronics: Facilitates communication between different automotive modules, ensuring compatibility between voltage domains.
  • Communication systems: Enables data exchange between devices operating at different voltage levels, enhancing interoperability.

Detailed and Complete Alternative Models

  1. SN74LVC245A: Low-voltage CMOS Octal Bus Transceiver
  2. SN74HCT245: High-speed CMOS Octal Bus Transceiver
  3. SN74LVCH245A: Low-voltage CMOS Octal Bus Transceiver with 3-State Outputs
  4. SN74CBT3257: Quad FET Bus Switch

These alternative models offer similar functionality and can be considered based on specific application requirements.

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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng SN74AS645DWRG4 trong giải pháp kỹ thuật

Sure! Here are 10 common questions and answers related to the application of SN74AS645DWRG4 in technical solutions:

  1. Q: What is SN74AS645DWRG4? A: SN74AS645DWRG4 is a type of octal bus transceiver with 3-state outputs, commonly used in digital systems.

  2. Q: What is the purpose of SN74AS645DWRG4? A: SN74AS645DWRG4 is used to enable bidirectional transfer of data between two buses with different voltage levels or signal types.

  3. Q: What is the maximum operating voltage for SN74AS645DWRG4? A: The maximum operating voltage for SN74AS645DWRG4 is typically 5.5V.

  4. Q: Can SN74AS645DWRG4 be used in both 5V and 3.3V systems? A: Yes, SN74AS645DWRG4 is compatible with both 5V and 3.3V systems.

  5. Q: How many channels does SN74AS645DWRG4 have? A: SN74AS645DWRG4 has 8 bidirectional channels.

  6. Q: What is the output current capability of SN74AS645DWRG4? A: SN74AS645DWRG4 can source or sink up to 24mA of current per channel.

  7. Q: Does SN74AS645DWRG4 support 3-state outputs? A: Yes, SN74AS645DWRG4 supports 3-state outputs, allowing multiple devices to share a common bus.

  8. Q: Can SN74AS645DWRG4 be used in high-speed applications? A: Yes, SN74AS645DWRG4 is designed for high-speed operation and can be used in applications with fast data transfer rates.

  9. Q: Does SN74AS645DWRG4 have built-in protection features? A: Yes, SN74AS645DWRG4 has built-in ESD protection to safeguard against electrostatic discharge.

  10. Q: What package does SN74AS645DWRG4 come in? A: SN74AS645DWRG4 is available in a 20-pin SOIC (Small Outline Integrated Circuit) package.

Please note that the answers provided here are general and may vary depending on the specific datasheet and manufacturer's specifications for SN74AS645DWRG4.