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74LVC8T245DBQRG4
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74LVC8T245DBQRG4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Level Shifter and Voltage Translator
  • Characteristics: High-speed, low-power, bidirectional voltage translation between different logic levels
  • Package: SSOP (Shrink Small Outline Package)
  • Essence: Translates signals between two different voltage domains, ensuring compatibility between devices operating at different logic levels.
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 1.2V to 3.6V
  • Logic Voltage Levels: 1.2V to 3.6V
  • Input Voltage Range: GND to VCC
  • Output Voltage Range: GND to VCC
  • Maximum Operating Frequency: 400 MHz
  • Number of Channels: 8
  • Input/Output Type: Bidirectional

Detailed Pin Configuration

The 74LVC8T245DBQRG4 has a total of 20 pins, which are distributed as follows:

  • Pin 1: OE (Output Enable) - Active Low
  • Pin 2: A1 (Channel 1 Control Input)
  • Pin 3: I/O1 (Channel 1 Bidirectional Data I/O)
  • Pin 4: GND (Ground)
  • Pin 5: I/O2 (Channel 2 Bidirectional Data I/O)
  • Pin 6: A2 (Channel 2 Control Input)
  • Pin 7: VCC (Supply Voltage)
  • Pin 8: B2 (Channel 2 Control Input)
  • Pin 9: I/O3 (Channel 3 Bidirectional Data I/O)
  • Pin 10: B1 (Channel 1 Control Input)
  • Pin 11: I/O4 (Channel 4 Bidirectional Data I/O)
  • Pin 12: GND (Ground)
  • Pin 13: I/O5 (Channel 5 Bidirectional Data I/O)
  • Pin 14: A3 (Channel 3 Control Input)
  • Pin 15: VCC (Supply Voltage)
  • Pin 16: B3 (Channel 3 Control Input)
  • Pin 17: I/O6 (Channel 6 Bidirectional Data I/O)
  • Pin 18: B4 (Channel 4 Control Input)
  • Pin 19: I/O7 (Channel 7 Bidirectional Data I/O)
  • Pin 20: OE (Output Enable) - Active Low

Functional Features

  • Bidirectional voltage translation between different logic levels
  • Automatic direction sensing and control
  • Supports both push-pull and open-drain output configurations
  • Low power consumption
  • High-speed operation
  • Overvoltage tolerant inputs and outputs for mixed-voltage applications

Advantages and Disadvantages

Advantages: - Enables seamless communication between devices operating at different voltage levels - Wide supply voltage range allows compatibility with various systems - High-speed operation supports fast data transfer rates - Low power consumption helps in reducing overall system energy requirements

Disadvantages: - Limited number of channels (8 channels) - May require additional external components for specific applications - Not suitable for voltage translation involving very high voltages or extreme temperature conditions

Working Principles

The 74LVC8T245DBQRG4 is designed to translate signals between two different voltage domains. It uses a combination of level shifters and voltage translators to ensure compatibility between devices operating at different logic levels. The device automatically senses the direction of data flow and adjusts the voltage levels accordingly.

Detailed Application Field Plans

The 74LVC8T245DBQRG4 is commonly used in various applications, including:

  1. Microcontroller interfacing with different voltage peripherals
  2. Communication interfaces between different logic families (e.g., TTL and CMOS)
  3. Mixed-voltage systems where devices with different voltage requirements need to communicate

Detailed and Complete Alternative Models

Some alternative models that can be considered for similar applications include:

  1. SN74LVC8T245PW - TSSOP package, 20 pins, bidirectional level shifter
  2. NC7WZ245K8X - SC70 package, 8 channels, low-voltage bidirectional translator
  3. TXB0108PWR - TSSOP package, 8-bit bidirectional voltage-level translator

These alternatives offer similar functionality and can be chosen based on specific application requirements.

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기술 솔루션에 74LVC8T245DBQRG4 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

Sure! Here are 10 common questions and answers related to the application of 74LVC8T245DBQRG4 in technical solutions:

  1. Q: What is the 74LVC8T245DBQRG4? A: The 74LVC8T245DBQRG4 is a bidirectional voltage level translator integrated circuit (IC) that can be used to convert signals between different voltage levels.

  2. Q: What is the operating voltage range of the 74LVC8T245DBQRG4? A: The 74LVC8T245DBQRG4 operates within a voltage range of 1.65V to 5.5V.

  3. Q: How many channels does the 74LVC8T245DBQRG4 have? A: The 74LVC8T245DBQRG4 has 8 bidirectional channels, allowing for simultaneous translation of up to 8 signals.

  4. Q: Can the 74LVC8T245DBQRG4 handle high-speed data transmission? A: Yes, the 74LVC8T245DBQRG4 is designed to support high-speed data transmission with a maximum data rate of 400 Mbps.

  5. Q: Is the 74LVC8T245DBQRG4 compatible with both CMOS and TTL logic levels? A: Yes, the 74LVC8T245DBQRG4 is compatible with both CMOS and TTL logic levels, making it versatile for various applications.

  6. Q: Does the 74LVC8T245DBQRG4 require external pull-up or pull-down resistors? A: No, the 74LVC8T245DBQRG4 has built-in pull-up and pull-down resistors, eliminating the need for external components.

  7. Q: Can the 74LVC8T245DBQRG4 be used in mixed-voltage systems? A: Yes, the 74LVC8T245DBQRG4 is commonly used in mixed-voltage systems to enable communication between devices operating at different voltage levels.

  8. Q: What is the maximum output current of the 74LVC8T245DBQRG4? A: The 74LVC8T245DBQRG4 can source or sink up to 32 mA of current per channel.

  9. Q: Does the 74LVC8T245DBQRG4 have any built-in ESD protection? A: Yes, the 74LVC8T245DBQRG4 has built-in ESD protection, providing robustness against electrostatic discharge events.

  10. Q: What package does the 74LVC8T245DBQRG4 come in? A: The 74LVC8T245DBQRG4 is available in a 20-pin SSOP (Shrink Small Outline Package) with a body size of 5.3 mm x 6.2 mm.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's specifications of the 74LVC8T245DBQRG4.