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MC74LCX245MNTWG
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MC74LCX245MNTWG

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Logic Level Shifter
  • Characteristics:
    • Low voltage operation
    • High-speed logic level shifting
    • Bidirectional data transfer
  • Package: TSSOP-20
  • Essence: Logic level shifting between different voltage levels
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 2.3V to 3.6V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Maximum Input Current: ±10mA
  • Maximum Output Current: ±24mA
  • Propagation Delay: 4.5ns (typical)
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

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

Functional Features

  • Bidirectional logic level shifting between two voltage domains
  • Allows interfacing between devices operating at different voltage levels
  • High-speed data transfer with minimal propagation delay
  • Output enable control for easy integration into complex systems

Advantages

  • Wide supply voltage range allows compatibility with various systems
  • Low voltage operation reduces power consumption
  • Bidirectional data transfer simplifies circuit design
  • High-speed logic level shifting enables fast communication between devices

Disadvantages

  • Limited to logic level shifting and does not perform other functions
  • Requires careful consideration of voltage compatibility between devices

Working Principles

The MC74LCX245MNTWG is a bidirectional logic level shifter that allows data transfer between two voltage domains. It operates by converting the logic levels of input signals to match the voltage levels of the output signals. The direction of data transfer is controlled by the DIR pin. When DIR is high, data flows from A-side to B-side, and when DIR is low, data flows from B-side to A-side.

Detailed Application Field Plans

The MC74LCX245MNTWG is commonly used in various applications where logic level shifting is required. Some of the typical application fields include: - Communication systems - Microcontroller interfacing - Data acquisition systems - Industrial automation - Consumer electronics

Detailed and Complete Alternative Models

  • SN74LVC245A
  • 74HCT245
  • CD74HCT245E
  • 74LVCH245A
  • 74ACT245

(Note: This list is not exhaustive and there are several other alternative models available in the market.)

This entry provides an overview of the MC74LCX245MNTWG logic level shifter. It includes basic information such as its category, use, characteristics, package, essence, packaging/quantity details, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and a list of alternative models.

10個與MC74LCX245MNTWG在技術方案中應用相關的常見問題與解答

Sure! Here are 10 common questions and answers related to the application of MC74LCX245MNTWG in technical solutions:

  1. Q: What is MC74LCX245MNTWG? A: MC74LCX245MNTWG is a specific type of integrated circuit (IC) known as a bus transceiver. It is commonly used for level shifting and signal buffering in digital systems.

  2. Q: What is the purpose of using MC74LCX245MNTWG in technical solutions? A: MC74LCX245MNTWG is used to enable bidirectional communication between two different voltage domains, ensuring proper signal translation and compatibility.

  3. Q: What voltage levels does MC74LCX245MNTWG support? A: MC74LCX245MNTWG supports voltage levels ranging from 1.65V to 5.5V, making it suitable for interfacing between different logic families or devices with varying voltage requirements.

  4. Q: How many channels does MC74LCX245MNTWG have? A: MC74LCX245MNTWG has 8 bidirectional channels, allowing for simultaneous data transmission in both directions.

  5. Q: Can MC74LCX245MNTWG handle high-speed signals? A: Yes, MC74LCX245MNTWG is designed to operate at high speeds, typically up to several hundred megahertz (MHz), making it suitable for various applications requiring fast data transfer.

  6. Q: Is MC74LCX245MNTWG compatible with different logic families? A: Yes, MC74LCX245MNTWG is compatible with various logic families such as TTL, CMOS, and LVTTL, making it versatile for use in different system designs.

  7. Q: Does MC74LCX245MNTWG have any built-in protection features? A: Yes, MC74LCX245MNTWG incorporates ESD (electrostatic discharge) protection on its inputs and outputs, safeguarding against potential damage from static electricity.

  8. Q: Can MC74LCX245MNTWG be used in both 3.3V and 5V systems? A: Yes, MC74LCX245MNTWG is designed to work with both 3.3V and 5V systems, providing voltage level translation between these two common logic levels.

  9. Q: What is the maximum current that MC74LCX245MNTWG can source or sink? A: MC74LCX245MNTWG can typically source or sink up to 24mA of current per channel, allowing it to drive moderate loads without requiring additional buffering.

  10. Q: Are there any specific layout considerations when using MC74LCX245MNTWG? A: Yes, it is recommended to follow proper PCB layout guidelines, including minimizing trace lengths, reducing noise coupling, and providing adequate decoupling capacitors for stable operation.

Please note that the answers provided here are general and may vary depending on the specific application and requirements. It is always advisable to refer to the manufacturer's datasheet and application notes for detailed information.