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M74HC245TTR
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M74HC245TTR

Product Overview

Category

M74HC245TTR belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for signal level shifting and voltage translation in digital systems.

Characteristics

  • High-speed operation
  • Wide voltage range compatibility
  • Low power consumption
  • Schmitt trigger inputs for noise immunity
  • 3-state outputs for bus-oriented applications

Package

M74HC245TTR is available in a TSSOP (Thin Shrink Small Outline Package) package.

Essence

The essence of M74HC245TTR lies in its ability to facilitate bidirectional communication between two voltage domains, ensuring seamless data transfer.

Packaging/Quantity

Typically, M74HC245TTR is packaged in reels containing 2500 units.

Specifications

  • Supply Voltage Range: 2V to 6V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Maximum Operating Frequency: 80 MHz
  • Number of Channels: 8

Detailed Pin Configuration

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

Functional Features

  • Bidirectional voltage level shifting
  • Non-inverting logic translation
  • 3-state outputs for bus sharing
  • Schmitt trigger inputs for noise immunity
  • High-speed operation for efficient data transfer

Advantages and Disadvantages

Advantages

  • Wide voltage range compatibility allows integration into various systems.
  • Low power consumption ensures energy efficiency.
  • Schmitt trigger inputs provide robustness against noise.
  • 3-state outputs enable bus-oriented applications.

Disadvantages

  • Limited number of channels (8) may restrict certain applications requiring more channels.
  • Maximum operating frequency (80 MHz) may not be sufficient for high-speed applications.

Working Principles

M74HC245TTR operates by receiving input signals from one voltage domain and translating them to the appropriate voltage levels of another domain. The direction control pin (DIR) determines the direction of data flow. When enabled, the IC performs bidirectional voltage level shifting, allowing seamless communication between different voltage domains.

Detailed Application Field Plans

M74HC245TTR finds extensive use in various digital systems, including but not limited to: - Microcontroller interfacing - Data communication between devices operating at different voltage levels - Bus-oriented architectures - Industrial automation systems - Robotics and control systems

Detailed and Complete Alternative Models

  1. SN74HC245N: Similar functionality, available in DIP package.
  2. CD74HCT245E: Compatible features, available in PDIP package.
  3. 74LVC245APW: Low-voltage compatible alternative, available in TSSOP package.

These alternative models offer similar or compatible functionality to M74HC245TTR, providing flexibility in choosing the most suitable option for specific applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací M74HC245TTR v technických řešeních

Sure! Here are 10 common questions and answers related to the application of M74HC245TTR in technical solutions:

  1. Q: What is the M74HC245TTR? A: The M74HC245TTR is a high-speed octal bus transceiver with 3-state outputs, commonly used for bidirectional data transfer between different voltage levels.

  2. Q: What is the maximum operating voltage for the M74HC245TTR? A: The M74HC245TTR has a maximum operating voltage of 5.5V.

  3. Q: Can the M74HC245TTR be used for level shifting between different voltage domains? A: Yes, the M74HC245TTR can be used for level shifting between voltage domains, as it supports bidirectional data transfer.

  4. Q: What is the maximum data transfer rate supported by the M74HC245TTR? A: The M74HC245TTR can support data transfer rates up to 100 MHz.

  5. Q: How many input/output pins does the M74HC245TTR have? A: The M74HC245TTR has 8 input/output pins, making it suitable for applications requiring bidirectional communication between two devices.

  6. Q: Does the M74HC245TTR have any built-in protection features? A: No, the M74HC245TTR does not have built-in protection features. Additional external circuitry may be required for overvoltage or ESD protection.

  7. Q: Can the M74HC245TTR be used in both parallel and serial communication systems? A: Yes, the M74HC245TTR can be used in both parallel and serial communication systems, depending on the specific application requirements.

  8. Q: What is the power supply voltage range for the M74HC245TTR? A: The power supply voltage range for the M74HC245TTR is typically between 2V and 6V.

  9. Q: Can the M74HC245TTR be used in automotive applications? A: Yes, the M74HC245TTR is suitable for automotive applications as it can operate within the required temperature range and has a wide supply voltage range.

  10. Q: Are there any specific layout considerations when using the M74HC245TTR? A: Yes, it is recommended to follow proper PCB layout guidelines, such as minimizing trace lengths, providing adequate decoupling capacitors, and ensuring proper signal integrity for optimal performance.

Please note that these answers are general and may vary depending on the specific application and requirements.