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74HCT245D,653
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74HCT245D,653

Product Overview

Category

The 74HCT245D,653 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used for signal level shifting and voltage translation in various electronic applications.

Characteristics

  • High-speed operation
  • Wide voltage range compatibility
  • Low power consumption
  • Schmitt-trigger action on all inputs
  • Balanced propagation delays
  • Symmetrical output impedance

Package

The 74HCT245D,653 is available in a standard SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of this product lies in its ability to provide bidirectional voltage level shifting between different logic levels.

Packaging/Quantity

The 74HCT245D,653 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications

  • Supply Voltage Range: 4.5V to 5.5V
  • Input Voltage Range: GND to VCC
  • Output Voltage Range: GND to VCC
  • Operating Temperature Range: -40°C to +125°C
  • Input Capacitance: 3.5pF
  • Output Capacitance: 6pF
  • Input Leakage Current: ±1μA
  • Output Leakage Current: ±1μA
  • Maximum Propagation Delay: 15ns

Detailed Pin Configuration

The 74HCT245D,653 has a total of 20 pins, which are assigned specific functions as follows:

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

Functional Features

  • Bidirectional voltage level shifting
  • Non-inverting logic translation
  • High-speed operation
  • Schmitt-trigger action for noise immunity
  • Enable/disable control for output tri-state

Advantages and Disadvantages

Advantages

  • Wide voltage range compatibility allows for versatile use in different applications.
  • Balanced propagation delays ensure reliable signal transmission.
  • Low power consumption contributes to energy efficiency.

Disadvantages

  • Limited number of input/output channels (8-bit bidirectional).

Working Principles

The 74HCT245D,653 operates by receiving input signals from one logic level and translating them to another logic level bidirectionally. The direction of the translation is controlled by the DIR pin. When the DIR pin is set to a specific logic level, the IC will shift the input signals accordingly.

Detailed Application Field Plans

The 74HCT245D,653 finds application in various electronic systems, including but not limited to: - Microcontroller interfacing - Data communication interfaces - Level shifting between different logic families - Bus transceivers

Detailed and Complete Alternative Models

Some alternative models that provide similar functionality to the 74HCT245D,653 include: - SN74LVC245A - CD74HCT245E - MC74HCT245AN - 74HC245D

These alternative models can be considered based on specific requirements and availability.

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Wymień 10 typowych pytań i odpowiedzi związanych z zastosowaniem 74HCT245D,653 w rozwiązaniach technicznych

Sure! Here are 10 common questions and answers related to the application of 74HCT245D,653 in technical solutions:

  1. Q: What is the 74HCT245D,653? A: The 74HCT245D,653 is a high-speed octal bus transceiver with 3-state outputs. It can be used for bidirectional level shifting between different voltage domains.

  2. Q: What is the maximum operating voltage for the 74HCT245D,653? A: The maximum operating voltage for the 74HCT245D,653 is 5.5V.

  3. Q: Can the 74HCT245D,653 handle both TTL and CMOS logic levels? A: Yes, the 74HCT245D,653 is compatible with both TTL and CMOS logic levels.

  4. Q: How many input/output pins does the 74HCT245D,653 have? A: The 74HCT245D,653 has 8 input/output pins.

  5. Q: What is the maximum data transfer rate supported by the 74HCT245D,653? A: The maximum data transfer rate supported by the 74HCT245D,653 is typically around 80 MHz.

  6. Q: Can the 74HCT245D,653 be used for level shifting between different voltage domains? A: Yes, the 74HCT245D,653 can be used for bidirectional level shifting between different voltage domains.

  7. Q: Does the 74HCT245D,653 have built-in protection against overvoltage or ESD events? A: No, the 74HCT245D,653 does not have built-in protection against overvoltage or ESD events. External protection measures may be required.

  8. Q: What is the power supply voltage range for the 74HCT245D,653? A: The power supply voltage range for the 74HCT245D,653 is typically between 4.5V and 5.5V.

  9. Q: Can the 74HCT245D,653 be used in both digital and analog applications? A: The 74HCT245D,653 is primarily designed for digital applications. It may not be suitable for high-precision analog applications.

  10. Q: Are there any specific layout considerations when using the 74HCT245D,653? A: Yes, it is recommended to follow proper PCB layout guidelines to minimize noise and ensure signal integrity when using the 74HCT245D,653.