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MC74VHC245DT
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MC74VHC245DT

Product Overview

Category

MC74VHC245DT belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for signal level shifting and voltage translation in various electronic devices.

Characteristics

  • High-speed operation
  • Wide voltage range
  • Low power consumption
  • Compatibility with TTL inputs
  • Schmitt trigger action on all inputs
  • Balanced propagation delays

Package

MC74VHC245DT is available in a 20-pin TSSOP (Thin Shrink Small Outline Package) format.

Essence

The essence of MC74VHC245DT lies in its ability to efficiently shift and translate voltage levels, ensuring seamless communication between different parts of an electronic circuit.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of MC74VHC245DT ICs.

Specifications

  • Supply Voltage: 2.0V to 5.5V
  • Input Voltage: 0V to VCC
  • Output Voltage: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Propagation Delay: 6ns
  • Maximum Quiescent Current: 4μA

Detailed Pin Configuration

  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 translation
  • High-speed operation
  • Schmitt trigger inputs for noise immunity
  • Output enable control for easy interfacing

Advantages and Disadvantages

Advantages

  • Wide voltage range compatibility
  • Low power consumption
  • High-speed operation
  • Noise immunity due to Schmitt trigger inputs
  • Easy interfacing with output enable control

Disadvantages

  • Limited number of input/output pins (8-bit)

Working Principles

MC74VHC245DT operates by receiving input signals on the A1-A8 and B1-B8 pins, which are then translated and shifted to the corresponding output pins B1-B8 and A1-A8, respectively. The direction of translation is controlled by the DIR pin. When the DIR pin is set to a specific logic level, the translation occurs from A to B or from B to A.

Detailed Application Field Plans

MC74VHC245DT finds applications in various electronic devices and systems, including but not limited to: - Microcontrollers - Data communication systems - Industrial automation - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to MC74VHC245DT are: - SN74LVC245A - CD74HCT245 - 74ACT245 - 74HC245

These alternative models offer similar functionality and characteristics, providing flexibility in choosing the most suitable option for specific applications.

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Wymień 10 typowych pytań i odpowiedzi związanych z zastosowaniem MC74VHC245DT w rozwiązaniach technicznych

Sure! Here are 10 common questions and answers related to the application of MC74VHC245DT in technical solutions:

  1. Q: What is MC74VHC245DT? A: MC74VHC245DT is a type of octal bus transceiver that can be used to enable bidirectional level shifting between different voltage domains.

  2. Q: What is the maximum operating voltage for MC74VHC245DT? A: The maximum operating voltage for MC74VHC245DT is typically 5.5 volts.

  3. Q: Can MC74VHC245DT be used for level shifting between 3.3V and 5V systems? A: Yes, MC74VHC245DT is commonly used for level shifting between 3.3V and 5V systems due to its compatibility with both voltage levels.

  4. Q: How many channels does MC74VHC245DT have? A: MC74VHC245DT has 8 bidirectional channels, allowing for simultaneous data transfer in both directions.

  5. Q: What is the maximum data rate supported by MC74VHC245DT? A: MC74VHC245DT can support data rates up to several hundred megahertz, depending on the specific application and conditions.

  6. Q: Is MC74VHC245DT suitable for high-speed applications? A: Yes, MC74VHC245DT is designed to handle high-speed signals and can be used in various high-speed applications.

  7. Q: Does MC74VHC245DT require external pull-up or pull-down resistors? A: No, MC74VHC245DT has built-in input/output resistors, eliminating the need for external pull-up or pull-down resistors.

  8. Q: Can MC74VHC245DT be used in both parallel and serial communication systems? A: Yes, MC74VHC245DT can be used in both parallel and serial communication systems, depending on the specific configuration and requirements.

  9. Q: What is the power supply voltage range for MC74VHC245DT? A: The power supply voltage range for MC74VHC245DT is typically between 2V and 5.5V.

  10. Q: Are there any special considerations for PCB layout when using MC74VHC245DT? A: It is recommended to follow proper PCB layout guidelines, such as minimizing trace lengths and ensuring proper decoupling capacitors, to optimize the performance of MC74VHC245DT.

Please note that these answers are general and may vary depending on the specific application and datasheet specifications of MC74VHC245DT.