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74ABT245CMTC
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Encyclopedia Entry: 74ABT245CMTC

Product Overview

Category

The 74ABT245CMTC belongs to the category of integrated circuits (ICs) and specifically falls under the group of bus transceivers.

Use

This IC is commonly used for bidirectional level shifting between two buses with different voltage levels. It enables the transfer of data between systems operating at different voltage levels, ensuring compatibility and seamless communication.

Characteristics

  • Bidirectional data transfer
  • Voltage level shifting capability
  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
  • Robust design for noise immunity

Package

The 74ABT245CMTC is available in a small outline integrated circuit (SOIC) package. This package offers compactness and ease of integration into various electronic systems.

Essence

The essence of the 74ABT245CMTC lies in its ability to facilitate efficient and reliable data transfer between buses operating at different voltage levels, thereby enabling seamless communication between diverse electronic components.

Packaging/Quantity

The 74ABT245CMTC is typically packaged in reels or tubes, containing a quantity of 250 units per package.

Specifications

  • Supply Voltage Range: 4.5V to 5.5V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Maximum Data Rate: 100 MHz
  • Number of Pins: 20
  • Pin Pitch: 0.65mm

Detailed Pin Configuration

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

Functional Features

  • Bidirectional data transfer between two buses
  • Automatic direction control based on DIR and BDIR inputs
  • Output enable/disable functionality for bus isolation
  • High-speed operation for efficient data transfer
  • Robust design with noise immunity for reliable performance

Advantages and Disadvantages

Advantages

  • Enables seamless communication between systems with different voltage levels
  • Compact package for easy integration into electronic systems
  • Wide operating voltage range allows for versatile applications
  • High-speed operation ensures efficient data transfer
  • Low power consumption for energy-efficient designs

Disadvantages

  • Limited to bidirectional data transfer between two buses only
  • Requires careful consideration of voltage level compatibility between the connected buses

Working Principles

The 74ABT245CMTC operates by monitoring the direction control inputs (DIR and BDIR) to determine the desired data transfer direction. Based on these inputs, the IC automatically controls the bidirectional flow of data between the two buses. The output enable (OE) pin can be used to enable or disable the data transfer, providing bus isolation when needed.

Detailed Application Field Plans

The 74ABT245CMTC finds applications in various electronic systems where bidirectional level shifting is required. Some common application fields include:

  1. Microcontroller interfacing with different voltage peripherals
  2. Communication interfaces between devices operating at different voltage levels
  3. Data transfer between mixed-signal integrated circuits
  4. Industrial automation systems requiring voltage level translation
  5. Automotive electronics for connecting components with varying voltage requirements

Detailed and Complete Alternative Models

  1. SN74LVC245A: Low-voltage CMOS octal bus transceiver
  2. CD74HCT245E: High-speed CMOS octal bus transceiver
  3. MC74VHC245DW: Voltage level shifting bus transceiver
  4. 74ACT245SCX: Advanced CMOS octal bus transceiver

These alternative models offer similar functionality to the 74ABT245CMTC and can be considered as alternatives based on specific design requirements.

In conclusion, the 74ABT245CMTC is a versatile integrated circuit that enables efficient bidirectional level shifting

Seznam 10 běžných otázek a odpovědí souvisejících s aplikací 74ABT245CMTC v technických řešeních

Sure! Here are 10 common questions and answers related to the application of 74ABT245CMTC in technical solutions:

  1. Q: What is the 74ABT245CMTC? A: The 74ABT245CMTC is a bidirectional octal bus transceiver with 3-state outputs, commonly used for interfacing between different voltage levels or logic families.

  2. Q: What is the maximum operating voltage for the 74ABT245CMTC? A: The maximum operating voltage for the 74ABT245CMTC is typically 5.5V.

  3. Q: Can the 74ABT245CMTC be used to convert signals between TTL and CMOS logic levels? A: Yes, the 74ABT245CMTC can be used as a level shifter to convert signals between TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic levels.

  4. Q: How many bidirectional channels does the 74ABT245CMTC have? A: The 74ABT245CMTC has 8 bidirectional channels, allowing for the simultaneous transfer of data in both directions.

  5. Q: What is the purpose of the 3-state outputs in the 74ABT245CMTC? A: The 3-state outputs allow the device to be effectively disconnected from the bus, enabling multiple devices to share the same bus without interfering with each other.

  6. Q: What is the maximum data transfer rate supported by the 74ABT245CMTC? A: The 74ABT245CMTC supports high-speed data transfer rates up to several hundred megahertz.

  7. Q: Can the 74ABT245CMTC be used in applications requiring bi-directional level shifting? A: Yes, the bidirectional nature of the 74ABT245CMTC makes it suitable for applications that require bi-directional level shifting, such as I2C or SPI communication.

  8. Q: What is the power supply voltage range for the 74ABT245CMTC? A: The power supply voltage range for the 74ABT245CMTC typically spans from 4.5V to 5.5V.

  9. Q: Can the 74ABT245CMTC be used in automotive applications? A: Yes, the 74ABT245CMTC is often used in automotive applications due to its robustness and ability to handle wide temperature ranges.

  10. Q: Are there any specific precautions to consider when using the 74ABT245CMTC? A: It is important to ensure proper decoupling capacitors are used near the power supply pins to minimize noise and voltage fluctuations. Additionally, attention should be given to signal integrity and impedance matching when designing PCB layouts involving the 74ABT245CMTC.