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74ALVC2245WM
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74ALVC2245WM

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Bus Transceiver
  • Characteristics: High-speed, low-power, bidirectional voltage level translation
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Transfers data between two bidirectional bus systems with different voltage levels
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 1.2V to 3.6V
  • Input Voltage Range: -0.5V to VCC + 0.5V
  • Output Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay: 2.8ns (typical)
  • Output Drive Capability: ±24mA

Detailed Pin Configuration

The 74ALVC2245WM has a total of 20 pins, which are assigned as follows:

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

Functional Features

  • Bidirectional voltage level translation between two bus systems
  • Automatic direction control based on DIR input
  • Output enable control for tri-state operation
  • High-speed operation with low power consumption
  • ESD protection on all inputs and outputs

Advantages and Disadvantages

Advantages: - High-speed data transfer - Low power consumption - Bidirectional voltage level translation - ESD protection

Disadvantages: - Limited supply voltage range (1.2V to 3.6V) - Propagation delay may affect timing in certain applications

Working Principles

The 74ALVC2245WM is designed to facilitate the transfer of data between two bidirectional bus systems operating at different voltage levels. The direction of data flow is controlled by the DIR pin, which determines whether the data is transmitted from Bus A to Bus B or vice versa. The OE pins enable or disable the outputs, allowing for tri-state operation.

Detailed Application Field Plans

The 74ALVC2245WM is commonly used in various applications, including:

  1. Microprocessor interfacing
  2. Data communication systems
  3. Industrial automation
  4. Automotive electronics
  5. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the 74ALVC2245WM are:

  1. SN74LVC245A
  2. MC74LVX245
  3. 74HCT245
  4. CD74HCT245E
  5. 74ACT245

These models offer similar functionality and can be used as replacements depending on specific requirements.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de 74ALVC2245WM en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of 74ALVC2245WM in technical solutions:

  1. Q: What is the 74ALVC2245WM? A: The 74ALVC2245WM is a bidirectional octal bus transceiver with 3-state outputs, commonly used for voltage level translation and interfacing between different logic families.

  2. Q: What is the operating voltage range of the 74ALVC2245WM? A: The 74ALVC2245WM operates within a voltage range of 1.65V to 3.6V.

  3. Q: How many bidirectional channels does the 74ALVC2245WM have? A: The 74ALVC2245WM has 8 bidirectional channels, allowing for simultaneous data transmission in both directions.

  4. Q: Can the 74ALVC2245WM handle high-speed data transfers? A: Yes, the 74ALVC2245WM is designed to support high-speed data transfers with a maximum propagation delay of 3.8 ns.

  5. Q: What is the purpose of the 3-state outputs in the 74ALVC2245WM? 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: Can the 74ALVC2245WM be used for voltage level translation between different logic families? A: Yes, the 74ALVC2245WM is suitable for voltage level translation between various logic families, such as TTL and CMOS.

  7. Q: What is the maximum current that can be sourced or sunk by the 74ALVC2245WM? A: The 74ALVC2245WM can source or sink up to 24 mA of current per channel.

  8. Q: Is the 74ALVC2245WM compatible with hot-swapping applications? A: Yes, the 74ALVC2245WM is designed to support hot-swapping, allowing for the insertion and removal of devices without disrupting the operation of the system.

  9. Q: Can the 74ALVC2245WM be used in battery-powered applications? A: Yes, the 74ALVC2245WM has a low power consumption and can be used in battery-powered applications.

  10. Q: What package options are available for the 74ALVC2245WM? A: The 74ALVC2245WM is available in various package options, including SOIC, TSSOP, and TVSOP, providing flexibility for different PCB layouts and space constraints.

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