ON Semiconductor
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74LVTH2245SJ
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74LVTH2245SJ

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Level Shifter and Bus Transceiver
  • Characteristics: High-speed, low-power, bidirectional voltage level translation
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Translates signals between different voltage levels in digital systems
  • Packaging/Quantity: Available in reels of 2500 pieces

Specifications

  • Supply Voltage Range: 2.7V to 3.6V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Maximum Operating Frequency: 200MHz
  • Number of Channels: 8
  • Input/Output Type: Tri-State

Detailed Pin Configuration

  1. OE (Output Enable) - Active Low Output Enable
  2. A1-A8 - Data Inputs/Outputs
  3. B1-B8 - Data Inputs/Outputs
  4. GND (Ground) - Ground Reference
  5. VCC - Power Supply
  6. DIR (Direction Control) - Direction Control Input

Functional Features

  • Bidirectional voltage level translation between two voltage domains
  • Allows interfacing between devices operating at different voltage levels
  • Supports both unidirectional and bidirectional bus-oriented applications
  • Provides high-speed operation with low power consumption
  • Enables tri-state outputs for bus sharing and multiplexing applications

Advantages

  • Wide supply voltage range allows compatibility with various systems
  • High-speed operation enables efficient data transfer
  • Low-power consumption helps conserve energy
  • Tri-state outputs facilitate bus sharing and multiplexing
  • Bidirectional capability simplifies system design

Disadvantages

  • Limited to a maximum operating frequency of 200MHz
  • Not suitable for applications requiring higher voltage translation ranges
  • May require additional components for level shifting beyond specified voltage ranges

Working Principles

The 74LVTH2245SJ is a bidirectional level shifter and bus transceiver. It utilizes a combination of CMOS and TTL technologies to translate signals between two voltage domains. The direction of signal flow is controlled by the DIR pin. When DIR is high, data flows from A1-A8 to B1-B8, and when DIR is low, data flows in the opposite direction.

The OE pin is used to enable or disable the outputs. When OE is low, the outputs are active, allowing data transmission. Conversely, when OE is high, the outputs are disabled, entering a high-impedance state.

The IC operates within a specified supply voltage range and translates signals between the input and output voltage levels accordingly. It provides efficient and reliable voltage level translation for various digital systems.

Detailed Application Field Plans

The 74LVTH2245SJ finds applications in various fields, including: 1. Microcontroller interfacing with different voltage peripherals 2. Communication systems requiring voltage level translation 3. Data acquisition systems with mixed voltage sensors 4. Industrial automation and control systems 5. Automotive electronics for signal conditioning and communication

Detailed and Complete Alternative Models

Some alternative models that provide similar functionality to the 74LVTH2245SJ include: 1. SN74LVC245A - Octal Bus Transceiver with 3-State Outputs 2. MC74VHC245 - Octal Bus Transceiver with 3-State Outputs 3. CD74HCT245 - High-Speed CMOS Logic Octal Bus Transceiver

These alternatives offer comparable features and can be considered based on specific application requirements.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van 74LVTH2245SJ in technische oplossingen

Sure! Here are 10 common questions and answers related to the application of 74LVTH2245SJ in technical solutions:

  1. Q: What is the 74LVTH2245SJ? A: The 74LVTH2245SJ is a high-speed, low-voltage, octal bus transceiver with 3-state outputs.

  2. Q: What is the operating voltage range of the 74LVTH2245SJ? A: The operating voltage range is typically between 1.65V and 3.6V.

  3. Q: What is the maximum data transfer rate supported by the 74LVTH2245SJ? A: The 74LVTH2245SJ supports a maximum data transfer rate of up to 400 Mbps.

  4. Q: Can the 74LVTH2245SJ be used for bidirectional communication? A: Yes, the 74LVTH2245SJ can be used for bidirectional communication as it has separate input and output ports.

  5. Q: How many channels does the 74LVTH2245SJ have? A: The 74LVTH2245SJ has 8 bidirectional channels.

  6. Q: What is the purpose of the 3-state outputs in the 74LVTH2245SJ? A: The 3-state outputs allow the device to be disconnected from the bus, effectively putting it in a high-impedance state.

  7. Q: Can the 74LVTH2245SJ handle level shifting between different voltage domains? A: Yes, the 74LVTH2245SJ can be used for level shifting between different voltage domains as long as they fall within its operating voltage range.

  8. Q: What is the typical propagation delay of the 74LVTH2245SJ? A: The typical propagation delay is around 3.8 ns.

  9. Q: Can the 74LVTH2245SJ be used in high-speed applications? A: Yes, the 74LVTH2245SJ is designed for high-speed operation and can be used in applications that require fast data transfer.

  10. Q: Are there any specific precautions to consider when using the 74LVTH2245SJ? A: It is important to ensure that the input voltage levels are within the specified range and that the device is properly decoupled to minimize noise and ensure reliable operation.

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