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74LVXC4245QSC

74LVXC4245QSC

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Voltage Level Shifter and Bus Transceiver
  • Characteristics: Bi-directional, 8-bit, non-inverting, 3-state output
  • Package: QSOP (Quarter Small Outline Package)
  • Essence: High-speed CMOS technology for voltage level shifting and bus transceiving
  • Packaging/Quantity: Available in reels or tubes, quantity varies based on supplier

Specifications

  • Supply Voltage Range: 1.65V to 5.5V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Maximum Operating Frequency: 100MHz
  • Number of Channels: 8
  • Output Drive Capability: ±24mA
  • Propagation Delay: 4.5ns (max) at 3.3V supply, 6.5ns (max) at 2.5V supply

Detailed Pin Configuration

The 74LVXC4245QSC has a total of 24 pins, which are divided into two groups: - Group A (pins 1-12): Contains the bidirectional data I/O pins (A1-A8 and B1-B8), as well as the direction control pins (DIR and OE). - Group B (pins 13-24): Consists of the VCC and GND pins, as well as the voltage translation control pins (VT).

Functional Features

  • Bi-directional Data Transfer: Allows bidirectional communication between different voltage domains.
  • Non-Inverting: The input signal is not inverted at the output.
  • 3-State Output: The outputs can be disabled, allowing multiple devices to share a common bus without interference.
  • Voltage Level Shifting: Translates signals between different voltage levels, ensuring compatibility between different logic families.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - High-speed operation enables efficient data transfer. - 3-state output capability facilitates bus sharing and reduces conflicts. - Small QSOP package saves board space.

Disadvantages: - Limited number of channels (8) may not be sufficient for complex systems requiring more connections. - Propagation delay may affect timing in high-speed applications.

Working Principles

The 74LVXC4245QSC utilizes high-speed CMOS technology to perform voltage level shifting and bus transceiving. It operates by receiving input signals from one voltage domain, translating them to the desired voltage level, and then transmitting them to another voltage domain. The direction control pin (DIR) determines the direction of data flow, while the output enable pin (OE) enables or disables the outputs. The voltage translation control pin (VT) sets the voltage level for bidirectional data transfer.

Detailed Application Field Plans

The 74LVXC4245QSC is commonly used in various applications, including: 1. Communication Systems: Facilitates signal transmission between devices operating at different voltage levels. 2. Microcontroller Interfacing: Enables communication between microcontrollers and peripheral devices with varying voltage requirements. 3. Industrial Automation: Allows for seamless integration of sensors, actuators, and control systems operating at different voltage levels. 4. Automotive Electronics: Supports voltage level shifting in automotive communication networks, such as CAN (Controller Area Network) buses.

Detailed and Complete Alternative Models

  1. SN74LVC4245A: Similar functionality, available in different package options (SOIC, TSSOP).
  2. MC74LCX245: Comparable features, offered in various package types (PDIP, SOIC, TSSOP).
  3. 74HCT245: Alternative option with higher drive capability, suitable for demanding applications.

(Note: The above alternative models are provided for reference and may have slight variations in specifications and pin configuration. It is recommended to refer to the respective datasheets for detailed information.)

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技術ソリューションにおける 74LVXC4245QSC の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of 74LVXC4245QSC in technical solutions:

  1. Question: What is the function of the 74LVXC4245QSC?
    Answer: The 74LVXC4245QSC is a bidirectional voltage level translator and transceiver IC.

  2. Question: What is the operating voltage range of the 74LVXC4245QSC?
    Answer: The operating voltage range is from 1.65V to 3.6V.

  3. Question: Can the 74LVXC4245QSC be used for level shifting between different voltage domains?
    Answer: Yes, it can be used to translate signals between different voltage levels, making it suitable for level shifting applications.

  4. Question: What is the maximum data rate supported by the 74LVXC4245QSC?
    Answer: The maximum data rate is typically around 100 Mbps.

  5. Question: Does the 74LVXC4245QSC support bi-directional communication?
    Answer: Yes, it supports bidirectional communication, allowing data to flow in both directions.

  6. Question: Can the 74LVXC4245QSC be used with I2C or SPI interfaces?
    Answer: Yes, it can be used with I2C or SPI interfaces as a voltage level translator.

  7. Question: What is the output drive strength of the 74LVXC4245QSC?
    Answer: The output drive strength is typically around 24 mA.

  8. Question: Is the 74LVXC4245QSC compatible with other logic families?
    Answer: Yes, it is compatible with various logic families such as TTL, CMOS, and LVCMOS.

  9. Question: Can the 74LVXC4245QSC be used in mixed-voltage systems?
    Answer: Yes, it is commonly used in mixed-voltage systems to ensure proper signal translation.

  10. Question: Are there any specific precautions to consider when using the 74LVXC4245QSC?
    Answer: It is important to ensure that the voltage levels and signal timings are within the specified limits to avoid any potential issues with signal integrity or data corruption.

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