Texas Instruments
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SN74LVTH543NSR
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SN74LVTH543NSR

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Level Shifter and Bus Transceiver
  • Characteristics: High-speed, low-voltage, and low-power consumption
  • Package: 20-pin small-outline integrated circuit (SOIC)
  • Essence: Transfers data between two different voltage domains
  • Packaging/Quantity: Tape and reel packaging, 2500 units per reel

Specifications

  • Supply Voltage Range: 2.7V to 3.6V
  • Logic Voltage Levels: 1.65V to 3.6V
  • Input/Output Compatibility: TTL, CMOS
  • Output Drive Capability: ±12mA
  • Propagation Delay: 4.5ns (Max)
  • Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The SN74LVTH543NSR has a total of 20 pins, which are assigned as follows:

  1. OE (Output Enable) A
  2. I/O0A (Data Input/Output) A
  3. I/O1A (Data Input/Output) A
  4. GND (Ground)
  5. I/O2A (Data Input/Output) A
  6. I/O3A (Data Input/Output) A
  7. VCC (Supply Voltage)
  8. I/O4A (Data Input/Output) A
  9. I/O5A (Data Input/Output) A
  10. I/O6A (Data Input/Output) A
  11. I/O7A (Data Input/Output) A
  12. GND (Ground)
  13. I/O7B (Data Input/Output) B
  14. I/O6B (Data Input/Output) B
  15. I/O5B (Data Input/Output) B
  16. I/O4B (Data Input/Output) B
  17. VCC (Supply Voltage)
  18. I/O3B (Data Input/Output) B
  19. I/O2B (Data Input/Output) B
  20. I/O1B (Data Input/Output) B

Functional Features

  • Bidirectional data transfer between two voltage domains
  • Output enable control for tristate operation
  • 3-state outputs for bus-oriented applications
  • High-speed operation with low power consumption
  • TTL and CMOS compatible input/output levels

Advantages and Disadvantages

Advantages: - High-speed data transfer - Low-voltage operation - Low-power consumption - Tristate outputs for bus-oriented applications

Disadvantages: - Limited supply voltage range (2.7V to 3.6V) - Not suitable for applications requiring higher drive capability

Working Principles

The SN74LVTH543NSR is a level shifter and bus transceiver IC that allows bidirectional data transfer between two voltage domains. It operates by converting the logic levels of the input signals from one voltage domain to the corresponding levels of the other voltage domain. The output enable pin controls the tristate operation, enabling or disabling the data transfer.

Detailed Application Field Plans

The SN74LVTH543NSR is commonly used in various applications, including:

  1. Communication Systems: Facilitates data transfer between different voltage domains in communication systems, such as UART, SPI, and I2C interfaces.
  2. Industrial Automation: Enables interfacing between different voltage levels in industrial automation systems, such as PLCs and motor control circuits.
  3. Automotive Electronics: Used in automotive electronics for level shifting and bus transceiver functions, especially in CAN (Controller Area Network) and LIN (Local Interconnect Network) protocols.
  4. Consumer Electronics: Provides level shifting capabilities in consumer electronic devices, such as smartphones, tablets, and gaming consoles.

Detailed and Complete Alternative Models

  1. SN74LVTH543PW: 20-pin TSSOP package, same specifications as SN74LVTH543NSR.
  2. SN74LVC543APW: 20-pin TSSOP package, lower voltage range (1.65V to 3.6V), otherwise similar specifications.
  3. SN74HCT543N: 20-pin DIP package, higher voltage range (4.5V to 5.5V), TTL compatible inputs/outputs.

These alternative models offer similar functionality with slight variations in voltage range, package type, and compatibility.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SN74LVTH543NSR v technických řešeních

Sure! Here are 10 common questions and answers related to the application of SN74LVTH543NSR:

  1. Q: What is SN74LVTH543NSR? A: SN74LVTH543NSR is a type of integrated circuit (IC) that functions as an octal bus transceiver with 3-state outputs.

  2. Q: What is the purpose of SN74LVTH543NSR? A: The purpose of SN74LVTH543NSR is to enable bidirectional transfer of data between two buses with different voltage levels, while providing isolation when necessary.

  3. Q: What voltage levels does SN74LVTH543NSR support? A: SN74LVTH543NSR supports voltage levels ranging from 2.7V to 3.6V.

  4. Q: How many channels does SN74LVTH543NSR have? A: SN74LVTH543NSR has 8 channels, allowing for simultaneous bidirectional data transfer on each channel.

  5. Q: Can SN74LVTH543NSR handle high-speed data transmission? A: Yes, SN74LVTH543NSR is designed to support high-speed data transmission up to 200 MHz.

  6. Q: Does SN74LVTH543NSR have built-in protection features? A: Yes, SN74LVTH543NSR includes built-in ESD (electrostatic discharge) protection to safeguard against damage during handling or operation.

  7. Q: Can SN74LVTH543NSR be used in mixed-voltage systems? A: Yes, SN74LVTH543NSR is suitable for use in mixed-voltage systems where data needs to be transferred between different voltage domains.

  8. Q: How does SN74LVTH543NSR achieve 3-state outputs? A: SN74LVTH543NSR has control pins that allow the outputs to be put into a high-impedance state, effectively disconnecting them from the bus.

  9. Q: What is the maximum current that SN74LVTH543NSR can source or sink? A: SN74LVTH543NSR can source or sink up to 12 mA of current per output.

  10. Q: Are there any specific layout considerations for using SN74LVTH543NSR? A: Yes, it is recommended to follow the manufacturer's guidelines for proper PCB layout, including minimizing trace lengths and providing adequate decoupling capacitors.

Please note that these answers are general and may vary depending on the specific application and requirements. It is always advisable to refer to the datasheet and consult with technical experts when designing with SN74LVTH543NSR or any other IC.