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74LVCH2T45DC,125
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74LVCH2T45DC,125

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Level Shifter
  • Characteristics: Bi-directional voltage level translation between different logic levels
  • Package: VSSOP (Very Small Outline Package)
  • Essence: Dual-bit, dual-supply voltage level translator
  • Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

  • Supply Voltage Range: 1.65V to 5.5V
  • Logic Voltage Levels: 1.8V, 2.5V, 3.3V, and 5V
  • Maximum Data Rate: 400 Mbps
  • Number of Channels: 2
  • Input/Output Compatibility: CMOS, TTL, LVCMOS

Detailed Pin Configuration

The 74LVCH2T45DC,125 has a total of 12 pins: - Pin 1: OE (Output Enable) for Channel A - Pin 2: I/O A1 (Channel A Data Input/Output) - Pin 3: GND (Ground) - Pin 4: I/O B1 (Channel B Data Input/Output) - Pin 5: VCCA (Channel A Supply Voltage) - Pin 6: VCCB (Channel B Supply Voltage) - Pin 7: OE (Output Enable) for Channel B - Pin 8: I/O B2 (Channel B Data Input/Output) - Pin 9: GND (Ground) - Pin 10: I/O A2 (Channel A Data Input/Output) - Pin 11: VCCA (Channel A Supply Voltage) - Pin 12: VCCB (Channel B Supply Voltage)

Functional Features

  • Bi-directional voltage level shifting between two independent power supply rails
  • Automatic direction sensing and control
  • Low power consumption
  • High-speed data transmission
  • ESD protection on all inputs and outputs

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various logic levels - Bi-directional capability simplifies circuit design - Automatic direction sensing eliminates the need for additional control signals - ESD protection ensures robustness in harsh environments

Disadvantages: - Limited number of channels (2) - Maximum data rate may not be sufficient for high-speed applications

Working Principles

The 74LVCH2T45DC,125 is a dual-bit, dual-supply voltage level translator. It operates by shifting the logic levels of input signals from one voltage domain to another. The device automatically senses the direction of data flow and adjusts the voltage translation accordingly. This enables seamless communication between different logic levels while maintaining signal integrity.

Detailed Application Field Plans

The 74LVCH2T45DC,125 is commonly used in various applications where voltage level translation is required. Some typical application fields include: - Interfacing between microcontrollers operating at different logic levels - Communication between devices with different power supply voltages - Level shifting in mixed-voltage systems - Signal conversion in battery-powered devices

Detailed and Complete Alternative Models

  • SN74LVC2T45: Similar dual-bit, dual-supply voltage level translator from Texas Instruments
  • NC7WZT245: Bi-directional level shifter with integrated ESD protection from Fairchild Semiconductor
  • PCA9306: Dual bidirectional I2C-bus and SMBus voltage-level translator from NXP Semiconductors

(Note: The above alternative models are provided for reference and may have different specifications and pin configurations. Please refer to their respective datasheets for detailed information.)

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af 74LVCH2T45DC,125 i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of 74LVCH2T45DC,125 in technical solutions:

  1. Q: What is the function of the 74LVCH2T45DC,125? A: The 74LVCH2T45DC,125 is a dual-bit, dual-supply voltage level translator with 3-state outputs.

  2. Q: What is the operating voltage range for this device? A: The operating voltage range for the 74LVCH2T45DC,125 is from 1.65V to 5.5V.

  3. Q: Can I use this level translator to convert between different logic families? A: Yes, the 74LVCH2T45DC,125 can be used to translate signals between different logic families, such as TTL and CMOS.

  4. Q: How many channels does this device have? A: The 74LVCH2T45DC,125 has two independent bidirectional channels.

  5. Q: What is the maximum data rate supported by this level translator? A: The maximum data rate supported by the 74LVCH2T45DC,125 is 400 Mbps.

  6. Q: Can I use this device for voltage level shifting in I2C or SPI communication? A: Yes, the 74LVCH2T45DC,125 can be used for voltage level shifting in I2C or SPI communication.

  7. Q: Does this level translator have built-in ESD protection? A: Yes, the 74LVCH2T45DC,125 has built-in ESD protection on all inputs and outputs.

  8. Q: What is the typical propagation delay of this device? A: The typical propagation delay of the 74LVCH2T45DC,125 is around 3.5 ns.

  9. Q: Can I use this level translator for bidirectional communication? A: Yes, the 74LVCH2T45DC,125 supports bidirectional communication with automatic direction control.

  10. Q: Is this device available in different package options? A: Yes, the 74LVCH2T45DC,125 is available in various package options, such as TSSOP and VFBGA.

Please note that the specific details and answers may vary depending on the manufacturer's datasheet and application requirements.