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74ALVC245D,118
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74ALVC245D,118

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Level shifting and signal buffering
  • Characteristics: High-speed, low-power, bidirectional voltage level translator
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Translates signals between different voltage levels
  • Packaging/Quantity: Tape and reel, 2500 pieces 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: 4.5ns (typical)
  • Output Drive Capability: ±24mA

Detailed Pin Configuration

The 74ALVC245D,118 IC has a total of 20 pins. The pin configuration is as follows:

___________ A1 |1 20| VCC A2 |2 19| OE# B1 |3 18| B7 B2 |4 17| B6 B3 |5 74ALVC245D,118 16| B5 B4 |6 15| B4 GND|7 14| B3 DIR|8 13| B2 A7 |9 12| B1 A6 |10 11| A7 ¯¯¯¯¯¯¯¯¯¯¯

Functional Features

  • Bidirectional voltage level translation between two independent voltage domains
  • Automatic direction control based on the DIR input pin
  • Low power consumption
  • High-speed operation
  • ESD protection on all inputs and outputs

Advantages

  • Wide supply voltage range allows compatibility with various systems
  • Fast propagation delay enables high-speed data transmission
  • Bidirectional capability simplifies signal translation between different voltage levels
  • ESD protection ensures reliability in harsh environments

Disadvantages

  • Limited output drive capability may not be suitable for driving heavy loads
  • Requires careful consideration of input and output voltage levels to prevent damage

Working Principles

The 74ALVC245D,118 is a bidirectional voltage level translator. It uses a combination of MOSFETs and logic gates to shift signals between two independent voltage domains. The direction of translation is controlled by the DIR input pin. When DIR is high, the IC translates signals from A-side to B-side, and when DIR is low, it translates signals from B-side to A-side.

Detailed Application Field Plans

The 74ALVC245D,118 is commonly used in various applications that require level shifting and signal buffering. Some typical application fields include: 1. Communication systems: Translating signals between different voltage levels in serial communication interfaces (e.g., UART, SPI, I2C). 2. Microcontroller interfacing: Enabling communication between microcontrollers operating at different voltage levels. 3. Mixed-voltage systems: Bridging the gap between different voltage domains in mixed-voltage systems, such as battery-powered devices.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74ALVC245D,118 are: - SN74LVC245A: Texas Instruments' octal bus transceiver with 3-state outputs. - MC74LVX245: ON Semiconductor's low-voltage CMOS octal bus transceiver. - CD74HCT245: Texas Instruments' high-speed CMOS octal bus transceiver.

These alternative models can be considered based on specific requirements and availability.

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10個與74ALVC245D,118在技術方案中應用相關的常見問題與解答

Sure! Here are 10 common questions and answers related to the application of 74ALVC245D,118 in technical solutions:

  1. Q: What is the function of the 74ALVC245D,118? A: The 74ALVC245D,118 is an octal bus transceiver that can be used for bidirectional level shifting between different voltage domains.

  2. Q: What is the operating voltage range of the 74ALVC245D,118? A: The 74ALVC245D,118 operates with a supply voltage range of 1.65V to 3.6V.

  3. Q: Can the 74ALVC245D,118 handle both uni-directional and bi-directional data transfer? A: Yes, the 74ALVC245D,118 supports both uni-directional and bi-directional data transfer.

  4. Q: How many data lines can the 74ALVC245D,118 handle? A: The 74ALVC245D,118 can handle 8 data lines (octal) in both directions.

  5. Q: What is the maximum data transfer rate supported by the 74ALVC245D,118? A: The 74ALVC245D,118 can support data transfer rates up to 400 Mbps.

  6. Q: Does the 74ALVC245D,118 have any built-in protection features? A: Yes, the 74ALVC245D,118 has built-in ESD protection on all inputs and outputs.

  7. Q: Can the 74ALVC245D,118 be used in mixed-voltage systems? A: Yes, the 74ALVC245D,118 is suitable for use in mixed-voltage systems as it provides bidirectional level shifting.

  8. Q: What is the power supply current consumption of the 74ALVC245D,118? A: The power supply current consumption of the 74ALVC245D,118 varies depending on the operating conditions but typically ranges from a few microamps to a few milliamps.

  9. Q: Can the 74ALVC245D,118 be used in high-speed applications? A: Yes, the 74ALVC245D,118 is designed for high-speed operation and can be used in various high-speed applications.

  10. Q: Are there any specific layout considerations for using the 74ALVC245D,118? A: Yes, it is recommended to follow the manufacturer's guidelines for PCB layout, including proper decoupling capacitors placement and minimizing trace lengths to reduce noise and signal integrity issues.

Please note that these answers are general and may vary depending on the specific application and requirements. It is always recommended to refer to the datasheet and consult with the manufacturer for detailed information and application-specific questions.