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SN74LVC244APWTE4
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SN74LVC244APWTE4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Buffer/Line Driver
  • Characteristics: High-speed, low-voltage, CMOS technology
  • Package: TSSOP (Thin Shrink Small Outline Package)
  • Essence: Logic Level Shifter
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 1.65V to 5.5V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Maximum Operating Frequency: 80 MHz
  • Number of Channels: 8
  • Input/Output Type: Non-Inverting
  • Propagation Delay Time: 3.7 ns (typical)
  • Output Drive Capability: ±24 mA

Detailed Pin Configuration

The SN74LVC244APWTE4 has a total of 20 pins, which are assigned as follows:

  • Pin 1: Output 1 (Y1)
  • Pin 2: Output 2 (Y2)
  • Pin 3: Output 3 (Y3)
  • Pin 4: Output 4 (Y4)
  • Pin 5: Output 5 (Y5)
  • Pin 6: Output 6 (Y6)
  • Pin 7: Output 7 (Y7)
  • Pin 8: Output 8 (Y8)
  • Pin 9: Ground (GND)
  • Pin 10: Input 1 (A1)
  • Pin 11: Input 2 (A2)
  • Pin 12: Input 3 (A3)
  • Pin 13: Input 4 (A4)
  • Pin 14: Input 5 (A5)
  • Pin 15: Input 6 (A6)
  • Pin 16: Input 7 (A7)
  • Pin 17: Input 8 (A8)
  • Pin 18: Enable (G)
  • Pin 19: Supply Voltage (VCC)
  • Pin 20: Output Enable (OE)

Functional Features

The SN74LVC244APWTE4 is a high-speed CMOS buffer/line driver IC. It is designed to operate at low voltage levels, making it suitable for use in various applications where power consumption and signal integrity are critical. The non-inverting nature of the inputs and outputs ensures compatibility with different logic families.

Advantages: - High-speed operation - Low-voltage operation - Wide supply voltage range - Non-inverting input/output configuration - Excellent noise immunity - ESD protection on all pins

Disadvantages: - Limited output drive capability compared to some other buffer ICs - Relatively higher propagation delay time

Working Principles

The SN74LVC244APWTE4 operates based on complementary metal-oxide-semiconductor (CMOS) technology. It uses a combination of NMOS and PMOS transistors to achieve high-speed switching characteristics while consuming minimal power. The inputs are buffered and level-shifted to match the desired logic levels, and the outputs can drive both high and low loads.

Detailed Application Field Plans

The SN74LVC244APWTE4 finds applications in various fields where logic level shifting and buffering are required. Some common application areas include:

  1. Microcontroller interfacing
  2. Data communication systems
  3. Signal amplification
  4. Clock distribution networks
  5. Memory address decoding
  6. Bus driving and buffering

Detailed and Complete Alternative Models

If the SN74LVC244APWTE4 is not available or does not meet specific requirements, alternative models that offer similar functionality include:

  1. SN74LVC244A: Similar specifications and pin configuration, but available in different package options.
  2. 74HC244: Compatible with TTL logic levels, but operates at higher voltage levels.
  3. SN74LVCH244A: Offers lower power consumption and improved noise immunity.

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

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av SN74LVC244APWTE4 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of SN74LVC244APWTE4:

  1. Q: What is SN74LVC244APWTE4? A: SN74LVC244APWTE4 is a non-inverting octal buffer and line driver with 3-state outputs, commonly used in digital logic applications.

  2. Q: What is the voltage supply range for SN74LVC244APWTE4? A: The voltage supply range for SN74LVC244APWTE4 is typically between 1.65V and 5.5V.

  3. Q: What is the maximum output current that SN74LVC244APWTE4 can drive? A: SN74LVC244APWTE4 can drive up to 32mA of output current per channel.

  4. Q: Can SN74LVC244APWTE4 be used as a level shifter? A: Yes, SN74LVC244APWTE4 can be used as a level shifter to convert signals between different voltage levels.

  5. Q: How many input and output channels does SN74LVC244APWTE4 have? A: SN74LVC244APWTE4 has 8 input channels and 8 output channels.

  6. Q: What is the propagation delay of SN74LVC244APWTE4? A: The propagation delay of SN74LVC244APWTE4 is typically around 4.3ns.

  7. Q: Can SN74LVC244APWTE4 be used in high-speed applications? A: Yes, SN74LVC244APWTE4 is designed for high-speed operation and can be used in applications with fast switching requirements.

  8. Q: Is SN74LVC244APWTE4 compatible with both CMOS and TTL logic levels? A: Yes, SN74LVC244APWTE4 is compatible with both CMOS and TTL logic levels.

  9. Q: Can SN74LVC244APWTE4 be used in bidirectional data transfer applications? A: Yes, SN74LVC244APWTE4 supports bidirectional data flow and can be used in applications requiring data transfer in both directions.

  10. Q: What is the package type for SN74LVC244APWTE4? A: SN74LVC244APWTE4 is available in a TSSOP-20 package.

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