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SN74ALS648ADWR
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SN74ALS648ADWR

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Data Bus Transceiver
  • Characteristics: High-speed, TTL-compatible, 8-bit bidirectional transceiver
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Facilitates bidirectional data transfer between two buses
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage: 4.5V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Data Rate: Up to 24 MHz
  • Number of Channels: 8
  • Input/Output Compatibility: TTL (Transistor-Transistor Logic) compatible

Detailed Pin Configuration

The SN74ALS648ADWR has a total of 20 pins. The pin configuration is as follows:

  1. OE (Output Enable) A
  2. B0 (Bus B Bit 0)
  3. B1 (Bus B Bit 1)
  4. B2 (Bus B Bit 2)
  5. B3 (Bus B Bit 3)
  6. B4 (Bus B Bit 4)
  7. B5 (Bus B Bit 5)
  8. B6 (Bus B Bit 6)
  9. B7 (Bus B Bit 7)
  10. GND (Ground)
  11. A7 (Bus A Bit 7)
  12. A6 (Bus A Bit 6)
  13. A5 (Bus A Bit 5)
  14. A4 (Bus A Bit 4)
  15. A3 (Bus A Bit 3)
  16. A2 (Bus A Bit 2)
  17. A1 (Bus A Bit 1)
  18. A0 (Bus A Bit 0)
  19. VCC (Supply Voltage)
  20. OE (Output Enable) B

Functional Features

  • Bidirectional data transfer between two buses
  • High-speed operation up to 24 MHz
  • TTL-compatible inputs and outputs
  • Output enable control for each bus
  • Non-inverting data paths

Advantages and Disadvantages

Advantages

  • High-speed data transfer capability
  • Compatibility with TTL logic levels
  • Individual output enable control for each bus
  • Non-inverting data paths ensure signal integrity

Disadvantages

  • Limited operating temperature range (-40°C to +85°C)
  • Requires a supply voltage of 4.5V to 5.5V

Working Principles

The SN74ALS648ADWR is designed to facilitate bidirectional data transfer between two buses, typically used in microprocessor systems. It operates by enabling the flow of data from one bus to another based on the state of the output enable control signals. The TTL-compatible inputs and outputs ensure compatibility with various logic devices.

Detailed Application Field Plans

The SN74ALS648ADWR can be used in a wide range of applications, including:

  1. Microprocessor-based systems
  2. Data communication systems
  3. Industrial automation
  4. Automotive electronics
  5. Embedded systems

Detailed and Complete Alternative Models

  1. SN74ALS646ADWR: 8-bit bus transceiver with inverted outputs
  2. SN74ALS649DW: 9-bit bus transceiver with open-drain outputs
  3. SN74ALS640ADWR: 8-bit bus transceiver with direction control

These alternative models offer similar functionality to the SN74ALS648ADWR but may have different pin configurations or additional features.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de SN74ALS648ADWR en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of SN74ALS648ADWR:

  1. Q: What is SN74ALS648ADWR? A: SN74ALS648ADWR is a specific model of integrated circuit (IC) commonly used in technical solutions for data bus multiplexing and demultiplexing.

  2. Q: What is the purpose of SN74ALS648ADWR? A: The purpose of SN74ALS648ADWR is to enable multiple devices to share a single data bus by multiplexing or demultiplexing the signals.

  3. Q: How many data inputs can SN74ALS648ADWR handle? A: SN74ALS648ADWR can handle up to 8 data inputs, making it suitable for applications that require multiplexing or demultiplexing of multiple signals.

  4. Q: What is the voltage range supported by SN74ALS648ADWR? A: SN74ALS648ADWR supports a voltage range of 2V to 6V, making it compatible with a wide range of digital systems.

  5. Q: Can SN74ALS648ADWR be used for bidirectional data transfer? A: No, SN74ALS648ADWR is designed for unidirectional data transfer only. For bidirectional data transfer, a different IC should be used.

  6. Q: What is the maximum operating frequency of SN74ALS648ADWR? A: The maximum operating frequency of SN74ALS648ADWR is typically around 25 MHz, but it may vary depending on the specific application.

  7. Q: Does SN74ALS648ADWR have any built-in error detection or correction features? A: No, SN74ALS648ADWR does not have any built-in error detection or correction features. It is primarily used for data multiplexing and demultiplexing.

  8. Q: Can SN74ALS648ADWR be cascaded to handle more than 8 data inputs? A: Yes, multiple SN74ALS648ADWR ICs can be cascaded together to handle more than 8 data inputs, allowing for larger-scale data bus multiplexing or demultiplexing.

  9. Q: What are the typical applications of SN74ALS648ADWR? A: SN74ALS648ADWR is commonly used in various technical solutions such as communication systems, data acquisition systems, and digital signal processing.

  10. Q: Are there any specific precautions to consider when using SN74ALS648ADWR? A: It is important to ensure proper power supply decoupling and signal integrity measures when using SN74ALS648ADWR to avoid noise or interference issues. Additionally, the datasheet should be consulted for detailed specifications and guidelines.