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CD74ACT646M
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CD74ACT646M

Product Overview

Category

CD74ACT646M belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for signal conversion and level shifting in digital systems.

Characteristics

  • High-speed operation
  • Wide operating voltage range
  • Low power consumption
  • Compatibility with TTL inputs
  • Schmitt-trigger action on all inputs

Package

The CD74ACT646M is available in a standard 20-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of CD74ACT646M lies in its ability to efficiently convert and shift digital signals, ensuring compatibility between different logic families.

Packaging/Quantity

The CD74ACT646M is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

  • Supply Voltage: 2V to 6V
  • Input Voltage: 0V to VCC
  • Output Voltage: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay Time: 5.5ns (typical)
  • Output Current: ±24mA

Detailed Pin Configuration

  1. A1
  2. B1
  3. GND
  4. B2
  5. A2
  6. OE#
  7. DIR
  8. CLK
  9. D0
  10. D1
  11. D2
  12. D3
  13. D4
  14. D5
  15. D6
  16. D7
  17. VCC
  18. Q7
  19. Q6
  20. Q5

Functional Features

  • Bidirectional data transfer
  • Non-inverting outputs
  • Output enable control
  • Direction control

Advantages and Disadvantages

Advantages

  • High-speed operation allows for efficient signal conversion
  • Wide operating voltage range provides flexibility in various applications
  • Low power consumption contributes to energy efficiency
  • Compatibility with TTL inputs simplifies integration into existing systems
  • Schmitt-trigger action on all inputs ensures reliable signal processing

Disadvantages

  • Limited number of input/output channels (8-bit)

Working Principles

The CD74ACT646M is a bidirectional octal bus transceiver that facilitates the conversion and level shifting of digital signals. It operates by controlling the direction of data flow using the DIR pin. When DIR is high, data is transferred from the A bus to the B bus. Conversely, when DIR is low, data is transferred from the B bus to the A bus. The OE# pin enables or disables the outputs, allowing for tri-state operation.

Detailed Application Field Plans

The CD74ACT646M finds application in various digital systems where signal conversion and level shifting are required. Some specific application fields include:

  1. Microcontroller interfacing
  2. Data communication systems
  3. Industrial automation
  4. Automotive electronics
  5. Networking equipment

Detailed and Complete Alternative Models

  1. SN74ACT646: Similar functionality, different package (TSSOP)
  2. 74HC646: Lower power consumption, compatible with CMOS inputs
  3. CD74HCT646: Higher output current, compatible with CMOS inputs

(Note: This list is not exhaustive and other alternative models may exist.)

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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng CD74ACT646M trong giải pháp kỹ thuật

Sure! Here are 10 common questions and answers related to the application of CD74ACT646M in technical solutions:

  1. Q: What is CD74ACT646M? A: CD74ACT646M is a type of octal bus transceiver with 3-state outputs, commonly used for data transfer between different voltage levels or systems.

  2. Q: What is the operating voltage range of CD74ACT646M? A: CD74ACT646M operates within a voltage range of 4.5V to 5.5V.

  3. Q: How many bits can CD74ACT646M handle? A: CD74ACT646M is an octal (8-bit) bus transceiver, meaning it can handle 8 bits of data simultaneously.

  4. Q: Can CD74ACT646M be used for bidirectional data transfer? A: Yes, CD74ACT646M supports bidirectional data transfer, allowing data to flow in both directions on the bus.

  5. Q: What is the maximum data transfer rate supported by CD74ACT646M? A: CD74ACT646M has a maximum data transfer rate of 24 MHz, making it suitable for high-speed applications.

  6. Q: Does CD74ACT646M have built-in protection features? A: Yes, CD74ACT646M includes built-in ESD protection, which helps safeguard against electrostatic discharge events.

  7. Q: Can CD74ACT646M be used in mixed-voltage level systems? A: Yes, CD74ACT646M is designed to handle mixed-voltage level systems, allowing for seamless data transfer between different voltage domains.

  8. Q: What is the power supply current requirement for CD74ACT646M? A: The typical power supply current requirement for CD74ACT646M is around 20 mA.

  9. Q: Does CD74ACT646M support 3-state outputs? A: Yes, CD74ACT646M features 3-state outputs, which means it can effectively disconnect from the bus when not actively driving data.

  10. Q: What package options are available for CD74ACT646M? A: CD74ACT646M is available in various package options, including SOIC, TSSOP, and PDIP, providing flexibility for different PCB layouts and assembly methods.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's specifications for CD74ACT646M.