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CD74AC623NSRE4
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CD74AC623NSRE4

Product Overview

  • Category: Integrated Circuit
  • Use: Data Storage and Transfer
  • Characteristics: High-speed, Low-power, 8-bit Bus Transceiver
  • Package: Surface Mount, SOIC-20
  • Essence: The CD74AC623NSRE4 is a high-performance, octal bus transceiver designed for asynchronous two-way communication between data buses. It provides bidirectional voltage level translation and can be used in various applications requiring data storage and transfer.
  • Packaging/Quantity: Available in reels of 2500 units

Specifications

  • Supply Voltage: 2V to 6V
  • Input Voltage Levels: CMOS/TTL Compatible
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay: 5ns (Max)
  • Output Drive Capability: ±24mA
  • Latch-Up Performance: 300mA (Min)

Detailed Pin Configuration

The CD74AC623NSRE4 has a total of 20 pins, which are assigned as follows:

  1. A0: Input/Output Pin
  2. A1: Input/Output Pin
  3. A2: Input/Output Pin
  4. A3: Input/Output Pin
  5. A4: Input/Output Pin
  6. A5: Input/Output Pin
  7. A6: Input/Output Pin
  8. A7: Input/Output Pin
  9. GND: Ground Pin
  10. B7: Input/Output Pin
  11. B6: Input/Output Pin
  12. B5: Input/Output Pin
  13. B4: Input/Output Pin
  14. B3: Input/Output Pin
  15. B2: Input/Output Pin
  16. B1: Input/Output Pin
  17. B0: Input/Output Pin
  18. OE*: Output Enable Pin
  19. VCC: Supply Voltage Pin
  20. DIR: Direction Control Pin

Functional Features

  • Bidirectional Data Transfer between Two Buses
  • Asynchronous Communication
  • Automatic Direction Control
  • High-Speed Operation
  • Low Power Consumption
  • CMOS/TTL Compatible Inputs

Advantages and Disadvantages

Advantages

  • High-speed data transfer capability
  • Low power consumption
  • Wide operating voltage range
  • Automatic direction control simplifies system design
  • CMOS/TTL compatibility allows easy integration with existing circuits

Disadvantages

  • Propagation delay may limit performance in certain applications
  • Limited output drive capability compared to some other transceivers
  • Not suitable for applications requiring higher data bus widths

Working Principles

The CD74AC623NSRE4 operates by automatically controlling the direction of data flow between two buses based on the state of the DIR pin. When DIR is high, data is transferred from Bus A to Bus B, and when DIR is low, data is transferred from Bus B to Bus A. The transceiver uses CMOS technology, allowing for high-speed operation and low power consumption.

Detailed Application Field Plans

The CD74AC623NSRE4 can be used in various applications that require bidirectional data transfer between two buses. Some potential application fields include:

  1. Microcontroller-based systems
  2. Data acquisition systems
  3. Industrial automation
  4. Communication equipment
  5. Automotive electronics

Detailed and Complete Alternative Models

  1. SN74ACT623: Similar octal bus transceiver with slightly different specifications.
  2. MC74AC623: Another alternative with similar functionality but different package options.
  3. 74HC623: CMOS compatible alternative with comparable features.

These alternative models provide similar functionality and can be considered as replacements for the CD74AC623NSRE4 based on specific requirements and availability.

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Énumérez 10 questions et réponses courantes liées à l'application de CD74AC623NSRE4 dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of CD74AC623NSRE4 in technical solutions:

  1. Q: What is CD74AC623NSRE4? A: CD74AC623NSRE4 is a type of integrated circuit (IC) that functions as an octal bus transceiver with 3-state outputs.

  2. Q: What is the purpose of CD74AC623NSRE4? A: The purpose of CD74AC623NSRE4 is to enable bidirectional data transfer between two buses, while providing isolation when necessary.

  3. Q: What voltage levels does CD74AC623NSRE4 support? A: CD74AC623NSRE4 supports voltage levels ranging from 2V to 6V.

  4. Q: How many bits can CD74AC623NSRE4 handle? A: CD74AC623NSRE4 can handle 8 bits of data.

  5. Q: Can CD74AC623NSRE4 be used in both parallel and serial communication systems? A: Yes, CD74AC623NSRE4 can be used in both parallel and serial communication systems, depending on the configuration.

  6. Q: What is the maximum data transfer rate supported by CD74AC623NSRE4? A: CD74AC623NSRE4 can support data transfer rates up to 100 MHz.

  7. Q: Does CD74AC623NSRE4 have built-in protection features? A: Yes, CD74AC623NSRE4 has built-in ESD (electrostatic discharge) protection features to prevent damage from static electricity.

  8. Q: Can CD74AC623NSRE4 be cascaded to increase the number of bits? A: Yes, multiple CD74AC623NSRE4 ICs can be cascaded to increase the number of bits in the data bus.

  9. Q: What is the power supply voltage range for CD74AC623NSRE4? A: CD74AC623NSRE4 operates within a power supply voltage range of 2V to 6V.

  10. Q: Are there any specific application notes or reference designs available for CD74AC623NSRE4? A: Yes, Texas Instruments provides application notes and reference designs that can help with the implementation of CD74AC623NSRE4 in various technical solutions.

Please note that these answers are general and may vary depending on the specific requirements and use cases. It's always recommended to refer to the datasheet and documentation provided by the manufacturer for accurate information.