ON Semiconductor
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74LCX821MTC
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74LCX821MTC

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Logic Gate
  • Characteristics: Low Voltage, Fast Operation
  • Package: TSSOP (Thin Shrink Small Outline Package)
  • Essence: High-performance CMOS Logic IC
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 2.0V to 3.6V
  • Input Voltage Range: -0.5V to VCC + 0.5V
  • Output Voltage Range: -0.5V to VCC + 0.5V
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay Time: 2.5ns (max) at 3.3V supply voltage
  • Input Capacitance: 4pF (typical)

Detailed Pin Configuration

The 74LCX821MTC has a total of 20 pins, numbered as follows:

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

Functional Features

  • High-speed operation: The 74LCX821MTC is designed for fast logic operations, making it suitable for applications requiring quick response times.
  • Low voltage operation: With a supply voltage range of 2.0V to 3.6V, this IC is ideal for low-power and battery-operated devices.
  • Output enable control: The OE pin allows the user to enable or disable the output, providing flexibility in system design.

Advantages and Disadvantages

Advantages: - Fast propagation delay time ensures quick signal processing. - Low voltage operation reduces power consumption. - Small package size saves board space.

Disadvantages: - Limited input voltage range may restrict compatibility with certain systems. - Higher cost compared to some alternative models.

Working Principles

The 74LCX821MTC operates based on complementary metal-oxide-semiconductor (CMOS) technology. It utilizes a combination of NMOS and PMOS transistors to achieve high-speed logic operations while consuming minimal power. The inputs are processed through various logic gates, resulting in the desired output based on the applied input signals.

Detailed Application Field Plans

The 74LCX821MTC can be used in various applications, including but not limited to: - Data communication systems - Computer peripherals - Industrial control systems - Consumer electronics - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74LCX821MTC include: - 74LVC821A: Low Voltage CMOS Logic IC with 3.3V supply voltage - SN74LVC821ADW: Dual 10-Bit Bus Interface Flip-Flop with 3.3V supply voltage - CD74HC821E: High-Speed CMOS Logic IC with 2.0V to 6.0V supply voltage range

These alternative models can be considered based on specific requirements and compatibility with the target system.

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Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af 74LCX821MTC i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of 74LCX821MTC in technical solutions:

  1. Q: What is the 74LCX821MTC? A: The 74LCX821MTC is a specific type of integrated circuit (IC) that functions as an 8-bit D-type flip-flop with 3-state outputs.

  2. Q: What are the main features of the 74LCX821MTC? A: The main features include low voltage operation, high-speed performance, 3-state outputs, and compatibility with both TTL and CMOS logic levels.

  3. Q: How can I use the 74LCX821MTC in my technical solution? A: The 74LCX821MTC can be used for various applications such as data storage, synchronization, and signal buffering in digital systems.

  4. Q: What is the operating voltage range of the 74LCX821MTC? A: The 74LCX821MTC operates within a voltage range of 2.0V to 3.6V, making it suitable for low-power applications.

  5. Q: Can the 74LCX821MTC handle high-speed signals? A: Yes, the 74LCX821MTC has a high-speed performance with typical propagation delays of only a few nanoseconds.

  6. Q: Does the 74LCX821MTC support bidirectional data flow? A: No, the 74LCX821MTC is a unidirectional device and supports data flow in one direction only.

  7. Q: Can I connect multiple 74LCX821MTC ICs together? A: Yes, you can connect multiple 74LCX821MTC ICs together to expand the number of flip-flops or create larger storage systems.

  8. Q: What is the maximum clock frequency supported by the 74LCX821MTC? A: The maximum clock frequency depends on various factors, but typically it can support clock frequencies up to several hundred megahertz.

  9. Q: Are there any specific precautions I should take when using the 74LCX821MTC? A: It is important to ensure proper power supply decoupling and avoid exceeding the maximum voltage and current ratings specified in the datasheet.

  10. Q: Where can I find more information about the 74LCX821MTC? A: You can refer to the datasheet provided by the manufacturer or visit their official website for detailed information about the 74LCX821MTC's specifications and application notes.

Please note that the answers provided here are general and may vary depending on the specific requirements and use cases.