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SN74LVC821ADWG4
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SN74LVC821ADWG4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Logic Gate
  • Characteristics: Low Voltage, CMOS Technology
  • Package: SOIC-20
  • Essence: 8-Bit D-Type Flip-Flop with 3-State Outputs
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 1.65V to 5.5V
  • High-Level Input Voltage: 2V to VCC + 0.5V
  • Low-Level Input Voltage: -0.5V to 0.8V
  • High-Level Output Voltage: VCC - 0.5V
  • Low-Level Output Voltage: 0.5V
  • Maximum Operating Frequency: 100MHz
  • Propagation Delay Time: 3.6ns
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SN74LVC821ADWG4 has a total of 20 pins. The pin configuration is as follows:

  1. CLR (Clear)
  2. D0 (Data Input 0)
  3. D1 (Data Input 1)
  4. D2 (Data Input 2)
  5. D3 (Data Input 3)
  6. D4 (Data Input 4)
  7. D5 (Data Input 5)
  8. D6 (Data Input 6)
  9. D7 (Data Input 7)
  10. GND (Ground)
  11. Q0 (Flip-Flop Output 0)
  12. Q1 (Flip-Flop Output 1)
  13. Q2 (Flip-Flop Output 2)
  14. Q3 (Flip-Flop Output 3)
  15. Q4 (Flip-Flop Output 4)
  16. Q5 (Flip-Flop Output 5)
  17. Q6 (Flip-Flop Output 6)
  18. Q7 (Flip-Flop Output 7)
  19. OE (Output Enable)
  20. VCC (Supply Voltage)

Functional Features

The SN74LVC821ADWG4 is an 8-bit D-type flip-flop with 3-state outputs. It features a clear input (CLR) for resetting the flip-flop, and an output enable input (OE) for controlling the output state. The device operates on low voltage and utilizes CMOS technology, making it suitable for various applications.

Advantages and Disadvantages

Advantages: - Low voltage operation allows for compatibility with a wide range of systems. - CMOS technology provides low power consumption and high noise immunity. - 3-state outputs allow for bus sharing and easy interfacing with other devices.

Disadvantages: - Limited maximum operating frequency compared to some other ICs. - Not suitable for high-speed applications requiring faster propagation delay times.

Working Principles

The SN74LVC821ADWG4 operates as an 8-bit D-type flip-flop, storing data at its inputs (D0-D7) based on the clock signal. The stored data can be accessed at the corresponding outputs (Q0-Q7). The clear input (CLR) resets the flip-flop to a known state, while the output enable input (OE) controls whether the outputs are active or in a high-impedance state.

Detailed Application Field Plans

The SN74LVC821ADWG4 can be used in various applications, including but not limited to: - Data storage and retrieval systems - Address decoding circuits - Bus interface units - Memory modules - Control systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the SN74LVC821ADWG4 include: - SN74LVC821APW - SN74LVC821ADBR - SN74LVC821ADGVR - SN74LVC821ADGVRE4

These alternative models may have slight differences in package type, temperature range, or other specifications, but they serve the same purpose as the SN74LVC821ADWG4.

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von SN74LVC821ADWG4 in technischen Lösungen auf

Sure! Here are 10 common questions and answers related to the application of SN74LVC821ADWG4:

  1. Q: What is SN74LVC821ADWG4? A: SN74LVC821ADWG4 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 typical applications of SN74LVC821ADWG4? A: SN74LVC821ADWG4 is commonly used in digital systems for data storage, synchronization, and signal routing purposes.

  3. Q: What is the operating voltage range of SN74LVC821ADWG4? A: SN74LVC821ADWG4 operates within a voltage range of 1.65V to 5.5V.

  4. Q: How many flip-flops are there in SN74LVC821ADWG4? A: SN74LVC821ADWG4 consists of 8 individual flip-flops, each capable of storing one bit of data.

  5. Q: Can SN74LVC821ADWG4 be cascaded to create larger registers? A: Yes, multiple SN74LVC821ADWG4 ICs can be cascaded together to create larger registers or shift registers.

  6. Q: What is the maximum clock frequency supported by SN74LVC821ADWG4? A: SN74LVC821ADWG4 can operate at a maximum clock frequency of 100 MHz.

  7. Q: Does SN74LVC821ADWG4 support 3-state outputs? A: Yes, SN74LVC821ADWG4 has 3-state outputs, allowing it to be used in bus-oriented systems.

  8. Q: What is the power supply current requirement for SN74LVC821ADWG4? A: The typical power supply current required by SN74LVC821ADWG4 is around 2 mA.

  9. Q: Can SN74LVC821ADWG4 tolerate overvoltage conditions? A: Yes, SN74LVC821ADWG4 has built-in protection features that allow it to tolerate overvoltage conditions up to 5.5V.

  10. Q: Is SN74LVC821ADWG4 available in different package options? A: Yes, SN74LVC821ADWG4 is available in a wide range of package options, including SOIC, TSSOP, and VQFN.

Please note that these answers are general and may vary depending on the specific datasheet and manufacturer's specifications for SN74LVC821ADWG4.