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SN74AHCT74DRE4

SN74AHCT74DRE4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Flip-Flop
  • Characteristics: High-speed, low-power, dual D-type positive-edge-triggered flip-flop
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Reliable and efficient digital logic component
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 4.5V 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: 10ns
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SN74AHCT74DRE4 has a total of 14 pins, which are numbered as follows:

  1. CLR (Clear) - Active LOW clear input
  2. D (Data) - Data input
  3. CLK (Clock) - Clock input
  4. PR (Preset) - Active LOW preset input
  5. Q (Output) - Complementary output
  6. Q̅ (Output) - True output
  7. GND (Ground) - Ground reference
  8. Q̅ (Output) - True output
  9. Q (Output) - Complementary output
  10. VCC (Supply Voltage) - Positive power supply
  11. D (Data) - Data input
  12. CLK (Clock) - Clock input
  13. PR (Preset) - Active LOW preset input
  14. CLR (Clear) - Active LOW clear input

Functional Features

  • Dual D-type positive-edge-triggered flip-flop
  • High-speed operation with low power consumption
  • Clear and preset inputs for synchronous reset
  • Complementary outputs for easy integration into digital systems
  • Wide operating voltage range for versatility
  • Suitable for various applications requiring reliable flip-flop functionality

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data processing - Low-power consumption reduces energy requirements - Clear and preset inputs provide flexibility in system design - Complementary outputs simplify integration into digital circuits - Wide operating voltage range enables compatibility with different power supplies

Disadvantages: - Limited to positive-edge-triggered functionality - Not suitable for applications requiring negative-edge triggering - May not be ideal for high-frequency applications exceeding 100MHz

Working Principles

The SN74AHCT74DRE4 is a dual D-type positive-edge-triggered flip-flop. It operates by capturing the data input (D) at the rising edge of the clock input (CLK). The captured data is then stored in the flip-flop until the next rising edge of the clock signal. The flip-flop can be cleared or preset using the CLR and PR inputs, respectively. The complementary outputs (Q and Q̅) provide the inverted and non-inverted versions of the stored data.

Detailed Application Field Plans

The SN74AHCT74DRE4 is widely used in various digital systems and applications, including but not limited to:

  1. Microprocessors and microcontrollers
  2. Data storage devices
  3. Communication systems
  4. Signal processing circuits
  5. Control systems
  6. Timing and synchronization circuits
  7. Logic gates and registers
  8. Industrial automation equipment
  9. Automotive electronics
  10. Consumer electronics

Detailed and Complete Alternative Models

  1. SN74AHCT74DR - Similar specifications and features, but without the "E4" suffix
  2. SN74AHCT74PW - TSSOP (Thin Shrink Small Outline Package) version of the flip-flop
  3. SN74AHCT74N - DIP (Dual In-line Package) version of the flip-flop
  4. SN74AHCT74RGYR - QFN (Quad Flat No-Lead) version of the flip-flop

These alternative models offer similar functionality and can be used as substitutes for the SN74AHCT74DRE4 depending on specific requirements and package preferences.

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Énumérez 10 questions et réponses courantes liées à l'application de SN74AHCT74DRE4 dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of SN74AHCT74DRE4 in technical solutions:

  1. Q: What is SN74AHCT74DRE4? A: SN74AHCT74DRE4 is a dual positive-edge-triggered D-type flip-flop integrated circuit (IC) that can store one bit of data.

  2. Q: What is the operating voltage range for SN74AHCT74DRE4? A: The operating voltage range for SN74AHCT74DRE4 is from 2 V to 5.5 V.

  3. Q: What is the maximum clock frequency supported by SN74AHCT74DRE4? A: SN74AHCT74DRE4 can support clock frequencies up to 24 MHz.

  4. Q: Can SN74AHCT74DRE4 be used in both digital and analog circuits? A: No, SN74AHCT74DRE4 is specifically designed for digital circuits and is not suitable for analog applications.

  5. Q: How many flip-flops are there in SN74AHCT74DRE4? A: SN74AHCT74DRE4 contains two independent flip-flops.

  6. Q: What is the typical propagation delay of SN74AHCT74DRE4? A: The typical propagation delay of SN74AHCT74DRE4 is around 9 ns.

  7. Q: Can SN74AHCT74DRE4 operate in a wide temperature range? A: Yes, SN74AHCT74DRE4 has an extended temperature range and can operate from -40°C to 85°C.

  8. Q: Does SN74AHCT74DRE4 have any built-in protection features? A: Yes, SN74AHCT74DRE4 has built-in ESD protection to prevent damage from electrostatic discharge.

  9. Q: What is the package type for SN74AHCT74DRE4? A: SN74AHCT74DRE4 is available in a small-outline integrated circuit (SOIC) package.

  10. Q: Can SN74AHCT74DRE4 be used in battery-powered applications? A: Yes, SN74AHCT74DRE4 has a low power consumption and can be used in battery-powered devices.

Please note that these answers are general and may vary depending on specific application requirements. It's always recommended to refer to the datasheet and consult with technical experts for accurate information.