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SN74AHC74DRE4
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SN74AHC74DRE4

Product Overview

  • Category: Integrated Circuit
  • Use: Flip-Flop
  • Characteristics: High-Speed, Low-Power, Dual D-Type Positive-Edge-Triggered Flip-Flop
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: This integrated circuit is designed to store and transfer digital information in electronic systems.
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 2 V to 5.5 V
  • High-Speed Operation: 20 ns maximum propagation delay
  • Low Power Consumption: ICC = 4 µA maximum
  • Operating Temperature Range: -40°C to +85°C
  • Output Drive Capability: ±8 mA at 5 V
  • Input Voltage Levels: VIL = 0.8 V, VIH = 2 V
  • Pin Count: 14

Detailed Pin Configuration

  1. CLR (Clear) - Active LOW input for clearing the flip-flop
  2. D (Data) - Data input for the flip-flop
  3. CLK (Clock) - Clock input for triggering the flip-flop
  4. Q (Output) - Complementary output of the flip-flop
  5. Q̅ (Output) - Non-complementary output of the flip-flop
  6. GND (Ground) - Ground reference for the IC
  7. Q̅ (Output) - Non-complementary output of the flip-flop
  8. Q (Output) - Complementary output of the flip-flop
  9. VCC (Supply Voltage) - Positive supply voltage for the IC
  10. D (Data) - Data input for the flip-flop
  11. CLR (Clear) - Active LOW input for clearing the flip-flop
  12. CLK (Clock) - Clock input for triggering the flip-flop
  13. GND (Ground) - Ground reference for the IC
  14. VCC (Supply Voltage) - Positive supply voltage for the IC

Functional Features

  • Dual D-Type Positive-Edge-Triggered Flip-Flop: The SN74AHC74DRE4 consists of two independent D-type flip-flops with a common clock input and individual data inputs.
  • High-Speed Operation: With a maximum propagation delay of 20 ns, this flip-flop allows for efficient data transfer in high-speed digital systems.
  • Low Power Consumption: The IC has a low quiescent current of 4 µA, making it suitable for battery-powered devices and energy-efficient applications.

Advantages and Disadvantages

Advantages: - High-speed operation enables quick data processing. - Low power consumption prolongs battery life in portable devices. - Dual flip-flop configuration provides flexibility in circuit design.

Disadvantages: - Limited output drive capability may restrict use in certain applications requiring higher current levels. - The SOIC package may not be suitable for space-constrained designs.

Working Principles

The SN74AHC74DRE4 operates based on positive-edge-triggered flip-flop functionality. When the clock input (CLK) transitions from LOW to HIGH, the data input (D) is captured and stored in the flip-flop. The complementary (Q) and non-complementary (Q̅) outputs reflect the stored data. The clear input (CLR) can be used to reset the flip-flop to a known state.

Detailed Application Field Plans

The SN74AHC74DRE4 finds application in various digital systems where reliable storage and transfer of digital information are required. Some potential application fields include:

  1. Communication Systems: Used in data transmission modules, routers, and network switches.
  2. Consumer Electronics: Integrated into smartphones, tablets, and gaming consoles for data processing and control.
  3. Automotive Electronics: Employed in vehicle control units, infotainment systems, and driver assistance modules.
  4. Industrial Automation: Utilized in programmable logic controllers (PLCs), motor control circuits, and sensor interfaces.

Detailed and Complete Alternative Models

  1. SN74AHC74: Similar to SN74AHC74DRE4 but available in a different package (PDIP).
  2. MC74HC74: Equivalent dual flip-flop IC from a different manufacturer (Motorola).

These alternative models offer similar functionality and can be used as substitutes depending on specific design requirements.

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Enumerați 10 întrebări și răspunsuri comune legate de aplicarea lui SN74AHC74DRE4 în soluțiile tehnice

Sure! Here are 10 common questions and answers related to the application of SN74AHC74DRE4 in technical solutions:

  1. Q: What is the SN74AHC74DRE4? A: The SN74AHC74DRE4 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 voltage supply range for SN74AHC74DRE4? A: The voltage supply range for SN74AHC74DRE4 is typically between 2 V and 5.5 V.

  3. Q: What is the maximum operating frequency of SN74AHC74DRE4? A: The maximum operating frequency of SN74AHC74DRE4 is typically around 100 MHz.

  4. Q: Can SN74AHC74DRE4 be used as a clock divider? A: Yes, SN74AHC74DRE4 can be used as a clock divider by connecting the output of one flip-flop to the clock input of another.

  5. Q: How many flip-flops are there in SN74AHC74DRE4? A: SN74AHC74DRE4 contains two independent flip-flops in a single package.

  6. Q: What is the setup time requirement for the data input of SN74AHC74DRE4? A: The setup time requirement for the data input of SN74AHC74DRE4 is typically around 5 ns.

  7. Q: Can SN74AHC74DRE4 be used in high-speed applications? A: Yes, SN74AHC74DRE4 is designed for high-speed operation and can be used in various high-speed applications.

  8. Q: What is the output drive capability of SN74AHC74DRE4? A: The output drive capability of SN74AHC74DRE4 is typically around 8 mA.

  9. Q: Can SN74AHC74DRE4 be used in battery-powered devices? A: Yes, SN74AHC74DRE4 has a low power consumption and can be used in battery-powered devices.

  10. Q: Are there any specific application notes or reference designs available for SN74AHC74DRE4? A: Yes, Texas Instruments provides application notes and reference designs that can help in implementing SN74AHC74DRE4 in various technical solutions.