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SN74LVC74APWRE4

SN74LVC74APWRE4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Flip-Flop
  • Characteristics: Low-Voltage, CMOS Logic, Dual D-Type Positive-Edge-Triggered Flip-Flop
  • Package: TSSOP (Thin Shrink Small Outline Package)
  • Essence: This IC is a dual D-type flip-flop with a positive-edge trigger. It operates at low voltage levels and utilizes CMOS logic.
  • Packaging/Quantity: Available in reels of 2500 units.

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 (max) at 3.3V
  • Operating Temperature Range: -40°C to 85°C

Detailed Pin Configuration

The SN74LVC74APWRE4 has a total of 14 pins:

  1. CLR (Clear) - Active LOW clear input
  2. D1 (Data Input 1) - Data input for the first flip-flop
  3. CLK (Clock) - Clock input
  4. D2 (Data Input 2) - Data input for the second flip-flop
  5. PRE (Preset) - Active LOW preset input
  6. Q1 (Output 1) - Output of the first flip-flop
  7. Q2 (Output 2) - Output of the second flip-flop
  8. GND (Ground) - Ground reference
  9. Q2 (Output 2) - Output of the second flip-flop
  10. VCC (Positive Power Supply) - Positive power supply voltage
  11. D2 (Data Input 2) - Data input for the second flip-flop
  12. CLK (Clock) - Clock input
  13. D1 (Data Input 1) - Data input for the first flip-flop
  14. CLR (Clear) - Active LOW clear input

Functional Features

  • Dual D-type positive-edge-triggered flip-flop
  • Low-voltage operation, suitable for battery-powered devices
  • CMOS logic ensures low power consumption and high noise immunity
  • Clear and preset inputs for synchronous reset functionality
  • High-speed operation with a maximum frequency of 100MHz
  • Wide operating temperature range for versatile applications

Advantages and Disadvantages

Advantages: - Low-voltage operation extends battery life in portable devices - CMOS logic provides efficient power consumption and noise immunity - Synchronous reset functionality allows for controlled initialization - High-speed operation enables rapid data processing

Disadvantages: - Limited to positive-edge triggering, may not be suitable for all applications - TSSOP package may require careful handling during assembly

Working Principles

The SN74LVC74APWRE4 is a dual D-type flip-flop that operates on positive-edge triggering. When the clock input (CLK) transitions from LOW to HIGH, the data at the D1 and D2 inputs are latched into their respective flip-flops. The outputs (Q1 and Q2) reflect the state of the inputs at the last clock transition.

The clear (CLR) and preset (PRE) inputs allow for synchronous reset functionality. When the clear input is activated (LOW), both flip-flops are reset to a known state. Conversely, when the preset input is activated (LOW), the flip-flops are set to a predefined state.

Detailed Application Field Plans

The SN74LVC74APWRE4 is commonly used in various digital systems and applications, including:

  1. Microcontrollers and microprocessors
  2. Data storage devices
  3. Communication systems
  4. Industrial automation
  5. Consumer electronics
  6. Automotive electronics

Its ability to operate at low voltages and its positive-edge triggering make it suitable for battery-powered devices and high-speed data processing applications.

Detailed and Complete Alternative Models

  1. SN74LVC74A - Similar specifications and functionality, available in different package options.
  2. MC74VHC74 - High-speed CMOS logic flip-flop with similar characteristics.
  3. CD4013B - Dual D-type flip-flop with complementary outputs, suitable for various applications.

These alternative models offer similar features and can be considered as substitutes depending on specific requirements and availability.

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Enumerați 10 întrebări și răspunsuri comune legate de aplicarea lui SN74LVC74APWRE4 în soluțiile tehnice

Sure! Here are 10 common questions and answers related to the application of SN74LVC74APWRE4:

  1. Q: What is SN74LVC74APWRE4? A: SN74LVC74APWRE4 is a dual D-type flip-flop integrated circuit (IC) that can be used in various digital applications.

  2. Q: What is the operating voltage range for SN74LVC74APWRE4? A: The operating voltage range for SN74LVC74APWRE4 is typically between 1.65V and 5.5V.

  3. Q: What is the maximum clock frequency supported by SN74LVC74APWRE4? A: SN74LVC74APWRE4 can support clock frequencies up to 100 MHz.

  4. Q: Can SN74LVC74APWRE4 be used as a counter? A: Yes, SN74LVC74APWRE4 can be used as a basic counter when cascaded with other flip-flops.

  5. Q: How many flip-flops are there in SN74LVC74APWRE4? A: SN74LVC74APWRE4 contains two independent D-type flip-flops.

  6. Q: What is the output drive strength of SN74LVC74APWRE4? A: The output drive strength of SN74LVC74APWRE4 is typically 24 mA.

  7. Q: Can SN74LVC74APWRE4 be used in battery-powered applications? A: Yes, SN74LVC74APWRE4 can be used in battery-powered applications due to its low power consumption.

  8. Q: Does SN74LVC74APWRE4 have any built-in protection features? A: Yes, SN74LVC74APWRE4 has built-in ESD (electrostatic discharge) protection to prevent damage from static electricity.

  9. Q: What is the package type for SN74LVC74APWRE4? A: SN74LVC74APWRE4 is available in a TSSOP-14 package.

  10. Q: Can SN74LVC74APWRE4 be used in high-speed data transmission applications? A: Yes, SN74LVC74APWRE4 can be used in high-speed data transmission applications due to its fast propagation delay and low skew characteristics.

Please note that these answers are general and may vary depending on specific application requirements.