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Encyclopedia Entry: 74AC74SC
Product Overview
Category
The 74AC74SC belongs to the category of integrated circuits (ICs).
Use
This IC is commonly used in digital electronics for various applications, including data storage and signal processing.
Characteristics
- The 74AC74SC is a dual D-type flip-flop IC.
- It operates on a supply voltage range of 2V to 6V.
- It has a high-speed operation capability, making it suitable for time-critical applications.
- The IC offers low power consumption, making it energy-efficient.
- It exhibits excellent noise immunity, ensuring reliable performance even in noisy environments.
Package
The 74AC74SC is available in a small outline package (SOIC) format. This package provides ease of handling and compatibility with standard PCB designs.
Essence
The essence of the 74AC74SC lies in its ability to store and manipulate digital information effectively, providing a crucial building block for various electronic systems.
Packaging/Quantity
The 74AC74SC is typically sold in reels or tubes, containing multiple units per package. The exact quantity may vary depending on the supplier.
Specifications
- Supply Voltage Range: 2V to 6V
- Operating Temperature Range: -40°C to +85°C
- Input Voltage High (VIH): 2V to VCC
- Input Voltage Low (VIL): GND to 0.8V
- Output Voltage High (VOH): VCC - 0.5V
- Output Voltage Low (VOL): 0.4V
- Maximum Clock Frequency: 100 MHz
Detailed Pin Configuration
The 74AC74SC features a total of 14 pins, each serving a specific function:
- CLR (Clear) - Clear input pin
- D1 (Data 1) - Data input for flip-flop 1
- CLK1 (Clock 1) - Clock input for flip-flop 1
- PR (Preset) - Preset input pin
- Q1 (Output 1) - Output of flip-flop 1
- Q̅1 (Inverted Output 1) - Inverted output of flip-flop 1
- GND (Ground) - Ground reference pin
- Q̅0 (Inverted Output 0) - Inverted output of flip-flop 0
- Q0 (Output 0) - Output of flip-flop 0
- CLR (Clear) - Clear input pin
- D0 (Data 0) - Data input for flip-flop 0
- CLK0 (Clock 0) - Clock input for flip-flop 0
- VCC (Supply Voltage) - Positive supply voltage pin
- PR (Preset) - Preset input pin
Functional Features
The 74AC74SC offers the following functional features:
- Dual D-type flip-flops with individual clear and preset inputs.
- Asynchronous clear and preset inputs allow for easy initialization of the flip-flops.
- High-speed operation enables efficient data storage and retrieval.
- The IC exhibits excellent noise immunity, ensuring reliable performance in noisy environments.
- Low power consumption makes it suitable for battery-powered applications.
Advantages and Disadvantages
Advantages
- High-speed operation allows for time-critical applications.
- Excellent noise immunity ensures reliable performance.
- Low power consumption makes it energy-efficient.
- Compact package size facilitates easy integration into electronic systems.
Disadvantages
- Limited number of flip-flops per IC (dual flip-flops in this case).
- Requires external components for complete system implementation.
Working Principles
The 74AC74SC operates based on the principles of sequential logic. It utilizes flip-flops to store and manipulate digital information. The clock input triggers the flip-flops, allowing data to be stored or transferred between them. The clear and preset inputs provide additional control over the state of the flip-flops, enabling initialization or forced output states.
Detailed Application Field Plans
The 74AC74SC finds applications in various fields, including:
- Digital communication systems
- Microcontrollers and microprocessors
- Data storage devices
- Signal processing circuits
- Industrial automation systems
Detailed and Complete Alternative Models
There are several alternative models available that offer similar functionality to the 74AC74SC. Some notable alternatives include:
- 74HC74: Similar dual D-type flip-flop IC with a wider supply voltage range.
- CD4013: Dual D-type flip-flop IC with complementary outputs.
- SN74LS74: Dual D-type flip-flop IC with TTL-compatible inputs and outputs.
These alternative models can be considered based on specific application requirements and
Liste 10 perguntas e respostas comuns relacionadas à aplicação de 74AC74SC em soluções técnicas
Sure! Here are 10 common questions and answers related to the application of 74AC74SC in technical solutions:
Q: What is the 74AC74SC? A: The 74AC74SC is a dual D-type flip-flop integrated circuit that can store one bit of data.
Q: What is the operating voltage range for the 74AC74SC? A: The 74AC74SC operates within a voltage range of 2V to 6V.
Q: What is the maximum clock frequency supported by the 74AC74SC? A: The 74AC74SC can support clock frequencies up to 100 MHz.
Q: How many flip-flops are there in the 74AC74SC? A: The 74AC74SC contains two independent D-type flip-flops.
Q: Can the 74AC74SC be used for edge-triggered or level-triggered applications? A: Yes, the 74AC74SC can be used for both edge-triggered and level-triggered applications.
Q: What is the setup time requirement for the data input of the 74AC74SC? A: The setup time requirement for the data input is typically 15 ns.
Q: Does the 74AC74SC have asynchronous clear inputs? A: No, the 74AC74SC does not have asynchronous clear inputs.
Q: What is the typical propagation delay of the 74AC74SC? A: The typical propagation delay of the 74AC74SC is around 6 ns.
Q: Can the 74AC74SC be cascaded to create larger storage registers? A: Yes, multiple 74AC74SC ICs can be cascaded to create larger storage registers.
Q: What are some common applications of the 74AC74SC? A: The 74AC74SC is commonly used in digital systems for data storage, synchronization, and sequential logic circuits.
Please note that these answers are general and may vary depending on specific datasheet specifications and application requirements.