Encyclopedia Entry: 74AC374SC

Product Overview

Category

The 74AC374SC belongs to the category of integrated circuits (ICs), specifically flip-flops.

Use

This IC is commonly used in digital electronics for storing and transferring data. It serves as a latch or register, allowing for sequential data storage and retrieval.

Characteristics

• The 74AC374SC operates on a supply voltage range of 2V to 6V.
• It has a high-speed operation, making it suitable for applications requiring quick data transfer.
• This IC offers low power consumption, making it energy-efficient.
• It has a wide operating temperature range, typically from -40°C to 85°C.
• The 74AC374SC is known for its reliable performance and durability.

Package

The 74AC374SC is available in a small outline integrated circuit (SOIC) package. This package type provides ease of handling and compatibility with standard PCB designs.

Essence

The essence of the 74AC374SC lies in its ability to store and transfer digital data reliably and efficiently. It simplifies complex digital systems by providing a compact and versatile solution for data storage.

Packaging/Quantity

The 74AC374SC is commonly sold in reels or tubes, containing multiple units per package. The exact quantity may vary depending on the supplier, but it is typically available in quantities of 25 or more.

Specifications

• Supply Voltage Range: 2V to 6V
• Operating Temperature Range: -40°C to 85°C
• Logic Family: Advanced CMOS (AC)
• Number of Flip-Flops: 8
• Output Type: Tri-State
• Maximum Clock Frequency: 100MHz
• Propagation Delay: 5ns (typical)

Detailed Pin Configuration

The 74AC374SC has a total of 20 pins, each serving a specific function. The pin configuration is as follows:

1. Pin 1: Data Input (D0)
2. Pin 2: Data Input (D1)
3. Pin 3: Data Input (D2)
4. Pin 4: Data Input (D3)
5. Pin 5: Data Input (D4)
6. Pin 6: Data Input (D5)
7. Pin 7: Data Input (D6)
8. Pin 8: Data Input (D7)
9. Pin 9: Clock Input (CLK)
10. Pin 10: Output Enable (OE)
11. Pin 11: Master Reset (MR)
12. Pin 12: Q0 Output
13. Pin 13: Q1 Output
14. Pin 14: Q2 Output
15. Pin 15: Q3 Output
16. Pin 16: Q4 Output
17. Pin 17: Q5 Output
18. Pin 18: Q6 Output
19. Pin 19: Q7 Output
20. Pin 20: Ground (GND)

Functional Features

The 74AC374SC offers the following functional features:

• Data Storage: It can store data on its eight flip-flops, allowing for sequential storage and retrieval.
• Data Transfer: The IC enables the transfer of stored data to the output pins upon receiving a clock signal.
• Tri-State Outputs: The outputs can be put into a high-impedance state using the Output Enable (OE) pin, facilitating bus sharing in multi-device systems.
• Master Reset: The Master Reset (MR) pin allows for clearing all flip-flops simultaneously, resetting the IC to its initial state.

Advantages and Disadvantages

Advantages

• High-speed operation enables quick data transfer.
• Low power consumption makes it energy-efficient.
• Reliable performance and durability ensure long-term usability.
• Tri-State outputs facilitate bus sharing in complex systems.
• Compact SOIC package allows for easy integration into PCB designs.

Disadvantages

• Limited number of flip-flops (8) may not be sufficient for certain applications requiring larger data storage capacity.
• The IC's operating temperature range (-40°C to 85°C) may not be suitable for extreme environments.

Working Principles

The 74AC374SC operates based on the principles of sequential logic. When a clock signal is received, the data present at the input pins (D0-D7) is latched onto the flip-flops. Upon receiving another clock signal, the stored data is transferred to the output pins (Q0-Q7). The Output Enable (OE) pin controls the tri-state outputs, allowing for bus sharing. The Master Reset (MR) pin resets all flip-flops simultaneously, clearing the stored data.

Detailed Application Field Plans

The 74AC374SC finds application in various digital systems where data storage and transfer are essential. Some specific application fields include: