Encyclopedia Entry: 74ACQ574SC

Product Overview

Category

The 74ACQ574SC belongs to the category of integrated circuits (ICs) and specifically falls under the family of flip-flops.

Use

This product is commonly used in digital electronic systems for storing and transferring data. It is primarily employed in applications that require sequential logic operations, such as memory units, registers, and counters.

Characteristics

• The 74ACQ574SC is a high-speed octal D-type flip-flop with a transparent latch.
• It operates on a wide voltage range, typically between 2V and 6V.
• This IC offers low power consumption and high noise immunity.
• It features a compact package size, making it suitable for space-constrained designs.

Package and Quantity

The 74ACQ574SC is available in a small outline integrated circuit (SOIC) package. Each package contains one unit of the IC.

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V to VCC
• Low-Level Input Voltage: GND to 0.8V
• High-Level Output Voltage: VCC - 0.5V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 100 MHz

Detailed Pin Configuration

The 74ACQ574SC has a total of 20 pins, each serving a specific function. Here is a detailed pin configuration:

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: Latch Enable (LE)
12. Pin 12: Ground (GND)
13. Pin 13: Q0 Output
14. Pin 14: Q1 Output
15. Pin 15: Q2 Output
16. Pin 16: Q3 Output
17. Pin 17: Q4 Output
18. Pin 18: Q5 Output
19. Pin 19: Q6 Output
20. Pin 20: Q7 Output

Functional Features

The 74ACQ574SC offers the following functional features:

• Transparent latch design allows data to be stored and transferred while the clock signal is active.
• High-speed operation enables efficient data processing in time-critical applications.
• Octal configuration provides eight independent flip-flops within a single IC, allowing for compact circuit designs.
• Output enable and latch enable pins offer control over data storage and output operations.

Advantages and Disadvantages

Advantages

• High-speed operation facilitates rapid data transfer and processing.
• Low power consumption contributes to energy-efficient designs.
• Wide voltage range compatibility enhances versatility in various electronic systems.
• Compact package size enables space-saving integration.

Disadvantages

• Limited maximum operating frequency compared to some other flip-flop ICs.
• May not be suitable for applications requiring extremely high-speed data processing.

Working Principles

The 74ACQ574SC operates based on the principles of sequential logic. When the latch enable (LE) input is high, the flip-flops become transparent, allowing the data inputs to pass through to the outputs. The clock input (CLK) controls the timing of data transfer. On the rising edge of the clock signal, the data inputs are latched and stored in the flip-flops. The output enable (OE) pin enables or disables the outputs.

Detailed Application Field Plans

The 74ACQ574SC finds applications in various digital electronic systems, including but not limited to:

1. Memory Units: Used for storing and retrieving data in computer memory modules.
2. Registers: Employed for temporary storage of data during processing operations.
3. Counters: Utilized for counting events or generating timing signals in electronic circuits.
4. Data Communication Systems: Facilitates data transfer between different components or devices.
5. Control Systems: Enables sequential logic operations in control units.

Alternative Models

For similar functionality and application requirements, alternative models to the 74ACQ574SC include:

1. 74HC574: A high-speed CMOS octal D-type flip-flop with a latch.
2. 74LS574: A low-power Schottky TTL octal D-type flip-flop with a transparent latch.
3. CD4013: A dual D-type flip-flop IC with a wide voltage range