Encyclopedia Entry: 74AC574TTR

Product Overview

Category

The 74AC574TTR belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronics for data storage and transfer applications.

Characteristics

• The 74AC574TTR 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 has a compact size and is easy to integrate into electronic circuits.

Package

The 74AC574TTR is available in a small-outline transistor (SOT) package.

Essence

The essence of the 74AC574TTR lies in its ability to store and transfer digital data efficiently.

Packaging/Quantity

This IC is typically sold in reels or tubes, containing a quantity of 2500 units per package.

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: 125 MHz
• Propagation Delay Time: 4.5 ns
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74AC574TTR has a total of 20 pins, which are assigned specific functions 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: 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 74AC574TTR offers the following functional features:

• Transparent latch allows data to be stored while the clock signal is active.
• High-speed operation enables efficient data transfer.
• Output enable and latch enable pins provide control over data storage and output.

Advantages and Disadvantages

Advantages

• High-speed operation allows for quick data transfer.
• Low power consumption ensures energy efficiency.
• Compact size facilitates integration into electronic circuits.
• Wide voltage range compatibility enhances versatility.

Disadvantages

• Limited number of outputs restricts its application in certain scenarios.
• Propagation delay time may affect real-time applications.

Working Principles

The 74AC574TTR operates based on the principles of digital logic. When the latch enable (LE) input is high, the data inputs (D0-D7) are transferred to the outputs (Q0-Q7) on the rising edge of the clock (CLK) signal. The transparent latch feature allows the outputs to follow the inputs as long as the LE input is high.

Detailed Application Field Plans

The 74AC574TTR finds applications in various digital systems, including but not limited to: - Microcontrollers - Data storage devices - Communication systems - Industrial automation - Signal processing circuits

Alternative Models

Several alternative models with similar functionality to the 74AC574TTR include: - 74HC574 - 74HCT574 - SN74LS574 - CD74ACT574

These alternatives can be considered based on specific requirements and availability.

In conclusion, the 74AC574TTR is a versatile integrated circuit used for data storage and transfer applications. Its high-speed operation, low power consumption, and compact size make it suitable for various digital systems. However, its limited number of outputs and propagation delay time should be taken into consideration when selecting this IC for specific applications.