Encyclopedia Entry: 74ACT74TTR

Product Overview

Category

The 74ACT74TTR belongs to the category of integrated circuits (ICs) and specifically falls under the family of flip-flops.

Use

This IC is commonly used in digital electronics for storing and manipulating binary data. It serves as a dual D-type positive-edge-triggered flip-flop.

Characteristics

• Dual D-type flip-flop with clear functionality
• Positive-edge-triggered operation
• High-speed performance
• Wide operating voltage range
• Low power consumption

Package

The 74ACT74TTR is available in a small-outline transistor (SOT) package, which ensures compactness and ease of integration into electronic circuits.

Essence

The essence of the 74ACT74TTR lies in its ability to store and synchronize digital signals, making it an essential component in various digital systems.

Packaging/Quantity

This IC is typically packaged in reels or tubes, containing a specific quantity per package. The exact packaging and quantity may vary depending on the manufacturer and supplier.

Specifications

• Supply Voltage Range: 4.5V to 5.5V
• High-Level Input Voltage: 2.0V (min), 3.15V (max)
• Low-Level Input Voltage: 0.8V (min), 1.35V (max)
• High-Level Output Voltage: 2.4V (min), VCC (max)
• Low-Level Output Voltage: GND (min), 0.4V (max)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The 74ACT74TTR has a total of 14 pins, each serving a specific function:

1. Clear (CLR) - Clears the flip-flop outputs when active.
2. Data (D) - Input pin for data to be stored.
3. Clock (CLK) - Positive-edge-triggered clock input.
4. Set (SET) - Sets the flip-flop outputs when active.
5. Q1 - Output of the first flip-flop.
6. Q1' - Complementary output of the first flip-flop.
7. Ground (GND) - Reference ground for the IC.
8. Q2' - Complementary output of the second flip-flop.
9. Q2 - Output of the second flip-flop.
10. Set (SET) - Sets the flip-flop outputs when active.
11. Clock (CLK) - Positive-edge-triggered clock input.
12. Data (D) - Input pin for data to be stored.
13. Clear (CLR) - Clears the flip-flop outputs when active.
14. VCC - Supply voltage input.

Functional Features

The 74ACT74TTR offers the following functional features:

• Dual flip-flop design allows independent storage and manipulation of two separate data inputs.
• Positive-edge-triggered operation ensures synchronized data capture at the rising edge of the clock signal.
• Clear and set functionality enables controlled initialization of the flip-flop outputs.
• High-speed performance facilitates efficient data processing in time-critical applications.
• Wide operating voltage range allows compatibility with various digital systems.
• Low power consumption makes it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

• High-speed operation enables rapid data processing.
• Compact SOT package allows for space-efficient integration.
• Wide operating voltage range enhances versatility.
• Low power consumption prolongs battery life in portable applications.

Disadvantages

• Limited storage capacity compared to more complex memory devices.
• Requires external clock signal for proper operation.
• Sensitivity to noise and signal integrity issues may affect performance.

Working Principles

The 74ACT74TTR operates based on the principles of flip-flops. It utilizes positive-edge-triggered clock inputs to capture and store data at the rising edge of the clock signal. The stored data can be accessed through the output pins, which provide both the direct and complementary representations of the stored values. The clear and set inputs allow for controlled initialization of the flip-flop outputs, ensuring predictable behavior in various scenarios.

Detailed Application Field Plans

The 74ACT74TTR finds applications in a wide range of digital systems, including but not limited to:

1. Sequential logic circuits
2. Data storage and retrieval systems
3. Digital communication systems
4. Microcontrollers and microprocessors
5. Timing and synchronization modules

Its ability to store and synchronize binary data makes it invaluable in these fields, enabling efficient data processing and control.

Detailed and Complete Alternative Models

While the 74ACT74TTR serves as a reliable dual D-type flip-flop, there are alternative models available that offer similar functionality. Some notable alternatives include:

1. 74HC74: A CMOS-based dual D-type flip-flop with comparable performance characteristics