Encyclopedia Entry: 74ACT74SJX

Product Overview

Category

The 74ACT74SJX belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronic systems for various applications such as data storage, signal processing, and logic operations.

Characteristics

• The 74ACT74SJX is a dual positive-edge-triggered D-type flip-flop.
• It operates on a wide voltage range, typically between 2V and 6V.
• This IC offers high-speed performance with low power consumption.
• It has a compact package size, making it suitable for space-constrained designs.

Package and Quantity

The 74ACT74SJX is available in a small outline integrated circuit (SOIC) package. Each package contains one 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

Pin Configuration

The 74ACT74SJX has a total of 14 pins, which are assigned specific functions as follows:

1. CLR (Clear)
2. D (Data input)
3. CLK (Clock input)
4. Q (Flip-flop output)
5. Q̅ (Complementary output)
6. GND (Ground)
7. Q̅ (Complementary output)
8. Q (Flip-flop output)
9. CLK (Clock input)
10. D (Data input)
11. CLR (Clear)
12. VCC (Supply voltage)
13. NC (No connection)
14. GND (Ground)

Functional Features

• Positive-edge-triggered D-type flip-flop: The 74ACT74SJX captures and stores the input data (D) at the rising edge of the clock signal (CLK).
• Clear Function (CLR): The CLR pin allows resetting the flip-flop to a known state.
• Complementary Outputs (Q and Q̅): The IC provides both the normal output (Q) and its complement (Q̅).

Advantages

• High-speed operation: The 74ACT74SJX offers fast switching times, making it suitable for high-frequency applications.
• Wide voltage range: It can operate within a broad supply voltage range, providing flexibility in various electronic systems.
• Low power consumption: This IC consumes minimal power, contributing to energy-efficient designs.

Disadvantages

• Limited functionality: The 74ACT74SJX is specifically designed as a dual positive-edge-triggered D-type flip-flop and may not be suitable for complex logic operations.
• Single package option: It is only available in the SOIC package, limiting options for different form factors.

Working Principles

The 74ACT74SJX operates based on the principles of sequential logic. When the clock signal transitions from low to high (rising edge), the input data (D) is captured and stored in the flip-flop. The stored data is then available at the outputs (Q and Q̅) until the next clock cycle.

Application Field Plans

The 74ACT74SJX finds application in various digital electronic systems, including: 1. Data storage systems 2. Signal processing circuits 3. Microcontrollers and microprocessors 4. Communication devices 5. Timing and synchronization circuits

Alternative Models

For similar functionality, alternative models to the 74ACT74SJX include: - SN74LS74A - CD4013BE - MC74HC74AN - 74HCT74

These alternative models offer similar flip-flop functionality and can be used as substitutes for the 74ACT74SJX in different applications.

In conclusion, the 74ACT74SJX is a dual positive-edge-triggered D-type flip-flop integrated circuit. It offers high-speed operation, wide voltage range, and compact package size. While it has limitations in terms of functionality and package options, it finds application in various digital electronic systems. Alternative models are available for substitution based on specific requirements.