Encyclopedia Entry: 74VHC74SJX

Product Overview

Category

The 74VHC74SJX belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• High-speed operation: The 74VHC74SJX is designed to operate at high speeds, making it suitable for time-critical applications.
• Low power consumption: This IC has low power requirements, making it energy-efficient.
• Wide voltage range: It can operate within a wide voltage range, typically between 2V and 5.5V.
• Dual D-type flip-flop: The 74VHC74SJX consists of two independent D-type flip-flops, allowing for versatile circuit designs.

Package and Quantity

The 74VHC74SJX is available in a small outline package (SOP) with a surface-mount design. It is commonly sold in reels or tubes containing multiple units.

Essence

The essence of the 74VHC74SJX lies in its ability to store and manipulate digital signals effectively, providing reliable and efficient data processing capabilities.

Specifications

• Supply Voltage Range: 2V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Input/Output Compatibility: CMOS
• Maximum Clock Frequency: 200 MHz
• Flip-Flop Type: D-Type
• Number of Flip-Flops: 2
• Logic Family: VHC

Pin Configuration

The 74VHC74SJX features a 14-pin configuration, as follows:

┌───┬───┐ Q1 ─┤1 14├─ VCC D1 ─┤2 13├─ Q2 CP ─┤3 12├─ CLR GND ─┤4 11├─ D2 D2 ─┤5 10├─ CP Q2 ─┤6 9├─ D1 CLR ─┤7 8├─ Q1 └─────┘

Functional Features

• Dual Flip-Flop: The 74VHC74SJX contains two independent D-type flip-flops, allowing for simultaneous storage and manipulation of two separate signals.
• Asynchronous Clear (CLR) Input: This input allows for the immediate reset of the flip-flop outputs to a known state.
• Clock (CP) Input: The clock input triggers the flip-flop to capture and store the data present at the D input.
• Data (D) Inputs: These inputs provide the digital data to be stored in the flip-flops.
• Output (Q) Pins: The Q outputs represent the stored data within each flip-flop.

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient data processing.
• Low power consumption makes it suitable for battery-powered devices.
• Wide voltage range allows for compatibility with various systems.
• Small package size and surface-mount design facilitate easy integration into circuit boards.

Disadvantages

• Limited number of flip-flops may restrict complex circuit designs.
• Sensitivity to electrostatic discharge (ESD) requires proper handling during installation.

Working Principles

The 74VHC74SJX operates based on the principles of digital logic. When the clock input (CP) transitions from low to high, the flip-flop captures and stores the data present at the D input. The stored data is then available at the respective Q output. The asynchronous clear input (CLR) allows for the immediate reset of the flip-flop outputs to a known state.

Application Field Plans

The 74VHC74SJX finds applications in various fields, including:

1. Communication Systems: Used in signal processing and data transmission circuits.
2. Computer Hardware: Employed in memory units and logic operations.
3. Consumer Electronics: Integrated into devices such as smartphones, tablets, and gaming consoles.
4. Industrial Automation: Utilized in control systems and data acquisition modules.
5. Automotive Electronics: Incorporated in vehicle control units and infotainment systems.

Alternative Models

Several alternative models with similar functionality to the 74VHC74SJX include:

• SN74LVC74A
• MC74VHC74
• CD74HCT74
• 74ACT74

These alternatives can be considered based on specific project requirements, availability, and cost considerations.

In conclusion, the 74VHC74SJX is a versatile integrated circuit that offers high-speed operation, low power consumption, and wide voltage range capabilities. Its dual flip-flop design, along