Encyclopedia Entry: 74VHC74N

Product Overview

Category

The 74VHC74N 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 basic building block in various applications such as counters, registers, and memory units.

Characteristics

• High-speed operation: The 74VHC74N offers fast switching times, making it suitable for high-frequency applications.
• Low power consumption: This IC is designed to operate efficiently with low power requirements.
• Wide operating voltage range: It can function within a voltage range of 2V to 5.5V, providing flexibility in different electronic systems.
• Compatibility: The 74VHC74N is compatible with both TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic families.

Package and Quantity

The 74VHC74N is typically available in a dual in-line package (DIP) with 14 pins. It is commonly sold in packs of 25 or 50 units.

Specifications

• Supply Voltage Range: 2V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Input Voltage High Level (VIH): 0.7 x VCC
• Input Voltage Low Level (VIL): 0.3 x VCC
• Output Voltage High Level (VOH): 0.9 x VCC
• Output Voltage Low Level (VOL): 0.1 x VCC
• Maximum Clock Frequency: 200 MHz

Pin Configuration

The 74VHC74N has a total of 14 pins, which are assigned specific functions:

1. CLR (Clear)
2. D (Data Input)
3. CLK (Clock Input)
4. Q (Output)
5. GND (Ground)
6. Q̅ (Complementary Output)
7. PRE (Preset)
8. VCC (Supply Voltage)
9. Q̅ (Complementary Output)
10. GND (Ground)
11. Q (Output)
12. PRE (Preset)
13. CLR (Clear)
14. D (Data Input)

Functional Features

The 74VHC74N is a dual positive-edge-triggered D-type flip-flop. It can store one bit of binary data and has two outputs, Q and Q̅ (complementary output). The flip-flop's state is determined by the clock input (CLK) and the data input (D). On each rising edge of the clock signal, the input data is transferred to the output.

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient data processing.
• Low power consumption makes it suitable for battery-powered devices.
• Wide operating voltage range provides compatibility with various systems.
• Compatibility with TTL and CMOS logic families enables easy integration into existing circuits.

Disadvantages

• Limited storage capacity: Being a single-bit flip-flop, it can only store one binary value at a time.
• Sensitivity to noise: The 74VHC74N may be susceptible to noise interference, affecting its reliability in noisy environments.

Working Principles

The 74VHC74N operates based on the principles of sequential logic. When the clock input receives a rising edge, the flip-flop captures the current state of the data input and stores it until the next clock cycle. This behavior allows for the synchronization and manipulation of digital signals in various applications.

Application Field Plans

The 74VHC74N finds extensive use in numerous electronic systems, including but not limited to: - Digital counters and registers - Memory units - Data storage and retrieval systems - Communication devices - Microcontrollers and microprocessors

Alternative Models

Several alternative models with similar functionality are available in the market. Some notable alternatives to the 74VHC74N include: - SN74LS74AN - CD4013BE - MC74HC74AN - HCF4013BE

These alternatives offer comparable features and can be used as substitutes depending on specific requirements.

In conclusion, the 74VHC74N is a versatile flip-flop IC widely used in digital electronics for storing and manipulating binary data. Its high-speed operation, low power consumption, and compatibility with different logic families make it a popular choice in various applications. However, its limited storage capacity and sensitivity to noise should be considered when selecting this IC for specific projects.