Encyclopedia Entry: 74VHCT374AN

Product Overview

Category

The 74VHCT374AN 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 transferring binary data. It serves as a latch or register, allowing for sequential data storage and retrieval.

Characteristics

• High-speed operation
• Low power consumption
• Compatibility with both TTL and CMOS logic levels
• Wide operating voltage range
• Schmitt-trigger inputs for noise immunity

Package

The 74VHCT374AN is typically available in a 20-pin plastic dual in-line package (PDIP). This package offers ease of handling and compatibility with standard PCB mounting techniques.

Essence

The essence of the 74VHCT374AN lies in its ability to store and manipulate digital information reliably and efficiently. It provides a crucial building block for various digital systems and applications.

Packaging/Quantity

The IC is commonly supplied in reels or tubes, with quantities varying depending on the manufacturer and distributor. Typical packaging options include tape and reel packaging with 2500 units per reel.

Specifications

• Supply Voltage Range: 2.0V to 5.5V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Clock Frequency: 100 MHz
• Propagation Delay: 6 ns (max)
• Output Current: ±8 mA

Detailed Pin Configuration

The 74VHCT374AN features a total of 20 pins, each serving a specific function. The pin configuration is as follows:

1. D0: Data input 0
2. D1: Data input 1
3. D2: Data input 2
4. D3: Data input 3
5. D4: Data input 4
6. D5: Data input 5
7. D6: Data input 6
8. D7: Data input 7
9. GND: Ground
10. Q0: Output 0
11. Q1: Output 1
12. Q2: Output 2
13. Q3: Output 3
14. Q4: Output 4
15. Q5: Output 5
16. Q6: Output 6
17. Q7: Output 7
18. OE: Output Enable
19. CP: Clock Pulse
20. VCC: Supply Voltage

Functional Features

The 74VHCT374AN offers the following functional features:

• Data storage and transfer using flip-flop registers
• Asynchronous clear input for resetting the outputs
• Tri-state outputs for bus-oriented applications
• Edge-triggered clock input for synchronized operation
• High noise immunity due to Schmitt-trigger inputs

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient data handling in time-critical applications.
• Low power consumption makes it suitable for battery-powered devices.
• Compatibility with both TTL and CMOS logic levels enables easy integration into various digital systems.
• Wide operating voltage range provides flexibility in different power supply scenarios.
• Schmitt-trigger inputs enhance noise immunity, ensuring reliable operation even in noisy environments.

Disadvantages

• Limited output current may restrict its use in certain high-current applications.
• The 20-pin package size may not be suitable for space-constrained designs.

Working Principles

The 74VHCT374AN operates based on the principles of flip-flops and sequential logic. It stores data at its inputs and transfers it to the outputs upon receiving a clock pulse. The asynchronous clear input allows for resetting the outputs when necessary. The tri-state outputs enable bus sharing among multiple devices, while the Schmitt-trigger inputs enhance noise immunity.

Detailed Application Field Plans

The 74VHCT374AN finds applications in various digital systems, including but not limited to:

1. Microcontrollers and microprocessors
2. Data storage and retrieval systems
3. Communication equipment
4. Industrial automation and control systems
5. Automotive electronics
6. Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74VHCT374AN include:

1. 74HC374: This IC operates at a higher voltage range (2V to 6V) and offers comparable performance.
2. CD74ACT374: A CMOS-based alternative with improved speed and lower power consumption.
3. SN74LS374: A TTL-based flip-flop IC with compatibility to older logic families.

These alternatives can be considered based on specific application requirements and design constraints.

In conclusion, the 74VHCT374AN is