Encyclopedia Entry: 74VHCT574AN

Product Overview

Category

The 74VHCT574AN 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 an octal D-type flip-flop with a tri-state output.

Characteristics

• High-speed operation
• Low power consumption
• Compatibility with both TTL and CMOS logic levels
• Tri-state outputs for bus-oriented applications

Package

The 74VHCT574AN is available in a standard 20-pin plastic dual in-line package (PDIP).

Essence

The essence of the 74VHCT574AN lies in its ability to store and control digital information, making it a crucial component in various electronic systems.

Packaging/Quantity

The IC is typically packaged in tubes or reels, with each tube containing 25 pieces or each reel containing 2500 pieces.

Specifications

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

Detailed Pin Configuration

The 74VHCT574AN has a total of 20 pins, each serving a specific function. The pin configuration is as follows:

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

Functional Features

The key functional features of the 74VHCT574AN include:

• Octal D-type flip-flop operation
• Tri-state outputs for bus-oriented applications
• Master reset functionality for clearing all flip-flops simultaneously
• Clock pulse input for synchronizing data transfer
• Output enable control to activate or deactivate the outputs

Advantages and Disadvantages

Advantages

• High-speed operation allows for efficient data processing
• Low power consumption helps in reducing energy usage
• Compatibility with both TTL and CMOS logic levels enables versatile integration into different systems
• Tri-state outputs facilitate bus sharing and reduce contention issues

Disadvantages

• Limited output current may restrict certain high-current applications
• Propagation delay time may affect real-time operations in critical timing scenarios

Working Principles

The 74VHCT574AN operates based on the principles of sequential logic. It utilizes D-type flip-flops to store and transfer digital data. The clock pulse input triggers the transfer of data from the input pins to the corresponding flip-flop outputs. The master reset input allows for simultaneous clearing of all flip-flops, while the output enable control determines whether the outputs are active or in a high-impedance state.

Detailed Application Field Plans

The 74VHCT574AN finds applications in various digital systems, including but not limited to:

1. Microcontrollers and microprocessors
2. Data storage and retrieval systems
3. Communication devices (e.g., routers, switches)
4. Industrial automation and control systems
5. Memory address decoding circuits
6. Bus-oriented architectures

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74VHCT574AN include:

1. SN74LS374N
2. CD4013BE
3. MC74HC574AN
4. 74ACT574SC

These alternatives can be considered based on specific requirements, availability, and compatibility with existing designs.

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