Encyclopedia Entry: 74ACTQ821SPC

Product Overview

Category

The 74ACTQ821SPC belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronic systems for various applications, including data processing, communication devices, and control systems.

Characteristics

• The 74ACTQ821SPC is a high-speed, low-power, quadruple AND-OR-INVERT gate.
• It operates on a wide voltage range, typically between 2V and 6V.
• This IC offers excellent noise immunity and high-speed performance.
• It is designed to be compatible with both TTL and CMOS logic families.

Package

The 74ACTQ821SPC is available in a small-outline integrated circuit (SOIC) package. This package provides compactness and ease of integration into electronic systems.

Essence

The essence of the 74ACTQ821SPC lies in its ability to perform logical operations efficiently and reliably within digital circuits.

Packaging/Quantity

This IC is typically sold in reels or tubes, containing a specific quantity of units per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Logic Family: ACTQ
• Number of Gates: Quadruple (4)
• Gate Type: AND-OR-INVERT
• Supply Voltage Range: 2V - 6V
• Operating Temperature Range: -40°C to +85°C
• Input/Output Compatibility: TTL and CMOS
• Propagation Delay: <10 ns
• Output Drive Capability: 24 mA

Detailed Pin Configuration

The 74ACTQ821SPC has a total of 14 pins, each serving a specific function within the circuit. The pin configuration is as follows:

1. Pin 1: Input A1
2. Pin 2: Input B1
3. Pin 3: Output Y1
4. Pin 4: Input A2
5. Pin 5: Input B2
6. Pin 6: Output Y2
7. Pin 7: GND (Ground)
8. Pin 8: Input A3
9. Pin 9: Input B3
10. Pin 10: Output Y3
11. Pin 11: VCC (Supply Voltage)
12. Pin 12: Input A4
13. Pin 13: Input B4
14. Pin 14: Output Y4

Functional Features

The 74ACTQ821SPC offers the following functional features:

• Quadruple AND-OR-INVERT gates allow for complex logical operations.
• High-speed operation enables efficient data processing.
• Wide supply voltage range ensures compatibility with various systems.
• Excellent noise immunity enhances reliability in noisy environments.
• TTL and CMOS compatibility allows for seamless integration into different logic families.

Advantages and Disadvantages

Advantages

• High-speed performance enables rapid data processing.
• Wide supply voltage range provides flexibility in system design.
• Excellent noise immunity ensures reliable operation in noisy environments.
• Compatibility with both TTL and CMOS logic families allows for versatile applications.

Disadvantages

• Limited output drive capability may restrict use in certain high-current applications.
• The small-outline package may require additional precautions for heat dissipation in high-power circuits.

Working Principles

The 74ACTQ821SPC operates based on the principles of digital logic. It combines AND, OR, and INVERT functions to perform complex logical operations. The inputs are processed through multiple stages within the IC, resulting in the desired output based on the applied logic.

Detailed Application Field Plans

The 74ACTQ821SPC finds applications in various fields, including:

1. Data Processing Systems: Used for logical operations in microprocessors, digital signal processors, and arithmetic logic units.
2. Communication Devices: Employed in networking equipment, routers, and switches for data routing and filtering.
3. Control Systems: Utilized in industrial automation, robotics, and automotive systems for logical control and decision-making.

Detailed and Complete Alternative Models

1. 74ACTQ821SC: Similar to the 74ACTQ821SPC but available in a standard ceramic package.
2. 74ACTQ821MTCX: Offers the same functionality with additional ESD protection features.
3. 74ACTQ821PC: Provides similar performance in a plastic DIP package.

These alternative models offer similar functionality and can be considered as substitutes for the 74ACTQ821SPC based on specific requirements and preferences.

In conclusion, the 74ACTQ821SPC is a versatile integrated circuit that offers high-speed, low-power operation for logical functions. Its compatibility with TTL and CMOS logic families, wide supply voltage range, and excellent noise immunity make it suitable for various applications in digital electronic systems.