Encyclopedia Entry: 74ACT521SJX

Product Overview

Category

The 74ACT521SJX belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronic systems for various applications, including data storage, signal processing, and control circuitry.

Characteristics

• High-speed operation: The 74ACT521SJX is designed to operate at high speeds, making it suitable for time-critical applications.
• Low power consumption: This IC is designed to minimize power consumption, ensuring efficient operation.
• Wide voltage range: It can operate within a wide voltage range, providing flexibility in different electronic systems.
• Compatibility: The 74ACT521SJX is compatible with other TTL logic families, allowing for easy integration into existing systems.

Package and Quantity

The 74ACT521SJX is available in a small outline integrated circuit (SOIC) package. Each package contains one IC.

Specifications

• Supply Voltage Range: 2V to 6V
• 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
• Number of Pins: 20

Pin Configuration

The detailed pin configuration of the 74ACT521SJX 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 (Output 0)
14. Q1 (Output 1)
15. Q2 (Output 2)
16. Q3 (Output 3)
17. Q4 (Output 4)
18. Q5 (Output 5)
19. Q6 (Output 6)
20. VCC (Supply Voltage)

Functional Features

The 74ACT521SJX is a synchronous, binary counter with an asynchronous master reset function. It can be used as a divide-by-n counter or as a modulo-n counter, depending on the application requirements. The IC features a clock pulse input (CP) that increments the counter on each rising edge of the clock signal. The output enable (OE) pin allows for the activation or deactivation of the outputs.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data processing. - Low power consumption ensures energy efficiency. - Wide voltage range provides flexibility in different electronic systems. - Compatibility with other TTL logic families simplifies integration.

Disadvantages: - Limited number of outputs may restrict certain applications requiring more outputs. - Synchronous operation may introduce timing constraints in complex systems.

Working Principles

The 74ACT521SJX operates based on synchronous counting principles. When the clock pulse (CP) input receives a rising edge, the counter increments by one. The outputs reflect the current count value. The master reset (MR) input asynchronously resets the counter to its initial state when activated.

Application Field Plans

The 74ACT521SJX finds applications in various fields, including: 1. Digital communication systems 2. Microprocessor-based systems 3. Data storage devices 4. Control circuitry 5. Signal processing systems

Alternative Models

Other alternative models that can be considered as replacements for the 74ACT521SJX include: - 74HC521 - 74LS521 - CD54/74AC521

These alternative models offer similar functionality and can be used interchangeably in many applications.

In conclusion, the 74ACT521SJX is a versatile integrated circuit commonly used in digital electronic systems. Its high-speed operation, low power consumption, and wide voltage range make it suitable for various applications. While it has certain limitations, such as a limited number of outputs, it offers advantages in terms of compatibility and efficiency. Understanding its pin configuration, functional features, and working principles allows for effective utilization in different application fields.