Encyclopedia Entry: 74AC273SJ

Product Overview

Category

The 74AC273SJ belongs to the category of integrated circuits (ICs), specifically flip-flops.

Use

This IC is commonly used in digital electronics for storing and manipulating binary data. It serves as a memory element in various applications.

Characteristics

• The 74AC273SJ is a high-speed, octal D-type flip-flop with a synchronous reset.
• It operates on a wide voltage range, typically between 2V and 6V.
• This IC offers low power consumption and high noise immunity.
• It is designed to work in both commercial and industrial temperature ranges.
• The 74AC273SJ is known for its reliable performance and compatibility with other TTL logic families.

Package and Quantity

The 74AC273SJ is available in a standard 20-pin plastic dual in-line package (PDIP). It is commonly sold in reels or tubes containing multiple units.

Specifications

• Supply Voltage Range: 2V to 6V
• High-Level Input Voltage: 2V to VCC
• Low-Level Input Voltage: GND to 0.8V
• High-Level Output Voltage: VCC - 0.5V
• Low-Level Output Voltage: 0.5V
• Maximum Operating Frequency: 125 MHz
• Propagation Delay Time: 4.5 ns (typical)

Pin Configuration

The 74AC273SJ has a total of 20 pins, each serving a specific function. Here is the detailed pin configuration:

1. CP (Clock Pulse) - Clock input for flip-flop operation.
2. D0-D7 (Data Inputs) - Eight individual data inputs.
3. Q0-Q7 (Outputs) - Corresponding outputs for each data input.
4. MR (Master Reset) - Active-low synchronous reset input.
5. GND (Ground) - Reference ground for the IC.
6. Q7' (Complementary Output) - Complementary output of Q7.
7. OE (Output Enable) - Active-low output enable input.
8. VCC (Supply Voltage) - Positive power supply terminal.

Functional Features

• The 74AC273SJ operates as an edge-triggered D-type flip-flop, storing data on the rising edge of the clock signal.
• It features a synchronous reset function, allowing all outputs to be cleared simultaneously when the master reset input is activated.
• The IC supports active-low output enable, which can be used to disable the outputs when necessary.
• With its octal design, the 74AC273SJ provides eight individual flip-flops in a single package, making it space-efficient and cost-effective.

Advantages and Disadvantages

Advantages: - High-speed operation enables efficient data storage and manipulation. - Wide voltage range compatibility allows for versatile integration into various digital systems. - Low power consumption contributes to energy efficiency. - Reliable performance and compatibility with other TTL logic families ensure seamless integration.

Disadvantages: - Limited number of flip-flops per package may not suffice for complex applications requiring a higher count. - Synchronous reset functionality may introduce additional complexity in certain designs.

Working Principles

The 74AC273SJ functions based on the principles of sequential logic. It utilizes flip-flops to store and transfer binary data. The clock input triggers the flip-flops to capture the data present at the inputs and propagate it to the corresponding outputs. The synchronous reset input allows for simultaneous clearing of all outputs when activated.

Application Field Plans

The 74AC273SJ finds extensive use in various digital systems and applications, including but not limited to: - Microprocessors and microcontrollers - Data storage devices - Communication systems - Industrial automation - Control systems

Alternative Models

For those seeking alternatives to the 74AC273SJ, several similar ICs are available in the market. Some notable alternatives include: - 74HC273: A CMOS-based octal D-type flip-flop with similar functionality. - 74LS273: A low-power Schottky TTL-based octal D-type flip-flop. - CD4013: A dual D-type flip-flop with complementary outputs.

These alternative models offer comparable features and can be considered based on specific application requirements.

In conclusion, the 74AC273SJ is a high-speed, octal D-type flip-flop widely used in digital electronics. Its reliable performance, compatibility, and versatile applications make it an essential component in various digital systems.

Word Count: 550