Encyclopedia Entry: 74ABT821D,623

Product Overview

Category

The 74ABT821D,623 belongs to the category of integrated circuits (ICs) and specifically falls under the family of digital logic devices.

Use

This product is primarily used in digital systems for various applications such as data processing, signal routing, and control functions.

Characteristics

• High-speed operation: The 74ABT821D,623 is designed to operate at high speeds, making it suitable for time-critical applications.
• Low power consumption: This IC is optimized for low power consumption, ensuring efficient energy usage.
• Wide voltage range: It can operate within a wide voltage range, allowing compatibility with different system requirements.
• Robustness: The 74ABT821D,623 is built to withstand noise and interference, ensuring reliable performance in challenging environments.

Package and Quantity

The 74ABT821D,623 is available in a standard dual in-line package (DIP) or surface mount package (SMD). It is typically sold in reels or tubes containing multiple units, depending on the supplier.

Specifications

• Supply Voltage: 2.0V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Logic Family: ABT
• Number of Pins: 20
• Logic Function: Octal D-type flip-flop with reset

Pin Configuration

The pin configuration of the 74ABT821D,623 is as follows:

┌───┬───┐ Q0 │1 ┆ 20│ VCC Q1 │2 19│ Q7 Q2 │3 18│ Q6 Q3 │4 17│ Q5 Q4 │5 16│ Q4 GND│6 15│ Q3 D0 │7 14│ Q2 D1 │8 13│ Q1 D2 │9 12│ Q0 D3 │10 11│ MR (Master Reset) └───┴───┘

Functional Features

The 74ABT821D,623 offers the following functional features:

• Octal D-type flip-flop: It has eight individual D-type flip-flops that can store and output data.
• Master Reset (MR): The master reset input allows for synchronous resetting of all flip-flops to a known state.
• High-speed operation: The IC is capable of handling high-frequency signals efficiently.
• Edge-triggered design: The flip-flops are triggered by the rising edge of the clock signal, ensuring precise timing.

Advantages and Disadvantages

Advantages

• High-speed operation enables efficient data processing in time-critical applications.
• Low power consumption contributes to energy efficiency and longer battery life.
• Wide voltage range allows compatibility with various system requirements.
• Robustness ensures reliable performance in noisy environments.

Disadvantages

• Limited number of flip-flops (eight) may not be sufficient for complex applications requiring more storage elements.
• Lack of additional features such as asynchronous reset or preset options may limit flexibility in certain designs.

Working Principles

The 74ABT821D,623 operates based on the principles of digital logic. Each flip-flop within the IC stores a single bit of information, which can be either a logic high or low level. The inputs (D0-D3) control the data to be stored, while the clock input (CLK) triggers the transfer of data from the inputs to the outputs (Q0-Q7). The master reset input (MR) synchronously resets all flip-flops to a known state when activated.

Application Field Plans

The 74ABT821D,623 can be utilized in various digital systems and applications, including but not limited to: - Microprocessors and microcontrollers - Data communication systems - Industrial automation - Control systems - Signal processing equipment

Alternative Models

Several alternative models with similar functionality are available in the market. Some notable alternatives to the 74ABT821D,623 include: - 74HC821: A CMOS logic IC with octal D-type flip-flops. - SN74LS821: A TTL logic IC offering octal D-type flip-flops. - CD4013: A dual D-type flip-flop IC suitable for general-purpose applications.

These alternative models provide similar functionality and can be considered based on specific design requirements.

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