Encyclopedia Entry: 74ACT821SPC

Product Overview

Use

This IC is commonly used in digital electronic systems for various applications, including data processing, signal amplification, and logic operations.

Characteristics

High-speed operation: The 74ACT821SPC is designed to operate at high speeds, making it suitable for time-critical applications.
Low power consumption: This IC has low power requirements, making it energy-efficient.
Wide operating voltage range: It can operate within a wide voltage range, providing flexibility in different electronic systems.
Compatibility: The 74ACT821SPC is compatible with other TTL (Transistor-Transistor Logic) devices, allowing easy integration into existing circuits.

Package and Quantity

The 74ACT821SPC is available in a standard 16-pin plastic dual in-line package (DIP). Each package contains one IC.

Specifications

Supply Voltage: 4.5V to 5.5V
Operating Temperature Range: -40°C to +85°C
Logic Family: Advanced CMOS (Complementary Metal-Oxide-Semiconductor)
Number of Inputs: 10
Number of Outputs: 1
Logic Level: TTL-compatible

Pin Configuration

The detailed pin configuration of the 74ACT821SPC is as follows:

┌───┬───┐ │ 1 │ 16│ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ └───┴───┘

Functional Features

The 74ACT821SPC is primarily used as a binary counter. It can count up to 1023 (2^10 - 1) and provides a single output that indicates the current count value. The IC features synchronous counting, which means that the count value changes simultaneously with the clock input.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data processing. - Low power consumption contributes to energy efficiency. - Wide operating voltage range provides flexibility in different electronic systems. - Compatibility with TTL devices simplifies integration into existing circuits.

Disadvantages: - Limited number of outputs restricts its use in certain applications requiring multiple outputs. - Synchronous counting may introduce timing constraints in complex systems.

Working Principles

The 74ACT821SPC operates based on the principles of digital logic. It utilizes flip-flops and combinational logic to perform counting operations. The clock input triggers the flip-flops, causing them to change their state and update the count value.

Detailed Application Field Plans

The 74ACT821SPC finds applications in various fields, including: 1. Digital communication systems 2. Microprocessor-based systems 3. Industrial automation 4. Instrumentation and measurement equipment 5. Consumer electronics

Alternative Models

Other alternative models that provide similar functionality to the 74ACT821SPC include: - 74HC821: This IC offers compatibility with CMOS logic levels. - 74LS821: A low-power version of the IC suitable for battery-operated devices. - CD4029: A CMOS-based counter IC with additional features like presetting and parallel load capability.

In conclusion, the 74ACT821SPC is a high-speed, low-power binary counter IC used in various digital electronic systems. Its compatibility, wide operating voltage range, and energy efficiency make it a versatile choice for different applications.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av 74ACT821SPC i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of 74ACT821SPC in technical solutions:

Q: What is the 74ACT821SPC? A: The 74ACT821SPC is a specific type of integrated circuit (IC) that functions as an 8-bit D-type flip-flop with 3-state outputs.
Q: What are the typical applications of the 74ACT821SPC? A: The 74ACT821SPC is commonly used in digital systems for tasks such as data storage, synchronization, and signal routing.
Q: How does the 74ACT821SPC work? A: The IC operates by storing and outputting digital data based on clock signals and control inputs. It can hold or transfer data based on the input conditions.
Q: What is the maximum operating frequency of the 74ACT821SPC? A: The maximum operating frequency of the IC is typically specified by the manufacturer and can range from several megahertz to tens of megahertz.
Q: Can the 74ACT821SPC be cascaded to increase the number of bits stored? A: Yes, multiple 74ACT821SPC ICs can be cascaded together to increase the number of bits stored or transferred.
Q: What is the power supply voltage range for the 74ACT821SPC? A: The IC typically operates within a power supply voltage range of 4.5V to 5.5V.
Q: Does the 74ACT821SPC support 3-state outputs? A: Yes, the IC has 3-state outputs, which means it can effectively disconnect its outputs from the rest of the circuit when not actively driving them.
Q: Can the 74ACT821SPC be used in both synchronous and asynchronous systems? A: Yes, the IC can be used in both synchronous and asynchronous systems, depending on the application requirements.
Q: What is the typical propagation delay of the 74ACT821SPC? A: The propagation delay, which is the time taken for a change at the input to affect the output, is typically specified by the manufacturer and can range from a few nanoseconds to tens of nanoseconds.
Q: Are there any specific precautions to consider when using the 74ACT821SPC? A: It is important to follow the manufacturer's datasheet and guidelines for proper power supply decoupling, signal integrity, and thermal considerations to ensure reliable operation of the IC.

Please note that the answers provided here are general and may vary based on the specific datasheet and manufacturer recommendations for the 74ACT821SPC.