Encyclopedia Entry: 74ACT399SCX

Product Overview

Category

The 74ACT399SCX belongs to the category of integrated circuits (ICs) and specifically falls under the family of digital multiplexers/demultiplexers.

Use

This product is primarily used in digital electronic systems for data selection and routing purposes. It allows multiple input signals to be selectively routed to a single output line or vice versa.

Characteristics

• High-speed operation: The 74ACT399SCX offers fast switching times, making it suitable for applications requiring quick data processing.
• Low power consumption: This IC is designed to operate efficiently with minimal power requirements.
• Wide operating voltage range: It can function within a broad voltage range, typically between 2V and 6V.
• Compatibility: The 74ACT399SCX is compatible with various logic families, including TTL, CMOS, and LSTTL.

Package

The 74ACT399SCX is available in a small outline package (SOIC), which provides ease of integration into circuit boards.

Essence

The essence of the 74ACT399SCX lies in its ability to efficiently manage data routing and selection tasks within digital electronic systems.

Packaging/Quantity

This product is typically sold in reels or tubes containing a specific quantity of ICs, such as 1000 units per reel.

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
• Logic Family: ACT
• Number of Inputs: 8
• Number of Outputs: 1

Detailed Pin Configuration

The 74ACT399SCX has a total of 16 pins, each serving a specific purpose. Here is the detailed pin configuration:

1. A0: Input A0
2. A1: Input A1
3. A2: Input A2
4. A3: Input A3
5. A4: Input A4
6. A5: Input A5
7. A6: Input A6
8. A7: Input A7
9. GND: Ground
10. Y: Output Y
11. S0: Select Input S0
12. S1: Select Input S1
13. S2: Select Input S2
14. E: Enable Input
15. VCC: Supply Voltage
16. NC: No Connection

Functional Features

The 74ACT399SCX offers the following functional features:

• Data selection: It allows for the selection of one out of eight input lines based on the select inputs (S0, S1, and S2).
• Data routing: The selected input line can be routed to the output line (Y) using the enable input (E).
• High-speed operation: The IC ensures fast data processing with minimal delay.

Advantages and Disadvantages

Advantages

• Fast switching times enable efficient data handling.
• Low power consumption contributes to energy efficiency.
• Wide operating voltage range enhances compatibility.
• Compact package facilitates integration into electronic systems.

Disadvantages

• Limited number of input and output lines may restrict certain applications requiring more extensive data routing capabilities.
• Lack of built-in protection features against electrical faults or overvoltage conditions.

Working Principles

The 74ACT399SCX operates based on the principles of digital multiplexing and demultiplexing. It utilizes select inputs (S0, S1, and S2) to determine which input line is connected to the output line (Y). The enable input (E) controls the routing of the selected input line to the output. The IC's internal circuitry ensures fast and accurate data selection and routing.

Detailed Application Field Plans

The 74ACT399SCX finds applications in various digital electronic systems, including but not limited to:

1. Data communication systems: Used for data routing and selection in multiplexed communication channels.
2. Microprocessor-based systems: Enables efficient data handling between different components of a microprocessor system.
3. Industrial automation: Facilitates data routing and selection in control systems, allowing for efficient signal processing.

Detailed and Complete Alternative Models

There are several alternative models available that offer similar functionality to the 74ACT399SCX. Some notable alternatives include:

• 74HC399: A CMOS-based multiplexer/demultiplexer with comparable characteristics and pin configuration.
• CD74AC399: An advanced version of the 74ACT399SCX, offering additional features and improved performance.

These alternative models can be considered based on specific application requirements and compatibility with existing systems.

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