Encyclopedia Entry: 74ACT399PC

Product Information Overview

• Category: Integrated Circuit (IC)
• Use: Data Selector/Multiplexer
• Characteristics: High-speed, low-power consumption
• Package: DIP (Dual In-line Package)
• Essence: Logic IC for data selection and multiplexing
• Packaging/Quantity: Typically sold in packs of 25 units

Specifications

The 74ACT399PC is a high-speed CMOS integrated circuit designed for data selection and multiplexing applications. It operates on a wide voltage range and offers low power consumption, making it suitable for various electronic devices.

Key specifications include:

• Supply Voltage Range: 2V to 6V
• High-Speed Operation: Propagation Delay Time of 5ns
• Low Power Consumption: Typically 10µA
• Input/Output Compatibility: TTL, LSTTL, and CMOS

Detailed Pin Configuration

The 74ACT399PC features a 16-pin Dual In-line Package (DIP) with the following pin configuration:

1. A0 - Address Input 0
2. A1 - Address Input 1
3. A2 - Address Input 2
4. A3 - Address Input 3
5. E - Enable Input
6. S0 - Select Input 0
7. S1 - Select Input 1
8. S2 - Select Input 2
9. S3 - Select Input 3
10. I0 - Data Input 0
11. I1 - Data Input 1
12. I2 - Data Input 2
13. I3 - Data Input 3
14. O0 - Output 0
15. O1 - Output 1
16. GND - Ground

Functional Features

The 74ACT399PC offers the following functional features:

• Data Selection: The IC allows for the selection of one out of sixteen data inputs based on the address and select inputs.
• Multiplexing: It can multiplex multiple data inputs onto a single output line.
• Enable Control: The enable input (E) enables or disables the data selection/multiplexing operation.

Advantages and Disadvantages

Advantages of using the 74ACT399PC include:

• High-speed operation, suitable for time-critical applications
• Low power consumption, contributing to energy-efficient designs
• Wide voltage range compatibility with various logic families

Disadvantages of the 74ACT399PC include:

• Limited number of data inputs (16)
• Requires external control signals for proper operation

Working Principles

The 74ACT399PC operates based on the principles of digital logic. It utilizes address inputs to select one of the data inputs and multiplexes it onto the output line. The enable input controls the operation, allowing for data selection or disabling the multiplexing function.

Detailed Application Field Plans

The 74ACT399PC finds application in various fields, including:

1. Communication Systems: Used for data routing and switching in telecommunication networks.
2. Computer Systems: Employed in memory addressing and data bus multiplexing.
3. Industrial Automation: Utilized for signal routing and control in automated systems.
4. Consumer Electronics: Integrated into audio/video equipment for channel selection.

Detailed and Complete Alternative Models

Alternative models that serve similar functions to the 74ACT399PC include:

1. 74HC399: High-Speed CMOS IC with similar pin configuration and functionality.
2. CD4051: Analog Multiplexer/Demultiplexer IC with higher channel count.
3. SN74LS151: TTL Logic IC with 8-input multiplexing capability.

These alternative models provide options based on specific requirements and compatibility with different logic families.

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