MC74ACT139MELG

Product Overview

Category: Integrated Circuit (IC)

Use: The MC74ACT139MELG is a dual 2-to-4 line decoder/demultiplexer IC. It is commonly used in digital electronics for decoding and demultiplexing applications.

Characteristics: - High-speed operation - Low power consumption - Wide operating voltage range - Schmitt-trigger inputs for noise immunity - TTL compatible inputs and outputs

Package: The MC74ACT139MELG is available in a small outline integrated circuit (SOIC) package.

Essence: This IC is essential for converting binary-coded input signals into corresponding output signals, making it suitable for various digital applications.

Packaging/Quantity: The MC74ACT139MELG is typically sold in reels or tubes, with each reel/tube containing a specific quantity of ICs.

Specifications

• Supply Voltage Range: 2.0V to 6.0V
• Input Voltage Range: 0V to VCC
• Output Voltage Range: 0V to VCC
• Operating Temperature Range: -40°C to +85°C
• Maximum Propagation Delay: 8ns
• Maximum Quiescent Current: 4μA

Pin Configuration

The MC74ACT139MELG has a total of 16 pins, which are assigned as follows:

1. GND (Ground)
2. A0 (Input A0)
3. A1 (Input A1)
4. E (Enable Input)
5. Y0 (Output Y0)
6. Y1 (Output Y1)
7. Y2 (Output Y2)
8. Y3 (Output Y3)

9. VCC (Positive Power Supply)

10. B0 (Input B0)

11. B1 (Input B1)
12. E (Enable Input)
13. Y0 (Output Y0)
14. Y1 (Output Y1)
15. Y2 (Output Y2)
16. Y3 (Output Y3)

Functional Features

The MC74ACT139MELG offers the following functional features:

• Dual 2-to-4 line decoding capability
• Demultiplexing functionality
• High-speed operation for efficient signal processing
• Schmitt-trigger inputs for improved noise immunity
• TTL compatible inputs and outputs for easy integration with other digital components

Advantages and Disadvantages

Advantages: - High-speed operation allows for quick signal decoding and demultiplexing. - Low power consumption makes it suitable for battery-powered devices. - Wide operating voltage range provides flexibility in various applications. - Schmitt-trigger inputs ensure reliable performance even in noisy environments. - TTL compatibility simplifies integration with other digital circuits.

Disadvantages: - Limited to dual 2-to-4 line decoding/demultiplexing functionality. - May not be suitable for applications requiring more complex decoding or demultiplexing operations.

Working Principles

The MC74ACT139MELG operates based on the principles of digital logic. It takes binary-coded input signals (A0, A1, B0, B1) and decodes them into corresponding output signals (Y0, Y1, Y2, Y3). The enable input (E) controls the operation of the decoder/demultiplexer. When enabled, the IC performs the decoding/demultiplexing function according to the input signals.

Detailed Application Field Plans

The MC74ACT139MELG finds application in various fields, including but not limited to:

1. Digital communication systems
2. Data multiplexing and demultiplexing
3. Address decoding in microcontrollers and microprocessors
4. Memory systems and address selection
5. Programmable logic devices
6. Industrial automation and control systems

Detailed and Complete Alternative Models

1. SN74ACT139: Similar dual 2-to-4 line decoder/demultiplexer IC from Texas Instruments.
2. CD74ACT139: Dual 2-to-4 line decoder/demultiplexer IC from Texas Instruments with similar functionality.
3. 74HC139: Dual 2-to-4 line decoder/demultiplexer IC from NXP Semiconductors.

These alternative models provide similar decoding and demultiplexing capabilities, allowing users to choose the most suitable option for their specific requirements.

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