74LV139D,112

Product Overview

Category

The 74LV139D,112 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronics for decoding and demultiplexing applications.

Characteristics

• Low-voltage operation: The 74LV139D,112 operates at a low voltage, typically between 1.65V and 5.5V.
• High-speed performance: It offers fast switching times, making it suitable for high-frequency applications.
• Dual 2-to-4 line decoder/demultiplexer: This IC can decode two binary inputs into four separate outputs.
• Schmitt-trigger action on all inputs: It provides hysteresis, ensuring noise immunity and stable operation.
• Balanced propagation delays: The delay time from input to output is well-matched, ensuring accurate signal processing.

Package

The 74LV139D,112 is available in a small-outline package (SOIC) with 16 pins.

Essence

The essence of this IC lies in its ability to decode binary inputs and demultiplex them into multiple outputs, enabling efficient data routing and selection.

Packaging/Quantity

The 74LV139D,112 is typically packaged in reels or tubes, containing a quantity of 2500 units per reel/tube.

Specifications

• Supply Voltage Range: 1.65V to 5.5V
• Input Voltage Range: -0.5V to VCC + 0.5V
• Output Voltage Range: -0.5V to VCC + 0.5V
• Operating Temperature Range: -40°C to +125°C
• Maximum Propagation Delay: 10 ns
• Maximum Quiescent Current: 2 μA

Detailed Pin Configuration

The 74LV139D,112 has 16 pins, numbered as follows:

1. Y0
2. Y1
3. GND (Ground)
4. A0
5. A1
6. E1
7. E2
8. VCC (Supply Voltage)
9. Y2
10. Y3
11. B0
12. B1
13. E3
14. E4
15. NC (No Connection)
16. GND (Ground)

Functional Features

• Dual 2-to-4 line decoding: The IC can decode two sets of binary inputs into four separate outputs.
• Demultiplexing capability: It allows the selection of one output from multiple inputs based on the decoding logic.
• Schmitt-trigger action: All inputs have Schmitt-trigger characteristics, providing noise immunity and stable operation.
• Balanced propagation delays: The delay from input to output is well-matched, ensuring accurate signal processing.

Advantages and Disadvantages

Advantages

• Low-voltage operation enables compatibility with a wide range of digital systems.
• High-speed performance makes it suitable for time-critical applications.
• Schmitt-trigger action ensures reliable operation in noisy environments.
• Balanced propagation delays ensure accurate signal processing.

Disadvantages

• Limited number of outputs (four) may restrict its use in complex applications requiring more outputs.
• Availability in only one package type (SOIC) may limit its integration options in certain designs.

Working Principles

The 74LV139D,112 operates based on the principles of digital decoding and demultiplexing. It takes two binary inputs (A0 and A1) and selects one of the four outputs (Y0 to Y3) based on the decoding logic. The enable inputs (E1, E2, E3, and E4) control the operation of the decoder/demultiplexer.

When the enable inputs are active, the IC decodes the binary inputs and routes the selected output accordingly. The Schmitt-trigger action on all inputs ensures stable operation by providing hysteresis and noise immunity.

Detailed Application Field Plans

The 74LV139D,112 finds applications in various digital systems, including but not limited to:

1. Address decoding in microcontrollers and microprocessors.
2. Data routing and selection in multiplexers and demultiplexers.
3. Memory address decoding in RAM and ROM modules.
4. Signal routing and selection in communication systems.
5. Control logic implementation in digital circuits.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the 74LV139D,112 include:

1. 74HC139: This IC operates at a higher voltage range (2V to 6V) and offers comparable decoding and demultiplexing capabilities.
2. CD74HCT139E: It is a CMOS IC with TTL-compatible inputs and provides dual 2-to-4 line decoding/demultiplexing functionality.
3. SN74LS139N: This IC operates at a wider