ON Semiconductor
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MC74ACT139DTR2G
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MC74ACT139DTR2G

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Decoder/Demultiplexer
  • Characteristics: High-speed, low-power consumption
  • Package: SOIC-16
  • Essence: Digital logic decoder/demultiplexer
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Logic Family: ACT
  • Number of Inputs: 2
  • Number of Outputs: 4
  • Supply Voltage: 2.0V to 6.0V
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay: 5ns (typical)
  • Output Current: ±24mA
  • Power Dissipation: 500mW

Detailed Pin Configuration

The MC74ACT139DTR2G has a total of 16 pins arranged as follows:

__ __ A1 |1 \__/ 16| VCC B1 |2 15| Y0 A0 |3 14| Y1 B0 |4 MC 13| Y2 GND |5 74 12| Y3 Y0 |6 ACT 11| G2B Y1 |7 139 10| G2A Y2 |8 9| G1 -- --

Functional Features

The MC74ACT139DTR2G is a dual 2-to-4 decoder/demultiplexer IC. It takes two binary inputs, A0 and A1, and selects one of the four outputs, Y0 to Y3, based on the input combination. The selection is controlled by the G1 and G2A/G2B inputs.

Advantages and Disadvantages

Advantages: - High-speed operation - Low-power consumption - Wide supply voltage range - Compact SOIC-16 package - Easy to use and integrate into digital circuits

Disadvantages: - Limited number of inputs and outputs - Not suitable for complex decoding applications

Working Principles

The MC74ACT139DTR2G operates on the principle of digital logic decoding. It uses a combination of AND and NOT gates to decode the input binary values and select the appropriate output. The G1 and G2A/G2B inputs control the selection process.

Detailed Application Field Plans

The MC74ACT139DTR2G is commonly used in various digital systems and applications, including: - Address decoding in microprocessors and memory systems - Data routing and selection in multiplexers - Control signal generation in digital circuits - Binary-to-decimal conversion in display drivers

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to the MC74ACT139DTR2G are: - SN74LS139N - CD74HC139E - 74HCT139

These models offer similar functionality and characteristics, but may differ in terms of specific specifications and package options.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням MC74ACT139DTR2G у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of MC74ACT139DTR2G in technical solutions:

  1. Q: What is MC74ACT139DTR2G? A: MC74ACT139DTR2G is a dual 2-to-4 decoder/demultiplexer integrated circuit (IC) that can be used in various technical applications.

  2. Q: What is the purpose of MC74ACT139DTR2G? A: The purpose of MC74ACT139DTR2G is to decode binary information and select one of the four outputs based on the input signals.

  3. Q: What is the voltage range supported by MC74ACT139DTR2G? A: MC74ACT139DTR2G supports a voltage range of 2.0V to 6.0V.

  4. Q: How many inputs does MC74ACT139DTR2G have? A: MC74ACT139DTR2G has two input pins, A and B, which are used to determine the output selection.

  5. Q: How many outputs does MC74ACT139DTR2G have? A: MC74ACT139DTR2G has four output pins, Y0, Y1, Y2, and Y3, which correspond to the four possible output selections.

  6. Q: Can MC74ACT139DTR2G be cascaded to increase the number of decoders? A: Yes, multiple MC74ACT139DTR2G ICs can be cascaded together to increase the number of decoders or demultiplexers.

  7. Q: What is the maximum operating frequency of MC74ACT139DTR2G? A: The maximum operating frequency of MC74ACT139DTR2G is typically around 100 MHz.

  8. Q: Is MC74ACT139DTR2G compatible with TTL logic levels? A: Yes, MC74ACT139DTR2G is compatible with both TTL and CMOS logic levels.

  9. Q: Can MC74ACT139DTR2G be used in both digital and analog applications? A: No, MC74ACT139DTR2G is specifically designed for digital applications and should not be used in analog circuits.

  10. Q: What are some common applications of MC74ACT139DTR2G? A: MC74ACT139DTR2G can be used in address decoding, data routing, memory selection, and other digital circuit designs.

Please note that the answers provided here are general and may vary depending on specific technical requirements and datasheet specifications.