Texas Instruments
画像はイメージの場合もございます。
商品詳細は仕様をご覧ください。
SN74LS155ADG4
詳細を表示 DataSheets

SN74LS155ADG4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Decoder/Demultiplexer
  • Characteristics: TTL Logic, Dual 2-Line to 4-Line Decoder/Demultiplexer
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: High-speed, low-power consumption decoder/demultiplexer
  • Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

  • Supply Voltage Range: 4.75V to 5.25V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay Time: 15ns (typical)
  • Maximum Operating Frequency: 33MHz

Detailed Pin Configuration

The SN74LS155ADG4 has a total of 16 pins. The pin configuration is as follows:

  1. GND (Ground)
  2. A0 (Address Input 0)
  3. A1 (Address Input 1)
  4. E1 (Enable Input 1)
  5. Y0 (Output 0)
  6. Y1 (Output 1)
  7. Y2 (Output 2)
  8. Y3 (Output 3)
  9. E2 (Enable Input 2)
  10. B0 (Address Input 0)
  11. B1 (Address Input 1)
  12. E3 (Enable Input 3)
  13. Y4 (Output 4)
  14. Y5 (Output 5)
  15. Y6 (Output 6)
  16. Y7 (Output 7)

Functional Features

The SN74LS155ADG4 is a dual 2-line to 4-line decoder/demultiplexer IC. It takes two input lines (A0 and A1) to select one of the four outputs (Y0 to Y3) when enabled by the corresponding enable input (E1 or E2). The IC also has an additional enable input (E3) that can be used to disable all the outputs.

Advantages and Disadvantages

Advantages: - High-speed operation - Low-power consumption - Compact SOIC package - Wide operating temperature range

Disadvantages: - Limited number of output lines (4) - Requires external components for complete functionality

Working Principles

The SN74LS155ADG4 works based on the principles of digital logic. It uses a combination of address inputs and enable inputs to select and activate specific output lines. When the appropriate address and enable inputs are provided, the selected output line becomes active, while the remaining outputs remain inactive.

Detailed Application Field Plans

The SN74LS155ADG4 is commonly used in various applications, including: - Multiplexing and demultiplexing data signals - Address decoding in microprocessors and microcontrollers - Data routing and selection in digital systems - Control signal generation in communication systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the SN74LS155ADG4 include: - 74HC155: CMOS Logic Dual 2-Line to 4-Line Decoder/Demultiplexer - CD4514: CMOS Logic 4-Bit Latch/4-to-16 Line Decoder - 74F138: TTL Logic 3-to-8 Line Decoder/Demultiplexer

These alternative models may have different specifications, pin configurations, and package options, but they serve similar purposes as the SN74LS155ADG4.

Word count: 314 words

技術ソリューションにおける SN74LS155ADG4 の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of SN74LS155ADG4:

  1. Q: What is SN74LS155ADG4? A: SN74LS155ADG4 is a dual 2-line to 4-line decoder/demultiplexer integrated circuit (IC) commonly used in digital electronics.

  2. Q: What is the purpose of SN74LS155ADG4? A: SN74LS155ADG4 is used to decode binary information from two input lines into four output lines, making it useful for various applications such as address decoding, data routing, and signal demultiplexing.

  3. Q: What is the voltage supply range for SN74LS155ADG4? A: The voltage supply range for SN74LS155ADG4 is typically between 4.75V and 5.25V.

  4. Q: How many input lines does SN74LS155ADG4 have? A: SN74LS155ADG4 has two input lines labeled A0 and A1.

  5. Q: How many output lines does SN74LS155ADG4 have? A: SN74LS155ADG4 has four output lines labeled Y0, Y1, Y2, and Y3.

  6. Q: Can SN74LS155ADG4 be cascaded to increase the number of output lines? A: Yes, multiple SN74LS155ADG4 ICs can be cascaded together to increase the number of output lines by connecting the enable (E) pin of each IC to the output of the previous IC.

  7. Q: What is the maximum operating frequency of SN74LS155ADG4? A: The maximum operating frequency of SN74LS155ADG4 is typically around 33 MHz.

  8. Q: What is the power consumption of SN74LS155ADG4? A: The power consumption of SN74LS155ADG4 is relatively low, typically around 10-20 mW.

  9. Q: Can SN74LS155ADG4 be used in both TTL and CMOS logic systems? A: Yes, SN74LS155ADG4 is compatible with both TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic systems.

  10. Q: Are there any specific precautions to consider when using SN74LS155ADG4? A: It is important to ensure that the voltage supply range is within the specified limits, and proper decoupling capacitors should be used to minimize noise and voltage spikes. Additionally, care should be taken to avoid exceeding the maximum operating frequency to maintain reliable operation.