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74HC147DB,118
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74HC147DB,118

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Encoder/Decoder
  • Characteristics: High-speed operation, low power consumption
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: A high-performance encoder/decoder IC
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 2V to 6V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Logic Family: HC (High-Speed CMOS)

Detailed Pin Configuration

The 74HC147DB,118 IC has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | A0 | Address input bit 0 | | 2 | A1 | Address input bit 1 | | 3 | A2 | Address input bit 2 | | 4 | A3 | Address input bit 3 | | 5 | A4 | Address input bit 4 | | 6 | A5 | Address input bit 5 | | 7 | GND | Ground | | 8 | BCD | Binary Coded Decimal (BCD) output | | 9 | LT | Lamp Test input | | 10 | BI | Blanking input | | 11 | RBI | Ripple Blanking input | | 12 | EO | Enable Output | | 13 | E1 | Enable input 1 | | 14 | E2 | Enable input 2 | | 15 | E3 | Enable input 3 | | 16 | VCC | Supply Voltage |

Functional Features

  • The 74HC147DB,118 is a 10-line to 4-line priority encoder/decoder.
  • It encodes 10 lines of binary input into a 4-line BCD output.
  • The IC can also decode a 4-line BCD input into a 10-line output.
  • It features priority encoding, where the highest order input has priority over lower order inputs.

Advantages and Disadvantages

Advantages: - High-speed operation allows for efficient data processing. - Low power consumption makes it suitable for battery-powered devices. - Compact SOIC package enables space-saving on PCBs.

Disadvantages: - Limited number of input/output lines restricts its application in complex systems. - Requires external components for proper functionality.

Working Principles

The 74HC147DB,118 operates based on the priority encoding principle. It assigns priority to the highest order input line that is active (logic high). The active input line is encoded into a binary code and presented as the output. In decoder mode, the BCD input is decoded into a 10-line output.

Detailed Application Field Plans

The 74HC147DB,118 finds applications in various fields, including: 1. Data transmission systems 2. Address decoding in microcontrollers 3. Multiplexing and demultiplexing circuits 4. Industrial automation 5. Communication equipment

Detailed and Complete Alternative Models

Some alternative models to the 74HC147DB,118 IC are: 1. 74LS147: A TTL (Transistor-Transistor Logic) version of the encoder/decoder IC. 2. CD4028: A CMOS BCD-to-decimal decoder with similar functionality. 3. SN74LS148: A priority encoder with 8-line to 3-line encoding.

Note: The above alternatives may have different pin configurations and specifications.

تکنیکی حل میں 74HC147DB,118 کے اطلاق سے متعلق 10 عام سوالات اور جوابات کی فہرست بنائیں

Sure! Here are 10 common questions and answers related to the application of 74HC147DB,118 in technical solutions:

  1. Q: What is the 74HC147DB,118? A: The 74HC147DB,118 is a high-speed CMOS 10-to-4 line priority encoder IC.

  2. Q: What is the purpose of a priority encoder? A: A priority encoder is used to encode multiple inputs into a binary code, prioritizing the highest order active input.

  3. Q: How many inputs does the 74HC147DB,118 have? A: The 74HC147DB,118 has 10 inputs (A0-A9) that can be encoded.

  4. Q: What is the output format of the 74HC147DB,118? A: The 74HC147DB,118 provides a 4-bit binary output (Y0-Y3) representing the highest priority active input.

  5. Q: What is the maximum operating voltage for the 74HC147DB,118? A: The 74HC147DB,118 operates at a maximum voltage of 6 volts.

  6. Q: Can the 74HC147DB,118 handle both active-high and active-low inputs? A: No, the 74HC147DB,118 only supports active-high inputs.

  7. Q: What is the typical propagation delay of the 74HC147DB,118? A: The typical propagation delay is around 15 ns.

  8. Q: Can the 74HC147DB,118 be cascaded to encode more than 10 inputs? A: Yes, multiple 74HC147DB,118 ICs can be cascaded together to encode more than 10 inputs.

  9. Q: What is the power supply voltage range for the 74HC147DB,118? A: The power supply voltage range is typically between 2 volts and 6 volts.

  10. Q: Can the 74HC147DB,118 be used in both digital and analog applications? A: No, the 74HC147DB,118 is specifically designed for digital applications and should not be used in analog circuits.

Please note that these answers are general and may vary depending on specific datasheet specifications or application requirements.