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SN74ALS38BD
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SN74ALS38BD

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Logic Gate
  • Characteristics: Quad 2-input NAND buffer gate
  • Package: DIP-14 (Dual In-line Package with 14 pins)
  • Essence: Buffering and amplifying digital signals
  • Packaging/Quantity: Tube packaging, 25 pieces per tube

Specifications

  • Supply Voltage Range: 4.5V to 5.5V
  • Input Voltage Range: 0V to VCC
  • Output Voltage Range: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Propagation Delay Time: 9ns (typical)
  • High-Level Output Current: -0.4mA (max)
  • Low-Level Output Current: 8mA (max)

Detailed Pin Configuration

The SN74ALS38BD has a total of 14 pins arranged as follows:

  1. A1: Input A1
  2. B1: Input B1
  3. Y1: Output Y1
  4. GND: Ground
  5. Y2: Output Y2
  6. B2: Input B2
  7. A2: Input A2
  8. VCC: Power Supply
  9. Y3: Output Y3
  10. B3: Input B3
  11. A3: Input A3
  12. Y4: Output Y4
  13. B4: Input B4
  14. A4: Input A4

Functional Features

  • Quad 2-input NAND buffer gate
  • Provides buffering and amplification of digital signals
  • High noise immunity
  • Compatible with TTL (Transistor-Transistor Logic) inputs
  • Open-collector outputs for wired-OR applications
  • Schmitt-trigger input for improved noise rejection

Advantages and Disadvantages

Advantages: - High noise immunity ensures reliable signal transmission - Open-collector outputs allow for wired-OR applications - Schmitt-trigger input enhances noise rejection

Disadvantages: - Limited to 2-input NAND gate functionality - Not suitable for high-speed applications

Working Principles

The SN74ALS38BD is a quad 2-input NAND buffer gate. It takes two input signals, A and B, and produces the logical NAND of these inputs at the corresponding output pins Y1, Y2, Y3, and Y4. The device operates on a supply voltage range of 4.5V to 5.5V and provides high noise immunity due to its Schmitt-trigger input.

Detailed Application Field Plans

The SN74ALS38BD can be used in various digital logic applications, including but not limited to: - Data processing systems - Arithmetic circuits - Memory address decoding - Control systems - Clock distribution networks

Detailed and Complete Alternative Models

Some alternative models that provide similar functionality to the SN74ALS38BD are: - SN74LS00: Quad 2-input NAND gate - SN74HC00: Quad 2-input NAND gate with CMOS technology - SN74HCT00: Quad 2-input NAND gate with CMOS technology and TTL compatibility

These alternative models offer different characteristics and may be suitable for specific application requirements.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi SN74ALS38BD dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of SN74ALS38BD in technical solutions:

  1. Q: What is SN74ALS38BD? A: SN74ALS38BD is a quad 2-input NAND buffer/driver IC (integrated circuit) commonly used in digital logic applications.

  2. Q: What is the purpose of SN74ALS38BD? A: SN74ALS38BD is used to amplify and buffer digital signals, providing signal conditioning and driving capability for various electronic circuits.

  3. Q: What is the voltage supply range for SN74ALS38BD? A: SN74ALS38BD operates with a voltage supply range of 4.5V to 5.5V.

  4. Q: How many inputs does SN74ALS38BD have? A: SN74ALS38BD has four independent 2-input NAND gates, totaling eight input pins.

  5. Q: What is the maximum output current of SN74ALS38BD? A: The maximum output current per gate of SN74ALS38BD is typically 24mA.

  6. Q: Can SN74ALS38BD be used for level shifting? A: Yes, SN74ALS38BD can be used for level shifting by connecting its inputs and outputs to different voltage domains.

  7. Q: What is the propagation delay of SN74ALS38BD? A: The typical propagation delay of SN74ALS38BD is around 9ns.

  8. Q: Is SN74ALS38BD compatible with TTL (Transistor-Transistor Logic) inputs? A: Yes, SN74ALS38BD is compatible with TTL inputs, making it suitable for interfacing between TTL and CMOS (Complementary Metal-Oxide-Semiconductor) logic.

  9. Q: Can SN74ALS38BD be used in high-speed applications? A: Yes, SN74ALS38BD can be used in high-speed applications due to its fast propagation delay and compatibility with TTL inputs.

  10. Q: What is the package type of SN74ALS38BD? A: SN74ALS38BD is available in a 14-pin DIP (Dual In-line Package) or SOIC (Small Outline Integrated Circuit) package.

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