ON Semiconductor
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DM74ALS21AM
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DM74ALS21AM

Product Overview

Category

DM74ALS21AM belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronics applications for logic gate operations.

Characteristics

  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
  • Compact package size

Package

DM74ALS21AM is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of DM74ALS21AM lies in its ability to perform logical AND operations on two input signals.

Packaging/Quantity

DM74ALS21AM is typically sold in reels or tubes, with each reel or tube containing a specific quantity of ICs. The exact quantity may vary depending on the manufacturer and supplier.

Specifications

  • Supply Voltage: 4.5V to 5.5V
  • Input Voltage: 0V to VCC
  • Operating Temperature Range: -40°C to +85°C
  • Logic Family: ALS
  • Logic Type: AND Gate
  • Number of Inputs: 2
  • Number of Outputs: 1
  • Output Current: ±24mA

Detailed Pin Configuration

DM74ALS21AM has a total of 14 pins, which are assigned specific functions as follows:

  1. Pin 1: Input A
  2. Pin 2: Input B
  3. Pin 3: Ground (GND)
  4. Pin 4: Output Y
  5. Pin 5: Output Y
  6. Pin 6: Output Y
  7. Pin 7: Output Y
  8. Pin 8: VCC (Positive Power Supply)
  9. Pin 9: Output Y
  10. Pin 10: Output Y
  11. Pin 11: Output Y
  12. Pin 12: Output Y
  13. Pin 13: Output Y
  14. Pin 14: Output Y

Functional Features

  • Performs logical AND operation on two input signals (A and B)
  • Provides a single output signal (Y) based on the logical AND result
  • High-speed operation enables efficient processing of digital signals
  • Low power consumption makes it suitable for battery-powered devices
  • Wide operating voltage range allows compatibility with various systems

Advantages and Disadvantages

Advantages

  • High-speed operation enhances overall system performance
  • Low power consumption prolongs battery life in portable devices
  • Wide operating voltage range ensures compatibility with different systems

Disadvantages

  • Limited number of inputs and outputs restricts complex logic operations
  • Availability may vary depending on the supplier and market demand

Working Principles

DM74ALS21AM operates based on the principles of Boolean logic. It performs a logical AND operation on the input signals A and B. The output Y is determined by the logical AND result, where Y = A AND B.

Detailed Application Field Plans

DM74ALS21AM finds applications in various digital electronic systems, including but not limited to: - Microprocessors and microcontrollers - Data communication systems - Industrial automation - Robotics - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that can be used as substitutes for DM74ALS21AM include: - SN74ALS21N - MC74ALS21N - CD74ALS21E - HD74ALS21P

These alternative models offer similar functionality and can be used interchangeably in most applications.

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רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של DM74ALS21AM בפתרונות טכניים

Sure! Here are 10 common questions and answers related to the application of DM74ALS21AM in technical solutions:

  1. Q: What is DM74ALS21AM? A: DM74ALS21AM is a specific type of integrated circuit (IC) that belongs to the ALS series of logic gates.

  2. Q: What is the function of DM74ALS21AM? A: DM74ALS21AM is a dual 4-input AND gate, which means it performs logical AND operations on four input signals.

  3. Q: What voltage levels does DM74ALS21AM support? A: DM74ALS21AM operates with TTL (Transistor-Transistor Logic) voltage levels, typically between 0V and 5V.

  4. Q: How many inputs does DM74ALS21AM have? A: DM74ALS21AM has four inputs, labeled A, B, C, and D.

  5. Q: What is the output configuration of DM74ALS21AM? A: DM74ALS21AM has two identical AND gate outputs, labeled Y1 and Y2.

  6. Q: Can DM74ALS21AM be used for both positive and negative logic applications? A: Yes, DM74ALS21AM can be used for both positive and negative logic applications, depending on the input signal polarities.

  7. Q: What is the maximum frequency at which DM74ALS21AM can operate? A: The maximum operating frequency of DM74ALS21AM is typically around 25 MHz.

  8. Q: Can DM74ALS21AM drive other TTL devices directly? A: Yes, DM74ALS21AM can drive other TTL devices directly as it has standard TTL-compatible outputs.

  9. Q: Is DM74ALS21AM suitable for high-speed digital applications? A: Yes, DM74ALS21AM is commonly used in high-speed digital applications due to its fast propagation delay and short rise/fall times.

  10. Q: What are some typical applications of DM74ALS21AM? A: DM74ALS21AM can be used in various applications such as data processing, arithmetic circuits, memory address decoding, and control systems.

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