Texas Instruments
Obraz może przedstawiać obraz.
Szczegóły produktu można znaleźć w specyfikacjach.
SN74ALS280DRE4
Pokaż szczegóły Arkusze danych

SN74ALS280DRE4

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Arithmetic Logic Unit (ALU)
  • Characteristics: High-speed, low-power consumption
  • Package: SOIC-14
  • Essence: 9-bit magnitude comparator
  • Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 4.5V to 5.5V
  • Operating Temperature Range: -40°C to 85°C
  • Input Current: ±1mA
  • Output Current: ±8mA
  • Propagation Delay Time: 10ns (typical)
  • Power Dissipation: 500mW (max)

Detailed Pin Configuration

The SN74ALS280DRE4 has a total of 14 pins, which are labeled as follows:

  1. A0: Input A, bit 0
  2. A1: Input A, bit 1
  3. A2: Input A, bit 2
  4. B0: Input B, bit 0
  5. B1: Input B, bit 1
  6. B2: Input B, bit 2
  7. GND: Ground
  8. LT: Less Than output
  9. EQ: Equal output
  10. GT: Greater Than output
  11. VCC: Positive power supply
  12. A3: Input A, bit 3
  13. B3: Input B, bit 3
  14. NC: No Connection

Functional Features

The SN74ALS280DRE4 is a 9-bit magnitude comparator that compares two 9-bit binary numbers (A and B) and provides three outputs: LT (Less Than), EQ (Equal), and GT (Greater Than). It operates at high speed while consuming low power, making it suitable for various applications.

Advantages and Disadvantages

Advantages: - High-speed operation - Low power consumption - Compact SOIC-14 package - Wide supply voltage range

Disadvantages: - Limited to 9-bit comparison - No built-in error detection or correction

Working Principles

The SN74ALS280DRE4 compares the binary inputs A and B bit by bit, starting from the most significant bit (MSB) down to the least significant bit (LSB). It determines whether A is less than, equal to, or greater than B based on the comparison results at each bit position. The outputs LT, EQ, and GT indicate the result of the comparison.

Detailed Application Field Plans

The SN74ALS280DRE4 can be used in various applications that require binary number comparison, such as: - Digital signal processing - Microcontrollers - Data encryption systems - Arithmetic operations in computer systems

Detailed and Complete Alternative Models

  1. SN74ALS281DRE4: 10-bit magnitude comparator with similar features and pin configuration.
  2. SN74ALS282DRE4: 11-bit magnitude comparator with similar features and pin configuration.
  3. SN74ALS283DRE4: 12-bit magnitude comparator with similar features and pin configuration.
  4. SN74ALS284DRE4: 13-bit magnitude comparator with similar features and pin configuration.
  5. SN74ALS285DRE4: 14-bit magnitude comparator with similar features and pin configuration.

These alternative models provide increased bit capacity for larger binary number comparisons while maintaining compatibility with the SN74ALS280DRE4 in terms of functionality and pin configuration.

In conclusion, the SN74ALS280DRE4 is a high-speed, low-power 9-bit magnitude comparator IC. It is commonly used in various applications that involve binary number comparison. Its compact package and wide supply voltage range make it suitable for integration into different electronic systems.

Wymień 10 typowych pytań i odpowiedzi związanych z zastosowaniem SN74ALS280DRE4 w rozwiązaniach technicznych

Sure! Here are 10 common questions and answers related to the application of SN74ALS280DRE4 in technical solutions:

  1. Q: What is SN74ALS280DRE4? A: SN74ALS280DRE4 is a 9-bit magnitude comparator integrated circuit (IC) that compares two 9-bit binary numbers and determines their relationship.

  2. Q: What are the key features of SN74ALS280DRE4? A: Some key features of SN74ALS280DRE4 include low power consumption, wide operating voltage range, fast propagation delay, and compatibility with TTL logic levels.

  3. Q: How does SN74ALS280DRE4 work? A: SN74ALS280DRE4 compares the two 9-bit binary numbers by examining each bit from most significant to least significant. It generates various output signals indicating the relationship between the two numbers, such as equality, greater than, or less than.

  4. Q: What are the typical applications of SN74ALS280DRE4? A: SN74ALS280DRE4 is commonly used in digital systems where comparison of two 9-bit numbers is required, such as in arithmetic operations, data sorting, and control circuits.

  5. Q: What is the operating voltage range for SN74ALS280DRE4? A: SN74ALS280DRE4 operates within a voltage range of 4.5V to 5.5V.

  6. Q: What is the maximum clock frequency supported by SN74ALS280DRE4? A: SN74ALS280DRE4 can operate at a maximum clock frequency of 40 MHz.

  7. Q: Does SN74ALS280DRE4 have any built-in error detection or correction mechanisms? A: No, SN74ALS280DRE4 does not have any built-in error detection or correction mechanisms. It solely performs the comparison of two 9-bit numbers.

  8. Q: Can SN74ALS280DRE4 be cascaded to compare larger numbers? A: Yes, multiple SN74ALS280DRE4 ICs can be cascaded together to compare larger numbers by connecting the outputs of one comparator to the inputs of another.

  9. Q: What is the power consumption of SN74ALS280DRE4? A: The power consumption of SN74ALS280DRE4 is relatively low, typically around a few milliwatts.

  10. Q: Is SN74ALS280DRE4 compatible with other logic families? A: Yes, SN74ALS280DRE4 is compatible with TTL (Transistor-Transistor Logic) logic levels, making it suitable for interfacing with various other logic families.

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