Texas Instruments
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SN74AS280DR
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SN74AS280DR

Product Overview

Category

SN74AS280DR belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in digital logic applications for arithmetic operations, specifically for parity checking.

Characteristics

  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
  • Robustness against noise and interference

Package

SN74AS280DR is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of SN74AS280DR lies in its ability to perform efficient parity checking in digital systems.

Packaging/Quantity

SN74AS280DR is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

  • Supply Voltage: 4.5V to 5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Logic Family: AS
  • Number of Pins: 14
  • Logic Type: Parity Generator/Checker

Detailed Pin Configuration

  1. A0: Input A0
  2. A1: Input A1
  3. A2: Input A2
  4. A3: Input A3
  5. A4: Input A4
  6. A5: Input A5
  7. GND: Ground
  8. ODD/EVEN: Output (Odd/Even Parity)
  9. P0: Input P0
  10. P1: Input P1
  11. P2: Input P2
  12. P3: Input P3
  13. VCC: Power Supply
  14. NC: No Connection

Functional Features

SN74AS280DR is designed to generate or check parity in digital systems. It can operate on 8-bit data inputs (A0-A5, P0-P3) and provides an output indicating whether the input data has odd or even parity. The ODD/EVEN pin serves as the output for this purpose.

Advantages and Disadvantages

Advantages

  • High-speed operation enables efficient parity checking in real-time applications.
  • Low power consumption makes it suitable for battery-powered devices.
  • Wide operating voltage range allows compatibility with various systems.
  • Robustness against noise and interference ensures reliable performance.

Disadvantages

  • Limited to 8-bit data inputs, which may not be sufficient for certain applications requiring larger data sizes.
  • Availability of alternative models with additional features may limit its competitiveness in some scenarios.

Working Principles

SN74AS280DR operates based on the principles of digital logic circuits. It utilizes a combination of logic gates to generate or check parity. By analyzing the input data bits, it determines whether the number of high (logic 1) bits is odd or even, and provides the corresponding output on the ODD/EVEN pin.

Detailed Application Field Plans

SN74AS280DR finds application in various fields where parity checking is required. Some specific areas of application include: - Data communication systems - Error detection and correction mechanisms - Memory systems - Network devices - Security systems

Detailed and Complete Alternative Models

While SN74AS280DR is a reliable choice for parity generation/checking, there are alternative models available that offer additional features or different specifications. Some notable alternatives include: - SN74LS280: Similar functionality but operates at a lower speed. - SN74HC280: Compatible with higher voltage levels and offers improved noise immunity. - SN74F280: Faster operation and wider temperature range, suitable for demanding applications.

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Énumérez 10 questions et réponses courantes liées à l'application de SN74AS280DR dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of SN74AS280DR in technical solutions:

  1. Q: What is SN74AS280DR? A: SN74AS280DR is a specific model of a 9-bit parity generator/checker integrated circuit (IC) manufactured by Texas Instruments.

  2. Q: What is the purpose of a parity generator/checker? A: A parity generator/checker is used to detect errors in data transmission by adding or checking parity bits.

  3. Q: What is the operating voltage range for SN74AS280DR? A: The operating voltage range for SN74AS280DR is typically between 4.5V and 5.5V.

  4. Q: How many inputs does SN74AS280DR have? A: SN74AS280DR has nine inputs labeled A0 to A8, which are used to input the data bits.

  5. Q: How many outputs does SN74AS280DR have? A: SN74AS280DR has two outputs, one for the generated parity bit (PG) and another for the checked parity bit (PC).

  6. Q: What is the maximum clock frequency supported by SN74AS280DR? A: SN74AS280DR can operate at a maximum clock frequency of 40 MHz.

  7. Q: Can SN74AS280DR be used for both even and odd parity generation/checking? A: Yes, SN74AS280DR supports both even and odd parity generation/checking based on the configuration of its inputs.

  8. Q: What is the typical power consumption of SN74AS280DR? A: The typical power consumption of SN74AS280DR is around 20mW.

  9. Q: Can SN74AS280DR be cascaded to handle larger data widths? A: Yes, multiple SN74AS280DR ICs can be cascaded together to handle larger data widths by connecting the PG output of one IC to the A9 input of the next IC.

  10. Q: What are some common applications of SN74AS280DR? A: SN74AS280DR is commonly used in various digital systems, such as communication devices, memory systems, and error detection/correction circuits, where data integrity is crucial.

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