ON Semiconductor
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DM74LS243N
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DM74LS243N

Product Overview

Category

DM74LS243N belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in digital electronics for various applications such as data multiplexing and signal routing.

Characteristics

  • High-speed operation
  • Low power consumption
  • Wide operating voltage range
  • Compatibility with TTL logic levels

Package

DM74LS243N is available in a 16-pin DIP (Dual Inline Package) format.

Essence

The essence of DM74LS243N lies in its ability to efficiently multiplex and route digital signals, making it an essential component in many electronic devices.

Packaging/Quantity

DM74LS243N is typically packaged in tubes or trays, with each package containing a specific quantity of ICs. The exact quantity may vary depending on the manufacturer and supplier.

Specifications

  • Supply Voltage: 4.75V to 5.25V
  • Operating Temperature Range: -40°C to +85°C
  • Input Voltage High Level (VIH): 2.0V min
  • Input Voltage Low Level (VIL): 0.8V max
  • Output Voltage High Level (VOH): 2.7V min
  • Output Voltage Low Level (VOL): 0.5V max
  • Propagation Delay Time: 9ns max

Detailed Pin Configuration

  1. A0: Multiplexer Input A0
  2. A1: Multiplexer Input A1
  3. A2: Multiplexer Input A2
  4. A3: Multiplexer Input A3
  5. B0: Multiplexer Input B0
  6. B1: Multiplexer Input B1
  7. B2: Multiplexer Input B2
  8. B3: Multiplexer Input B3
  9. GND: Ground
  10. Y0: Multiplexer Output Y0
  11. Y1: Multiplexer Output Y1
  12. Y2: Multiplexer Output Y2
  13. Y3: Multiplexer Output Y3
  14. VCC: Supply Voltage
  15. OE: Output Enable
  16. NC: No Connection

Functional Features

  • 4-to-1 data multiplexing
  • Active-low output enable (OE) for easy control of output state
  • High-speed operation allows for efficient signal routing
  • TTL-compatible inputs and outputs ensure compatibility with various digital systems

Advantages and Disadvantages

Advantages

  • High-speed operation enables efficient data multiplexing
  • Low power consumption helps in reducing overall energy usage
  • Wide operating voltage range provides flexibility in different applications
  • Compatibility with TTL logic levels ensures seamless integration with existing systems

Disadvantages

  • Limited to 4-to-1 data multiplexing, may not be suitable for larger-scale applications
  • Availability and pricing may vary depending on the supplier and market demand

Working Principles

DM74LS243N works by selecting one of the four input signals (A0-A3 or B0-B3) based on the control inputs (A/B) and routing it to the corresponding output (Y0-Y3). The output enable (OE) pin controls the output state, allowing the user to enable or disable the output as needed.

Detailed Application Field Plans

DM74LS243N finds applications in various fields, including: - Data communication systems - Digital multiplexers - Signal routing and switching circuits - Industrial automation - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to DM74LS243N are: - SN74LS153 - CD4051 - MC14051 - 74HC153

These alternative models offer similar functionality and can be used as replacements depending on the specific requirements of the application.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de DM74LS243N en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of DM74LS243N in technical solutions:

  1. Q: What is DM74LS243N? A: DM74LS243N is a quad bus transceiver with tri-state outputs, commonly used in digital logic circuits.

  2. Q: What is the purpose of DM74LS243N? A: The purpose of DM74LS243N is to enable bidirectional data transfer between two buses or systems.

  3. Q: What voltage levels does DM74LS243N support? A: DM74LS243N supports TTL (Transistor-Transistor Logic) voltage levels, typically operating at 5V.

  4. Q: How many channels does DM74LS243N have? A: DM74LS243N has four independent bidirectional channels.

  5. Q: Can DM74LS243N handle high-speed data transfer? A: Yes, DM74LS243N can handle high-speed data transfer up to its specified maximum frequency.

  6. Q: How do I connect DM74LS243N in my circuit? A: Connect the A and B buses to the corresponding inputs, and the Y and Z buses to the corresponding outputs. VCC and GND should be connected to the power supply.

  7. Q: Can I use DM74LS243N with other logic families like CMOS? A: Yes, DM74LS243N can be used with other logic families, but proper level shifting may be required due to different voltage levels.

  8. Q: What is the maximum current that DM74LS243N can source or sink? A: DM74LS243N can typically source or sink up to 8mA of current per output pin.

  9. Q: Can I use DM74LS243N for level shifting between different voltage domains? A: Yes, DM74LS243N can be used for level shifting, but additional circuitry may be required to ensure proper voltage translation.

  10. Q: Are there any precautions I should take while using DM74LS243N? A: It is important to avoid exceeding the maximum ratings specified in the datasheet, provide proper decoupling capacitors, and follow recommended operating conditions for reliable operation.

Please note that these answers are general and may vary depending on specific application requirements. Always refer to the datasheet and consult with an expert when designing your circuit.