ON Semiconductor
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MC1489ADR2
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MC1489ADR2

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: RS-232 Line Driver/Receiver
  • Characteristics:
    • High-speed communication interface
    • Low power consumption
    • Wide operating voltage range
    • Robust ESD protection
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: Line driver/receiver for RS-232 communication
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: +4.5V to +5.5V
  • Data Rate: Up to 120 kbps
  • Number of Channels: 4
  • Operating Temperature Range: -40°C to +85°C
  • Input Threshold Voltage: ±30V
  • Output Voltage Swing: ±7V
  • Quiescent Current: 8 mA (typical)

Detailed Pin Configuration

The MC1489ADR2 IC has a total of 16 pins. The pin configuration is as follows:

  1. VCC - Positive supply voltage
  2. A - Channel A input
  3. B - Channel B input
  4. C - Channel C input
  5. D - Channel D input
  6. GND - Ground
  7. Y - Channel A output
  8. Z - Channel B output
  9. AA - Channel C output
  10. BB - Channel D output
  11. NC - No connection
  12. NC - No connection
  13. NC - No connection
  14. NC - No connection
  15. NC - No connection
  16. NC - No connection

Functional Features

  • Converts TTL/CMOS logic levels to RS-232 voltage levels and vice versa
  • Provides ESD protection for robust communication
  • Supports full-duplex communication
  • Enables reliable long-distance data transmission
  • Low power consumption for energy-efficient operation

Advantages and Disadvantages

Advantages: - High-speed communication interface - Wide operating voltage range - Robust ESD protection - Supports multiple channels for simultaneous data transmission

Disadvantages: - Limited data rate compared to newer ICs - Requires external components for complete RS-232 interface implementation

Working Principles

The MC1489ADR2 is a line driver/receiver IC designed for RS-232 communication. It operates by converting TTL/CMOS logic levels to RS-232 voltage levels, allowing reliable data transmission over long distances. The IC provides ESD protection to ensure robust communication and supports full-duplex communication.

Detailed Application Field Plans

The MC1489ADR2 is commonly used in various applications that require RS-232 communication, such as:

  1. Industrial automation systems
  2. Telecommunication equipment
  3. Data acquisition systems
  4. Point-of-sale terminals
  5. Networking devices
  6. Medical equipment
  7. Security systems

Detailed and Complete Alternative Models

  1. MAX232 - RS-232 Line Driver/Receiver IC
  2. MAX3232 - True RS-232 Transceiver IC
  3. SP3232 - RS-232 Transceiver IC with AutoShutdown Plus
  4. MAX485 - RS-485/RS-422 Transceiver IC
  5. SN75176 - RS-485/RS-422 Transceiver IC

These alternative models offer similar functionality and can be used as substitutes for the MC1489ADR2 in various applications.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de MC1489ADR2 en soluciones técnicas

Sure! Here are 10 common questions and answers related to the application of MC1489ADR2 in technical solutions:

  1. Question: What is MC1489ADR2?
    - Answer: MC1489ADR2 is a quad line receiver IC (integrated circuit) commonly used for converting RS-232 signals into TTL/CMOS logic levels.

  2. Question: What is the operating voltage range of MC1489ADR2?
    - Answer: The operating voltage range of MC1489ADR2 is typically between 4.5V and 5.5V.

  3. Question: Can MC1489ADR2 be used for bidirectional communication?
    - Answer: No, MC1489ADR2 is a unidirectional line receiver and can only receive data from an RS-232 source.

  4. Question: What is the maximum data rate supported by MC1489ADR2?
    - Answer: MC1489ADR2 supports data rates up to 120 kbps (kilobits per second).

  5. Question: How many RS-232 inputs can MC1489ADR2 handle?
    - Answer: MC1489ADR2 is a quad line receiver, meaning it can handle up to four RS-232 inputs simultaneously.

  6. Question: Does MC1489ADR2 require external components for operation?
    - Answer: Yes, MC1489ADR2 requires external capacitors and resistors for proper operation. Refer to the datasheet for recommended values.

  7. Question: Can MC1489ADR2 tolerate high voltage levels on its inputs?
    - Answer: Yes, MC1489ADR2 has built-in protection diodes that allow it to tolerate input voltages up to ±30V.

  8. Question: Is MC1489ADR2 suitable for industrial applications?
    - Answer: Yes, MC1489ADR2 is commonly used in industrial applications due to its robustness and ability to handle harsh environments.

  9. Question: Can MC1489ADR2 be used with microcontrollers?
    - Answer: Yes, MC1489ADR2 can be interfaced with microcontrollers that operate at TTL/CMOS logic levels.

  10. Question: Are there any alternative ICs to MC1489ADR2 for RS-232 to TTL conversion?
    - Answer: Yes, some alternative ICs include MAX232, MAX3232, and SP3232, which offer similar functionality.

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 technical solutions.