ON Semiconductor
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MC1489ADG
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MC1489ADG

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: RS-232 Line Driver/Receiver
  • Characteristics:
    • High-speed communication interface
    • Converts TTL/CMOS logic levels to RS-232 voltage levels
    • Suitable for long-distance data transmission
  • Package: Dual-In-Line 14-pin package (DIP)
  • Essence: The MC1489ADG is a line driver/receiver IC that enables the conversion of TTL/CMOS logic levels to RS-232 voltage levels, facilitating reliable long-distance data transmission.
  • Packaging/Quantity: Available in tubes or reels, with 25 units per tube/reel.

Specifications

  • Supply Voltage Range: +4.5V to +5.5V
  • Operating Temperature Range: -40°C to +85°C
  • Data Rate: Up to 120 kbps
  • Number of Channels: 4
  • Input Logic Compatibility: TTL/CMOS
  • Output Logic Compatibility: RS-232
  • Package Type: DIP-14

Pin Configuration

The MC1489ADG has a total of 14 pins, which are assigned as follows:

  1. VCC - Positive power supply
  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. W - Channel C output
  10. X - Channel D output
  11. NC - No connection
  12. NC - No connection
  13. NC - No connection
  14. NC - No connection

Functional Features

  • Converts TTL/CMOS logic levels to RS-232 voltage levels
  • Provides high-speed communication interface
  • Supports long-distance data transmission
  • Enables reliable data reception and transmission

Advantages and Disadvantages

Advantages: - High-speed communication interface - Suitable for long-distance data transmission - Easy integration with TTL/CMOS logic systems

Disadvantages: - Limited to 4 channels - Requires external power supply

Working Principles

The MC1489ADG operates by converting the low-voltage TTL/CMOS logic levels to higher RS-232 voltage levels. It uses internal circuitry to amplify and shape the input signals, ensuring reliable data transmission over long distances. The IC also provides protection against voltage spikes and noise commonly encountered in RS-232 communication.

Application Field Plans

The MC1489ADG is widely used in various applications that require reliable RS-232 communication. Some of the common application fields include:

  1. Industrial automation systems
  2. Telecommunication equipment
  3. Data acquisition systems
  4. Embedded systems
  5. Robotics
  6. Test and measurement instruments

Alternative Models

Here are some alternative models that can be considered as alternatives to the MC1489ADG:

  1. MAX232 - Dual EIA-232 Driver/Receiver
  2. SN75176 - RS-485/RS-422 Transceiver
  3. LTC2874 - Quad RS-485/RS-422 Transceiver
  4. ADM3202 - Low Power RS-232 Line Driver/Receiver

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

In conclusion, the MC1489ADG is a versatile RS-232 line driver/receiver IC that enables the conversion of TTL/CMOS logic levels to RS-232 voltage levels. With its high-speed communication interface and suitability for long-distance data transmission, it finds applications in various industries such as industrial automation, telecommunications, and embedded systems.

Liste 10 almindelige spørgsmål og svar relateret til anvendelsen af MC1489ADG i tekniske løsninger

Sure! Here are 10 common questions and answers related to the application of MC1489ADG in technical solutions:

  1. Q: What is MC1489ADG? A: MC1489ADG is a quad line receiver IC (integrated circuit) commonly used for converting RS-232 signals into TTL/CMOS logic levels.

  2. Q: What is the operating voltage range of MC1489ADG? A: The operating voltage range of MC1489ADG is typically between +4.5V and +5.5V.

  3. Q: How many channels does MC1489ADG have? A: MC1489ADG has four independent channels, allowing it to receive data from up to four different RS-232 lines.

  4. Q: Can MC1489ADG be used for bidirectional communication? A: No, MC1489ADG is a unidirectional receiver IC and can only receive data from RS-232 lines.

  5. Q: What is the maximum data rate supported by MC1489ADG? A: MC1489ADG supports data rates up to 120 kbps (kilobits per second).

  6. Q: Does MC1489ADG require external components for operation? A: Yes, MC1489ADG requires external capacitors and resistors for proper operation. Refer to the datasheet for recommended values.

  7. Q: Can MC1489ADG tolerate high-voltage transients on the RS-232 lines? A: Yes, MC1489ADG has built-in protection against high-voltage transients up to ±15V on the RS-232 lines.

  8. Q: Is MC1489ADG compatible with both TTL and CMOS logic levels? A: Yes, MC1489ADG is compatible with both TTL and CMOS logic levels, making it versatile for various applications.

  9. Q: Can MC1489ADG be used in industrial environments? A: Yes, MC1489ADG is designed to operate reliably in industrial environments with its robust construction and ESD protection.

  10. Q: What are some common applications of MC1489ADG? A: MC1489ADG is commonly used in applications such as serial communication interfaces, data acquisition systems, and industrial automation where RS-232 signals need to be converted to TTL/CMOS logic levels.

Please note that these answers are general and may vary depending on specific application requirements. Always refer to the datasheet and consult with an engineer for accurate information.