ON Semiconductor
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MC1489DG
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MC1489DG

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: MC1489DG is a line driver/receiver IC used for converting TTL/CMOS logic levels to RS-232 voltage levels, enabling reliable long-distance data transmission.
  • Packaging/Quantity: Available in reels or tubes, with a quantity of 2500 units per reel/tube.

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 MC1489DG IC has a total of 14 pins arranged as follows:

___________ | | 1 | VCC | 14 2 | A1 | 13 3 | B1 | 12 4 | GND | 11 5 | C1 | 10 6 | D1 | 9 7 | A2 | 8 |___________|

Functional Features

  • Converts TTL/CMOS logic levels to RS-232 voltage levels.
  • Provides high-speed communication interface.
  • Suitable for long-distance data transmission.
  • Supports data rates up to 120 kbps.
  • Contains four independent driver/receiver channels.

Advantages

  • Enables reliable communication over long distances.
  • High-speed data transmission capability.
  • Easy integration with TTL/CMOS logic systems.
  • Compact and durable DIP package.

Disadvantages

  • Limited to RS-232 voltage level conversion.
  • Requires external power supply.
  • Not suitable for applications requiring higher data rates.

Working Principles

The MC1489DG IC works by converting the TTL/CMOS logic levels from the input signals into RS-232 voltage levels. It uses internal circuitry to amplify and shape the signals, ensuring reliable transmission over long distances. The converted RS-232 signals can then be transmitted through a serial communication interface.

Application Field Plans

The MC1489DG is commonly used in various applications that require reliable long-distance data transmission, such as:

  1. Industrial automation systems
  2. Telecommunications equipment
  3. Computer networking devices
  4. Data acquisition systems
  5. Embedded systems

Alternative Models

Here are some alternative models that provide similar functionality to the MC1489DG:

  1. MAX232 - Dual EIA-232 Driver/Receiver
  2. SN75176 - RS-485/RS-422 Transceiver
  3. LTC2874 - Quad RS-485/RS-422 Transceiver
  4. ADM3251E - Isolated RS-232 Line Driver/Receiver

These alternative models offer different features and specifications, allowing users to choose the most suitable option for their specific application requirements.

In conclusion, the MC1489DG is an integrated circuit line driver/receiver that converts TTL/CMOS logic levels to RS-232 voltage levels. It provides a high-speed communication interface and is suitable for long-distance data transmission. With its compact DIP package and reliable performance, it finds applications in various industries.

قم بإدراج 10 أسئلة وإجابات شائعة تتعلق بتطبيق MC1489DG في الحلول التقنية

Sure! Here are 10 common questions and answers related to the application of MC1489DG in technical solutions:

  1. Q: What is MC1489DG? A: MC1489DG is a quad line receiver IC (integrated circuit) commonly used for converting RS-232 voltage levels to TTL/CMOS logic levels.

  2. Q: What is the operating voltage range of MC1489DG? A: The operating voltage range of MC1489DG is typically between +4.5V and +5.5V.

  3. Q: Can MC1489DG be used for bidirectional communication? A: No, MC1489DG is a unidirectional line receiver and can only receive data from an RS-232 source.

  4. Q: What is the maximum data rate supported by MC1489DG? A: MC1489DG can support data rates up to 120 kbps (kilobits per second).

  5. Q: How many RS-232 inputs can MC1489DG handle? A: MC1489DG is a quad line receiver, meaning it can handle up to four RS-232 inputs simultaneously.

  6. Q: Does MC1489DG require external components for operation? A: Yes, MC1489DG requires external capacitors and resistors for proper operation. Refer to the datasheet for recommended values.

  7. Q: Can MC1489DG tolerate high-voltage spikes on the RS-232 lines? A: Yes, MC1489DG has built-in protection against high-voltage spikes on the RS-232 lines, ensuring the safety of the IC.

  8. Q: Is MC1489DG compatible with both TTL and CMOS logic levels? A: Yes, MC1489DG is compatible with both TTL and CMOS logic levels, making it versatile for various applications.

  9. Q: Can MC1489DG be used in industrial environments? A: Yes, MC1489DG is designed to operate reliably in industrial environments with its robust construction and noise immunity.

  10. Q: What package does MC1489DG come in? A: MC1489DG is available in a 14-pin dual in-line package (DIP) or a surface mount package (SOIC), providing flexibility for different PCB designs.

Please note that these answers are general and may vary depending on the specific application and implementation of MC1489DG. Always refer to the datasheet and consult with technical experts for accurate information.