ON Semiconductor
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MC1489MEL
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MC1489MEL

Product Overview

  • Category: Integrated Circuit
  • Use: Signal Line Receiver
  • Characteristics: High-speed, Low-power, Quad RS-232 Line Receiver
  • Package: SOIC-14
  • Essence: The MC1489MEL is a quad RS-232 line receiver designed for high-speed communication applications. It is commonly used in serial communication systems to receive and process data signals from RS-232 compatible devices.
  • Packaging/Quantity: The MC1489MEL is available in a small outline integrated circuit (SOIC) package with 14 pins.

Specifications

  • Supply Voltage: +5V
  • Input Voltage Range: -30V to +30V
  • Operating Temperature Range: -40°C to +85°C
  • Data Rate: Up to 120 kbps
  • Number of Channels: 4

Detailed Pin Configuration

The MC1489MEL has a total of 14 pins arranged 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. 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

Functional Features

  • High-speed data reception and processing
  • Low-power consumption
  • Wide input voltage range
  • ESD protection on all inputs and outputs
  • Compatible with RS-232 standard

Advantages and Disadvantages

Advantages

  • High-speed operation allows for efficient data transfer
  • Low-power consumption helps in reducing energy usage
  • Wide input voltage range ensures compatibility with various devices
  • ESD protection safeguards against electrostatic discharge damage
  • Quad-channel design provides flexibility in system integration

Disadvantages

  • Limited to RS-232 communication standard, not compatible with other standards
  • Requires external components for complete RS-232 interface implementation

Working Principles

The MC1489MEL operates by receiving RS-232 data signals through its input channels (A, B, C, and D). These signals are then processed and converted into logic-level outputs (Y, Z, AA, and BB) suitable for further processing by the connected system. The integrated circuit is designed to handle high-speed data rates while consuming minimal power.

Detailed Application Field Plans

The MC1489MEL finds applications in various fields where RS-232 communication is required. Some of the common application areas include:

  1. Industrial Automation: Used in PLCs (Programmable Logic Controllers), SCADA systems, and industrial control equipment.
  2. Telecommunications: Employed in modems, routers, and communication interfaces.
  3. Computer Peripherals: Integrated into serial ports, USB-to-serial converters, and data acquisition systems.
  4. Consumer Electronics: Utilized in set-top boxes, gaming consoles, and home automation systems.

Detailed and Complete Alternative Models

  1. MAX1489E - Maxim Integrated
  2. SN75189 - Texas Instruments
  3. LTC1489 - Linear Technology
  4. ST1489 - STMicroelectronics
  5. HIN232 - Renesas Electronics

These alternative models offer similar functionality and can be used as replacements for the MC1489MEL in various applications.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací MC1489MEL v technických řešeních

Sure! Here are 10 common questions and answers related to the application of MC1489MEL in technical solutions:

  1. Q: What is MC1489MEL? A: MC1489MEL is a quad line receiver IC (integrated circuit) commonly used for converting RS-232 signals into TTL/CMOS logic levels.

  2. Q: What are the typical applications of MC1489MEL? A: MC1489MEL is often used in serial communication systems, such as connecting microcontrollers or other digital devices to RS-232 interfaces.

  3. Q: What voltage levels does MC1489MEL support? A: MC1489MEL supports a wide range of input voltages from -30V to +30V, making it compatible with various RS-232 signal levels.

  4. Q: How many channels does MC1489MEL have? A: MC1489MEL is a quad line receiver, meaning it has four independent channels that can receive RS-232 signals.

  5. Q: Can MC1489MEL be used for both full-duplex and half-duplex communication? A: Yes, MC1489MEL can be used for both full-duplex and half-duplex communication, depending on the system requirements.

  6. Q: Does MC1489MEL require external components for operation? A: Yes, MC1489MEL requires external capacitors and resistors for proper operation, as specified in its datasheet.

  7. Q: What is the maximum data rate supported by MC1489MEL? A: The maximum data rate supported by MC1489MEL is typically around 120 kbps, but it may vary depending on the specific application.

  8. Q: Can MC1489MEL handle long-distance communication? A: MC1489MEL is not specifically designed for long-distance communication, but it can be used with appropriate line drivers to extend the range.

  9. Q: Is MC1489MEL compatible with both TTL and CMOS logic levels? A: Yes, MC1489MEL is compatible with both TTL (Transistor-Transistor Logic) and CMOS (Complementary Metal-Oxide-Semiconductor) logic levels.

  10. Q: Are there any alternative ICs to MC1489MEL for RS-232 signal conversion? A: Yes, there are several alternative ICs available, such as MAX232, MAX3232, or ADM3202, which offer similar functionality for RS-232 conversion.

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