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DS1487M
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DS1487M

Product Overview

  • Category: Integrated Circuit
  • Use: Communication Interface
  • Characteristics: High-speed, Low-power
  • Package: SOIC (Small Outline Integrated Circuit)
  • Essence: RS-485/RS-422 Transceiver
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Supply Voltage Range: 4.75V to 5.25V
  • Data Rate: Up to 10 Mbps
  • Operating Temperature Range: -40°C to +85°C
  • Number of Pins: 8
  • Pin Pitch: 1.27mm

Detailed Pin Configuration

  1. A (Non-Inverting Driver Output)
  2. B (Inverting Driver Output)
  3. Y (Receiver Output)
  4. Z (Receiver Output Enable)
  5. GND (Ground)
  6. VCC (Supply Voltage)
  7. R (Receiver Input)
  8. DE (Driver Output Enable)

Functional Features

  • Supports RS-485 and RS-422 standards
  • Half-duplex communication mode
  • Built-in fail-safe circuitry
  • Thermal shutdown protection
  • Low power consumption
  • Wide common-mode voltage range

Advantages

  • High data rate capability
  • Robust noise immunity
  • Flexible driver output enable control
  • Easy integration into various systems
  • Reliable performance in harsh environments

Disadvantages

  • Limited to half-duplex communication
  • Requires external termination resistors for proper operation
  • Relatively higher cost compared to some alternatives

Working Principles

The DS1487M is a transceiver designed to facilitate bidirectional communication between devices using the RS-485 or RS-422 standard. It converts the differential signals from the driver inputs into single-ended signals at the receiver outputs. The device operates in a half-duplex mode, allowing transmission and reception of data on a shared communication line.

Detailed Application Field Plans

  • Industrial automation systems
  • Building automation and control networks
  • HVAC (Heating, Ventilation, and Air Conditioning) systems
  • Security and access control systems
  • Telecommunication infrastructure
  • Automotive electronics

Alternative Models

  1. MAX485 - Manufactured by Maxim Integrated
  2. SN75176 - Manufactured by Texas Instruments
  3. LTC485 - Manufactured by Linear Technology
  4. ADM2487 - Manufactured by Analog Devices

These alternative models offer similar functionality to the DS1487M and can be considered as replacements depending on specific requirements.

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Senaraikan 10 soalan dan jawapan biasa yang berkaitan dengan aplikasi DS1487M dalam penyelesaian teknikal

Sure! Here are 10 common questions and answers related to the application of DS1487M in technical solutions:

  1. Q: What is DS1487M? A: DS1487M is a high-speed RS-485/RS-422 transceiver chip designed for industrial applications.

  2. Q: What is the maximum data rate supported by DS1487M? A: DS1487M supports data rates up to 20 Mbps, making it suitable for high-speed communication.

  3. Q: Can DS1487M be used in half-duplex mode? A: Yes, DS1487M can operate in both half-duplex and full-duplex modes, providing flexibility in system design.

  4. Q: Does DS1487M support multi-drop communication? A: Yes, DS1487M supports multi-drop communication, allowing multiple devices to be connected on the same bus.

  5. Q: Is DS1487M compatible with different voltage levels? A: Yes, DS1487M has a wide supply voltage range (3V to 5.5V) and supports logic-level translation.

  6. Q: Can DS1487M handle long-distance communication? A: Yes, DS1487M has built-in fail-safe circuitry and excellent noise immunity, making it suitable for long-distance communication.

  7. Q: Does DS1487M have built-in protection features? A: Yes, DS1487M includes overvoltage protection, short-circuit protection, and thermal shutdown to safeguard against faults.

  8. Q: Can DS1487M be used in harsh environments? A: Yes, DS1487M is designed for industrial applications and can operate in extended temperature ranges (-40°C to +85°C).

  9. Q: What is the package type of DS1487M? A: DS1487M is available in a small outline integrated circuit (SOIC) package, which is commonly used in electronic systems.

  10. Q: Are there any application notes or reference designs available for DS1487M? A: Yes, the manufacturer provides application notes and reference designs to assist with the implementation of DS1487M in various technical solutions.

Please note that these answers are general and may vary depending on the specific requirements and implementation of DS1487M in different applications.