DS1487M/NOPB

Product Overview

• Category: Integrated Circuit
• Use: Communication Interface
• Characteristics: High-Speed, Low-Power, RS-485/RS-422 Transceiver
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The DS1487M/NOPB is a high-speed, low-power RS-485/RS-422 transceiver designed for industrial communication applications.
• Packaging/Quantity: The DS1487M/NOPB is available in a 14-pin SOIC package and is typically sold in reels of 2500 units.

Specifications

• Supply Voltage: 4.75V to 5.25V
• Data Rate: Up to 10Mbps
• Operating Temperature Range: -40°C to +85°C
• Number of Drivers/Receivers: 1 Driver, 1 Receiver
• Driver Output Current: ±60mA
• Receiver Input Voltage Range: ±12V
• Shutdown Mode: Yes
• Protection Features: Short-Circuit Protection, Thermal Shutdown Protection

Pin Configuration

The DS1487M/NOPB has a 14-pin SOIC package with the following pin configuration:

1. DE (Driver Enable)
2. RE (Receiver Enable)
3. DI (Driver Input)
4. RO (Receiver Output)
5. GND (Ground)
6. B (Inverted Receiver Input)
7. A (Non-Inverted Receiver Input)
8. VCC (Supply Voltage)
9. Y (Driver Output)
10. Z (Inverted Driver Output)
11. NC (No Connection)
12. NC (No Connection)
13. NC (No Connection)
14. NC (No Connection)

Functional Features

• Supports both RS-485 and RS-422 communication standards
• Allows half-duplex communication
• Provides driver and receiver enable control
• Supports high-speed data transmission up to 10Mbps
• Offers short-circuit and thermal shutdown protection

Advantages and Disadvantages

Advantages: - High-speed data transmission capability - Low-power consumption - Robust short-circuit and thermal protection - Suitable for industrial communication applications

Disadvantages: - Limited number of drivers/receivers (1 each) - No built-in ESD protection

Working Principles

The DS1487M/NOPB is a transceiver that enables bidirectional communication between a microcontroller or other digital device and an RS-485/RS-422 network. It converts the digital signals from the microcontroller into differential voltage signals suitable for long-distance transmission over twisted-pair cables. The transceiver also receives incoming differential signals from the network and converts them back into digital signals for the microcontroller to process.

Application Field Plans

The DS1487M/NOPB is commonly used in various industrial communication applications, including:

1. Building Automation Systems
2. Industrial Control Systems
3. Process Control Systems
4. Factory Automation
5. HVAC (Heating, Ventilation, and Air Conditioning) Systems
6. Robotics
7. Power Distribution Systems
8. Transportation Systems

Alternative Models

Here are some alternative models that can be considered as alternatives to the DS1487M/NOPB:

1. MAX485EESA+
2. SN75176BP
3. LTC485CN8
4. ADM485JRZ
5. SP3485EN-L/TR

These alternative models offer similar functionality and can be used as drop-in replacements for the DS1487M/NOPB in many applications.

In conclusion, the DS1487M/NOPB is a high-speed, low-power RS-485/RS-422 transceiver designed for industrial communication applications. It offers reliable and efficient data transmission, making it suitable for various industrial systems.