DS1487MX/NOPB

Product Overview

• Category: Integrated Circuit
• Use: RS-485/RS-422 Transceiver
• Characteristics: High-Speed, Low-Power, Half-Duplex Communication
• Package: 8-SOIC (Small Outline Integrated Circuit)
• Essence: Facilitates reliable long-distance data communication in industrial applications
• Packaging/Quantity: Tape & Reel, 2500 units per reel

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: ±60V
• Receiver Input: ±12V
• Shutdown Mode: Low Power Consumption (<1µA)

Pin Configuration

The DS1487MX/NOPB features an 8-pin Small Outline Integrated Circuit (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 Driver Output)
7. A (Non-Inverted Driver Output)
8. VCC (Supply Voltage)

Functional Features

• Supports RS-485 and RS-422 standards
• Enables half-duplex communication over long distances
• Provides high-speed data transmission up to 10Mbps
• Offers robust noise immunity for reliable operation in industrial environments
• Allows driver and receiver enable/disable control for power management
• Supports multiple transceivers on a single bus

Advantages and Disadvantages

Advantages: - High-speed data transfer capability - Low power consumption in shutdown mode - Wide operating temperature range for industrial applications - Robust noise immunity for reliable communication

Disadvantages: - Limited to half-duplex communication - Requires external components for complete functionality

Working Principles

The DS1487MX/NOPB is an RS-485/RS-422 transceiver that facilitates long-distance data communication. It operates by converting the differential signals from the driver input (DI) into a balanced voltage signal on the twisted-pair cable. The receiver output (RO) converts the received differential voltage back into logic levels.

The driver enable (DE) and receiver enable (RE) pins control the operation of the transceiver. When DE is high, the driver is enabled, allowing data transmission. Similarly, when RE is high, the receiver is enabled, allowing data reception.

Detailed Application Field Plans

The DS1487MX/NOPB is widely used in various industrial applications that require reliable long-distance data communication. Some common application fields include:

1. Industrial Automation Systems
2. Building Automation Systems
3. Process Control Systems
4. HVAC (Heating, Ventilation, and Air Conditioning) Systems
5. Access Control Systems
6. Security Systems
7. Energy Management Systems

Alternative Models

Here are some alternative models that offer similar functionality to the DS1487MX/NOPB:

1. MAX485EESA+
2. SN75176BP
3. LTC485CN8
4. ADM485ARZ
5. SP3485EN-L/TR

These alternatives can be considered based on specific requirements and availability.

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