MAX1487ECSA+ - English Editing Encyclopedia Entry

Product Overview

Category

MAX1487ECSA+ belongs to the category of integrated circuits (ICs).

Use

The MAX1487ECSA+ IC is commonly used for RS-485/RS-422 communication applications.

Characteristics

• Supports half-duplex communication
• Operates with a wide supply voltage range of 4.75V to 5.25V
• Provides high data rates up to 2.5Mbps
• Offers low power consumption
• Features thermal shutdown protection
• Supports extended temperature range from -40°C to +85°C

Package and Quantity

The MAX1487ECSA+ IC is available in a small surface-mount SOIC package. It is typically sold in reels or tubes containing a specific quantity, such as 250 units per reel.

Specifications

• Supply Voltage Range: 4.75V to 5.25V
• Data Rate: Up to 2.5Mbps
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOIC
• Package Dimensions: 5mm x 8.65mm
• Pin Count: 8

Detailed Pin Configuration

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

Functional Features

• Half-Duplex Communication: The MAX1487ECSA+ supports bidirectional communication on a single pair of wires, allowing both transmission and reception but not simultaneously.
• Driver Output Enable (DE): This pin enables or disables the driver output, controlling the direction of data transmission.
• Receiver Output Enable (/RE): This pin enables or disables the receiver output, allowing the reception of data.
• Thermal Shutdown Protection: The IC includes thermal shutdown protection to prevent damage due to excessive temperature.

Advantages and Disadvantages

Advantages

• Wide supply voltage range allows for flexibility in various applications.
• High data rates enable fast and efficient communication.
• Low power consumption helps conserve energy.
• Thermal shutdown protection ensures device safety.

Disadvantages

• Limited to half-duplex communication only.
• Requires additional components for full RS-485/RS-422 functionality.

Working Principles

The MAX1487ECSA+ is designed to facilitate reliable serial communication using the RS-485/RS-422 standards. It utilizes differential signaling to transmit and receive data over long distances while minimizing noise interference. The DE and /RE pins control the direction of data flow, enabling either transmission or reception. The IC's internal circuitry ensures proper voltage levels and impedance matching for optimal signal integrity.

Detailed Application Field Plans

The MAX1487ECSA+ IC finds application in various fields, including:

1. Industrial Automation: Used for communication between PLCs (Programmable Logic Controllers), sensors, and actuators in industrial automation systems.
2. Building Automation: Enables communication between different building management systems, such as HVAC (Heating, Ventilation, and Air Conditioning) controllers and access control systems.
3. Instrumentation: Facilitates data exchange between measurement devices, such as sensors and data loggers, in scientific and engineering instrumentation.
4. Automotive Electronics: Supports communication between different automotive modules, such as engine control units and body control modules.

Detailed and Complete Alternative Models

1. MAX485ESA+: Similar to MAX1487ECSA+, but operates at a lower data rate of 2.5Mbps.
2. MAX3485ESA+: Offers enhanced ESD protection compared to MAX1487ECSA+.
3. SN75176BP: An alternative IC with similar functionality, but from a different manufacturer.

In conclusion, the MAX1487ECSA+ is an integrated circuit commonly used for RS-485/RS-422 communication applications. It offers high data rates, low power consumption, and thermal shutdown protection. While limited to half-duplex communication, it finds application in various fields such as industrial automation, building automation, instrumentation, and automotive electronics. Alternative models include MAX485ESA+, MAX3485ESA+, and SN75176BP.