Analog Devices Inc./Maxim Integrated Tariff Inquiry

MAX487CSA

MAX487CSA Description

The MAX487CSA from Analog Devices Inc./Maxim Integrated is a half-duplex RS-422/RS-485 transceiver designed for robust serial communication in industrial and embedded systems. Housed in an 8-pin SOIC package, this surface-mount IC operates within a 4.75V to 5.25V supply range and supports data rates up to 250kbps. With a single driver/receiver channel, it is optimized for noise immunity in electrically noisy environments, featuring 70mV receiver hysteresis to minimize signal errors. The device is REACH compliant and carries an ECCN 5A991G classification, making it suitable for export-controlled applications.

MAX487CSA Features

• Half-Duplex Operation: Enables bidirectional communication over a single twisted-pair cable, reducing wiring complexity.
• Enhanced Noise Immunity: 70mV receiver hysteresis ensures reliable signal integrity in industrial settings.
• Low Power Consumption: Designed for efficiency in power-sensitive applications.
• Wide Operating Temperature Range: 0°C to 70°C ensures stable performance in varying environmental conditions.
• RS-422/RS-485 Compliance: Supports industry-standard protocols for long-distance communication (up to 1200 meters).
• Surface-Mount Package (SOIC-8): Compact form factor ideal for space-constrained PCB designs.
• Obsolete Status: While no longer in production, it remains a reliable choice for legacy systems and repairs.

MAX487CSA Applications

• Industrial Automation: Used in PLCs, motor control, and sensor networks due to its noise-resistant design.
• Building Automation: Ideal for HVAC systems, lighting control, and security systems requiring robust communication.
• Telecommunications: Deployed in modems and base stations for reliable data transmission.
• Embedded Systems: Suitable for microcontroller-based projects needing RS-485/RS-422 interfaces.
• Legacy System Maintenance: A go-to solution for repairing or upgrading older RS-485 infrastructure.

Conclusion of MAX487CSA

The MAX487CSA is a high-performance, half-duplex transceiver offering exceptional noise immunity and low-power operation for industrial and embedded communication systems. While marked as obsolete, its proven reliability in RS-422/RS-485 networks ensures continued relevance in maintenance and legacy applications. Engineers value its compact SOIC-8 package, wide voltage tolerance, and compliance with industry standards, making it a dependable choice for demanding environments. For new designs, consider modern alternatives, but for existing systems, the MAX487CSA remains a trusted solution.