Professional IC Distribution & Technical Solutions

# MC3487N: A Reliable RS-422/RS-423 Differential Line Driver

In the world of digital communication, ensuring robust signal transmission over long distances is crucial. The MC3487N is a high-performance differential line driver designed to meet the demands of RS-422 and RS-423 serial communication standards. With its ability to deliver high-speed data transmission while maintaining signal integrity, this component is an essential choice for industrial, networking, and embedded system applications.

## Key Features and Benefits

The MC3487N excels in converting single-ended TTL or CMOS logic signals into balanced differential outputs, significantly reducing noise susceptibility in electrically noisy environments. Its key features include:

• High-Speed Operation: Capable of supporting data rates up to 10 Mbps, making it suitable for high-speed communication systems.
• Wide Supply Voltage Range: Operates from a 4.5V to 10V supply, providing flexibility in various circuit designs.
• Low Power Consumption: Designed for efficiency, ensuring minimal power dissipation without compromising performance.
• Robust Output Drive: Capable of driving long transmission lines with minimal signal degradation, thanks to its differential output structure.
• Short-Circuit Protection: Built-in safeguards prevent damage from output short circuits, enhancing reliability in demanding applications.

## Applications

The MC3487N is widely used in scenarios requiring reliable long-distance data transmission. Common applications include:

• Industrial Automation: Ensures stable communication between PLCs, sensors, and control units in noisy factory environments.
• Networking Equipment: Facilitates high-speed data transfer in RS-422-based communication networks.
• Telecommunications: Supports signal integrity in serial data links and modem interfaces.
• Embedded Systems: Ideal for microcontroller-based designs requiring robust external communication.

## Why Choose the MC3487N?

Engineers and designers favor the MC3487N for its proven performance in critical applications. Its ability to mitigate electromagnetic interference (EMI) and ground loop issues makes it a dependable choice for systems where signal integrity is non-negotiable. Additionally, its compatibility with industry-standard RS-422 and RS-423 interfaces ensures seamless integration into existing designs.

For projects requiring a high-speed, noise-resistant differential line driver, the MC3487N stands out as a reliable and efficient solution. Whether in industrial control systems, networking infrastructure, or embedded electronics, this component delivers consistent performance under challenging conditions.

By incorporating the MC3487N into your design, you can achieve stable, long-distance data transmission with confidence, knowing that signal integrity and reliability are prioritized.