Analog Devices Inc./Maxim Integrated Tariff Inquiry

MAX242EWN

MAX242EWN Description

The MAX242EWN from Analog Devices Inc./Maxim Integrated is a full-duplex RS-232 transceiver designed for reliable serial communication in demanding environments. Housed in an 18-pin SOIC package, this surface-mount IC integrates 2 drivers and 2 receivers, supporting data rates up to 200kbps with a wide supply voltage range of 4.5V to 5.5V. Its 500mV receiver hysteresis ensures robust noise immunity, making it suitable for industrial and automotive applications where signal integrity is critical. The device is REACH unaffected and complies with EAR99 export controls, though it is now marked as obsolete.

MAX242EWN Features

• Full-Duplex Operation: Enables simultaneous transmission and reception for efficient bidirectional communication.
• High Noise Immunity: 500mV receiver hysteresis minimizes errors in electrically noisy environments.
• Wide Voltage Range: Operates from 4.5V to 5.5V, compatible with standard 5V systems.
• Compact & Reliable: 18-pin SOIC package (MSL 1) ensures easy integration into space-constrained designs.
• RS-232 Compliance: Meets industry-standard protocol requirements for serial communication.
• Obsolete Status: While no longer in production, it remains a viable choice for legacy systems or specific replacements.

MAX242EWN Applications

• Industrial Automation: Ideal for PLCs, motor controllers, and sensor interfaces requiring noise-resistant RS-232 communication.
• Embedded Systems: Used in legacy equipment, test instruments, and diagnostic tools where full-duplex operation is essential.
• Automotive Electronics: Suitable for onboard diagnostics (OBD) and infotainment systems due to its robust performance.
• Telecom Infrastructure: Supports modem and router interfaces in environments with moderate data rate requirements.

Conclusion of MAX242EWN

The MAX242EWN offers a balanced combination of noise immunity, compact packaging, and full-duplex capability, making it a dependable choice for legacy RS-232 applications. While obsolete, its 500mV hysteresis and 200kbps data rate ensure reliable performance in industrial, automotive, and embedded systems. Engineers seeking a proven transceiver for noise-prone environments may still find value in existing stock or alternative solutions from the same family.