Analog Devices Inc./Maxim Integrated Tariff Inquiry

MAX232EJE

MAX232EJE Description

The MAX232EJE from Analog Devices Inc./Maxim Integrated is a multi-channel RS-232 driver/receiver IC designed to facilitate bidirectional data communication between TTL/CMOS logic levels and RS-232 signals. This obsolete but still widely used component is ROHS3 Compliant and packaged in bulk, making it suitable for legacy systems and repairs. With a Moisture Sensitivity Level (MSL) of 1 (Unlimited), it ensures reliability in various environmental conditions. The device operates within a 5V supply range, providing ±30V input/output voltage tolerance, and integrates charge-pump voltage converters to generate RS-232-compliant ±10V outputs from a single 5V supply.

MAX232EJE Features

• Dual Driver/Receiver Channels: Supports two full-duplex RS-232 ports, reducing board space and BOM costs.
• Integrated Charge Pump: Eliminates the need for external ±12V power supplies, simplifying design.
• High Noise Immunity: Robust against EMI and signal degradation in industrial environments.
• Low Power Consumption: Optimized for battery-powered or energy-efficient applications.
• Wide Operating Temperature Range: Suitable for harsh conditions, though exact specs depend on the variant.
• Compliance: EAR99 (export-friendly) and HTSUS 8542.39.0001 (tariff classification).

MAX232EJE Applications

• Legacy Industrial Equipment: Retrofitting or maintaining older RS-232-based systems.
• Embedded Systems: Interface microcontrollers (e.g., 8051, PIC) with PCs or peripherals.
• Telecom Infrastructure: Modems, routers, and serial communication modules.
• Medical Devices: Reliable data transmission in diagnostic equipment.
• Point-of-Sale (POS) Terminals: Secure transaction handling via serial ports.

Conclusion of MAX232EJE

The MAX232EJE remains a cost-effective, reliable solution for RS-232 interfacing despite its obsolete status. Its integrated charge pump, dual-channel design, and robust noise immunity make it ideal for industrial, embedded, and legacy applications. While newer alternatives exist, the MAX232EJE's proven performance and compliance ensure continued relevance in niche markets. Engineers should verify availability for new designs but can confidently use it for repairs or upgrades.