The MAX3221EIPWR is a high-performance RS-232 transceiver IC from Texas Instruments (TI), designed for reliable communication between TTL/CMOS logic and RS-232 standards. It enables bidirectional data conversion between low-voltage digital signals and RS-232 voltage levels, supporting full-duplex operation in industrial and communication systems. Its compact TSSOP-16 package and robust features make it ideal for space-constrained embedded applications.

Key Features

• RS-232 compliance: Fully compatible with RS-232 standards, supporting data rates up to 250 kbps.
• Single-channel operation: Enables full-duplex communication via integrated transmitter and receiver.
• Wide voltage range: Operates from 3V to 5.5V, suitable for diverse power supplies.
• High ESD protection: Withstands ±15 kV contact discharge, ensuring reliability in harsh environments.
• Dual-charge pump: Eliminates the need for external capacitors, simplifying design.
• Extended temperature range: Functions reliably from -40°C to +85°C, ideal for industrial use.
• Automatic power management: Reduces power consumption in idle modes.
• Noise suppression and protection: Includes overvoltage and short-circuit protection to safeguard circuits.

Common uses include industrial control systems, PLC communication, data acquisition devices, modems, routers, test equipment, medical devices, and automation hardware. Its compact size and rugged design make it a preferred choice for connecting embedded systems to legacy RS-232 peripherals in industrial, telecom, and IoT applications.

The MAX3221EIPWR combines reliable RS-232 conversion, low-power efficiency, and industrial-grade durability in a compact package. Its integrated features and wide operating range make it a versatile solution for bridging TTL/CMOS logic to RS-232 interfaces in demanding environments, ensuring stable communication across diverse applications.