Texas Instruments

MAX3222CPW  

Drivers, Receivers, Transceivers

MAX3222CPW Description

The MAX3222CPW from Texas Instruments is a 3V to 5.5V-powered, full-duplex RS-232 transceiver designed for robust serial communication in embedded systems. Housed in a 20-pin TSSOP package, this obsolete but RoHS3-compliant IC integrates 2 drivers and 2 receivers, supporting data rates up to 250kbps. It operates within a 0°C to 70°C temperature range, making it suitable for industrial and consumer applications. The device features 300mV receiver hysteresis for improved noise immunity and complies with EAR99 export controls. Its surface-mount design and MSL 1 (Unlimited) rating ensure ease of assembly and storage.

MAX3222CPW Features

• Wide Voltage Range (3V–5.5V): Compatible with both 3.3V and 5V systems.
• Full-Duplex Operation: Simultaneous bidirectional communication.
• Enhanced Noise Immunity: 300mV receiver hysteresis minimizes signal errors.
• Low Power Consumption: Optimized for battery-powered devices.
• Compact TSSOP Package: Saves board space in dense layouts.
• RS-232 Compliance: Meets industry-standard protocol requirements.
• RoHS3 Compliant: Environmentally friendly with restricted substance compliance.

MAX3222CPW Applications

• Industrial Automation: PLCs, motor controllers, and sensor interfaces requiring reliable RS-232 communication.
• Point-of-Sale (POS) Systems: Connects peripherals like barcode scanners and receipt printers.
• Medical Devices: Patient monitoring equipment with serial data transmission.
• Embedded Systems: Microcontroller-to-PC communication in prototyping and debugging.
• Legacy Equipment Upgrades: Replaces older RS-232 transceivers in retrofit designs.

Conclusion of MAX3222CPW

The MAX3222CPW offers a balance of performance, compactness, and compliance, ideal for legacy and modern serial communication needs. While marked obsolete, its noise-resistant design, wide voltage support, and full-duplex capability make it a pragmatic choice for systems requiring stable RS-232 interfacing. Engineers should evaluate alternative TI offerings for new designs but may leverage this IC for cost-sensitive or backward-compatible applications.

MAX3222CPW Documents

Download datasheets and manufacturer documentation for MAX3222CPW

Datasheets :

MAX3222      

PCN Obsolescence/ EOL :

Mult Dev EOL 01/Sep/2021      

PCN Design/Specification :

Design 22/Feb/2022