Analog Devices Inc./Maxim Integrated

MAX3243EAI  

Drivers, Receivers, Transceivers

MAX3243EAI Description

The MAX3243EAI from Analog Devices Inc./Maxim Integrated is a 3-driver/5-receiver RS-232 transceiver designed for robust serial communication in embedded systems. Operating within a 3V to 5.5V supply range, it supports full-duplex communication at data rates up to 120Kbps, making it suitable for moderate-speed industrial and consumer applications. Housed in a 28-pin SSOP package, this surface-mount device integrates 300mV receiver hysteresis for enhanced noise immunity, critical in electrically noisy environments. Although marked obsolete, its legacy design remains relevant for maintenance or legacy system upgrades.

MAX3243EAI Features

• High Integration: Combines 3 drivers and 5 receivers in a compact footprint, reducing board space.
• Wide Voltage Range: Operates from 3V to 5.5V, compatible with mixed-voltage systems.
• Noise Resilience: 300mV receiver hysteresis minimizes signal errors in high-interference scenarios.
• Low Power: Optimized for efficiency in battery-powered or energy-sensitive applications.
• Compliance: Meets RS-232 standards and carries EAR99/REACH Unaffected certifications for global deployment.
• Legacy Support: Ideal for maintaining or replacing older RS-232 systems due to its proven reliability.

MAX3243EAI Applications

• Industrial Automation: Interfaces PLCs, sensors, and legacy equipment with RS-232 ports.
• Point-of-Sale (POS) Systems: Connects peripherals like barcode scanners or receipt printers.
• Embedded Systems: Facilitates debugging and firmware updates via serial communication.
• Medical Devices: Supports diagnostic equipment requiring stable, noise-resistant data links.
• Telecom Infrastructure: Used in modems and network hardware for configuration and monitoring.

Conclusion of MAX3243EAI

The MAX3243EAI offers a balanced blend of performance, integration, and noise immunity, tailored for RS-232 communication in demanding environments. While obsolete, its wide voltage range, compact design, and hysteresis feature make it a pragmatic choice for legacy system sustainment or niche applications. Engineers valuing reliability over cutting-edge availability may still find it advantageous in industrial, medical, or embedded contexts.

MAX3243EAI Documents

Download datasheets and manufacturer documentation for MAX3243EAI

Datasheets :

MAX3221,23,43      

Part Numbering Guide :

Part Numbering System      

Application Notes :

RS-232 Features Explained       New RS-232 ICs Feature 1µA Supply Current, 15kV ESD Protection, 3V Operation       Determining Clock Accuracy Requirements for UART Communications      

PCN Obsolescence/ EOL :

Mult Dev OBS 04/Sep/2015      

Environmental Information :

Maxim Integrated RoHS Cert       Maxim Integrated REACH