Analog Devices Inc./Maxim Integrated

MAX3111ECWI  

Memory Controllers

MAX3111ECWI Description

The MAX3111ECWI from Analog Devices Inc./Maxim Integrated is an advanced RS232/RS485 transceiver with an integrated SPI/UART interface, designed for efficient serial communication in embedded systems. Housed in a 28-SOIC package, this IC operates within a 3V to 3.6V supply range and consumes a low 600µA supply current, making it suitable for power-sensitive applications. With support for RS232 and RS485 protocols, it provides flexible connectivity options for industrial, automotive, and consumer electronics. Although marked as obsolete, its robust design and REACH Unaffected status ensure reliability in existing deployments.

MAX3111ECWI Features

• Dual-Protocol Support: Combines RS232 and RS485 in a single IC, reducing board space and BOM costs.
• Low Power Consumption: 600µA supply current extends battery life in portable devices.
• SPI/UART Interface: Enables seamless integration with microcontrollers and processors.
• Wide Operating Temperature: 0°C to 70°C ensures stable performance in varied environments.
• Integrated Charge Pump: Eliminates the need for external capacitors in RS232 mode, simplifying design.
• High Noise Immunity: Ideal for industrial environments with EMI challenges.

MAX3111ECWI Applications

• Industrial Automation: Used in PLCs, sensors, and control systems requiring robust RS485/RS232 communication.
• Embedded Systems: Ideal for low-power MCU-based designs needing SPI/UART interfacing.
• Consumer Electronics: Enables serial communication in smart home devices and peripherals.
• Automotive Diagnostics: Supports OBD-II and vehicle telemetry systems with reliable data transmission.

Conclusion of MAX3111ECWI

The MAX3111ECWI stands out for its dual-protocol flexibility, low power, and integrated interface options, making it a versatile choice for legacy and power-constrained designs. While obsolete, its performance and reliability continue to make it a preferred solution for industrial and embedded applications requiring robust serial communication. Engineers should consider alternative modern equivalents for new designs but can rely on this IC for proven performance in existing systems.

MAX3111ECWI Documents

Download datasheets and manufacturer documentation for MAX3111ECWI

Datasheets :

MAX3110E,11E      

Part Numbering Guide :

Part Numbering System      

Application Notes :

Determining Clock Accuracy Requirements for UART Communications      

PCN Obsolescence/ EOL :

Mult Dev OBS 15/Jul/2015      

Environmental Information :

Maxim Integrated RoHS Cert       Maxim Integrated REACH