MAX237EWG

Overview

The MAX237EWG+ is a multichannel RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates five drivers and three receivers within a single SOIC-24 package, supporting full-duplex communication at data rates up to 120 kb/s. The device operates exclusively on a 5 V power supply with a typical operating current of 15 mA. Signal propagation delay is specified at 10 us. It functions within an industrial temperature range from -40°C to +85°C. The component lacks built-in ESD protection and does not include a shutdown feature.

Feature Summary

• Integrates five independent drivers and three receivers for multi-channel serial communication
• Supports full-duplex data transmission over standard RS-232 interfaces
• Operates reliably in industrial environments across extended temperature ranges

Applications

• Industrial control systems requiring multiple serial connections
• Data acquisition equipment with multi-port communication needs
• Embedded systems utilizing RS-232 protocol for peripheral interfacing

Procurement Notes

Verify the exact suffix designation when ordering, as variations such as EWG+ indicate specific packaging or compliance attributes. Confirm availability status directly with authorized distributors, as stock levels fluctuate. Ensure the procurement channel provides valid traceability documentation. Cross-reference the manufacturer part number against official catalogs to avoid counterfeit components. Validate that the received units match the specified SOIC-24 package dimensions.

Selection Notes

Select this component when designing circuits requiring five transmit and three receive channels without external voltage conversion. It is suitable for applications where a fixed 5 V supply is available and low power consumption is prioritized. Engineers should account for the absence of ESD protection in harsh electrical environments. Consider alternative models if shutdown functionality or higher data rates are required for the specific system architecture.

Part Context

This device belongs to the MAX237 series of multichannel RS-232 transceivers. It shares functional similarities with other Maxim Integrated interface ICs but is distinct due to its specific 5-driver and 3-receiver configuration. The series is designed to simplify board space requirements by integrating multiple channels into a single compact package compared to discrete solutions.

Replacement Considerations

The LTC1337CG#PBF offers a similar RS-232 function but features a different driver/receiver count (3 drivers, 5 receivers) and includes a shutdown pin. Verify pin compatibility and electrical specifications before substitution.