MAX3218EWP

Overview

The MAX3218EWP is a dual driver, dual receiver RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single +1.8V to +4.25V supply and features AutoShutdown technology for ultra-low power consumption. The device guarantees data rates up to 120kbps and includes on-board DC-DC converters to generate RS-232 voltage levels without external components. It is housed in a 20-pin Wide SOIC package and supports full-duplex communication with three-state receiver outputs.

Feature Summary

• AutoShutdown technology minimizes supply current during power-down or idle states
• Integrated charge pump eliminates the need for external capacitors
• Compatible with standard EIA/TIA-232E signal levels

Applications

• Battery-powered portable equipment
• Subnotebook computers
• Personal Digital Assistants (PDAs)

Procurement Notes

Verify the specific suffix 'EWP' against official manufacturer documentation to confirm the exact package type and temperature range. Distributor listings may contain conflicting package descriptions; rely solely on the Maxim Integrated datasheet for definitive part identification and ordering details.

Selection Notes

Select this component for applications requiring low-voltage operation and minimal standby current. Ensure the design accommodates the 120kbps maximum data rate. Verify that the 20-pin package footprint matches the PCB layout constraints before finalizing the bill of materials.

Part Context

This part belongs to the MAX3218 family of low-power RS-232 transceivers. It shares functional similarities with other Maxim RS-232 devices but is distinguished by its specific low-voltage range and integrated shutdown capabilities designed for battery-operated systems.

Replacement Considerations

Direct substitutes include other MAX3218 variants such as MAX3218CAP+ or MAX3218EAP+. Verify pin compatibility and package dimensions when considering alternative packages within the same series.