MAX3241ECWI+

Overview

The MAX3241ECWI+ is a true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, designed for serial communication in notebook and subnotebook computers. It features three drivers and five receivers within a 28-pin Wide SO package. The device operates from a +3.0V to +5.5V supply with a typical operating current of 1mA and a shutdown current of 1µA. It guarantees data rates up to 250kbps while maintaining EIA/TIA-232 output levels. Enhanced ESD protection provides ±15kV withstand capability via the Human Body Model and ±15kV Air-Gap Discharge.

Feature Summary

• Integrated dual charge pump requiring only four small external capacitors for operation
• Enhanced electrostatic discharge protection on all transmitter outputs and receiver inputs
• Shutdown mode maintains active receivers while reducing power consumption significantly
• Complementary noninverting receiver outputs remain active during shutdown for ring indicator detection

Applications

• Notebook, subnotebook, and palmtop computers
• Battery-powered equipment
• Cell-phone data cables

Procurement Notes

Verify the specific suffix 'CW' corresponds to the Wide SOIC package and industrial temperature range (-40°C to +85°C) before ordering. Confirm RoHS compliance status as indicated by the '+' designation. Ensure the component source is an authorized distributor to guarantee authenticity and traceability.

Selection Notes

Select this part when a complete serial port solution with multiple receivers is required for portable systems. It is suitable for designs needing low standby power and high ESD robustness. Verify that the application requires three drivers and five receivers rather than the two-driver configuration found in the MAX3232E variant.

Part Context

This component belongs to the MAX32xxE family of low-power RS-232 transceivers. It shares architectural similarities with the MAX3222E and MAX3232E but offers a higher pin count to support more extensive serial interfaces. The 'E' suffix denotes enhanced ESD protection compared to standard versions.

Replacement Considerations

MAX3241EWI+