MAX3241ECWI+T

Overview

The MAX3241ECWI+T is a true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, housed in a 28-pin Wide SOIC package. It operates on a single +3.0V to +5.5V supply and features three drivers and five receivers. The device guarantees data rates up to 250kbps while maintaining RS-232 output levels. It incorporates an internal dual charge pump requiring only four 0.1µF external capacitors. ESD protection is rated at ±15kV (Human Body Model) and ±8kV (IEC Contact Discharge). Supply current is typically 1mA, dropping to less than 1µA in shutdown mode.

Feature Summary

• Integrated dual charge pump enables true RS-232 performance from a single low-voltage supply using minimal external components.
• Enhanced electrostatic discharge protection safeguards all transmitter outputs and receiver inputs against high-voltage static events.
• Shutdown mode significantly reduces power consumption while allowing receiver monitoring through complementary outputs.

Applications

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

Procurement Notes

Verify the specific ordering suffix to confirm the package type and temperature range. Ensure the component meets RoHS compliance requirements for your assembly process. Confirm availability status with authorized distributors as stock levels fluctuate. Cross-reference the manufacturer part number with official datasheets to validate pinout compatibility before procurement.

Selection Notes

Select this component when designing serial communication interfaces for battery-operated systems requiring low quiescent current. The 28-pin Wide SOIC package suits applications needing multiple driver and receiver channels within space constraints. Verify that the load capacitance and resistance remain within the specified limits to maintain the guaranteed 250kbps data rate without signal degradation.

Part Context

This device belongs to the MAX32xxE family of enhanced RS-232 transceivers. It shares functional similarities with the MAX3222E and MAX3232E but provides a complete serial port configuration with three drivers and five receivers. The EC suffix denotes commercial temperature range operation, while the WI suffix specifies the 28-pin Wide SOIC package format.

Replacement Considerations

Direct replacements include other variants within the MAX3241E family such as MAX3241ECAI+T or MAX3241EEUI+T, provided the package and temperature range match the design requirements. Ensure any substitute maintains the same 3/5 driver/receiver configuration and ESD protection specifications.