MAX3241EEAI

Overview

The MAX3241EEAI+T is a true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, housed in a 28-pin SSOP package. It operates on a single +3.0V to +5.5V supply and features three drivers and five receivers for full-duplex communication. The device guarantees data rates up to 250kbps with worst-case loads of 3kΩ parallel to 1000pF. 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). Shutdown mode reduces supply current to less than 1μA while keeping receivers active.

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 transmitter outputs and receiver inputs against high-voltage static events.
• Shutdown control allows ultra-low power consumption while maintaining receiver activity for system monitoring.
• Complementary noninverting receiver outputs remain active during shutdown to support ring indicator detection.

Applications

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

Procurement Notes

Verify the specific suffix 'E' indicates the extended temperature range of -40°C to +85°C. Confirm the '+T' designation corresponds to reel packaging if required by assembly equipment. Ensure the component matches the 28-pin SSOP footprint dimensions before integration into the design.

Selection Notes

Select this component when designing serial ports for space-constrained mobile devices requiring multiple transmit and receive lines. It serves as a drop-in replacement for legacy MAX242-compatible designs but offers superior ESD robustness and lower power consumption. Verify that the application load does not exceed the specified 3kΩ parallel capacitance limits for guaranteed signal integrity.

Part Context

This part belongs to the MAX32xxE family of low-power RS-232 transceivers. It shares architectural similarities with the MAX3222E and MAX3232E but provides a complete serial port configuration with three drivers and five receivers. The EE suffix specifically denotes the industrial temperature grade and SSOP packaging variant within the broader product line.

Replacement Considerations

MAX3241ECUI+