MAX3232EESE+

Overview

The MAX3232EESE+ is a true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It features two drivers and two receivers, operating on a single 3V to 5.5V supply with typical standby current of 1mA. The device supports data rates up to 250kbit/s and includes ±15kV ESD protection. It utilizes four external 0.1µF capacitors for its dual charge pump circuit. The component is housed in a 16-pin SOIC package and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated dual charge pump circuit requiring only four small external capacitors
• Provides ±15kV IEC ESD protection on serial-port connection pins including ground
• Maintains full RS-232 output voltage levels at low supply voltages down to 3.0V

Applications

• Industrial PCs
• Wired networking equipment
• Data center and enterprise computing systems

Procurement Notes

Verify the specific suffix 'E' indicates the extended industrial temperature grade (-40°C to +85°C) compared to commercial variants. Confirm the 'S' denotes the SOIC surface-mount package type. Ensure the '+' suffix confirms lead-free and RoHS compliance status as per manufacturer specifications before finalizing procurement orders.

Selection Notes

Select this component when interfacing asynchronous communication controllers with serial ports requiring robust ESD protection. It is suitable for battery-powered systems due to low standby current. Verify that the required data rate does not exceed 250kbit/s and that the system operates within the specified 3V to 5.5V voltage range.

Part Context

This part belongs to the MAX3232E family of multichannel RS-232 line drivers and receivers. It is pin-compatible with industry-standard MAX232 devices but offers improved performance at lower supply voltages. The series is designed for applications needing reliable serial communication interfaces in space-constrained environments.

Replacement Considerations

The SNx5C3232 is identified as an alternative high-speed pin-compatible device offering 1Mbit/s operation. Catalog versions such as MAX3232E are available as standard alternatives without automotive qualification.