MAX3232ESE+G035

Overview

The MAX3232ESE+G035 is a dual driver and receiver RS-232 transceiver designed for single-supply operation between 3.0V and 5.5V. It integrates a dual charge-pump circuit to generate the required ±10V levels from a single logic supply, requiring only four external 0.1μF capacitors. The device provides two drivers and two receivers with ±15kV IEC ESD protection on all serial-port connection pins. It supports data signaling rates up to 250kbit/s and features low standby current of 300μA typical. The component operates within an industrial temperature range of -40°C to +85°C.

Feature Summary

• Dual charge-pump architecture enables true RS-232 performance using a single 3V to 5.5V power supply without negative voltage rails.
• Integrated ±15kV IEC electrostatic discharge (ESD) protection on all serial port connection pins, including ground.
• Low standby current consumption of 300μA typical, optimizing battery life in portable applications.
• Pin-compatible design with industry-standard MAX232 devices, facilitating direct upgrades.

Applications

• Industrial PCs
• Wired networking equipment
• Data center and enterprise computing systems
• Battery-powered handheld devices

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type, lead finish, and environmental compliance status. Confirm that the component meets the required automotive or industrial qualification standards if applicable to the target system. Ensure the supplier provides valid traceability documentation for production-grade parts.

Selection Notes

Select this component when interfacing microcontrollers operating at 3.3V or 5V with standard RS-232 serial ports. The device is suitable for designs requiring robust ESD protection and low power consumption. Verify that the external capacitor values match the specific supply voltage requirements outlined in the datasheet to ensure reliable charge pump operation.

Part Context

This part belongs to the MAX3232 family of low-power RS-232 transceivers manufactured by Maxim Integrated, now part of Analog Devices Inc. The series is widely recognized for replacing older MAX232 components while maintaining pin compatibility. It serves as a standard interface solution for converting TTL/CMOS logic levels to RS-232 voltages in embedded systems.

Replacement Considerations

The SNx5C3232 is identified as a high-speed pin-compatible alternative offering 1Mbit/s data rates. Standard catalog versions such as MAX3232E are also available as equivalents depending on specific packaging and temperature grade requirements.