MAX3232ESE+

Overview

The MAX3232ESE+ is a dual RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single 3V to 5.5V supply and includes two drivers and two receivers. The device utilizes a dual charge-pump circuit requiring four external 0.1µF capacitors to generate the necessary voltage levels for RS-232 communication. It supports data rates up to 250kbit/s with a typical supply current of 300µA. The component provides ±15kV IEC ESD protection on serial-port connection pins, including ground. It meets TIA/EIA-232-F and ITU v.28 standards and accepts 5V logic inputs while powered by a 3.3V supply.

Feature Summary

• Dual charge-pump architecture enabling true RS-232 performance from a single low-voltage power source
• Integrated ±15kV IEC electrostatic discharge protection on all serial port connection pins
• Full compatibility with industry-standard pinouts and functionality of legacy MAX232 devices
• Low standby current consumption designed to extend battery life in portable applications

Applications

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

Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature range. Confirm RoHS compliance status and lead finish specifications against the manufacturer's latest orderable information. Ensure the supplier provides valid traceability documentation for automotive or industrial grade variants if applicable.

Selection Notes

Select this component when a standard RS-232 interface is needed with minimal external capacitance requirements. It is suitable for designs operating between 3V and 5.5V where low power consumption is critical. Consider alternative high-speed pin-compatible devices if data rates exceeding 250kbit/s are required.

Part Context

This part belongs to the MAX3232 family of multichannel RS-232 line drivers and receivers. It serves as a bridge between asynchronous communication controllers and serial-port connectors. The device is widely used in legacy serial communication interfaces within embedded systems and personal computing hardware.

Replacement Considerations

SNx5C3232 series devices offer pin-compatible alternatives with higher data rate capabilities.