MAX3232ECPE+

Overview

The MAX3232ECPE+ is a dual RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single 3.0V to 5.5V supply and supports data rates up to 250kbit/s. The device features two drivers and two receivers, providing full-duplex communication. It includes ±15kV IEC ESD protection on serial-port connection pins. The internal charge pump requires four external 0.1μF capacitors. It meets TIA/EIA-232-F standards and accepts 5V logic inputs with a 3.3V supply.

Feature Summary

• Integrated dual charge-pump circuit for single-supply operation
• Enhanced electrostatic discharge protection on all serial-port pins
• Compatible with 5V logic inputs while powered by 3.3V
• Compliant with TIA/EIA-232-F interface standards

Applications

• Industrial PCs
• Wired networking equipment
• Battery-powered handheld systems

Procurement Notes

Verify the specific package variant against the datasheet, as suffixes indicate form factor differences. Confirm that the component source provides valid traceability documentation. Ensure the ordering information matches the exact electrical specifications required for the target application environment.

Selection Notes

Select this component when designing interfaces requiring robust ESD protection and low standby current. Verify that the system power supply remains within the 3.0V to 5.5V range. Ensure adequate decoupling capacitors are placed near the V+ and V- pins to maintain signal integrity at maximum data rates.

Part Context

This part belongs to the MAX3232E family of true RS-232 transceivers. It shares functional compatibility with other variants in the series but differs in packaging and thermal characteristics. The device is designed for reliable serial communication in environments subject to electrical noise or static discharge events.

Replacement Considerations

The SNx5C3232 is identified as a pin-compatible alternative offering higher speed capabilities. Verify voltage levels and ESD ratings before substitution.