MAX3232EUE+

Overview

The MAX3232EUE+ is a low-power, true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It integrates two drivers and two receivers with dual charge-pump circuitry to operate from a single 3V to 5.5V supply. The device supports data rates up to 250kbit/s and utilizes four external 0.1μF capacitors. It features ±15kV IEC ESD protection on serial-port connection pins, including ground. The component operates within a temperature range of -40°C to +85°C and draws a typical standby current of 300μA.

Feature Summary

• Integrates dual charge pumps for single-supply operation
• Provides enhanced electrostatic discharge protection
• Supports standard RS-232 signaling levels

Applications

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

Procurement Notes

Verify the specific package variant against the datasheet, as suffixes indicate different physical footprints such as TSSOP or SOIC. Confirm that the intended application environment aligns with the specified operating temperature range and voltage requirements before finalizing procurement decisions.

Selection Notes

Select this component when designing systems requiring full-duplex RS-232 communication with minimal power consumption. Ensure the design accommodates the required four external capacitors for the charge pump circuit. Verify logic input compatibility if interfacing with 5V logic while powered by a 3.3V supply.

Part Context

This part belongs to the MAX3232 family of RS-232 transceivers designed for low-voltage applications. It serves as a bridge between asynchronous communication controllers and serial port connectors. The device maintains pin compatibility with industry-standard predecessors while offering improved power efficiency and robustness.

Replacement Considerations

The catalog version MAX3232E is a direct equivalent. For higher-speed requirements, consider pin-compatible alternatives like SNx5C3232.