MAX3232EESE+T

Overview

The MAX3232EESE+T is a dual-channel RS-232 transceiver manufactured by Analog Devices/Maxim Integrated. It operates from a single 3V to 5.5V supply and includes an internal dual charge pump requiring four external 0.1µF capacitors. The device provides two drivers and two receivers, supporting data rates up to 250kbit/s with a maximum slew rate of 30V/µs. It features ±15kV IEC ESD protection on serial-port connection pins and accepts 5V logic inputs when powered by a 3.3V supply. The component is housed in a 16-pin SOIC package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrated dual charge pump circuit enables true RS-232 performance using only four small external capacitors
• Provides robust ±15kV IEC ESD protection directly on the serial-port connection pins including ground
• Supports full-duplex communication with independent drivers and receivers for asynchronous data transfer

Applications

• Industrial PCs and wired networking equipment
• Data center and enterprise computing systems
• Battery-powered portable devices such as notebooks and handheld equipment

Procurement Notes

Verify that the specific ordering suffix matches the required package type and environmental rating. Confirm the manufacturer designation aligns with current corporate structures following industry acquisitions. Ensure the component meets the necessary regulatory standards for the intended deployment region before finalizing procurement orders.

Selection Notes

Select this component for designs requiring low standby current and compatibility with standard RS-232 protocols. Verify that the system power supply remains within the 3V to 5.5V operating range. Ensure sufficient board space is allocated for the four required external charge pump capacitors near the V+ and V- pins.

Part Context

This part belongs to the MAX3232E family of multichannel RS-232 line drivers and receivers. It serves as a bridge between microcontroller logic levels and standard serial port connectors. The device is widely used in legacy interface applications where reliable serial communication is required without complex voltage generation circuits.

Replacement Considerations

The SNx5C3232 is a pin-compatible high-speed alternative offering 1Mbit/s data rates. Other variants within the MAX3232 series may offer different temperature ranges or packaging options.