MAX3232CSE+T

Overview

The MAX3232CSE+T is a low-power, true RS-232 transceiver manufactured by Analog Devices (Maxim Integrated). It operates from a single 3.0V to 5.5V supply and features an internal dual charge pump requiring only four 0.1µF external capacitors. The device contains two drivers and two receivers, supporting full-duplex communication with a guaranteed data rate of 120kbps and typical operation up to 235kbps. It utilizes a proprietary low-dropout transmitter output stage to maintain RS-232 voltage levels. The component is housed in a 16-pin Narrow SO package and is designed for commercial temperature ranges.

Feature Summary

• Integrated dual charge pump eliminates the need for bipolar ±12V power supplies
• Low-power architecture extends battery life in portable applications
• Compatible with industry-standard MAX232 pinouts and functionality

Applications

• Battery-powered equipment
• Hand-held devices
• Peripherals
• Datacom equipment

Procurement Notes

Verify that the ordering suffix matches the required package type and temperature range. Confirm RoHS compliance status through official manufacturer documentation before procurement. Ensure the specific variant aligns with the intended application requirements regarding operating conditions and interface compatibility.

Selection Notes

Select this component when interfacing TTL or CMOS logic with RS-232 standards using a single power supply. It is suitable for designs requiring minimal external components due to the integrated charge pump. Consider the 120kbps guaranteed rate for standard serial communications and verify thermal dissipation capabilities within the narrow SO package constraints.

Part Context

This part belongs to the MAX3222/MAX3232/MAX3237/MAX3241 family of low-power RS-232 transceivers. It shares functional similarities with other members but is distinct in its configuration of two drivers and two receivers. The 'C' designation indicates a commercial temperature range, while the '+T' suffix typically denotes tape and reel packaging.

Replacement Considerations

The MAX3232 is functionally compatible with the industry-standard MAX232. Designers replacing older MAX232 units can utilize the MAX3232CSE+T directly if the system supports a single 3.0V to 5.5V supply instead of a dual supply.