MAX3232CWE+T

Overview

The MAX3232CWE+T is a low-power, true RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates from a single 3.0V to 5.5V supply and features two drivers and two receivers for full-duplex communication. The device utilizes an internal dual charge pump requiring only four 0.1µF external capacitors. It guarantees data rates up to 120kbps with worst-case loads, typically supporting 235kbps. The component is housed in a 16-pin Wide SOIC package (SO-Wide-16) and functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Integrated dual charge pump eliminates the need for bipolar ±12V supplies
• Compatible with industry-standard MAX232 pinout and functionality
• Low power consumption suitable for battery-powered applications

Applications

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

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging when sourcing this part number. Confirm that the 'W' designation corresponds to the Wide SOIC package variant. Ensure the '+'' suffix confirms lead-free compliance with RoHS standards before finalizing procurement orders.

Selection Notes

Select this component for designs requiring compatibility with standard MAX232 interfaces while operating on a single low-voltage supply. It is appropriate for applications needing full-duplex RS-232 communication without external high-voltage generation circuits. Consider the 0°C to +70°C operating range for commercial environments.

Part Context

This device belongs to the MAX3222/MAX3232/MAX3237/MAX3241 family of true RS-232 transceivers. These components are designed to provide EIA/TIA-232-F interface capabilities using minimal external capacitance. The MAX3232 specifically offers two drivers and two receivers, serving as a direct functional replacement for legacy MAX232 solutions in modern low-voltage systems.

Replacement Considerations

MAX3232CWE is the non-tape-and-reel tube version of this component. MAX3232ESE+ and MAX3232EUE+ offer extended industrial temperature ranges (-40°C to +85°C). Other package variants include MAX3232CAE+ (SSOP) and MAX3232CPE+ (Plastic DIP).

FAQ

Does the MAX3232CWE+T support shutdown mode?

No, the MAX3232 does not feature a shutdown control pin. Only the MAX3222, MAX3237, and MAX3241 in this family include shutdown functionality.

What is the maximum guaranteed data rate for the MAX3232?

The MAX3232 is guaranteed to operate at data rates of 120kbps. It typically supports speeds up to 235kbps under normal conditions.

How many external capacitors are required for operation?

The device requires exactly four small 0.1µF external charge-pump capacitors to generate the necessary internal voltage levels.