MAX232ECWE

Overview

The MAX232ECWE+ is a single-supply RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a +4.5V to +5.5V supply and provides full duplex communication with two drivers and two receivers. The device supports data rates up to 120kbps and features ±15kV ESD protection via the Human Body Model. It utilizes an internal charge pump requiring four external capacitors for voltage conversion. The component is housed in a 16-pin Wide SO package and functions within a commercial temperature range of 0°C to +70°C.

Feature Summary

• Integrated high ±15kV HBM ESD protection for robust operation in harsh environments
• Internal charge pump circuitry enables single +5V supply operation without bipolar supplies
• Full duplex RS-232 communication with two drivers and two receivers

Applications

• Battery-powered equipment
• Hand-held equipment
• Portable diagnostics equipment

Procurement Notes

Verify the specific ordering suffix against official documentation, as it dictates the exact package type and temperature rating. Confirm that the required external capacitor values match the datasheet specifications for the MAX232E variant. Ensure the selected component meets the intended environmental operating conditions before finalizing procurement.

Selection Notes

Select this component when designing systems requiring single-supply RS-232 interfaces with enhanced electrostatic discharge resilience. The wide SOIC package facilitates surface-mount assembly while maintaining standard pinout compatibility. Verify that the application environment falls within the specified 0°C to +70°C operating range for optimal performance.

Part Context

This part belongs to the MAX202E–MAX213E family of RS-232 transceivers designed for single-supply applications. The 'E' designation indicates integrated high-voltage ESD protection structures compared to standard variants. The MAX232E specifically offers two drivers and two receivers, making it suitable for standard asynchronous serial communication links.

Replacement Considerations

Direct replacements include other members of the MAX232E family such as the MAX232EEWE+ or MAX232ECPE+, provided the package and temperature range requirements are met. Cross-family alternatives like the MAX3232 series offer similar functionality but may require different external capacitor configurations.