MAX3233EEWP

Overview

The MAX3233EEWP is a dual RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, housed in a 20-SOIC surface-mount package. It operates within a supply voltage range of 3 V to 3.6 V and supports data rates up to 250 kb/s with full duplex communication. The device integrates internal capacitors for charge pump functionality and includes a shutdown feature to reduce power consumption. It offers 15 kV ESD protection on all pins and functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Integrates charge pump circuitry with internal capacitors to eliminate external components
• Provides robust 15 kV ESD protection on all RS-232 signal lines
• Features a dedicated shutdown pin to minimize standby power consumption

Applications

• Industrial equipment requiring reliable serial communication interfaces
• Portable battery-powered instruments utilizing low-voltage operation
• Modems and fax machines needing dual channel RS-232 connectivity

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to obsolete status. Confirm RoHS compliance details as manufacturing sources may vary. Request original datasheets and traceability documentation to ensure compatibility with existing designs. Validate package markings against official specifications to prevent counterfeit substitution.

Selection Notes

Select this component when designing systems requiring dual independent RS-232 channels without external capacitors. Ensure the application voltage aligns with the 3 V to 3.6 V operating range rather than standard 5 V logic. Consider the 20-SOIC footprint constraints during PCB layout planning. Verify thermal requirements against the specified -40°C to +85°C industrial grade limits.

Part Context

This part belongs to the MAX3233E series of low-power RS-232 transceivers designed for mobile and handheld applications. It shares architectural similarities with other Maxim integrated capacitor devices but differs in driver/receiver count and package options. The EEWP suffix denotes the specific extended temperature range and SOIC-20 packaging configuration.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.