MAX3235EEWP

Overview

The MAX3235EEWP is a dual RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, designed for full-duplex communication. It operates within a supply voltage range of 4.5V to 5.5V and supports data rates up to 250kbps. The device features two drivers and two receivers housed in a 20-SOIC surface-mount package. It includes internal capacitors to minimize external component requirements and offers 15kV ESD protection. The operational temperature range spans from -40°C to +85°C, with a propagation delay of 0.15µs.

Feature Summary

• Integrated internal capacitors reduce the need for external charge pump components
• Provides robust 15kV electrostatic discharge protection on all RS-232 lines
• Supports full-duplex data transmission with dedicated driver and receiver channels

Applications

• Industrial control systems requiring reliable serial communication
• Portable instrumentation and battery-powered devices
• Modem and fax machine interface circuits

Procurement Notes

Verify obsolescence status as multiple sources indicate this part may be discontinued or end-of-life. Confirm current availability through authorized distributors, as stock levels are often limited. Ensure compliance with RoHS directives if required for specific manufacturing standards. Check for alternative packages or updated series members if new production is needed.

Selection Notes

Select this component when a 5V-only supply system is available and dual RS-232 channels are required. Compare against the MAX3233EEWP if 3.3V operation is necessary instead. Consider the pinout compatibility with other MAX323x family members if upgrading existing designs. Verify that the 250kbps speed meets the application's timing requirements.

Part Context

This part belongs to the MAX323x family of low-power RS-232 transceivers. It shares functional similarities with the MAX3232 and MAX3233 but differs in supply voltage specifications and package options. The EEWP suffix denotes an extended temperature range and a specific SOIC-20 packaging variant suitable for surface mount assembly.

Replacement Considerations

MAX3232EEWE+G1Z: Similar dual transceiver but in a 16-SOIC package. MAX3233EEWP: Compatible function but operates at 3.3V. MAX3235ECWP+: Industrial grade version with different temperature range.