MAX3233EEWP-T

Overview

The MAX3233EEWP-T is a dual RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, designed for single-supply operation within the +3.0V to +3.6V range. It integrates internal charge-pump capacitors to eliminate external components, supporting data rates up to 250kbps with full duplex communication. The device features two drivers and two receivers, operating across an extended temperature range of -40°C to +85°C. Key electrical specifications include a maximum supply voltage of 3.6V, minimum of 3V, and typical operating current of 1mA. It provides robust ±15kV ESD protection on I/O pins and includes automatic shutdown functionality to minimize power consumption during inactivity.

Feature Summary

• Integrates internal charge-pump capacitors to simplify circuit design and reduce component count
• Provides enhanced electrostatic discharge protection on all RS-232 input and output pins
• Features AutoShutdown Plus technology that automatically reduces supply current when the interface is idle or disconnected
• Supports full-duplex communication with guaranteed data rates up to 250kbps

Applications

• Subnotebook and palm-top computers requiring low-power serial communication
• Portable battery-powered instruments and handheld devices
• Modems and portable terminals utilizing RS-232 interfaces
• Industrial control systems with strict power management requirements

Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging configuration. Confirm RoHS compliance status as manufacturing processes evolve. Check obsolescence notices from Analog Devices, as this series has faced lifecycle changes. Ensure the supplier source is authorized to guarantee authenticity for critical interface components.

Selection Notes

Select this component for applications requiring 3.3V operation with integrated capacitance. Compare against MAX3232E if 5V compatibility is needed without ESD protection. Consider MAX3235E for standard 5V systems. Verify package availability in SOIC-20 format matches PCB layout constraints. Ensure thermal performance meets system requirements within the specified operating temperature range.

Part Context

This part belongs to the MAX3233E family of dual RS-232 transceivers. It shares functional similarities with the MAX3235E but operates at lower voltages. The EEWP suffix denotes an industrial temperature range and SOIC-20 package. The T suffix typically indicates reel packaging for automated assembly. This series represents a generation of low-power RS-232 solutions with integrated protection features.

Replacement Considerations

MAX3233ECWP+TG36 offers identical electrical specifications with potential packaging variations. MAX3233EEWP is the non-tape version of the same device. MAX3232EWE+T serves as a similar dual transceiver but lacks ESD protection and supports 5V. Verify pin compatibility before substitution.