MAX3225EEUP+

Overview

The MAX3225EEUP+ is a dual RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated, housed in a 20-pin TSSOP package. It supports full-duplex communication with a guaranteed data rate of 1Mbps and operates on a single +3.0V to +5.5V supply. The device features AutoShutdown Plus technology, reducing supply current to 1μA when idle. It includes two drivers and two receivers, providing ±15kV ESD protection on all I/O pins. The operating temperature range extends from -40°C to +85°C.

Feature Summary

• AutoShutdown Plus functionality automatically reduces power consumption during periods of inactivity or cable disconnection.
• Integrated dual charge pump generates internal ±5.5V supplies using only four small external capacitors.
• High electrostatic discharge protection rated at ±15kV for air-gap and human body models.

Applications

• Notebook, subnotebook, and palmtop computers
• Cellular phones and battery-powered equipment
• Hand-held devices and peripherals

Procurement Notes

Verify the specific suffix EEUP+ corresponds to the required -40°C to +85°C industrial temperature range and the 20-pin TSSOP surface-mount package. Confirm RoHS compliance status through official manufacturer documentation before finalizing procurement specifications.

Selection Notes

Select this component for applications requiring high-speed 1Mbps RS-232 communication within space-constrained designs. Ensure the system voltage remains within the 3.0V to 5.5V range and that external 0.1μF capacitors are utilized for the charge pump circuitry to maintain optimal performance.

Part Context

This part belongs to the MAX3224E/MAX3225E/MAX3226E/MAX3227E family of low-power RS-232 transceivers. It shares core architectural features such as the AutoShutdown Plus mode and MegaBaud operation capabilities with sibling parts like the MAX3224E and MAX3226E, differentiated primarily by driver/receiver counts and maximum data rates.

Replacement Considerations

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