MAX3245ECTX+

Overview

The MAX3245ECTX+ is a lead-free, RoHS-compliant RS-232 transceiver in a 36-pin TQFN package with an exposed pad. It supports data rates up to 1Mbps and operates from a single +3.0V to +5.5V supply. The device features AutoShutdown Plus technology, reducing supply current to 1μA when idle. It includes three drivers and five receivers, providing ±15kV ESD protection on all I/O pins. The internal dual charge pump requires only four 0.1μF external capacitors.

Feature Summary

• AutoShutdown Plus functionality automatically reduces power consumption by shutting down the charge pump during periods of inactivity.
• Integrated dual charge pump generates required voltage levels using minimal external capacitance.
• Enhanced electrostatic discharge protection ensures robustness against high-voltage static events.
• Dedicated noninverting receiver output allows continuous monitoring of line activity.

Applications

• Notebook, subnotebook, and palmtop computers
• Cellular phones and battery-powered equipment
• Industrial peripherals and printers

Procurement Notes

Verify the specific suffix 'ECTX+' corresponds to the 36-TQFN package and industrial temperature range (-40°C to +85°C). Confirm that the component is lead-free and RoHS compliant as indicated by the plus sign. Ensure the ordering information matches the exact pinout for the TQFN-EP configuration before procurement.

Selection Notes

Select this component for applications requiring high-speed 1Mbps communication within space-constrained designs. The 36-pin TQFN package offers thermal advantages over larger packages. Consider the AutoShutdown Plus feature for battery-operated systems where minimizing quiescent current is critical for extending operational life.

Part Context

This part belongs to the MAX3245E family of RS-232 transceivers designed for low-power, high-speed serial communications. It shares core electrical characteristics with other variants in the series but differs in packaging and temperature rating. The TQFN form factor provides a compact solution for modern portable electronics.

Replacement Considerations

Direct replacements include other MAX3245E variants such as MAX3245EEUI+T or MAX3245ECWI+T, provided the package footprint and pinout are compatible with the existing design constraints.