MAX3227EAAE+T

Overview

The MAX3227EAAE+T is a single-channel, full-duplex RS-232 transceiver manufactured by Analog Devices Inc./Maxim Integrated. It operates on a single +3.0V to +5.5V supply and achieves a guaranteed data rate of 1Mbps using MegaBaud technology. The device incorporates AutoShutdown Plus, reducing supply current to 1μA when idle for over 30 seconds. It features ±15kV ESD protection (Air-Gap, Contact, Human Body Model) and includes an INVALID output signal. The component is housed in a 16-pin SSOP package and supports an industrial temperature range of -40°C to +85°C.

Feature Summary

• AutoShutdown Plus functionality automatically reduces power consumption by shutting down charge pumps during periods of inactivity.
• Integrated dual charge pump generates internal +5.5V and -5.5V rails from a single low-voltage supply.
• INVALID logic output indicates the presence or absence of valid RS-232 voltage levels at receiver inputs.

Applications

• Notebook, Subnotebook, and Palmtop Computers
• Cellular Phones
• Battery-Powered Equipment
• Hand-Held Equipment
• Automotive

Procurement Notes

Verify the specific ordering suffix against official manufacturer documentation to confirm package type and temperature rating. Confirm RoHS compliance status through the datasheet or certification documents. Ensure the source provides traceable manufacturing lot information. Cross-reference the part number with authorized distributor catalogs to validate authenticity and availability.

Selection Notes

Select this component for applications requiring high-speed 1Mbps communication within space-constrained designs. The integrated charge pump eliminates the need for external negative voltage supplies. Verify that the system's UART timing requirements align with the specified propagation delays and slew rates. Consider the AutoShutdown Plus feature for battery-operated devices requiring minimal standby current.

Part Context

This device belongs to the MAX3224E–MAX3227E family of RS-232 transceivers. It shares core architectural features with the MAX3224E, MAX3225E, and MAX3226E, including the AutoShutdown Plus circuitry and ESD protection specifications. The primary distinction lies in the guaranteed data rate capabilities compared to other members of the series.

Replacement Considerations

Direct replacements include MAX3227EEAE+ and MAX3227EAE+T. Verify pinout compatibility and electrical characteristics before substitution.